WO2019124406A1 - Noise filter for cable - Google Patents

Noise filter for cable Download PDF

Info

Publication number
WO2019124406A1
WO2019124406A1 PCT/JP2018/046649 JP2018046649W WO2019124406A1 WO 2019124406 A1 WO2019124406 A1 WO 2019124406A1 JP 2018046649 W JP2018046649 W JP 2018046649W WO 2019124406 A1 WO2019124406 A1 WO 2019124406A1
Authority
WO
WIPO (PCT)
Prior art keywords
cable
noise filter
noise
ring
resin
Prior art date
Application number
PCT/JP2018/046649
Other languages
French (fr)
Japanese (ja)
Inventor
羽田　正二
Original Assignee
Ntn株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ntn株式会社 filed Critical Ntn株式会社
Publication of WO2019124406A1 publication Critical patent/WO2019124406A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/20—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/28—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder dispersed or suspended in a bonding agent
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
    • H01F1/36—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles
    • H01F1/37—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles in a bonding agent
    • H01F1/375—Flexible bodies
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields

Definitions

  • the present invention relates to a cable noise filter used to suppress noise generated from a cable.
  • a first insulating layer is formed outside the core wire, a shield layer made of metal is formed outside the first insulating layer, and a second insulating layer is formed outside the shield layer.
  • An amorphous magnetic layer is formed on at least a part of the outer side of the second insulating layer, and an outer insulating coating made of insulating resin or rubber is formed on the outer side of the amorphous magnetic layer.
  • a shielded cable is formed, for example, by winding an amorphous magnetic material tape along the length of the shield wire.
  • the amorphous magnetic material tape is obtained by mixing and molding amorphous magnetic material powder and a synthetic resin such as polyester, and the amorphous magnetic material tape is concentrated on a part of the shielded wire. It is described that a common mode choke coil closely attached to a shield wire can be formed by winding the coil many times.
  • Patent Document 2 describes a noise suppression band for an electric cable, which is used by being spirally wound around a conductor.
  • the noise suppression band for electric cable is a magnetic thin strip made of a Co-based amorphous that can be bent by 90 degrees, and having a flexible resin adhered to at least one surface. This is used by spirally winding around the conductor.
  • the amorphous magnetic tape described in Patent Document 1 is integrally incorporated in a shielded wire.
  • the noise suppression band for an electric cable described in Patent Document 2 is used by being wound around a conductor, and intended to be used for a cable that is already attached to a device and generates noise. It has not been.
  • An object of the present invention is to provide a noise filter for a cable, which can suppress the noise generated from the cable with insufficient noise countermeasures in a retrofit.
  • the noise filter for a cable of the present invention is It is a molded body in which a natural resin, a synthetic resin or a silicone resin having flexibility and insulation and a large number of magnetic particles are mixed, and is characterized in that it can be retrofitted around the outer periphery of a cable.
  • the noise filter for cables of the present invention is
  • the magnetic particles are fine particles of a ferromagnetic material having an insulating film formed on the surface.
  • the noise filter for cables of the present invention is The ferromagnetic fine particles are characterized in that they are fine particles of iron, nickel, cobalt or ferrite having a low insulating property.
  • the noise filter for cables of the present invention is The magnetic particles are characterized in that they are fine particles of ferrite having high insulating properties.
  • the noise filter for cables of the present invention is It is characterized in that it can be maintained in a bent shape and can be wound in a ring around a cable.
  • the noise filter for cables of the present invention is It is a ring-like elastic body when no force is applied, and is characterized in that a part of the ring is cut and the cable can be inserted into the ring by pushing out the cut portion. .
  • the noise filter for cables of the present invention is It is a sticky silicone tape and is characterized in that it can be attached to a cable.
  • the noise filter for cables of the present invention is It is characterized in that it is in the form of a string or a band, and can be spirally wound around a cable.
  • produces from the cable with inadequate noise measures can be suppressed by retrofitting.
  • FIG. 2A shows the shape of the rod during storage.
  • FIG. 2B shows a state in which the cable is wound in a ring shape.
  • FIG. 3A shows the shape of the ring during storage.
  • FIG. 3B shows a shape in which the cut portion is pushed out.
  • FIG. 3C shows the shape of a ring into which a cable is inserted.
  • FIG. 1 is a cross-sectional view showing an example of the structure of the cable noise filter 1 according to the embodiment of the present invention.
  • the cable noise filter 1 is a molded body in which a resin 10 having flexibility and insulating properties and a large number of magnetic particles 20 are mixed.
  • the cable noise filter 1 is manufactured by mixing and molding the resin 10 and a large number of magnetic particles 20.
  • the resin 10 is, for example, a natural resin, a synthetic resin or a silicone resin.
  • the magnetic particles 20 be fine particles because the eddy current loss is reduced. Since the resin 10 has insulation, the magnetic particles 20 may not necessarily have insulation. However, the plurality of magnetic particles 20 may be in contact in the manufacturing process. Therefore, it is desirable that the magnetic particles 20 be, for example, fine particles of ferromagnetic material having an insulating film formed on the surface.
  • the ferromagnetic material used to manufacture the magnetic particles 20 is iron, nickel, cobalt, ferrite having a low insulating property, or the like. Alternatively, it is desirable that the magnetic particles 20 be, for example, fine particles of ferrite having high insulating properties.
  • the cable noise filter 1 is wound around the outer periphery of the cable and used.
  • the cable may be a single cable or a plurality of cables coated with an insulating layer.
  • the cable may generate noise. In such a case, noise can be suppressed by additionally winding the cable noise filter 1 around the cable.
  • FIG. 2 shows a first cable noise filter 2 which is a specific example of the cable noise filter 1 of FIG.
  • the cable noise filter 2 is rod-shaped when stored.
  • the shape of the cross section is a square, a hexagon, a circle or the like.
  • the cable noise filter 2 is bendable, and retains its shape when bent into a certain shape.
  • the cable noise noise filter 2 can be wound in a ring around the outer periphery of the cable 30 so that one end and the other end overlap, as shown in FIG. 2 (B).
  • the cable noise filter 2 maintains its shape once it is wound around the cable 30 in a ring shape.
  • FIG. 3 shows a second cable noise filter 3 which is a specific example of the cable noise filter 1 of FIG.
  • the cable noise filter 3 is an elastic body, and is ring-shaped when no force is applied.
  • the shape of the cross section is a square, a hexagon, a circle or the like.
  • the cable noise filter 3 is cut at a predetermined position of the ring, and one end and the other end overlap in the cut portion. By applying a force in the direction of the arrow in FIG. 3B and pulling it outward, the cut portion can be pushed apart. As shown in FIG.
  • FIG. 4 shows a third cable noise filter 4 which is a specific example of the cable noise filter 1 of FIG.
  • the cable noise filter 4 is a silicone tape.
  • the cable noise filter 4 has a predetermined thickness of about several millimeters.
  • the cable noise filter 4 has adhesiveness. As shown in FIG. 4, the cable noise filter 4 is used by being attached to the outer periphery of the cable 30.
  • FIG. 5 shows a fourth cable noise filter 5 which is a specific example of the cable noise filter 1 of FIG.
  • the cable noise filter 5 is in the form of a string having a predetermined thickness or a band having a predetermined thickness. As shown in FIG. 5, the cable noise filter 5 is used by being spirally wound around the outer periphery of the cable 30. The cable noise filter 5 may be wound over the entire length of the cable 30, or may be wound only on a predetermined portion.
  • the present invention it is possible to retroactively suppress noise generated from a cable whose noise countermeasure is insufficient.
  • common mode noise can be suppressed by winding the cable noise filter of the present invention around a cable in which a plurality of cables are put together.
  • magnetism can be shielded at the wound portion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Communication Cables (AREA)
  • Insulated Conductors (AREA)
  • Soft Magnetic Materials (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

The purpose of the present invention is to minimize, through retrofitting, noise produced from a cable in which noise countermeasures are insufficient. A noise filter 1 for a cable, the noise filter 1 being a molded item in which a flexible and insulating resin 110 and magnetic particles 20 are mixed. The resin 10 is a natural resin, a synthetic resin, or a silicone resin. Winding the noise filter 1 for a cable, as a retrofit, around the outer periphery of a cable in which noise countermeasures are insufficient makes it possible to minimize noise produced from the cable.

Description

ケーブル用ノイズフィルターCable noise filter
　本発明は、ケーブルから生じるノイズを抑制するために用いられるケーブル用ノイズフィルターに関する。 The present invention relates to a cable noise filter used to suppress noise generated from a cable.
　特許文献１は、芯線の外側に第１の絶縁層が形成されており、第１の絶縁層の外側に金属よりなるシールド層が形成されており、シールド層の外側に第２の絶縁層が形成されており、第２の絶縁層の外側の少なくとも一部の領域にアモルファス磁性体層が形成されており、アモルファス磁性体層の外側に絶縁性樹脂又ゴムからなる外層絶縁被覆層が形成されたシールド電線を開示する。
　アモルファス磁性体層は、例えば、アモルファス磁性体テープをシールド電線の長さ方向に渡って巻回することにより構成される。そして、特許文献１には、アモルファス磁性体テープはアモルファス磁性体粉末とポリエステル等の合成樹脂とを混合して成形することにより得られること、およびアモルファス磁性体テープをシールド電線の一部において集中して多数回巻回することにより、シールド電線に密着したコモンモードチョークコイルを形成できることが記載されている。 In Patent Document 1, a first insulating layer is formed outside the core wire, a shield layer made of metal is formed outside the first insulating layer, and a second insulating layer is formed outside the shield layer. An amorphous magnetic layer is formed on at least a part of the outer side of the second insulating layer, and an outer insulating coating made of insulating resin or rubber is formed on the outer side of the amorphous magnetic layer. Disclosed a shielded cable.
The amorphous magnetic material layer is formed, for example, by winding an amorphous magnetic material tape along the length of the shield wire. Then, in Patent Document 1, the amorphous magnetic material tape is obtained by mixing and molding amorphous magnetic material powder and a synthetic resin such as polyester, and the amorphous magnetic material tape is concentrated on a part of the shielded wire. It is described that a common mode choke coil closely attached to a shield wire can be formed by winding the coil many times.
　特許文献２には、導体の周囲にスパイラル状に巻き付けて使用される電気ケーブル用ノイズ抑制帯が記載されている。この電気ケーブル用ノイズ抑制帯は、９０度曲げが可能なＣｏ基アモルファスからなり、少なくとも一方の面に可撓性を有する樹脂が接着された磁性薄帯である。これは、導体の周囲にスパイラル状に巻き付けて使用される。 Patent Document 2 describes a noise suppression band for an electric cable, which is used by being spirally wound around a conductor. The noise suppression band for electric cable is a magnetic thin strip made of a Co-based amorphous that can be bent by 90 degrees, and having a flexible resin adhered to at least one surface. This is used by spirally winding around the conductor.
特開平６－２０３６５２号公報Japanese Patent Laid-Open No. 6-203652 特開２０００－１３３９８２号公報Japanese Patent Laid-Open No. 2000-133982
　特許文献１に記載されているアモルファス磁性体テープは、シールド電線に一体的に組み込まれている。特許文献２に記載されている電気ケーブル用ノイズ抑制帯は、導体の周囲に巻き付けて使用されものであって、既に装置に取り付けられており、ノイズを発生しているケーブルに使用することは意図されていない。 The amorphous magnetic tape described in Patent Document 1 is integrally incorporated in a shielded wire. The noise suppression band for an electric cable described in Patent Document 2 is used by being wound around a conductor, and intended to be used for a cable that is already attached to a device and generates noise. It has not been.
　本発明の目的は、ノイズ対策が不十分なケーブルから発生するノイズを後付けで抑制することができるケーブル用ノイズフィルターを提供することである。 An object of the present invention is to provide a noise filter for a cable, which can suppress the noise generated from the cable with insufficient noise countermeasures in a retrofit.
　上記目的を達成するために、本発明のケーブル用ノイズフィルターは、
　柔軟性および絶縁性を有する天然樹脂、合成樹脂またはシリコーン樹脂と、多数の磁性体粒子とが混合された成形体であって、ケーブルの外周に後付けで巻き付けることができることを特徴とする。 In order to achieve the above object, the noise filter for a cable of the present invention is
It is a molded body in which a natural resin, a synthetic resin or a silicone resin having flexibility and insulation and a large number of magnetic particles are mixed, and is characterized in that it can be retrofitted around the outer periphery of a cable.
　好ましくは、本発明のケーブル用ノイズフィルターは、
　前記磁性体粒子が、表面に絶縁被膜が形成された強磁性体の微粒子であることを特徴とする。 Preferably, the noise filter for cables of the present invention is
The magnetic particles are fine particles of a ferromagnetic material having an insulating film formed on the surface.
　好ましくは、本発明のケーブル用ノイズフィルターは、
　前記強磁性体の微粒子が、鉄、ニッケル、コバルト、または絶縁性の低いフェライトの微粒子であることを特徴とする。 Preferably, the noise filter for cables of the present invention is
The ferromagnetic fine particles are characterized in that they are fine particles of iron, nickel, cobalt or ferrite having a low insulating property.
　好ましくは、本発明のケーブル用ノイズフィルターは、
　前記磁性体粒子が、絶縁性の高いフェライトの微粒子であることを特徴とする。 Preferably, the noise filter for cables of the present invention is
The magnetic particles are characterized in that they are fine particles of ferrite having high insulating properties.
　好ましくは、本発明のケーブル用ノイズフィルターは、
　曲げられた形状を維持し、ケーブルにリング状に巻き付けることができることを特徴とする。 Preferably, the noise filter for cables of the present invention is
It is characterized in that it can be maintained in a bent shape and can be wound in a ring around a cable.
　好ましくは、本発明のケーブル用ノイズフィルターは、
　力が加えられていないときにはリング状の弾性体であり、当該リングの一部が切断されており、切断された部分を押し広げることによってリングの中にケーブルを挿入することができることを特徴とする。 Preferably, the noise filter for cables of the present invention is
It is a ring-like elastic body when no force is applied, and is characterized in that a part of the ring is cut and the cable can be inserted into the ring by pushing out the cut portion. .
　好ましくは、本発明のケーブル用ノイズフィルターは、
　粘着性のあるシリコーンテープであり、ケーブルに張り付けることができることを特徴とする。 Preferably, the noise filter for cables of the present invention is
It is a sticky silicone tape and is characterized in that it can be attached to a cable.
　好ましくは、本発明のケーブル用ノイズフィルターは、
　紐状または帯状であって、ケーブルにスパイラル状に巻き付けることができることを特徴とする。 Preferably, the noise filter for cables of the present invention is
It is characterized in that it is in the form of a string or a band, and can be spirally wound around a cable.
　本発明によれば、ノイズ対策が不十分なケーブルから発生するノイズを後付けで抑制することができる。 ADVANTAGE OF THE INVENTION According to this invention, the noise which generate | occur | produces from the cable with inadequate noise measures can be suppressed by retrofitting.
本発明の実施形態に係るケーブル用ノイズフィルターの構造の一例を示す断面図である。It is a sectional view showing an example of the structure of the noise filter for cables concerning the embodiment of the present invention. 図１のケーブル用ノイズフィルターの具体例である第１のケーブル用ノイズフィルターの一例を示す図である。図２（Ａ）は保管時における棒の形状を示す。図２（Ｂ）はケーブルにリング状に巻かれている状態を示す。It is a figure which shows an example of the 1st noise filter for cables which is a specific example of the noise filter for cables of FIG. FIG. 2A shows the shape of the rod during storage. FIG. 2B shows a state in which the cable is wound in a ring shape. 図１のケーブル用ノイズフィルターの具体例である第２のケーブル用ノイズフィルターの一例を示す図である。図３（Ａ）は保管時におけるリングの形状を示す。図３（Ｂ）は切断部分を押し広げた形状を示す。図３（Ｃ）は内側にケーブルが挿入されたリングの形状を示す。It is a figure which shows an example of the 2nd noise filter for cables which is a specific example of the noise filter for cables of FIG. FIG. 3A shows the shape of the ring during storage. FIG. 3B shows a shape in which the cut portion is pushed out. FIG. 3C shows the shape of a ring into which a cable is inserted. 図１のケーブル用ノイズフィルターの具体例である第３のケーブル用ノイズフィルターの一例を示す図である。It is a figure which shows an example of the 3rd noise filter for cables which is a specific example of the noise filter for cables of FIG. 図１のケーブル用ノイズフィルターの具体例である第４のケーブル用ノイズフィルターの一例を示す図である。It is a figure which shows an example of the 4th noise filter for cables which is a specific example of the noise filter for cables of FIG.
　以下、本発明の実施形態に係るケーブル用ノイズフィルターについて図面を参照しながら詳細に説明する。なお、実施形態を説明する全図において、共通の構成要素には同一の符号を付し、繰り返しの説明を省略する。 Hereinafter, a noise filter for a cable according to an embodiment of the present invention will be described in detail with reference to the drawings. In all the drawings for explaining the embodiment, the same reference numerals are given to the common components, and the repeated description is omitted.
　図１は、本発明の実施形態に係るケーブル用ノイズフィルター１の構造の一例を示す断面図である。
　ケーブル用ノイズフィルター１は、柔軟性および絶縁性を有する樹脂１０と、多数の磁性体粒子２０とが混合された成形体である。ケーブル用ノイズフィルター１は、樹脂１０と多数の磁性体粒子２０とを混合して成形することにより、製造される。樹脂１０は、例えば天然樹脂、合成樹脂またはシリコーン樹脂である。 FIG. 1 is a cross-sectional view showing an example of the structure of the cable noise filter 1 according to the embodiment of the present invention.
The cable noise filter 1 is a molded body in which a resin 10 having flexibility and insulating properties and a large number of magnetic particles 20 are mixed. The cable noise filter 1 is manufactured by mixing and molding the resin 10 and a large number of magnetic particles 20. The resin 10 is, for example, a natural resin, a synthetic resin or a silicone resin.
　渦電流損が少なくなるため、磁性体粒子２０は微粒子であることが望ましい。
　樹脂１０が絶縁性を有するため、磁性体粒子２０は必ずしも絶縁性を有していなくてもよい。しかし、製造過程で複数の磁性体粒子２０に接触が生じるおそれがある。このため、磁性体粒子２０は、例えば表面に絶縁被膜が形成された強磁性体の微粒子であることが望ましい。磁性体粒子２０の製造に使用される強磁性体は、鉄、ニッケル、コバルト、絶縁性の低いフェライト等である。または、磁性体粒子２０は、例えば絶縁性の高いフェライトの微粒子であることが望ましい。 It is desirable that the magnetic particles 20 be fine particles because the eddy current loss is reduced.
Since the resin 10 has insulation, the magnetic particles 20 may not necessarily have insulation. However, the plurality of magnetic particles 20 may be in contact in the manufacturing process. Therefore, it is desirable that the magnetic particles 20 be, for example, fine particles of ferromagnetic material having an insulating film formed on the surface. The ferromagnetic material used to manufacture the magnetic particles 20 is iron, nickel, cobalt, ferrite having a low insulating property, or the like. Alternatively, it is desirable that the magnetic particles 20 be, for example, fine particles of ferrite having high insulating properties.
　ケーブル用ノイズフィルター１は、ケーブルの外周に巻き付けて使用される。ケーブルは、１本でもよいし、絶縁性の層で被覆された複数のケーブルがまとめられたものであってもよい。
　ノイズ対策が不十分なケーブルが装置に取り付けられているとき、そのケーブルからノイズが発生する場合がある。このような場合、そのケーブルにケーブル用ノイズフィルター１を後付けで巻き付けることにより、ノイズを抑制することができる。 The cable noise filter 1 is wound around the outer periphery of the cable and used. The cable may be a single cable or a plurality of cables coated with an insulating layer.
When a cable with insufficient noise protection is attached to the device, the cable may generate noise. In such a case, noise can be suppressed by additionally winding the cable noise filter 1 around the cable.
　図２は、図１のケーブル用ノイズフィルター１の具体例である第１のケーブル用ノイズフィルター２を示す。
　図２（Ａ）に示すように、保管されているとき、ケーブル用ノイズフィルター２は棒状である。その断面の形状は四角形、六角形、円形等である。ケーブル用ノイズフィルター２は、曲げ可能であり、ある形状に曲げられるとその形状を保つ。ケーブル用ノイズノイズフィルター２は、図２（Ｂ）に示すように、一端と他端が重なるようにケーブル３０の外周にリング状に巻き付けることができる。ケーブル用ノイズフィルター２は、一旦ケーブル３０にリング状に巻き付けられると、その形状を維持する。 FIG. 2 shows a first cable noise filter 2 which is a specific example of the cable noise filter 1 of FIG.
As shown in FIG. 2A, the cable noise filter 2 is rod-shaped when stored. The shape of the cross section is a square, a hexagon, a circle or the like. The cable noise filter 2 is bendable, and retains its shape when bent into a certain shape. The cable noise noise filter 2 can be wound in a ring around the outer periphery of the cable 30 so that one end and the other end overlap, as shown in FIG. 2 (B). The cable noise filter 2 maintains its shape once it is wound around the cable 30 in a ring shape.
　図３は、図１のケーブル用ノイズフィルター１の具体例である第２のケーブル用ノイズフィルター３を示す。
　図３（Ａ）に示すように、ケーブル用ノイズフィルター３は弾性体であって、力を加えられていないときはリング状である。その断面の形状は四角形、六角形、円形等である。ケーブル用ノイズフィルター３はリングの所定の場所が切断されており、切断された部分において一端と他端が重なっている。図３（Ｂ）の矢印の方向に力を加えて外側に引っ張ることによって切断された部分を押し広げることができる。切断された部分を押し広げてリングの中にケーブル３０を挿入した後に力を無くすと、図３（Ｃ）に示すように、ケーブル用ノイズフィルター３はリングの中にケーブル３０が挿入された状態で元のリング状に戻る。
　なお、ケーブル用ノイズフィルター３は、リングの中にケーブル３０が挿入された状態において、切断された部分において一端と他端が重なっているのではなく、切断された部分において隙間を有していてもよい。 FIG. 3 shows a second cable noise filter 3 which is a specific example of the cable noise filter 1 of FIG.
As shown in FIG. 3A, the cable noise filter 3 is an elastic body, and is ring-shaped when no force is applied. The shape of the cross section is a square, a hexagon, a circle or the like. The cable noise filter 3 is cut at a predetermined position of the ring, and one end and the other end overlap in the cut portion. By applying a force in the direction of the arrow in FIG. 3B and pulling it outward, the cut portion can be pushed apart. As shown in FIG. 3C, when the cable noise filter 3 is inserted into the ring, the cable 30 is inserted into the ring when the force is removed after the cut portion is spread and the cable 30 is inserted into the ring. Return to the original ring shape.
In the cable noise filter 3, when the cable 30 is inserted in the ring, one end and the other end do not overlap in the cut portion, but there is a gap in the cut portion It is also good.
　図４は、図１のケーブル用ノイズフィルター１の具体例である第３のケーブル用ノイズフィルター４を示す。
　ケーブル用ノイズフィルター４はシリコーンテープである。ケーブル用ノイズフィルター４は、数ミリ程度の所定の厚さを有する。ケーブル用ノイズフィルター４は、粘着性を有している。図４に示すように、ケーブル用ノイズフィルター４は、ケーブル３０の外周に張り付けて使用される。 FIG. 4 shows a third cable noise filter 4 which is a specific example of the cable noise filter 1 of FIG.
The cable noise filter 4 is a silicone tape. The cable noise filter 4 has a predetermined thickness of about several millimeters. The cable noise filter 4 has adhesiveness. As shown in FIG. 4, the cable noise filter 4 is used by being attached to the outer periphery of the cable 30.
　図５は、図１のケーブル用ノイズフィルター１の具体例である第４のケーブル用ノイズフィルター５を示す。
　ケーブル用ノイズフィルター５は、所定の太さを有する紐状または所定の厚さを有する帯状である。図５に示すように、ケーブル用ノイズフィルター５はケーブル３０の外周にスパイラル状に巻き付けて使用される。ケーブル用ノイズフィルター５は、ケーブル３０の全長に渡って巻き付けてもよいし、所定の部分だけに巻き付けてもよい FIG. 5 shows a fourth cable noise filter 5 which is a specific example of the cable noise filter 1 of FIG.
The cable noise filter 5 is in the form of a string having a predetermined thickness or a band having a predetermined thickness. As shown in FIG. 5, the cable noise filter 5 is used by being spirally wound around the outer periphery of the cable 30. The cable noise filter 5 may be wound over the entire length of the cable 30, or may be wound only on a predetermined portion.
　以上説明したように、本発明によれば、ノイズ対策が不十分なケーブルから発生するノイズを後付けで抑制することができる。例えば、複数のケーブルが１つにまとめられたケーブルに本発明のケーブル用ノイズフィルターを巻き付けることでコモンモードノイズを抑制することができる。また、本発明のケーブル用ノイズフィルターをケーブルに巻き付けることで巻き付けられた部分において磁気を遮蔽することができる。 As described above, according to the present invention, it is possible to retroactively suppress noise generated from a cable whose noise countermeasure is insufficient. For example, common mode noise can be suppressed by winding the cable noise filter of the present invention around a cable in which a plurality of cables are put together. In addition, by winding the cable noise filter of the present invention around a cable, magnetism can be shielded at the wound portion.
　以上、本発明の実施形態について説明したが、設計または製造上の都合やその他の要因によって必要となる様々な修正や組み合わせは、請求項に記載されている発明や発明の実施形態に記載されている具体例に対応する発明の範囲に含まれる。 Although the embodiments of the present invention have been described above, various modifications and combinations that are necessary due to design or manufacturing convenience and other factors are described in the embodiments of the invention described in the claims. It is included in the scope of the invention corresponding to the specific example.
１，２，３，４，５…ケーブル用ノイズフィルター、１０…樹脂、２０…磁性体粒子、３０…ケーブル 1, 2, 3, 4, 5 ... noise filter for cable, 10 ... resin, 20 ... magnetic particles, 30 ... cable

Claims (8)

  1. 　柔軟性および絶縁性を有する天然樹脂、合成樹脂またはシリコーン樹脂と、多数の磁性体粒子とが混合された成形体であって、ケーブルの外周に後付けで巻き付けることができることを特徴とするケーブル用ノイズフィルター。 A noise for a cable, which is a molded body in which a natural resin, a synthetic resin, or a silicone resin having flexibility and insulation and a large number of magnetic particles are mixed and which can be wound around the outer periphery of a cable. filter.
  2. 　前記磁性体粒子が、表面に絶縁被膜が形成された強磁性体の微粒子であることを特徴とする請求項１に記載のケーブル用ノイズフィルター。 The cable noise filter according to claim 1, wherein the magnetic particles are fine particles of a ferromagnetic material having an insulating coating formed on the surface.
  3. 　前記強磁性体の微粒子が、鉄、ニッケル、コバルト、または絶縁性の低いフェライトの微粒子であることを特徴とする請求項２に記載のケーブル用ノイズフィルター。 The noise filter for a cable according to claim 2, wherein the ferromagnetic fine particles are fine particles of iron, nickel, cobalt or ferrite having a low insulating property.
  4. 　前記磁性体粒子が、絶縁性の高いフェライトの微粒子であることを特徴とする請求項１に記載のケーブル用ノイズフィルター。 The cable noise filter according to claim 1, wherein the magnetic particles are fine particles of ferrite having high insulating properties.
  5. 　曲げられた形状を維持し、ケーブルにリング状に巻き付けることができることを特徴とする請求項１ないし４のいずれか１項に記載のケーブル用ノイズフィルター。 The cable noise filter according to any one of claims 1 to 4, which can maintain a bent shape and can be wound around a cable in a ring shape.
  6. 　力が加えられていないときにはリング状の弾性体であり、当該リングの一部が切断されており、切断された部分を押し広げることによってリングの中にケーブルを挿入することができることを特徴とする請求項１ないし４のいずれか１項に記載のケーブル用ノイズフィルター。 It is a ring-like elastic body when no force is applied, and is characterized in that a part of the ring is cut and the cable can be inserted into the ring by pushing out the cut portion. The noise filter for cables according to any one of claims 1 to 4.
  7. 　粘着性のあるシリコーンテープであり、ケーブルに張り付けることができることを特徴とする請求項１ないし４のいずれか１項に記載のケーブル用ノイズフィルター。 A noise filter for a cable according to any one of claims 1 to 4, which is a sticky silicone tape and can be attached to a cable.
  8. 　紐状または帯状であって、ケーブルにスパイラル状に巻き付けることができることを特徴とする請求項１ないし４のいずれか１項に記載のケーブル用ノイズフィルター。 The cable noise filter according to any one of claims 1 to 4, wherein the noise filter is in the form of a string or a band, and can be spirally wound around a cable.
PCT/JP2018/046649 2017-12-21 2018-12-18 Noise filter for cable WO2019124406A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017245341A JP2019114611A (en) 2017-12-21 2017-12-21 Cable noise filter
JP2017-245341 2017-12-21

Publications (1)

Publication Number Publication Date
WO2019124406A1 true WO2019124406A1 (en) 2019-06-27

Family

ID=66994721

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/046649 WO2019124406A1 (en) 2017-12-21 2018-12-18 Noise filter for cable

Country Status (2)

Country Link
JP (1) JP2019114611A (en)
WO (1) WO2019124406A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4270422A1 (en) 2020-12-28 2023-11-01 Toda Kogyo Corp. Ferrite sheet strip, and antenna device and cable using ferrite sheet strip

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4812902U (en) * 1971-06-24 1973-02-13
JPH01283900A (en) * 1988-05-10 1989-11-15 Murata Mfg Co Ltd Composite material for molding sheath and sheathed electronic component
JPH03211906A (en) * 1990-01-16 1991-09-17 Hitachi Ltd Noise filter, cylindrical magnetic material and cable
JPH0395606U (en) * 1990-01-10 1991-09-30
JPH04139797A (en) * 1990-09-29 1992-05-13 Okaya Electric Ind Co Ltd Noise absorbing bundle line band
JPH05327265A (en) * 1992-05-25 1993-12-10 Murata Mfg Co Ltd Noise elimination filter
JPH10275994A (en) * 1997-03-28 1998-10-13 Nec Corp Core for emi countermeasure
JPH1174678A (en) * 1997-08-27 1999-03-16 Tokin Corp Noise absorption core
JP2002025356A (en) * 2000-07-10 2002-01-25 Oki Electric Cable Co Ltd Broadband shield cable
JP2006313856A (en) * 2005-05-09 2006-11-16 Daito Giken:Kk Noise reducing tool
JP2016207361A (en) * 2015-04-17 2016-12-08 日立金属株式会社 Noise suppression cable manufacturing method and winding aid

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4812902U (en) * 1971-06-24 1973-02-13
JPH01283900A (en) * 1988-05-10 1989-11-15 Murata Mfg Co Ltd Composite material for molding sheath and sheathed electronic component
JPH0395606U (en) * 1990-01-10 1991-09-30
JPH03211906A (en) * 1990-01-16 1991-09-17 Hitachi Ltd Noise filter, cylindrical magnetic material and cable
JPH04139797A (en) * 1990-09-29 1992-05-13 Okaya Electric Ind Co Ltd Noise absorbing bundle line band
JPH05327265A (en) * 1992-05-25 1993-12-10 Murata Mfg Co Ltd Noise elimination filter
JPH10275994A (en) * 1997-03-28 1998-10-13 Nec Corp Core for emi countermeasure
JPH1174678A (en) * 1997-08-27 1999-03-16 Tokin Corp Noise absorption core
JP2002025356A (en) * 2000-07-10 2002-01-25 Oki Electric Cable Co Ltd Broadband shield cable
JP2006313856A (en) * 2005-05-09 2006-11-16 Daito Giken:Kk Noise reducing tool
JP2016207361A (en) * 2015-04-17 2016-12-08 日立金属株式会社 Noise suppression cable manufacturing method and winding aid

Also Published As

Publication number Publication date
JP2019114611A (en) 2019-07-11

Similar Documents

Publication Publication Date Title
US7714683B2 (en) Inductance device, filter device comprising the same, and noise filter comprising the same
JP2015153736A (en) noise suppression cable
KR20160118939A (en) Magnetic shield wire and manufacturing method thereof, as well as magnetic shield braid sleeve and magnetic shield cable using the same
US20160293295A1 (en) Shielded cable
US20110316662A1 (en) Winding arrangement for a transformer or for a throttle
US9659687B2 (en) Noise reduction cable
WO2019124406A1 (en) Noise filter for cable
JP2012124396A (en) Toroidal coil
JP5393097B2 (en) Alpha winding coil
US9484128B2 (en) Noise suppression cable
US9734939B2 (en) Noise suppression cable
JP2010147199A (en) Braided-wire toroidal coil
JP2016024953A (en) Noise shielding tape and noise shielded cable
JP2011023561A (en) Braided wire toroidal coil and manufacturing method thereof
JP6439594B2 (en) Noise suppression cable
JP2010050241A (en) Coil for electric equipment and electric wire for coil
JP2014220466A (en) Coil
CN216818059U (en) Inductance device
RU194412U1 (en) Noise suppression cable
GB1591162A (en) Ferro-magnetic core
TWI803230B (en) Inductor
JP6965769B2 (en) Electromagnetic molding coil
JP2023071390A (en) Noise filter and cable with noise filter
JP2016226219A (en) Conduit tube with noise suppression function
JP2008098305A (en) Inductance element

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18891288

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18891288

Country of ref document: EP

Kind code of ref document: A1