JP6871298B2 - Noise countermeasure member - Google Patents

Noise countermeasure member Download PDF

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JP6871298B2
JP6871298B2 JP2019077830A JP2019077830A JP6871298B2 JP 6871298 B2 JP6871298 B2 JP 6871298B2 JP 2019077830 A JP2019077830 A JP 2019077830A JP 2019077830 A JP2019077830 A JP 2019077830A JP 6871298 B2 JP6871298 B2 JP 6871298B2
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cylindrical
cylindrical case
connecting portion
cable
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JP2020177974A5 (en
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大資 石原
大資 石原
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Riken Corp
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Priority to PCT/JP2020/016189 priority patent/WO2020213540A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/06—Fixed inductances of the signal type  with magnetic core with core substantially closed in itself, e.g. toroid
    • 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
    • H01F27/02—Casings
    • H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements
    • 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
    • H01F1/147—Alloys characterised by their composition

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
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  • Chemical & Material Sciences (AREA)
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Description

本発明は、ノイズ対策部材に関する。 The present invention relates to a noise suppression member.

従来、自動車の各部に配置された電子部品や電子機器に繋がるケーブルに伝播するノイズ電流を減衰させるために、環状に配置される磁性体と、該磁性体を収容するケースとを備えるノイズ対策部材が知られている。特許文献１には、磁性体と、この磁性体を格納したパッケージとでなり、この略中心に信号線を貫通させて取り付けられるシールド部品において、前記磁性体をノイズ減衰量の帯域が異なる少なくとも２つ以上の磁性体で形成し、前記各磁性体が前記信号線に沿って直線状に並べられるようにして同一の前記パッケージ内に配設してなることを特徴とするシールド部品が記載されている。 Conventionally, a noise countermeasure member including a magnetic material arranged in an annular shape and a case accommodating the magnetic material in order to attenuate a noise current propagating in an electronic component or a cable connected to an electronic device arranged in each part of an automobile. It has been known. Patent Document 1 describes a magnetic material and a package containing the magnetic material, and in a shield component attached by passing a signal line through the substantially center thereof, the magnetic material has at least two different noise attenuation bands. Described is a shield component formed of one or more magnetic materials, wherein the magnetic materials are arranged in the same package so as to be linearly arranged along the signal line. There is.

特開平５−２９１５２号公報Japanese Unexamined Patent Publication No. 5-291152

しかしながら、上述したような従来技術においては、複数個の磁性体を、磁性体を一つのケースの中心軸方向に沿って並べて収納しているため、ノイズ対策部材がケーブル軸方向に長くなる。このため、挿通させたケーブルを屈曲させた時に、ノイズ対策部材に負荷がかかり、ノイズ減衰量が低下してしまう。特に、自動車の電子部品に備えられたケーブルは、狭いスペースにおいて配線されているため、屈曲されていることが多い。また、産業機械向けのインバータやコンバータ等の電子機器も近年小型化していることから、ケーブルが狭いスペース内で屈曲されて配線されていることが多い。よって、ケーブル屈曲時にノイズ対策部材に負荷がかからないことが望まれている。 However, in the conventional technique as described above, since the plurality of magnetic materials are stored side by side along the central axis direction of one case, the noise suppression member becomes long in the cable axis direction. Therefore, when the inserted cable is bent, a load is applied to the noise countermeasure member, and the noise attenuation amount is reduced. In particular, cables provided in electronic components of automobiles are often bent because they are wired in a narrow space. In addition, since electronic devices such as inverters and converters for industrial machines have become smaller in recent years, cables are often bent and wired in a narrow space. Therefore, it is desired that no load is applied to the noise suppression member when the cable is bent.

また、ノイズ減衰量は、ケーブルを挿通させる管状磁性体の数を変更することによって調節することができるが、従来１つのケースに磁性体を収容しているため、磁性体の個数を、磁性体を収容するケース単位でしか調節することができず、ノイズ減衰量の細かな調節が困難であった。 Further, the amount of noise attenuation can be adjusted by changing the number of tubular magnetic materials through which the cable is inserted. However, since the magnetic materials are conventionally housed in one case, the number of magnetic materials can be changed. It was difficult to finely adjust the amount of noise attenuation because it could only be adjusted for each case that accommodates the magnet.

そこで、本発明は、ケーブルの屈曲に対して追従することができ、かつノイズ減衰効果の調節が容易なノイズ対策部材を提供することを課題とする。 Therefore, it is an object of the present invention to provide a noise countermeasure member that can follow the bending of a cable and can easily adjust the noise attenuation effect.

本発明の要旨構成は次のとおりである。
［１］ 単一のケーブルを挿通させるように配置された第１および第２の管状磁性体と、
前記第１および第２の管状磁性体をそれぞれ収容するとともに、前記ケーブルを挿通させる中空部を区画した、第１および第２の円筒状ケースと、
前記第１の円筒状ケースの片端に設けられ、該第１の円筒状ケースを、該片端側で隣接する前記第２の円筒状ケースと連結させる第１連結部と、
前記第２の円筒状ケースの片端に設けられ、該第２の円筒状ケースを、該片端側で隣接する前記第１の円筒状ケースと連結させる第２連結部と、
を有し、
前記第１および前記第２の円筒状ケースは、前記第１連結部および前記第２連結部によって着脱可能に連結され、
連結された前記第１および第２の円筒状ケース間の連結角度が、挿通される前記ケーブルの屈曲に応じて変化する、ノイズ対策部材。
［２］ 前記第１連結部は、前記ケーブルを挿通可能な内径を有する円筒状で、前記第１の円筒状ケースの中心軸を取り囲むように筒壁が設けられ、該筒壁には前記第１の円筒状ケースの中心軸方向に沿って延在する少なくとも一つのスリットが設けられ、先端部の外周部に返しを有し、
前記第２連結部は、前記ケーブルを挿通可能な内径を有するテーパー円筒状であり、前記第２の円筒状ケースの円筒の先端外周部に連設した筒壁を備え、前記第２の円筒状ケースの片端から離れるに従って筒壁の内径が漸減し、先端部が前記返しと遊嵌可能な内径を有する、上記［１］に記載のノイズ対策部材。
［３］ 前記第１および第２の円筒状ケースの片端側には、円筒の先端外周部から径方向内側に向かって延在し、前記中空部と連続した第１および第２の開口部を区画する第１および第２の円板部がそれぞれ設けられており、
前記第１連結部は、前記第１の円板部上に設けられ、曲面を有するスタッド部を含み、
前記第２連結部は、前記第２の円板部上に設けられ、前記スタッド部を可動に嵌合するソケット部を含む、上記［１］に記載のノイズ対策部材。
［４］ 前記第１連結部は、前記ケーブルを挿通可能な内径を有する円筒状で、前記第１の円筒状ケースの中心軸を取り囲むように筒壁が設けられ、該筒壁には前記第１の円筒状ケースの中心軸方向に沿って延在する少なくとも一つのスリットが設けられ、前記第２の円筒状ケースの片端から離れるに従って前記筒壁の外径が漸増したのち漸減し、
前記第２連結部は、円筒状で、前記第２の円筒状ケースの中心軸を取り囲むように筒壁が設けられ、該筒壁は、前記第１連結部を挿入可能な内径を有する胴部と、先端部が前記第１連結部の外径の最大径よりも小さくかつ前記ケーブルを挿通可能な内径を有する先端部とを含む、上記［１］に記載のノイズ対策部材。
［５］ 前記第１および第２の円筒状ケースは、円筒を中心軸方向に沿って複数に分割した形状のサブケースがヒンジ部で開閉可能に連結されてなり、前記第１および第２の円筒状ケースを構成する該サブケースには、複数に分割された前記第１および第２の管状磁性体が１つずつ収容される、上記［１］〜［４］のいずれか１項に記載のノイズ対策部材。
［６］ 前記第１および第２の円筒状ケースは、円筒を中心軸方向に沿って複数に分割した形状のサブケースがヒンジ部で開閉可能に連結されてなり、前記第１および第２の円筒状ケースを構成する該サブケースには、複数に分割された前記第１および第２の管状磁性体が１つずつ収容され、
前記第１連結部は、前記第１の円筒状ケースを閉じた状態において、前記ケーブルを挿通可能な内径を有する円筒状をなし、前記第１の円筒状ケースの中心軸を取り囲むように筒壁が設けられ、前記第１の円筒状ケースの片端から離れるに従って前記筒壁の外径が漸増したのち漸減し、
前記第２連結部は、前記第２の円筒状ケースを閉じた状態において、円筒状をなし、前記第２の円筒状ケースの中心軸を取り囲むように筒壁が設けられ、該筒壁は、前記第１連結部を挿入可能な内径を有する胴部と、前記第１連結部の外径の最大径よりも小さくかつ前記ケーブルを挿通可能な内径を有する先端部とを含み、
前記円筒状ケースの開閉によって、前記第１および第２の円筒状ケース同士の連結が着脱可能である、上記［１］に記載のノイズ対策部材。
［７］ 前記第１の管状磁性体は、前記第２の管状磁性体と、ノイズ減衰量の帯域が互いに異なる、上記［１］〜［６］のいずれか１項に記載のノイズ対策部材。
［８］ 前記第１および第２の円筒状ケース間の連結角度が、３°以上４５°以下である、上記［１］〜［７］のいずれか１項に記載のノイズ対策部材。
［９］ 管状磁性体の径方向に直交する方向の寸法が、３ｍｍ以上３０ｍｍ以下である、上記［１］〜［８］のいずれか１項に記載のノイズ対策部材。 The gist structure of the present invention is as follows.
[1] A first and second tubular magnetic material arranged so as to allow a single cable to be inserted,
A first and second cylindrical case containing the first and second tubular magnetic materials, respectively, and partitioning a hollow portion through which the cable is inserted.
A first connecting portion provided at one end of the first cylindrical case and connecting the first cylindrical case to the adjacent second cylindrical case on the one end side.
A second connecting portion provided at one end of the second cylindrical case and connecting the second cylindrical case to the adjacent first cylindrical case on the one end side.
Have,
The first and second cylindrical cases are detachably connected by the first connecting portion and the second connecting portion.
A noise suppression member in which the connection angle between the connected first and second cylindrical cases changes according to the bending of the cable to be inserted.
[2] The first connecting portion has a cylindrical shape having an inner diameter through which the cable can be inserted, and a cylinder wall is provided so as to surround the central axis of the first cylindrical case, and the cylinder wall is provided with the first cylinder wall. At least one slit extending along the central axis direction of one cylindrical case is provided, and has a barb on the outer peripheral portion of the tip portion.
The second connecting portion has a tapered cylindrical shape having an inner diameter through which the cable can be inserted, and includes a cylindrical wall connected to the outer peripheral portion of the tip of the cylinder of the second cylindrical case, and the second cylindrical shape. The noise countermeasure member according to the above [1], wherein the inner diameter of the cylinder wall gradually decreases as the distance from one end of the case increases, and the tip portion has an inner diameter that can be loosely fitted with the barb.
[3] On one end side of the first and second cylindrical cases, first and second openings extending radially inward from the outer peripheral portion of the tip of the cylinder and continuous with the hollow portion are provided. The first and second discs for partitioning are provided, respectively.
The first connecting portion includes a stud portion provided on the first disk portion and having a curved surface.
The noise countermeasure member according to the above [1], wherein the second connecting portion is provided on the second disk portion and includes a socket portion for movably fitting the stud portion.
[4] The first connecting portion has a cylindrical shape having an inner diameter through which the cable can be inserted, and a cylinder wall is provided so as to surround the central axis of the first cylindrical case, and the cylinder wall is provided with the first cylinder wall. At least one slit extending along the central axis direction of the cylindrical case 1 is provided, and the outer diameter of the cylindrical wall gradually increases and then decreases as the distance from one end of the second cylindrical case increases.
The second connecting portion is cylindrical, and a tubular wall is provided so as to surround the central axis of the second cylindrical case, and the tubular wall has a body portion having an inner diameter into which the first connecting portion can be inserted. The noise countermeasure member according to the above [1], which includes a tip portion having a tip portion smaller than the maximum outer diameter of the first connecting portion and an inner diameter through which the cable can be inserted.
[5] The first and second cylindrical cases are formed by connecting subcases having a shape in which a cylinder is divided into a plurality of pieces along the central axis direction so as to be openable and closable at a hinge portion. The item according to any one of [1] to [4] above, wherein the sub-case constituting the cylindrical case houses one each of the first and second tubular magnetic materials divided into a plurality of parts. Noise countermeasure member.
[6] The first and second cylindrical cases are formed by connecting subcases having a shape in which a cylinder is divided into a plurality of pieces along the central axis direction so as to be openable and closable at a hinge portion. In the sub-case constituting the cylindrical case, the first and second tubular magnetic materials divided into a plurality of parts are housed one by one.
The first connecting portion has a cylindrical shape having an inner diameter through which the cable can be inserted when the first cylindrical case is closed, and has a cylindrical wall so as to surround the central axis of the first cylindrical case. Is provided, and the outer diameter of the cylindrical wall gradually increases and then gradually decreases as the distance from one end of the first cylindrical case increases.
The second connecting portion has a cylindrical shape when the second cylindrical case is closed, and a tubular wall is provided so as to surround the central axis of the second cylindrical case. A body portion having an inner diameter into which the first connecting portion can be inserted and a tip portion having an inner diameter smaller than the maximum outer diameter of the first connecting portion and into which the cable can be inserted are included.
The noise suppression member according to the above [1], wherein the connection between the first and second cylindrical cases can be attached and detached by opening and closing the cylindrical case.
[7] The noise countermeasure member according to any one of [1] to [6] above, wherein the first tubular magnetic material has a noise attenuation band different from that of the second tubular magnetic material.
[8] The noise suppression member according to any one of [1] to [7] above, wherein the connection angle between the first and second cylindrical cases is 3 ° or more and 45 ° or less.
[9] The noise suppression member according to any one of [1] to [8] above, wherein the size of the tubular magnetic material in the direction orthogonal to the radial direction is 3 mm or more and 30 mm or less.

本発明によれば、ケーブルの屈曲に対して追従することができ、かつノイズ減衰効果の調節が容易なノイズ対策部材を提供することができる。 According to the present invention, it is possible to provide a noise countermeasure member that can follow the bending of a cable and can easily adjust the noise attenuation effect.

実施形態１に係るノイズ対策部材の形態を示す図である。It is a figure which shows the form of the noise suppression member which concerns on Embodiment 1. FIG. 実施形態１に係る円筒状ケースの形態を示す図である。It is a figure which shows the form of the cylindrical case which concerns on Embodiment 1. FIG. 実施形態２に係るノイズ対策部材の形態を示す図である。It is a figure which shows the form of the noise suppression member which concerns on Embodiment 2. 実施形態２に係る円筒状ケースの形態を示す図である。It is a figure which shows the form of the cylindrical case which concerns on Embodiment 2. 実施形態２に係る第１連結部および第２連結部の変形性を示す図である。It is a figure which shows the deformability of the 1st connection part and the 2nd connection part which concerns on Embodiment 2. FIG. 実施形態３に係るノイズ対策部材の形態を示す図である。It is a figure which shows the form of the noise suppression member which concerns on Embodiment 3. 実施形態３に係る円筒状ケースを開いた形態を示す図である。It is a figure which shows the form which opened the cylindrical case which concerns on Embodiment 3. 実施形態３に係る円筒状ケースを閉じた形態を示す図である。It is a figure which shows the form which closed the cylindrical case which concerns on Embodiment 3. 実施形態４に係るノイズ対策部材の形態を示す図である。It is a figure which shows the form of the noise suppression member which concerns on Embodiment 4. 実施形態４に係る円筒状ケースの形態を示す図である。It is a figure which shows the form of the cylindrical case which concerns on Embodiment 4. 実施形態２に係る円筒状ケースの変形性を示す図である。It is a figure which shows the deformability of the cylindrical case which concerns on Embodiment 2. 実施形態２に係る円筒状ケースの変形性を示す図である。It is a figure which shows the deformability of the cylindrical case which concerns on Embodiment 2. 実施形態２に係る円筒状ケースの変形性を示す図である。It is a figure which shows the deformability of the cylindrical case which concerns on Embodiment 2. 実施形態２に係る円筒状ケースの変形性を示す図である。It is a figure which shows the deformability of the cylindrical case which concerns on Embodiment 2.

発明者らは、上記課題を解決するべく鋭意検討を重ねた。その結果、円筒状ケースを着脱可能かつ可動に連結することにより、ケーブルの屈曲に対して追従することができ、かつノイズ減衰効果の調節が容易なノイズ対策部材を提供することができることを知見し、本発明を完成させるに至った。 The inventors have made extensive studies to solve the above problems. As a result, it was found that by connecting the cylindrical case detachably and movably, it is possible to provide a noise countermeasure member that can follow the bending of the cable and can easily adjust the noise attenuation effect. , The present invention has been completed.

すなわち、本発明のノイズ対策部材は、
単一のケーブルを挿通させるように配置された第１および第２の管状磁性体と、
前記第１および第２の管状磁性体をそれぞれ収容するとともに、前記ケーブルを挿通させる中空部を区画した、第１および第２の円筒状ケースと、
前記第１の円筒状ケースの片端に設けられ、該第１の円筒状ケースを、該片端側で隣接する前記第２の円筒状ケースと連結させる第１連結部と、
前記第２の円筒状ケースの片端に設けられ、該第２の円筒状ケースを、該片端側で隣接する前記第１の円筒状ケースと連結させる第２連結部と、
を有し、
前記第１および前記第２の円筒状ケースは、前記第１連結部および前記第２連結部によって着脱可能に連結され、
連結された前記第１および第２の円筒状ケース間の連結角度が、挿通させる前記ケーブルの屈曲に応じて変化する、ノイズ対策部材である。 That is, the noise suppression member of the present invention is
A first and second tubular magnetic material arranged to allow a single cable to pass through,
A first and second cylindrical case containing the first and second tubular magnetic materials, respectively, and partitioning a hollow portion through which the cable is inserted.
A first connecting portion provided at one end of the first cylindrical case and connecting the first cylindrical case to the adjacent second cylindrical case on the one end side.
A second connecting portion provided at one end of the second cylindrical case and connecting the second cylindrical case to the adjacent first cylindrical case on the one end side.
Have,
The first and second cylindrical cases are detachably connected by the first connecting portion and the second connecting portion.
This is a noise suppression member in which the connection angle between the connected first and second cylindrical cases changes according to the bending of the cable to be inserted.

本発明のノイズ対策部材は、少なくとも２つの円筒状ケースを連結させてなる。連結された各円筒状ケースの中には、管状磁性体が１つずつ収容される。本明細書中においては、連結された複数の円筒状ケースのうち、ある１つの円筒状ケースを第１の円筒状ケースと、該第１の円筒状ケースの片端側に隣接する円筒状ケースを第２の円筒状ケースと称する。また、第１の円筒状ケースおよび第２の円筒状ケースの中に収容された管状磁性体を、それぞれ第１の管状磁性体および第２の管状磁性体と称する。 The noise suppression member of the present invention comprises connecting at least two cylindrical cases. A tubular magnetic material is housed in each of the connected cylindrical cases. In the present specification, among a plurality of connected cylindrical cases, a certain cylindrical case is referred to as a first cylindrical case, and a cylindrical case adjacent to one end side of the first cylindrical case. It is called a second cylindrical case. Further, the tubular magnetic material housed in the first cylindrical case and the second cylindrical case are referred to as a first tubular magnetic material and a second tubular magnetic material, respectively.

第１および第２の管状磁性体は、第１および第２の円筒状ケース内にそれぞれ収容される。第１および第２の管状磁性体は、後述する円筒状ケースによって区画される中空部を取り囲むように配置される。これにより、単一のケーブルをノイズ対策部材の中空部に挿通させたときに、第１および第２の管状磁性体が、ケーブルを取り囲むように配置され、ノイズ対策部材のノイズ減衰効果が発揮される。 The first and second tubular magnetic materials are housed in the first and second cylindrical cases, respectively. The first and second tubular magnetic materials are arranged so as to surround the hollow portion partitioned by the cylindrical case described later. As a result, when a single cable is inserted into the hollow portion of the noise suppression member, the first and second tubular magnetic materials are arranged so as to surround the cable, and the noise attenuation effect of the noise suppression member is exhibited. Ru.

各管状磁性体を構成する材料は、保磁力が小さく、透磁率が大きい軟磁性材料であることが好ましい。軟磁性材料としては、例えば、Ｍｎ‐Ｚｎ系フェライト、Ｎｉ‐Ｚｎ系フェライト、Ｎｉ‐Ｚｎ‐Ｃｕ系フェライト等のフェライト；Ｆｅ‐Ｎｉ系合金（パーマロイ）、およびＦｅ−Ｓｉ系合金等の軟磁性金属；Ｃｏ基アモルファス合金、およびＦｅ基アモルファス合金等のアモルファス合金；ならびにＦｅ基ナノ結晶合金等を用いることができる。 The material constituting each tubular magnetic material is preferably a soft magnetic material having a small coercive force and a large magnetic permeability. Examples of the soft magnetic material include ferrites such as Mn-Zn-based ferrite, Ni-Zn-based ferrite, and Ni-Zn-Cu-based ferrite; soft magnetic materials such as Fe-Ni-based alloys (Permalloy) and Fe-Si-based alloys. Metals; amorphous alloys such as Co-based amorphous alloys and Fe-based amorphous alloys; and Fe-based nanocrystalline alloys and the like can be used.

各管状磁性体の径方向に直交する方向（管状磁性体の中心軸方向）の寸法は、３ｍｍ以上３０ｍｍ以下とすることが好ましい。管状磁性体の径方向に直交する方向の寸法が３ｍｍ未満であると、管状磁性体の強度が不充分で、取り扱いが困難となる。一方、管状磁性体の径方向に直交する方向の寸法が３０ｍｍを超えると、ケーブル屈曲時に、管状磁性体への負荷が大きくなる。管状磁性体の径方向に直交する方向の寸法は、より好ましくは、５ｍｍ以上である。また、管状磁性体の径方向に直交する方向の寸法は、より好ましくは、２０ｍｍ以下である。 The dimensions in the direction orthogonal to the radial direction of each tubular magnetic material (the direction of the central axis of the tubular magnetic material) are preferably 3 mm or more and 30 mm or less. If the dimension of the tubular magnetic material in the direction orthogonal to the radial direction is less than 3 mm, the strength of the tubular magnetic material is insufficient and handling becomes difficult. On the other hand, if the dimension of the tubular magnetic material in the direction orthogonal to the radial direction exceeds 30 mm, the load on the tubular magnetic material increases when the cable is bent. The dimension in the direction orthogonal to the radial direction of the tubular magnetic material is more preferably 5 mm or more. Further, the dimension of the tubular magnetic material in the direction orthogonal to the radial direction is more preferably 20 mm or less.

連結された複数の円筒状ケース中に収容される管状磁性体のうち、少なくとも１つの管状磁性体は、少なくとも１つの他の管状磁性体と、互いに種類が異なっていてもよい。例えば、第１の管状磁性体は、第２の管状磁性体と、ノイズ減衰量の帯域が互いに異なっていてもよい。このように、ノイズ減衰量の帯域が互いに異なる磁性体を、ケーブル軸方向に直列に連結することにより、ノイズ減衰量の帯域が１種類の磁性体を用いた場合と比較して、広い周波数帯域にわたって平均したノイズ減衰効果を得ることができる。 Of the tubular magnetic materials housed in the plurality of connected cylindrical cases, at least one tubular magnetic material may be of a different type from at least one other tubular magnetic material. For example, the first tubular magnetic material may have different noise attenuation bands from the second tubular magnetic material. In this way, by connecting magnetic materials having different noise attenuation bands in series in the cable axis direction, a wider frequency band is used as compared with the case where one type of magnetic material has a noise attenuation band. It is possible to obtain an average noise attenuation effect over a period of time.

第１および第２の円筒状ケースは、第１および第２の管状磁性体をそれぞれ収容するとともに、ケーブルを挿通させる中空部を区画する。 The first and second cylindrical cases accommodate the first and second tubular magnetic materials, respectively, and partition the hollow portion through which the cable is inserted.

第１の円筒状ケースの片端には、該第１の円筒状ケースを、該片端側で隣接する第２の円筒状ケースと着脱可能に連結させる第１連結部が設けられている。また、第２の円筒状ケースの片端には、該第２の円筒状ケースを、該片端側で隣接する第１の円筒状ケースと着脱可能に連結させる第２連結部が設けられている。 At one end of the first cylindrical case, a first connecting portion is provided for detachably connecting the first cylindrical case to a second cylindrical case adjacent to the first cylindrical case on the one end side. Further, at one end of the second cylindrical case, a second connecting portion for detachably connecting the second cylindrical case to the adjacent first cylindrical case on the one end side is provided.

管状磁性体が同一の磁性材料からなる場合、ノイズ対策部材によるノイズ減衰量は、円筒状ケースに収容される磁性体の径方向に直交する方向の寸法に比例する。本発明においては、隣接した円筒状ケース同士を、第１および第２連結部によって着脱可能に連結させることができるため、必要なノイズ減衰量に応じて、円筒状ケースの連結個数を容易に調節することができる。また、円筒状ケース同士の連結が着脱可能であることにより、円筒状ケースの連結個数を変化させつつノイズ減衰量を測定して、コストとノイズ減衰量とのバランスが取れた円筒状ケースの連結個数を決定することが容易となる。 When the tubular magnetic material is made of the same magnetic material, the amount of noise attenuation by the noise countermeasure member is proportional to the dimension in the direction orthogonal to the radial direction of the magnetic material housed in the cylindrical case. In the present invention, adjacent cylindrical cases can be detachably connected to each other by the first and second connecting portions, so that the number of connected cylindrical cases can be easily adjusted according to the required noise attenuation amount. can do. In addition, since the connection between the cylindrical cases is removable, the amount of noise attenuation is measured while changing the number of connected cylindrical cases, and the connection of the cylindrical cases with a good balance between cost and noise attenuation is achieved. It becomes easy to determine the number.

第１および第２連結部によって連結された第１および第２の円筒状ケース間の連結角度は、挿通されるケーブルの屈曲に応じて変化する。なお、本明細書中において、第１および第２の円筒状ケース間の連結角度とは、第１の円筒状ケースの中心軸が、第２の円筒状ケースの中心軸に対してなす角度を意味する。本発明においては、連結された第１および第２の円筒状ケース間の連結角度が、挿通されるケーブルの屈曲に応じて変化することによって、ノイズ対策部材がケーブルの屈曲に追従することができるため、ケーブル屈曲時にノイズ対策部材にかかる負荷を低減することができる。さらに、連結された第１および第２の円筒状ケース間の連結角度が、挿通されるケーブルの屈曲に応じて変化することによって、ケーブルの屈曲によって、ノイズ対策部材が取り付けた位置からずれることを防ぐことができる。 The connection angle between the first and second cylindrical cases connected by the first and second connecting portions changes according to the bending of the cable to be inserted. In the present specification, the connection angle between the first and second cylindrical cases is the angle formed by the central axis of the first cylindrical case with respect to the central axis of the second cylindrical case. means. In the present invention, the noise suppression member can follow the bending of the cable by changing the connecting angle between the connected first and second cylindrical cases according to the bending of the cable to be inserted. Therefore, it is possible to reduce the load applied to the noise suppression member when the cable is bent. Further, the connection angle between the connected first and second cylindrical cases changes according to the bending of the cable to be inserted, so that the bending of the cable deviates from the position where the noise suppression member is attached. Can be prevented.

自動車に備えられた電子部品の内部で発生し、または外部で発生して電子部品に繋がるケーブル内を伝播するノイズには、低周波数帯のノイズも含まれる。周波数が低いほどノイズ減衰量が小さくなるので、低周波数帯のノイズを減衰させるためには、径方向に直交する方向が大きい管状磁性体が必要とされるが、径方向に直交する方向が大きい管状磁性体をケーブルの屈曲に対して追従させることは難しく、かつ径方向に直交する方向が大きい管状磁性体を用いると、ノイズ減衰効果の調節が容易ではなかった。これに対し、本発明のノイズ対策部材においては、円筒状ケース同士の連結が着脱可能であり、かつ第１および第２の円筒状ケース間の連結角度がケーブルの屈曲に応じて変化することができる。よって、本発明のノイズ対策部材によれば、低周波数帯のノイズを低減することができ、かつケーブルの屈曲に対して追従でき、ノイズ減衰効果の調節が容易であるので、自動車に備えられた電子部品のノイズ対策に好適に適用することができる。 The noise generated inside the electronic component provided in the automobile or generated outside and propagating in the cable connected to the electronic component includes noise in the low frequency band. The lower the frequency, the smaller the amount of noise attenuation. Therefore, in order to attenuate noise in the low frequency band, a tubular magnetic material having a large radial direction is required, but the radial direction is large. It was difficult to make the tubular magnetic material follow the bending of the cable, and it was not easy to adjust the noise damping effect when the tubular magnetic material having a large direction orthogonal to the radial direction was used. On the other hand, in the noise suppression member of the present invention, the connection between the cylindrical cases is removable, and the connection angle between the first and second cylindrical cases changes according to the bending of the cable. it can. Therefore, according to the noise suppression member of the present invention, noise in the low frequency band can be reduced, the bending of the cable can be followed, and the noise attenuation effect can be easily adjusted. It can be suitably applied to noise suppression of electronic parts.

以下では、第１および第２の円筒状ケース間で取り得る最大の連結角度を、連結可動角度と言う。第１および第２の円筒状ケース間の連結可動角度は、３°以上４５°以下であることが好ましい。連結可動角度を３°以上とすることで、ケーブル屈曲に対して円筒状ケースが好適に追従することができ、管状磁性体にかかる負荷が小さくなる。また、連結可動角度を４５°以下とすることにより、屈曲時のケーブルに対する負荷を低減することができる。さらに、連結可動角度が４５°以下であれば、第１および第２連結部のケーブル軸方向における長さを小さくすることができるため、ノイズ対策部材の全長をより自由に設計することができる。第１および第２の円筒状ケース間の連結可動角度は、より好ましくは、５°以上である。また、第１および第２の円筒状ケース間の連結可動角度は、より好ましくは、３０°以下である。 Hereinafter, the maximum connection angle that can be taken between the first and second cylindrical cases is referred to as a connection movable angle. The connection movable angle between the first and second cylindrical cases is preferably 3 ° or more and 45 ° or less. By setting the connection movable angle to 3 ° or more, the cylindrical case can suitably follow the bending of the cable, and the load applied to the tubular magnetic material is reduced. Further, by setting the connecting movable angle to 45 ° or less, the load on the cable at the time of bending can be reduced. Further, when the connection movable angle is 45 ° or less, the lengths of the first and second connection portions in the cable axis direction can be reduced, so that the total length of the noise suppression member can be designed more freely. The connection movable angle between the first and second cylindrical cases is more preferably 5 ° or more. Further, the connection movable angle between the first and second cylindrical cases is more preferably 30 ° or less.

第１および第２の円筒状ケースは、一つの部材から構成されていてもよいが、円筒を中心軸方向に沿って複数に分割した形状のサブケースを、ヒンジ部で開閉可能に連結して構成されていてもよい。また、第１および第２の円筒状ケースを構成する該サブケースには、複数に分割された第１および第２の管状磁性体が１つずつ収容され得る。以下、説明の便宜上、このような円筒状ケースおよび磁性体を、「分割タイプ」の円筒状ケースとも称する。このような「分割タイプ」の円筒状ケースおよび磁性体については、後ほど実施形態３の説明において詳述する。後述する実施形態１，２，４においては、円筒状ケースを一つの部材から構成することもできるし、分割タイプとすることもできる。 The first and second cylindrical cases may be composed of one member, but sub-cases having a shape in which the cylinder is divided into a plurality of parts along the central axis direction are connected by a hinge portion so as to be openable and closable. It may be configured. In addition, the sub-cases constituting the first and second cylindrical cases may contain one first and one second tubular magnetic material divided into a plurality of parts. Hereinafter, for convenience of explanation, such a cylindrical case and a magnetic material will also be referred to as a "divided type" cylindrical case. Such a "divided type" cylindrical case and magnetic material will be described in detail later in the description of the third embodiment. In the first, second, and fourth embodiments described later, the cylindrical case may be composed of one member, or may be a split type.

第１および第２の円筒状ケースならびに第１および第２連結部を構成する材料は特に限定されず、熱可塑性プラスチック、例えば、ポリプロピレン（ＰＰ）、ポリエチレンテレフタレート（ＰＥＴ）、ポリブチレンテレフタレート（ＰＢＴ）、ポリアミド（ＰＡ）、ポリフェニレンサルファイド（ＰＰＳ）や；シリコーン樹脂、シリコーン系エラストマー等を用いることができる。また、前記熱可塑性プラスチックに、グラスファイバー（ＧＦ）、カーボンファイバー（ＣＦ）、グラファイト（ＧＰ）等を含有させて強度や耐熱性を向上した材料を用いることもできる。第１および第２の円筒状ケースならびに第１および第２連結部が上述した材料から構成されれば、強度および耐熱性に優れる。なお、円筒状ケースと、第１および第２連結部とは、互いに異なる材料によって構成してもよい。 The materials constituting the first and second cylindrical cases and the first and second connecting portions are not particularly limited, and thermoplastics such as polypropylene (PP), polyethylene terephthalate (PET), and polybutylene terephthalate (PBT) are used. , Polyamide (PA), polyphenylene terephthale (PPS), silicone resin, silicone-based elastomer, and the like can be used. Further, it is also possible to use a material having improved strength and heat resistance by containing glass fiber (GF), carbon fiber (CF), graphite (GP) or the like in the thermoplastic plastic. If the first and second cylindrical cases and the first and second connecting portions are made of the above-mentioned materials, the strength and heat resistance are excellent. The cylindrical case and the first and second connecting portions may be made of different materials.

以下では、図面を参照して、本発明の各実施形態について説明する。なお、本発明は、以下の実施形態に限定されない。 Hereinafter, each embodiment of the present invention will be described with reference to the drawings. The present invention is not limited to the following embodiments.

［実施形態１］
本発明の実施形態１に係るノイズ対策部材は、
前記第１連結部は、前記ケーブルを挿通可能な（ケーブルの外径よりも大きい）内径を有する円筒状で、前記第１の円筒状ケースの中心軸を取り囲むように筒壁が設けられ、該筒壁には前記第１の円筒状ケースの中心軸方向に沿って延在する少なくとも一つのスリットが設けられ、先端部の外周部に返しを有し、
前記第２連結部は、前記ケーブルを挿通可能な内径を有するテーパー円筒状であり、前記第２の円筒状ケースの円筒の先端外周部に連設した筒壁を備え、前記第２の円筒状ケースの片端から離れるに従って筒壁の内径が漸減し、先端部が前記返しと遊嵌可能な内径を有する、ノイズ対策部材である。 [Embodiment 1]
The noise suppression member according to the first embodiment of the present invention is
The first connecting portion has a cylindrical shape having an inner diameter through which the cable can be inserted (larger than the outer diameter of the cable), and a cylindrical wall is provided so as to surround the central axis of the first cylindrical case. The tubular wall is provided with at least one slit extending along the central axis direction of the first cylindrical case, and has a barb on the outer peripheral portion of the tip portion.
The second connecting portion has a tapered cylindrical shape having an inner diameter through which the cable can be inserted, and includes a cylindrical wall connected to the outer peripheral portion of the tip of the cylinder of the second cylindrical case, and the second cylindrical shape. It is a noise countermeasure member in which the inner diameter of the cylinder wall gradually decreases as the distance from one end of the case increases, and the tip portion has an inner diameter that allows play with the barb.

図１に、本発明の実施形態１に係るノイズ対策部材１ａの斜視図を示す。なお、図１においては、説明のために、第１の円筒状ケース１０ａを半分取りさらって、第１の円筒状ケース１０ａの内部の形態を示している。図１に示すように、ノイズ対策部材１ａは、ケーブル２に挿通させて用いられ、複数の円筒状ケース１０ａを、ケーブル２の長手方向に沿って連結させてなる。各円筒状ケース１０ａの内部には、それぞれ、管状磁性体２０が、単一のケーブル２を挿通させるように中空部に沿って収容されている。第１の円筒状ケース１０ａおよび第２の円筒状ケース１０'ａは、第１の円筒状ケース１０ａの片端側に設けられた第１連結部１２１ａが、第２の円筒状ケース１０'ａの片端側に設けられた第２連結部１２２'ａに対して押し込まれて遊嵌することによって連結される。また、第１の円筒状ケース１０ａおよび第２の円筒状ケース１０'ａの間の連結は、第１連結部１２１ａを第２連結部１２２'ａから引き抜くことによって脱着することができる。なお、円筒状ケース１０ａの連結個数は、必要なノイズ減衰量に応じて決定され、特に限定されない。 FIG. 1 shows a perspective view of the noise suppression member 1a according to the first embodiment of the present invention. In FIG. 1, for the sake of explanation, half of the first cylindrical case 10a is removed to show the internal shape of the first cylindrical case 10a. As shown in FIG. 1, the noise suppression member 1a is used by being inserted into the cable 2, and a plurality of cylindrical cases 10a are connected along the longitudinal direction of the cable 2. Inside each cylindrical case 10a, a tubular magnetic body 20 is housed along a hollow portion so as to allow a single cable 2 to be inserted. In the first cylindrical case 10a and the second cylindrical case 10'a, the first connecting portion 121a provided on one end side of the first cylindrical case 10a is a second cylindrical case 10'a. It is connected by being pushed into the second connecting portion 122'a provided on one end side and loosely fitting. Further, the connection between the first cylindrical case 10a and the second cylindrical case 10'a can be detached by pulling out the first connecting portion 121a from the second connecting portion 122'a. The number of connected cylindrical cases 10a is determined according to the required noise attenuation amount, and is not particularly limited.

図２に、実施形態１に係る円筒状ケース１０ａの一例を示す。図２（Ａ）は、円筒状ケース１０ａの斜視図であり、（Ｂ）は円筒状ケース１０ａを第１連結部１２１ａが設けられている側から見た図であり、（Ｃ）は円筒状ケース１０ａを円筒２４ａを正面として見た図であり、（Ｄ）は円筒状ケース１０ａを第２連結部１２２ａが設けられている側から見た図であり、（Ｅ）は円筒状ケース１０ａを図２（Ｃ）に示す切断位置Ａ−Ａにて切断した断面図である。 FIG. 2 shows an example of the cylindrical case 10a according to the first embodiment. FIG. 2A is a perspective view of the cylindrical case 10a, FIG. 2B is a view of the cylindrical case 10a from the side where the first connecting portion 121a is provided, and FIG. 2C is a cylindrical case. The case 10a is a view of the case 10a with the cylinder 24a as the front, (D) is a view of the cylindrical case 10a from the side where the second connecting portion 122a is provided, and (E) is a view of the cylindrical case 10a. It is sectional drawing which cut at the cutting position AA shown in FIG. 2C.

図２に示すように、個々の円筒状ケース１０ａは、中心軸方向に沿ってケーブル２を挿通させる中空部２３ａを区画する。円筒状ケース１０ａは、管状磁性体２０を該中空部２３ａに沿って収容する収容部１９ａを備える。収容部１９ａの円筒状ケース１０ａの片端側、および他端側には、円筒外周部から径方向内側に向かって延在し、中空部２３ａと連続した開口部１１ａを区画する第１の円板部２１ａおよび第２の円板部２１'ａがそれぞれ設けられている。該第１の円板部２１ａおよび第２の円板部２１'ａにより、管状磁性体２０が収容部１９ａ内に固定される。円筒状ケース１０ａは、片端側に第１連結部１２１ａを備え、他端側に第２連結部１２２ａを備える。 As shown in FIG. 2, each cylindrical case 10a partitions a hollow portion 23a through which the cable 2 is inserted along the central axis direction. The cylindrical case 10a includes an accommodating portion 19a for accommodating the tubular magnetic body 20 along the hollow portion 23a. A first disk extending radially inward from the outer peripheral portion of the cylinder to partition the opening 11a continuous with the hollow portion 23a on one end side and the other end side of the cylindrical case 10a of the accommodating portion 19a. A portion 21a and a second disc portion 21'a are provided, respectively. The tubular magnetic body 20 is fixed in the accommodating portion 19a by the first disc portion 21a and the second disc portion 21'a. The cylindrical case 10a includes a first connecting portion 121a on one end side and a second connecting portion 122a on the other end side.

収容部１９ａ内部の中心軸方向における長さは、内部に収容される管状磁性体２０の径方向に直交する方向の寸法に応じて決定され得、例えば３ｍｍ以上３０ｍｍ以下である。 The length of the inside of the housing portion 19a in the central axis direction can be determined according to the dimension in the direction orthogonal to the radial direction of the tubular magnetic body 20 housed inside, and is, for example, 3 mm or more and 30 mm or less.

第１の円板部２１ａおよび第２の円板部２１'ａは、ケーブル２を挿通可能な開口部１１ａを区画する。好ましくは、第１の円板部２１ａおよび第２の円板部２１'ａは、ケーブル２を挿通可能で、かつ管状磁性体２０の両端部を被覆可能な開口部１１ａを区画する。第１の円板部２１ａおよび第２の円板部２１'ａがそれぞれ管状磁性体２０の片端部および他端部を被覆することで、管状磁性体の破損を好適に防ぐことができる。 The first disk portion 21a and the second disk portion 21'a partition an opening 11a through which the cable 2 can be inserted. Preferably, the first disc portion 21a and the second disc portion 21'a partition an opening 11a through which the cable 2 can be inserted and which can cover both ends of the tubular magnetic body 20. By covering one end and the other end of the tubular magnetic body 20 with the first disk portion 21a and the second disk portion 21'a, respectively, damage to the tubular magnetic body can be suitably prevented.

第１連結部１２１ａは、ケーブル２を挿通可能な内径を有する円筒状であり、第１の円筒状ケース１０ａの中心軸を取り囲むように筒壁１５ａが設けられている。図１の例においては、筒壁１５ａは、斜面部２２ａを介して第１の円筒状ケース１０ａの円筒２４ａの先端外周部に連結する。また、図１の例においては、筒壁１５ａの内径は増減せず一定である。 The first connecting portion 121a has a cylindrical shape having an inner diameter through which the cable 2 can be inserted, and a cylindrical wall 15a is provided so as to surround the central axis of the first cylindrical case 10a. In the example of FIG. 1, the cylinder wall 15a is connected to the outer peripheral portion of the tip of the cylinder 24a of the first cylindrical case 10a via the slope portion 22a. Further, in the example of FIG. 1, the inner diameter of the cylinder wall 15a does not increase or decrease and is constant.

第１連結部１２１ａの筒壁１５ａには、第１の円筒状ケース１０ａの中心軸方向に沿って延在するスリット１３ａが少なくとも１つ設けられている。第１連結部１２１ａがスリット１３ａを有することにより、第１連結部１２１ａが第２連結部１２２ａの内部に押し込まれる際、およびに第１連結部１２１ａが第２連結部１２２ａの内部から引き抜かれる際に、第１連結部１２１ａの先端部の外径Ｒ２が小さくなるよう変形する。この押し込みおよび引き抜きによって、第１の円筒状ケースおよび第２の円筒状ケースの着脱を容易に行うことができる。これにより、円筒状ケース１０ａを着脱して、所望のノイズ減衰量に応じて円筒状ケース１０ａの連結個数を容易に変更することができる。さらに、第１連結部１２１ａにスリット１３ａが設けられていることにより、ケーブル２の屈曲時に、第１連結部１２１ａがスリット１３ａを介して変形して、ケーブル２に追従するように屈曲することが容易となる。なお、図１および２においては、スリット１３ａが一つの円筒状ケース１０ａに対して等間隔に６つ設けられている例を示したが、スリット１３ａを設ける間隔および数は、これに限定されない。図１および２の例においては、スリット１３ａは、筒壁１５ａと斜面部２２ａとの連結位置まで延在しているが、スリット１３ａの長さは、第１連結部１２１ａおよび第２連結部１２２ａの間の着脱が容易にできるように定めればよい。 The tubular wall 15a of the first connecting portion 121a is provided with at least one slit 13a extending along the central axis direction of the first cylindrical case 10a. When the first connecting portion 121a has the slit 13a, the first connecting portion 121a is pushed into the inside of the second connecting portion 122a, and the first connecting portion 121a is pulled out from the inside of the second connecting portion 122a. In addition, the outer diameter R2 of the tip of the first connecting portion 121a is deformed to be smaller. By this pushing and pulling out, the first cylindrical case and the second cylindrical case can be easily attached and detached. Thereby, the cylindrical case 10a can be attached and detached, and the number of connected cylindrical cases 10a can be easily changed according to a desired noise attenuation amount. Further, since the first connecting portion 121a is provided with the slit 13a, when the cable 2 is bent, the first connecting portion 121a is deformed through the slit 13a and bent so as to follow the cable 2. It will be easy. Although FIGS. 1 and 2 show an example in which six slits 13a are provided at equal intervals with respect to one cylindrical case 10a, the intervals and the number of slits 13a provided are not limited thereto. In the examples of FIGS. 1 and 2, the slit 13a extends to the connecting position between the tubular wall 15a and the slope portion 22a, but the length of the slit 13a is the first connecting portion 121a and the second connecting portion 122a. It may be determined so that it can be easily attached and detached between the slits.

第１連結部１２１ａは、筒壁の先端部の外周部に返し１４ａを有する。第１連結部１２１ａは、スリット１３ａによって外径が小さくなるように変形し、第２連結部１２２ａの内部に押し込まれた後、第２連結部１２２ａの内部で元の外径に戻る。これにより、返し１４ａが第２連結部１２２ａの先端部と遊嵌する。なお、図１および２においては、返し１４ａが外周部の全周にわたって設けられている例を示したが、返し１４ａを設ける範囲はこれに限定されない。返し１４ａは、例えば筒壁の先端部の外周部の一部分のみに設けられていてもよい。 The first connecting portion 121a has a return 14a on the outer peripheral portion of the tip end portion of the cylinder wall. The first connecting portion 121a is deformed by the slit 13a so that the outer diameter becomes smaller, is pushed into the inside of the second connecting portion 122a, and then returns to the original outer diameter inside the second connecting portion 122a. As a result, the return 14a is loosely fitted with the tip end portion of the second connecting portion 122a. Although FIGS. 1 and 2 show an example in which the return 14a is provided over the entire circumference of the outer peripheral portion, the range in which the return 14a is provided is not limited to this. The return 14a may be provided only on a part of the outer peripheral portion of the tip end portion of the cylinder wall, for example.

第２連結部１２２ａは、ケーブル２を挿通可能な内径を有するテーパー円筒状であり、円筒状ケース１０ａの円筒２４ａの先端外周部に連設した筒壁を備える。第２連結部１２２ａの筒壁の内径は、円筒状ケース１０ａの他端から離れるに従って漸減し、該筒壁の先端部が、隣接する円筒状ケース１０ａが備える第１連結部１２１ａの返し１４ａと遊嵌可能な内径Ｒ３を有する。なお、ここで、「第２連結部１２２ａの筒壁の先端部が、返し１４ａと遊嵌可能な内径を有する」とは、第２連結部１２２ａの筒壁１５'ａの先端部の内径Ｒ３が、第１連結部１２１ａの筒壁１５ａの外径Ｒ１よりも大きく、返し１４ａの外径Ｒ２よりも小さいことを意味する。 The second connecting portion 122a has a tapered cylindrical shape having an inner diameter through which the cable 2 can be inserted, and includes a cylindrical wall connected to the outer peripheral portion of the tip of the cylinder 24a of the cylindrical case 10a. The inner diameter of the cylindrical wall of the second connecting portion 122a gradually decreases as the distance from the other end of the cylindrical case 10a increases, and the tip portion of the cylindrical wall gradually decreases with the return 14a of the first connecting portion 121a provided in the adjacent cylindrical case 10a. It has an inner diameter R3 that can be loosely fitted. Here, "the tip of the cylinder wall of the second connecting portion 122a has an inner diameter that can be loosely fitted with the return 14a" means that the inner diameter R3 of the tip of the cylinder wall 15'a of the second connecting portion 122a Means that it is larger than the outer diameter R1 of the cylinder wall 15a of the first connecting portion 121a and smaller than the outer diameter R2 of the return 14a.

本実施形態においては、上述したように、第２連結部１２２ａが、円筒状ケース１０ａの片端側から離れるに従って内径が漸減したテーパー筒状となっているため、第２連結部１２２ａの内部に挿入されて係合した第１連結部１２１ａが、第２連結部１２２ａのテーパー角に沿って第２連結部１２２ａの内部で傾くことができる。これにより第１の円筒状ケース１０ａに対する第２の円筒状ケース１０'ａの連結角度が変化する。第１連結部１２１ａおよび第２連結部１２２ａの構造上、本実施形態においては、第１の円筒状ケース１０ａに対する第２の円筒状ケース１０'ａの連結角度は、全方向に変化することができる。よって、ノイズ対策部材１ａが、ケーブル２のあらゆる方向への屈曲に追従することができる。 In the present embodiment, as described above, since the second connecting portion 122a has a tapered tubular shape whose inner diameter gradually decreases as the distance from one end side of the cylindrical case 10a increases, the second connecting portion 122a is inserted inside the second connecting portion 122a. The first connecting portion 121a that has been engaged with the second connecting portion 121a can be tilted inside the second connecting portion 122a along the taper angle of the second connecting portion 122a. As a result, the connection angle of the second cylindrical case 10'a with respect to the first cylindrical case 10a changes. Due to the structure of the first connecting portion 121a and the second connecting portion 122a, in the present embodiment, the connecting angle of the second cylindrical case 10'a with respect to the first cylindrical case 10a may change in all directions. it can. Therefore, the noise suppression member 1a can follow the bending of the cable 2 in all directions.

本実施形態においては、円筒状ケース１０ａを開閉せずに、第１および第２の円筒状ケース１０ａ、１０'ａを着脱することが可能である。よって、円筒状ケース１０ａおよび管状磁性体２０を「分割タイプ」とする必要がない。したがって、管状磁性体２０を分割タイプとせずに構成することによって、高いノイズ減衰効果を得ることができる。 In the present embodiment, the first and second cylindrical cases 10a and 10'a can be attached and detached without opening and closing the cylindrical case 10a. Therefore, it is not necessary to make the cylindrical case 10a and the tubular magnetic material 20 a "divided type". Therefore, a high noise attenuation effect can be obtained by constructing the tubular magnetic material 20 without making it a split type.

なお、本実施形態においては、ノイズ対策部材１ａがケーブル２の全面を覆うことで、ケーブル２の保護機能も兼ね得る。 In the present embodiment, the noise suppression member 1a covers the entire surface of the cable 2, so that the cable 2 can also have a protective function.

なお、図１および２においては、一つの円筒状ケース１０ａに第１連結部１２１ａおよび第２連結部１２２ａが設けられている形態を示したが、本実施形態はこれに限定されない。例えば、第１の円筒状ケース１０ａの両端に第１連結部１２１ａが設けられており、第２の円筒状ケースの両端に第２連結部１２２ａが設けられていてもよい。この場合、第１連結部のみを有する第１の円筒状ケースと第２連結部のみを有する第２の円筒状ケースとを交互に連結させることで、ノイズ対策部材１ａを構成することができる。ノイズ対策部材１ａの組み立てを容易にするためには、図１および２に示すように、一つの円筒状ケース１０ａに、第１連結部１２１ａおよび第２連結部１２２ａを設けることが好ましい。これにより、１種類の円筒状ケース１０ａによってノイズ対策部材１ａを構成することができる。 Although FIGS. 1 and 2 show a form in which the first connecting portion 121a and the second connecting portion 122a are provided in one cylindrical case 10a, the present embodiment is not limited to this. For example, first connecting portions 121a may be provided at both ends of the first cylindrical case 10a, and second connecting portions 122a may be provided at both ends of the second cylindrical case. In this case, the noise countermeasure member 1a can be configured by alternately connecting the first cylindrical case having only the first connecting portion and the second cylindrical case having only the second connecting portion. In order to facilitate the assembly of the noise suppression member 1a, it is preferable to provide the first connecting portion 121a and the second connecting portion 122a in one cylindrical case 10a as shown in FIGS. 1 and 2. As a result, the noise suppression member 1a can be configured by one type of cylindrical case 10a.

［実施形態２］
次に本発明の実施形態２について説明する。本発明の実施形態２に係るノイズ対策部材は、
前記第１および第２の円筒状ケースの片端側には、円筒の先端外周部から径方向内側に向かって延在し、前記中空部と連続した第１および第２の開口部を区画する第１および第２の円板部がそれぞれ設けられており、
前記第１連結部は、前記第１の円板部上に設けられ、曲面を有するスタッド部を含み、
前記第２連結部は、前記第２の円板部上に設けられ、前記スタッド部を可動に嵌合するソケット部を含む、ノイズ対策部材である。 [Embodiment 2]
Next, Embodiment 2 of the present invention will be described. The noise countermeasure member according to the second embodiment of the present invention is
A second opening extending radially inward from the outer peripheral portion of the tip of the cylinder to partition the first and second openings continuous with the hollow portion on one end side of the first and second cylindrical cases. The first and second discs are provided, respectively.
The first connecting portion includes a stud portion provided on the first disk portion and having a curved surface.
The second connecting portion is a noise countermeasure member provided on the second disk portion and includes a socket portion for movably fitting the stud portion.

図３に、本発明の実施形態１に係るノイズ対策部材１ｂの斜視図を示す。図３に示すように、ノイズ対策部材１ｂは、複数の円筒状ケース１０ｂを、ケーブル２の長手方向に沿って連結させてなる。なお、本図においては、ケーブル２の図示を省略している。各円筒状ケース１０ｂの内部には、それぞれ、管状磁性体２０が、単一のケーブル２を挿通させるように中空部２３ｂに沿って収容されている。第１の円筒状ケース１０ｂおよび第２の円筒状ケース１０'ｂは、第１の円筒状ケース１０ｂの片端側に設けられた第１連結部１２１ｂと第２の円筒状ケース１０'ｂの片端側に設けられた第２連結部１２２'ｂとが嵌合することによって着脱可能に連結される。 FIG. 3 shows a perspective view of the noise suppression member 1b according to the first embodiment of the present invention. As shown in FIG. 3, the noise suppression member 1b is formed by connecting a plurality of cylindrical cases 10b along the longitudinal direction of the cable 2. In this figure, the cable 2 is not shown. Inside each cylindrical case 10b, a tubular magnetic body 20 is housed along a hollow portion 23b so as to allow a single cable 2 to pass through. The first cylindrical case 10b and the second cylindrical case 10'b are one end of a first connecting portion 121b and a second cylindrical case 10'b provided on one end side of the first cylindrical case 10b. It is detachably connected by fitting with the second connecting portion 122'b provided on the side.

図４に、本発明の実施形態２に係る円筒状ケースの形態を示す。図４（Ａ）は、円筒状ケース１０ｂの斜視図であり、（Ｂ）は円筒状ケース１０ｂを第１連結部１２１ｂが設けられている側から見た図であり、（Ｃ）は円筒状ケース１０ｂを円筒２４ｂを正面とし、かつ第１連結部１２１ｂ同士、および第２連結部同士が重なり合う方向から見た図であり、（Ｄ）は円筒状ケース１０ｂを円筒２４ｂを正面とし、かつ第１連結部１２１ｂ同士、および第２連結部同士がいずれも重なり合わない方向から見た図である。 FIG. 4 shows the form of the cylindrical case according to the second embodiment of the present invention. FIG. 4A is a perspective view of the cylindrical case 10b, FIG. 4B is a view of the cylindrical case 10b from the side where the first connecting portion 121b is provided, and FIG. 4C is a cylindrical case. The case 10b is viewed from the direction in which the cylinder 24b is the front surface and the first connecting portions 121b are overlapped with each other and the second connecting portions are overlapped with each other. It is a figure seen from the direction which neither 1 connecting part 121b and 2nd connecting part overlap each other.

実施形態１と同様、個々の円筒状ケース１０ｂは、中心軸方向に沿ってケーブル２を挿通させる中空部２３ｂを区画する。円筒状ケース１０ｂは、管状磁性体２０を該中空部２３ｂに沿って収容する収容部１９ｂを備える。収容部１９ｂの円筒状ケース１０ｂの片端側、および他端側には、円筒外周部から径方向内側に向かって延在し、中空部と連続した開口部１１ｂを区画する第１の円板部２１ｂおよび第２の円板部２１'ｂがそれぞれ設けられている。円筒状ケース１０ｂは、片端側に第１連結部１２１ｂを備え、他端側に第２連結部１２２ｂを備える。 Similar to the first embodiment, each cylindrical case 10b partitions a hollow portion 23b through which the cable 2 is inserted along the central axis direction. The cylindrical case 10b includes an accommodating portion 19b that accommodates the tubular magnetic body 20 along the hollow portion 23b. A first disk portion extending radially inward from the outer peripheral portion of the cylinder to partition an opening 11b continuous with the hollow portion on one end side and the other end side of the cylindrical case 10b of the accommodating portion 19b. A 21b and a second disk portion 21'b are provided, respectively. The cylindrical case 10b includes a first connecting portion 121b on one end side and a second connecting portion 122b on the other end side.

収容部１９ｂ、第１の円板部２１ｂ、および第２の円板部２１'ｂの形態は、上述した実施形態１の収容部１９ａ、第１の円板部２１ａ、および第２の円板部２１'ａと同様であるから、ここでは説明を繰り返さない。 The form of the accommodating portion 19b, the first disc portion 21b, and the second disc portion 21'b is the accommodating portion 19a, the first disc portion 21a, and the second disk of the first embodiment described above. Since it is the same as the part 21'a, the description is not repeated here.

第１連結部１２１ｂは、第１の円板部２１ｂ上に設けられている。第１連結部１２１ｂは、曲面を有するスタッド部１６を含む。図３および４の例においては、スタッド部１６は球体であり、円筒状ケース１０ｂの中心軸方向に沿って起立した棒部１８を介して、第１の円板部２１ｂ上に固定されている。 The first connecting portion 121b is provided on the first disc portion 21b. The first connecting portion 121b includes a stud portion 16 having a curved surface. In the examples of FIGS. 3 and 4, the stud portion 16 is a sphere and is fixed on the first disk portion 21b via a rod portion 18 that stands up along the central axis direction of the cylindrical case 10b. ..

連結を安定させる観点から、第１連結部１２１ｂは、スタッド部１６に加えて、もう一つのスタッド部１６またはソケット部１７を、第１の円板部２１ｂ上に備えることが好ましい。図３および４の例においては、第１連結部１２１ｂは、上述したスタッド部１６に加えて、第１の円板部２１ｂの周方向において該スタッド部１６と離間して設けられた、ソケット部１７を有する。ソケット部１７は、凹部２６ｂがスタッド部１６の球体と球面接触して、後述する第２連結部１２２ｂが備えるスタッド部１６を可動に嵌合する。なお、ソケット部１７の形態については、第２連結部１２２ｂの説明において詳述する。第１連結部１２１ｂが備えるスタッド部１６とソケット部１７との第１の円板部２１ｂの周方向における離間角度は、特に限定されないが、好ましくは図３に示すように１８０°である。スタッド部１６およびソケット部１７の第１の円板部２１ｂの周方向における離間角度が１８０°であることにより、第１および第２の円筒状ケース１０ｂ間の連結可動角度を大きくすることができる。 From the viewpoint of stabilizing the connection, it is preferable that the first connecting portion 121b is provided with another stud portion 16 or a socket portion 17 on the first disk portion 21b in addition to the stud portion 16. In the examples of FIGS. 3 and 4, the first connecting portion 121b is a socket portion provided apart from the stud portion 16 in the circumferential direction of the first disk portion 21b in addition to the stud portion 16 described above. Has 17. In the socket portion 17, the recess 26b comes into spherical contact with the sphere of the stud portion 16 to movably fit the stud portion 16 included in the second connecting portion 122b, which will be described later. The form of the socket portion 17 will be described in detail in the description of the second connecting portion 122b. The separation angle between the stud portion 16 and the socket portion 17 included in the first connecting portion 121b in the circumferential direction of the first disk portion 21b is not particularly limited, but is preferably 180 ° as shown in FIG. Since the separation angle of the stud portion 16 and the socket portion 17 in the circumferential direction of the first disk portion 21b is 180 °, the connection movable angle between the first and second cylindrical cases 10b can be increased. ..

第１連結部１２１ｂを構成するスタッド部１６およびソケット部１７の大きさは特に限定されないが、ケーブル２のノイズ対策部材１ｂへの挿通を妨げないよう、図４（Ｂ）に示すように円筒状ケース１０ｂを第１連結部１２１ｂが設けられている側から見た場合に、スタッド部１６およびソケット部１７が第１の円板部２１ｂの内周部よりも内側にはみ出さない大きさとすることが好ましい。また、円筒状ケース１０ｂをコンパクトにするために、図４（Ｂ）に示すように円筒状ケース１０ｂを第１連結部１２１ｂが設けられている側から見た場合に、スタッド部１６およびソケット部１７が第１の円板部２１ｂの外周部よりも外側にはみ出さない大きさとすることが好ましい。 The sizes of the stud portion 16 and the socket portion 17 constituting the first connecting portion 121b are not particularly limited, but are cylindrical as shown in FIG. 4B so as not to prevent the cable 2 from being inserted into the noise suppression member 1b. When the case 10b is viewed from the side where the first connecting portion 121b is provided, the stud portion 16 and the socket portion 17 shall have a size that does not protrude inward from the inner peripheral portion of the first disc portion 21b. Is preferable. Further, in order to make the cylindrical case 10b compact, as shown in FIG. 4B, when the cylindrical case 10b is viewed from the side where the first connecting portion 121b is provided, the stud portion 16 and the socket portion It is preferable that 17 has a size that does not protrude outward from the outer peripheral portion of the first disc portion 21b.

第１連結部１２１ｂを構成するスタッド部１６、およびソケット部１７の円筒状ケース１０ｂの中心軸方向における位置は、第１連結部１２１ｂのスタッド部１６、およびソケット部１７を、後述する第２連結部１２２ｂのソケット部１７およびスタッド部１６とそれぞれ連結させたときに、第１連結部および第２連結部がそれぞれ備えるスタッド部１６の球体が、円筒状ケースの１０ｂ中心軸方向における同一の位置で回動するように設けられていることが好ましい。 The positions of the stud portion 16 and the socket portion 17 constituting the first connecting portion 121b in the central axis direction are such that the stud portion 16 and the socket portion 17 of the first connecting portion 121b are connected to the second connecting portion 17, which will be described later. When connected to the socket portion 17 and the stud portion 16 of the portion 122b, respectively, the spheres of the stud portion 16 provided by the first connecting portion and the second connecting portion are at the same position in the central axis direction of 10b of the cylindrical case. It is preferable that it is provided so as to rotate.

第２連結部１２２ｂは、第２の円板部２１'ｂ上に設けられている。第２連結部１２２ｂは、第１連結部１２１ｂのスタッド部１６を可動に嵌合する円筒状のソケット部１７を含む。図３および４の例においては、ソケット部１７は、上述したスタッド部１６の球体と球面接触する凹部２６'ｂを有し、該凹部に第１連結部１２１ｂのスタッド部１６が嵌合される。図４（Ｄ）に示すように、凹部２６'ｂは、スタッド部１６の球体と球面接触することができるよう、凹球面となっている。ソケット部１７は、筒壁にＵ字状の切り欠きを２つ有する。ソケット部１７が筒壁に切り欠きを有することにより、スタッド部１６がソケット部１７に押し込まれる際、およびスタッド部１６がソケット部１７から引き抜かれる際に、ソケット部１７の内径が大きくなるよう変形する。よって、押し込みおよび引き抜きによって、第１の円筒状ケースおよび第２の円筒状ケースの着脱を容易に行うことができる。 The second connecting portion 122b is provided on the second disc portion 21'b. The second connecting portion 122b includes a cylindrical socket portion 17 that movably fits the stud portion 16 of the first connecting portion 121b. In the examples of FIGS. 3 and 4, the socket portion 17 has a recess 26'b that makes spherical contact with the sphere of the stud portion 16 described above, and the stud portion 16 of the first connecting portion 121b is fitted into the recess. .. As shown in FIG. 4D, the recess 26'b is a concave spherical surface so that it can make spherical contact with the sphere of the stud portion 16. The socket portion 17 has two U-shaped notches on the cylinder wall. Since the socket portion 17 has a notch in the cylinder wall, it is deformed so that the inner diameter of the socket portion 17 becomes large when the stud portion 16 is pushed into the socket portion 17 and when the stud portion 16 is pulled out from the socket portion 17. To do. Therefore, the first cylindrical case and the second cylindrical case can be easily attached and detached by pushing and pulling out.

第１連結部１２１ｂがスタッド部１６に加えて、もう一つのスタッド部１６またはソケット部１７を備える場合、第２連結部１２２ｂは、ソケット部１７に加えて、スタッド部１６またはもう一つのソケット部１７を、第２の円板部２１ｂ上に備えることが好ましい。図３および４の例においては、第２連結部１２２ｂは、上述したソケット部１７に加えて、第２の円板部２１'ｂの周方向において該ソケット部１７と離間して設けられた、スタッド部１６を有する。スタッド部１６の形態については、第１連結部１２１ｂにおいて説明したため、ここでは説明を省略する。第２連結部１２２ｂが備えるスタッド部１６とソケット部１７との第２の円板部２１'ｂの周方向における離間角度は、特に限定されないが、スタッド部１６およびソケット部１７が、隣接した第１連結部１２１ｂのソケット部１７およびスタッド部１６とそれぞれ嵌合することができるよう、隣接した第１連結部１２１ｂが備えるスタッド部１６とソケット部１７との第１の円板部２１ｂの周方向における離間角度と対応させて設定される必要がある。図３および４の例においては、第２連結部１２２ｂが備えるスタッド部１６とソケット部１７との第２の円板部２１'ｂの周方向における離間角度は、第１連結部１２１ｂが備えるスタッド部１６とソケット部１７と同様、１８０°である。 When the first connecting portion 121b includes another stud portion 16 or a socket portion 17 in addition to the stud portion 16, the second connecting portion 122b has the stud portion 16 or another socket portion in addition to the socket portion 17. 17 is preferably provided on the second disk portion 21b. In the examples of FIGS. 3 and 4, the second connecting portion 122b is provided apart from the socket portion 17 in the circumferential direction of the second disk portion 21'b in addition to the socket portion 17 described above. It has a stud portion 16. Since the form of the stud portion 16 has been described in the first connecting portion 121b, the description thereof will be omitted here. The angle of separation of the second disk portion 21'b between the stud portion 16 and the socket portion 17 included in the second connecting portion 122b in the circumferential direction is not particularly limited, but the stud portion 16 and the socket portion 17 are adjacent to each other. Circumferential direction of the first disk portion 21b between the stud portion 16 and the socket portion 17 provided by the adjacent first connecting portion 121b so that the socket portion 17 and the stud portion 16 of the 1 connecting portion 121b can be fitted to each other. It is necessary to set it in correspondence with the separation angle in. In the examples of FIGS. 3 and 4, the separation angle between the stud portion 16 provided by the second connecting portion 122b and the socket portion 17 in the circumferential direction of the second disk portion 21'b is determined by the stud provided by the first connecting portion 121b. Like the portion 16 and the socket portion 17, the temperature is 180 °.

本実施形態においては、ソケット部１７がスタッド部１６を保持しつつ、スタッド部１６が曲面を有することによってソケット部１７の内部で回動することができる。これにより、第１および第２の円筒状ケース１０ｂ、１０'ｂ間の連結角度が変化するため、ノイズ対策部材１ｂが、ケーブル２の屈曲に追従することができる。 In the present embodiment, the socket portion 17 holds the stud portion 16, and the stud portion 16 has a curved surface so that the socket portion 17 can rotate inside the socket portion 17. As a result, the connection angle between the first and second cylindrical cases 10b and 10'b changes, so that the noise suppression member 1b can follow the bending of the cable 2.

第１および第２の円筒状ケース１０ｂ、１０'ｂ間の脱着は、ソケット部１７に対するスタッド部１６の押し込みおよび引き抜きによって容易に行うことができる。よって、円筒状ケース１０ｂを脱着して、ノイズ減衰量を調節することが容易となる。 The attachment / detachment between the first and second cylindrical cases 10b and 10'b can be easily performed by pushing and pulling out the stud portion 16 with respect to the socket portion 17. Therefore, it becomes easy to attach and detach the cylindrical case 10b to adjust the noise attenuation amount.

また、第１連結部および第２連結部の形態は、図３および４に示したものに限定されず、例えば図５に示すような形態であってもよい。図１２に、図５に示すような形態の第１連結部および第２連結部を備える円筒状ケース１０'’ｂの斜視図を示す。本例において、第１連結部１２１''ｂおよび第２連結部１２２''ｂは、円柱状のスタッド部１６'および該円柱状のスタッド部１６'の円弧の一部を包むように嵌合するソケット部１７'を、第１の円板部２１ｂの周方向において１８０°離間して含む。スタッド部１６'およびソケット部１７'は、円板部２１ｂと連続し、円筒状ケース１０ｂの中心軸方向に沿って起立した棒部１８'の先端に設けられている。円柱状のスタッド部１６'は、円柱の平面部が、円板部２１ｂの径方向内側を向くように設けられる。ソケット部１７'は、円筒の円弧の一部を包むようにカーブした凹部を有し、該カーブの径方向に直交する方向の端部が、円板部２１ｂの径方向内側を向くように設けられる。該構成においても、スタッド部１６'を球体として構成した場合と同様に、第１および第２の円筒状ケース１０ｂ、１０'ｂ間の連結可動角度が大きい。 Further, the form of the first connecting portion and the second connecting portion is not limited to those shown in FIGS. 3 and 4, and may be, for example, the form shown in FIG. FIG. 12 shows a perspective view of a cylindrical case 10 ″ b including a first connecting portion and a second connecting portion having a form as shown in FIG. In this example, the first connecting portion 121 ″ b and the second connecting portion 122 ″ b are fitted so as to wrap a part of the arc of the columnar stud portion 16 ′ and the columnar stud portion 16 ′. The socket portion 17'is included at a distance of 180 ° in the circumferential direction of the first disc portion 21b. The stud portion 16'and the socket portion 17'are provided at the tip of a rod portion 18'that is continuous with the disk portion 21b and stands up along the central axis direction of the cylindrical case 10b. The columnar stud portion 16'is provided so that the flat surface portion of the cylinder faces the radial inward side of the disk portion 21b. The socket portion 17'has a concave portion curved so as to wrap a part of the arc of the cylinder, and the end portion in the direction orthogonal to the radial direction of the curve is provided so as to face the radial inward side of the disc portion 21b. .. Also in this configuration, the connection movable angle between the first and second cylindrical cases 10b and 10'b is large, as in the case where the stud portion 16'is configured as a sphere.

また、図４の例においては、スタッド部１６およびソケット部１７が、ノイズ対策部材１ｂ内でケーブル伸長方向に対して直列に並んで連結される形態を示したが、スタッド部１６およびソケット部１７を配置する位置を、円筒状ケース１０ｂの片端側と他端側とで変化させてもよい。例えば、図１３に示すように、円筒状ケース１０ｂの片端側および他端側で、スタッド部１６およびソケット部１７を配置する位置を微量ずつ変化させた形態としてもよい。図１３（Ａ）は、該形態の円筒状ケースの斜視図であり、（Ｂ）該形態の円筒状ケースを第１連結部１２１ｂが設けられている側から見た図である。本形態においては、第１連結部１２１ｂおよび第２連結部１２２ｂを構成するスタッド部１６およびソケット部１７は、それぞれ円板部２１ｂおよび２１'ｂの周方向において１８０°離間して設けられている。図１３（Ｂ）に示すように、本形態においては、円筒状ケースを第１連結部１２１ｂが設けられている側から見た場合に、第１連結部１２１ｂを構成するスタッド部１６およびソケット部１７の中心を結んだ線に対して、第２連結部１２２ｂを構成するスタッド部１６およびソケット部１７の中心を結んだ線が所定角度回転するようになっている。該形態によれば、らせん状に屈曲するノイズ対策部材１ｂを形成することができる。 Further, in the example of FIG. 4, the stud portion 16 and the socket portion 17 are connected side by side in series with respect to the cable extension direction in the noise suppression member 1b, but the stud portion 16 and the socket portion 17 are connected. The position where the noise is placed may be changed between one end side and the other end side of the cylindrical case 10b. For example, as shown in FIG. 13, the positions where the stud portion 16 and the socket portion 17 are arranged may be slightly changed on one end side and the other end side of the cylindrical case 10b. 13 (A) is a perspective view of the cylindrical case of the present form, and FIG. 13 (B) is a view of the cylindrical case of the present form as viewed from the side where the first connecting portion 121b is provided. In the present embodiment, the stud portion 16 and the socket portion 17 constituting the first connecting portion 121b and the second connecting portion 122b are provided 180 ° apart in the circumferential direction of the disc portions 21b and 21'b, respectively. .. As shown in FIG. 13B, in the present embodiment, when the cylindrical case is viewed from the side where the first connecting portion 121b is provided, the stud portion 16 and the socket portion constituting the first connecting portion 121b are formed. The line connecting the centers of the stud portion 16 and the socket portion 17 constituting the second connecting portion 122b rotates by a predetermined angle with respect to the line connecting the centers of the 17. According to this form, the noise suppression member 1b that bends in a spiral shape can be formed.

本実施形態においては、円筒状ケース１０ｂを開閉せずに、第１および第２の円筒状ケース１０ｂ、１０'ｂを着脱することが可能である。よって、円筒状ケース１０ｂおよび管状磁性体２０を「分割タイプ」とする必要がない。したがって、管状磁性体２０を分割タイプとせずに構成することによって、高いノイズ減衰効果を得ることができる。 In the present embodiment, the first and second cylindrical cases 10b and 10'b can be attached and detached without opening and closing the cylindrical case 10b. Therefore, it is not necessary to make the cylindrical case 10b and the tubular magnetic material 20 a "divided type". Therefore, a high noise attenuation effect can be obtained by constructing the tubular magnetic material 20 without making it a split type.

一方、ケーブル２に対する着脱を容易にするために、円筒状ケース１０ｂを「分割タイプ」としてもよい。図１４に、円筒状ケース１０ｂを円筒を分割面２５ｂに沿って半割りにした２つのサブケースから構成する例を示す。図１４（Ａ）は、円筒状ケース１０ｂを閉じた形態を、図１４（Ｂ）は、円筒状ケース１０ｂを開いた形態を、それぞれ示す。図１４に示すように、第１連結部１２１ｂおよび第２連結部１２２ｂがそれぞれ備えるスタッド部１６およびソケット部１７は、２つのサブケース上に一つずつ設けることが好ましい。該構成によれば、スタッド部１６およびソケット部１７が円筒状ケース１０ｂの開閉を妨げない。好ましくは、図１４に示すように、第１連結部１２１ｂおよび第２連結部１２２ｂがそれぞれ備えるスタッド部１６およびソケット部１７は、円筒状ケース１０ｂの分割面２５ｂに対して対称な位置に設けられている。 On the other hand, the cylindrical case 10b may be a "split type" in order to facilitate attachment / detachment to / from the cable 2. FIG. 14 shows an example in which the cylindrical case 10b is composed of two sub-cases in which the cylinder is divided in half along the dividing surface 25b. FIG. 14A shows a form in which the cylindrical case 10b is closed, and FIG. 14B shows a form in which the cylindrical case 10b is opened. As shown in FIG. 14, it is preferable that the stud portion 16 and the socket portion 17 included in the first connecting portion 121b and the second connecting portion 122b are provided one by one on the two subcases. According to this configuration, the stud portion 16 and the socket portion 17 do not interfere with the opening and closing of the cylindrical case 10b. Preferably, as shown in FIG. 14, the stud portion 16 and the socket portion 17 included in the first connecting portion 121b and the second connecting portion 122b are provided at positions symmetrical with respect to the dividing surface 25b of the cylindrical case 10b, respectively. ing.

なお、実施形態１においても記載したように、第１の円筒状ケース１０ｂの両端に第１連結部１２１ｂが設けられており、第２の円筒状ケース１０'ｂの両端に第２連結部１２２'ｂが設けられていてもよい。この場合、第１連結部１２１ｂのみを有する第１の円筒状ケース１０ｂと第２連結部１２２'ｂのみを有する第２の円筒状ケース１０'ｂとを交互に連結させることで、ノイズ対策部材１ｂを構成することができる。 As described in the first embodiment, the first connecting portions 121b are provided at both ends of the first cylindrical case 10b, and the second connecting portions 122 are provided at both ends of the second cylindrical case 10'b. 'B may be provided. In this case, the noise countermeasure member is formed by alternately connecting the first cylindrical case 10b having only the first connecting portion 121b and the second cylindrical case 10'b having only the second connecting portion 122'b. 1b can be configured.

なお、図３〜５、１２〜１４においては、第１連結部１２１ｂ、１２１'ｂ、および第２連結部１２２ｂ、１２２'ｂ、が、それぞれスタッド部１６およびソケット部１７を備える例を示したが、本実施形態はこれに限定されない。図１１に示すように、第１連結部１２１ｂは、一つのスタッド部１６に加えて、もう一つのスタッド部１６を有していてもよい。この場合、第２連結部１２２ｂは、一つのソケット部１７に加えて、もう一つのソケット部１７を有する。 In FIGS. 3 to 5 and 12 to 14, the first connecting portions 121b and 121'b and the second connecting portions 122b and 122'b have an example in which the stud portion 16 and the socket portion 17 are provided, respectively. However, this embodiment is not limited to this. As shown in FIG. 11, the first connecting portion 121b may have another stud portion 16 in addition to one stud portion 16. In this case, the second connecting portion 122b has another socket portion 17 in addition to one socket portion 17.

［実施形態３］
次に本発明の実施形態３について説明する。本発明の実施形態３に係るノイズ対策部材は、
前記第１および第２の円筒状ケースは、円筒を中心軸方向に沿って複数に分割した形状のサブケースがヒンジ部で開閉可能に連結されてなり、前記第１および第２の円筒状ケースを構成する該サブケースには、複数に分割された前記第１および第２の管状磁性体が１つずつ収容され、
前記第１連結部は、前記第１の円筒状ケースを閉じた状態において、前記ケーブルを挿通可能な内径を有する円筒状をなし、前記第１の円筒状ケースの中心軸を取り囲むように筒壁が設けられ、前記第１の円筒状ケースの片端から離れるに従って前記筒壁の外径が漸増したのち漸減し、
前記第２連結部は、前記第２の円筒状ケースを閉じた状態において、円筒状をなし、前記第２の円筒状ケースの中心軸を取り囲むように筒壁が設けられ、該筒壁は、前記第１連結部を挿入可能な内径を有する胴部と、前記第１連結部の外径の最大径よりも小さくかつ前記ケーブルを挿通可能な内径を有する先端部とを含み、
前記円筒状ケースの開閉によって、前記第１および第２の円筒状ケース同士の連結が着脱可能である、ノイズ対策部材である。 [Embodiment 3]
Next, Embodiment 3 of the present invention will be described. The noise countermeasure member according to the third embodiment of the present invention is
The first and second cylindrical cases are formed by connecting subcases having a shape in which a cylinder is divided into a plurality of pieces along the central axis direction so as to be openable and closable at a hinge portion, and the first and second cylindrical cases. In the sub-case constituting the above, the first and second tubular magnetic materials divided into a plurality of parts are housed one by one.
The first connecting portion has a cylindrical shape having an inner diameter through which the cable can be inserted when the first cylindrical case is closed, and has a cylindrical wall so as to surround the central axis of the first cylindrical case. Is provided, and the outer diameter of the cylindrical wall gradually increases and then gradually decreases as the distance from one end of the first cylindrical case increases.
The second connecting portion has a cylindrical shape when the second cylindrical case is closed, and a tubular wall is provided so as to surround the central axis of the second cylindrical case. A body portion having an inner diameter into which the first connecting portion can be inserted and a tip portion having an inner diameter smaller than the maximum outer diameter of the first connecting portion and into which the cable can be inserted are included.
It is a noise countermeasure member that can be attached to and detached from the first and second cylindrical cases by opening and closing the cylindrical case.

図６に、本発明の実施形態３に係るノイズ対策部材１ｃの斜視図を示す。図６に示すように、ノイズ対策部材１ｃにおいて、第１の円筒状ケース１０ｃおよび第２の円筒状ケース１０'ｃは、第１の円筒状ケース１０ｃの片端側に備えられた第１連結部１２１ｃが、第２の円筒状ケース１０'ｃの片端側に備えられた第２連結部１２２'ｃに挿入されて遊嵌することによって連結される。 FIG. 6 shows a perspective view of the noise suppression member 1c according to the third embodiment of the present invention. As shown in FIG. 6, in the noise suppression member 1c, the first cylindrical case 10c and the second cylindrical case 10'c are the first connecting portions provided on one end side of the first cylindrical case 10c. The 121c is connected by being inserted into the second connecting portion 122'c provided on one end side of the second cylindrical case 10'c and loosely fitted.

図７に、本発明の実施形態３に係る円筒状ケース１０ｃを開いた形態を示す。図７に示すように、本実施形態に係る円筒状ケース１０ｃは、円筒を中心軸方向に沿って複数に分割した形状のサブケース１０１ｃがヒンジ部１０２ｃで開閉可能に連結されてなる。なお、図示しないが、円筒状ケース１０ｃには、円筒状ケース１０ｃを閉じた状態で開かないように止め付ける係止部材が設けられていてもよい。サブケース１０１ｃには、管状磁性体２０を中心軸に沿って分割した管状磁性体（分割管状磁性体）２００がそれぞれ収容されている。なお、図７においては、円筒を中心軸方向に沿って半割した形態のサブケース１０１ｃを示しているが、円筒状ケース１０ｃを構成するサブケース１０１ｃの個数および形態は特に限定されない。また、各サブケース１０１ｃ内に収容される分割管状磁性体２００の個数および形態は、円筒状ケース１０ｃを構成するサブケース１０１ｃの個数および形態に合わせて適宜変更し得る。 FIG. 7 shows an open form of the cylindrical case 10c according to the third embodiment of the present invention. As shown in FIG. 7, in the cylindrical case 10c according to the present embodiment, a sub-case 101c having a shape in which a cylinder is divided into a plurality of parts along the central axis direction is connected by a hinge portion 102c so as to be openable and closable. Although not shown, the cylindrical case 10c may be provided with a locking member for fixing the cylindrical case 10c so as not to open in the closed state. The sub-case 101c houses the tubular magnetic material (divided tubular magnetic material) 200 obtained by dividing the tubular magnetic material 20 along the central axis. Although FIG. 7 shows the sub-case 101c in which the cylinder is divided in half along the central axis direction, the number and form of the sub-cases 101c constituting the cylindrical case 10c are not particularly limited. Further, the number and form of the divided tubular magnetic bodies 200 housed in each sub-case 101c can be appropriately changed according to the number and form of the sub-cases 101c constituting the cylindrical case 10c.

このように、円筒状ケース１０ｃを「分割タイプ」とすることによって、ケーブル２に対する着脱が容易となり、ケーブル２を結線した状態でも、円筒状ケース１０ｃを後付けおよび取り外しすることができる。よって、電子機器等を使用しながらでも、円筒状ケース１０ｃの連結個数を変更して、ノイズ減衰量を調節することができる。 By making the cylindrical case 10c a "split type" in this way, it becomes easy to attach / detach to / from the cable 2, and the cylindrical case 10c can be retrofitted / removed even when the cable 2 is connected. Therefore, the noise attenuation amount can be adjusted by changing the number of connected cylindrical cases 10c even while using an electronic device or the like.

図８に、本実施形態に係る円筒状ケース１０ｃを閉じた形態を示す。図８（Ａ）は、円筒状ケース１０ｃの斜視図であり、（Ｂ）は円筒状ケース１０ｃを第２連結部１２２ｃが設けられている側から見た図であり、（Ｃ）は円筒状ケース１０ｃを円筒２４ｃを正面として見た図であり、（Ｄ）は円筒状ケース１０ｃを第１連結部１２１ｃが設けられている側から見た図であり、（Ｅ）は円筒状ケース１０ｃを図８（Ｃ）に示す切断位置Ａ−Ａにて切断した断面図である。 FIG. 8 shows a closed form of the cylindrical case 10c according to the present embodiment. 8A is a perspective view of the cylindrical case 10c, FIG. 8B is a view of the cylindrical case 10c from the side where the second connecting portion 122c is provided, and FIG. 8C is a cylindrical case. The case 10c is a view of the cylindrical case 10c with the cylinder 24c as the front, (D) is a view of the cylindrical case 10c from the side where the first connecting portion 121c is provided, and (E) is a view of the cylindrical case 10c. It is sectional drawing which cut at the cutting position AA shown in FIG. 8C.

図８に示すように、円筒状ケース１０ｃを閉じた状態において、個々の円筒状ケース１０ｃは、中心軸方向に沿ってケーブルを挿通させる中空部２３ｃを区画する。円筒状ケース１０ｃを閉じた状態において、円筒状ケース１０ｃには、管状磁性体２０を該中空部２３ｃに沿って収容する収容部１９ｃが構成される。収容部１９ｃの円筒状ケース１０ｃの片端側、および他端側には、円筒状ケース１０ｃを閉じた状態において、円筒外周部から径方向内側に向かって延在し、中空部と連続した開口部１１ｃを区画する第１の円板部２１ｃおよび第２の円板部２１'ｃがそれぞれ構成される。円筒状ケース１０ｃは、片端側に第１連結部１２１ｃを備え、他端側に第２連結部１２２ｃを備える。 As shown in FIG. 8, in a state where the cylindrical case 10c is closed, each cylindrical case 10c partitions a hollow portion 23c through which a cable is inserted along the central axis direction. In the state where the cylindrical case 10c is closed, the cylindrical case 10c is configured with an accommodating portion 19c for accommodating the tubular magnetic body 20 along the hollow portion 23c. On one end side and the other end side of the cylindrical case 10c of the accommodating portion 19c, with the cylindrical case 10c closed, an opening extending radially inward from the outer peripheral portion of the cylinder and continuous with the hollow portion. The first disk portion 21c and the second disk portion 21'c that partition the 11c are respectively configured. The cylindrical case 10c is provided with a first connecting portion 121c on one end side and a second connecting portion 122c on the other end side.

第１連結部１２１ｃは、第１の円筒状ケース１０ｃを閉じた状態において、ケーブル２を挿通可能な内径を有する円筒状をなし、第１の円筒状ケース１０ｃの中心軸を取り囲むように筒壁が設けられ、第１の円筒状ケース１０ｃの片端から離れるに従って筒壁の外径が漸増したのち漸減する。好ましくは、第１連結部１２１ｃの筒壁の外径は、球面状のカーブを描く。 The first connecting portion 121c has a cylindrical shape having an inner diameter through which the cable 2 can be inserted when the first cylindrical case 10c is closed, and has a cylindrical wall so as to surround the central axis of the first cylindrical case 10c. Is provided, and the outer diameter of the tubular wall gradually increases and then gradually decreases as the distance from one end of the first cylindrical case 10c increases. Preferably, the outer diameter of the tubular wall of the first connecting portion 121c draws a spherical curve.

第２連結部１２２ｃは、第２の円筒状ケース１０'ｃを閉じた状態において、円筒状をなし、第２の円筒状ケース１０'ｃの中心軸を取り囲むように筒壁が設けられている。該筒壁は、胴部と先端部とからなる。第２連結部１２２ｃの筒壁の胴部は、第１連結部１２１ｃを挿入可能な内径を有する。なお、図６〜８に示す例においては、第２連結部１２２ｃの筒壁は、内径Ｒ５が増減せず、一定となっている。該筒壁の先端部の内径Ｒ６は、第１連結部１２１ｃの外径の最大径Ｒ４よりも小さく、かつケーブル２を挿通可能な内径となっている。 The second connecting portion 122c has a cylindrical shape when the second cylindrical case 10'c is closed, and a cylindrical wall is provided so as to surround the central axis of the second cylindrical case 10'c. .. The cylinder wall is composed of a body portion and a tip portion. The body of the tubular wall of the second connecting portion 122c has an inner diameter into which the first connecting portion 121c can be inserted. In the examples shown in FIGS. 6 to 8, the inner diameter R5 of the cylinder wall of the second connecting portion 122c does not increase or decrease and is constant. The inner diameter R6 of the tip of the tubular wall is smaller than the maximum outer diameter R4 of the outer diameter of the first connecting portion 121c, and is an inner diameter through which the cable 2 can be inserted.

本実施形態においては、高い連結可動角度と、連結角度の全方向への変化とを両立することができる。本実施形態においては、第２連結部１２２ｃが第１連結部１２１ｃを保持しつつ、第１連結部１２１ｃが漸増したのち漸減する外径を有することにより、第２連結部１２２ｃの内部で回動する。これにより、第１および第２の円筒状ケース１０ｃ，１０'ｃ間の連結角度が変化するため、ノイズ対策部材１ｃが、ケーブル２の屈曲に追従することができる。本実施形態においては、第１の円筒状ケース１０ｃに対する第２の円筒状ケース１０'ｃの連結角度は、全方向に変化することができる。よって、ノイズ対策部材１ｃが、ケーブル２のあらゆる方向への屈曲に追従することができる。 In the present embodiment, it is possible to achieve both a high connection movable angle and a change in the connection angle in all directions. In the present embodiment, the second connecting portion 122c holds the first connecting portion 121c, and the first connecting portion 121c has an outer diameter that gradually increases and then gradually decreases, so that the second connecting portion 122c rotates inside the second connecting portion 122c. To do. As a result, the connection angle between the first and second cylindrical cases 10c and 10'c changes, so that the noise suppression member 1c can follow the bending of the cable 2. In the present embodiment, the connection angle of the second cylindrical case 10'c with respect to the first cylindrical case 10c can be changed in all directions. Therefore, the noise suppression member 1c can follow the bending of the cable 2 in all directions.

なお、本実施形態においては、ノイズ対策部材１ｃがケーブル２の全面を覆うことで、ケーブル２の保護機能も兼ね得る。 In the present embodiment, the noise suppression member 1c covers the entire surface of the cable 2, so that the cable 2 can also have a protective function.

また、実施形態１においても記載したように、第１の円筒状ケース１０ｃの両端に第１連結部１２１ｃが設けられており、第２の円筒状ケース１０'ｃの両端に第２連結部１２２'ｃが設けられていてもよい。この場合、第１連結部１２１ｃのみを有する第１の円筒状ケース１０ｃと第２連結部１２２ｃのみを有する第２の円筒状ケース１０'ｃとを交互に連結させることで、ノイズ対策部材１ｃを構成することができる。 Further, as described in the first embodiment, the first connecting portions 121c are provided at both ends of the first cylindrical case 10c, and the second connecting portions 122 are provided at both ends of the second cylindrical case 10'c. 'c may be provided. In this case, the noise countermeasure member 1c is formed by alternately connecting the first cylindrical case 10c having only the first connecting portion 121c and the second cylindrical case 10'c having only the second connecting portion 122c. Can be configured.

［実施形態４］
次に本発明の実施形態４について説明する。本発明の実施形態４に係るノイズ対策部材は、
前記第１連結部は、前記ケーブルを挿通可能な内径を有する円筒状で、前記第１の円筒状ケースの中心軸を取り囲むように筒壁が設けられ、該筒壁には前記第１の円筒状ケースの中心軸方向に沿って延在する少なくとも一つのスリットが設けられ、前記第２の円筒状ケースの片端から離れるに従って前記筒壁の外径が漸増したのち漸減し、
前記第２連結部は、円筒状で、前記第２の円筒状ケースの中心軸を取り囲むように筒壁が設けられ、胴部が前記第１連結部を挿入可能な内径を有し、先端部が前記第１連結部の外径の最大径よりも小さくかつ前記ケーブルを挿通可能な内径を有する、ノイズ対策部材である。 [Embodiment 4]
Next, Embodiment 4 of the present invention will be described. The noise countermeasure member according to the fourth embodiment of the present invention is
The first connecting portion has a cylindrical shape having an inner diameter through which the cable can be inserted, and a cylinder wall is provided so as to surround the central axis of the first cylindrical case, and the cylinder wall is provided with the first cylinder. At least one slit extending along the central axis direction of the case is provided, and the outer diameter of the cylindrical wall gradually increases and then decreases as the distance from one end of the second cylindrical case increases.
The second connecting portion is cylindrical, a tubular wall is provided so as to surround the central axis of the second cylindrical case, the body portion has an inner diameter into which the first connecting portion can be inserted, and the tip portion. Is a noise countermeasure member having an inner diameter smaller than the maximum outer diameter of the first connecting portion and an inner diameter through which the cable can be inserted.

図９に、本発明の実施形態１に係るノイズ対策部材１ｄの斜視図を示す。なお、図９においては、説明のために、円筒状ケース１０ｄを半分取りさらって、円筒状ケース１０ｄの内部の形態を示している。図９に示すように、第１の円筒状ケース１０ｄおよび第２の円筒状ケース１０'ｄは、第１の円筒状ケース１０ｄの片端側に備えられた第１連結部１２１ｄが、第２の円筒状ケース１０'ｄの片端側に備えられた第２連結部１２２'ｄに挿入されて遊嵌することによって連結される。 FIG. 9 shows a perspective view of the noise suppression member 1d according to the first embodiment of the present invention. In FIG. 9, for the sake of explanation, half of the cylindrical case 10d is removed to show the internal shape of the cylindrical case 10d. As shown in FIG. 9, in the first cylindrical case 10d and the second cylindrical case 10'd, the first connecting portion 121d provided on one end side of the first cylindrical case 10d has a second The cylindrical case 10'd is connected by being inserted into a second connecting portion 122'd provided on one end side and loosely fitted.

図１０に、本発明の実施形態４に係る円筒状ケース１０ｄの形態を示す。図１０（Ａ）は、円筒状ケース１０ｄの斜視図であり、（Ｂ）は円筒状ケース１０ｄを第２連結部１２２ｄが設けられている側から見た図であり、（Ｃ）は円筒状ケース１０ｄを円筒を正面として見た図であり、（Ｄ）は円筒状ケース１０ｄを第１連結部１２１ｄが設けられている側から見た図であり、（Ｅ）は円筒状ケース１０ｄを図１０（Ｃ）に示す切断位置Ａ−Ａにて切断した断面図である。 FIG. 10 shows a form of the cylindrical case 10d according to the fourth embodiment of the present invention. 10A is a perspective view of the cylindrical case 10d, FIG. 10B is a view of the cylindrical case 10d from the side where the second connecting portion 122d is provided, and FIG. 10C is a cylindrical case. The case 10d is a view of the case 10d with the cylinder as the front, (D) is a view of the cylindrical case 10d from the side where the first connecting portion 121d is provided, and (E) is a view of the cylindrical case 10d. It is sectional drawing which cut at the cutting position AA shown in 10 (C).

実施形態１〜３と同様、個々の円筒状ケース１０ｄは、中心軸方向に沿ってケーブル２を挿通させる中空部２３ｄを区画する。円筒状ケース１０ｄは、管状磁性体２０を該中空部２３ｄに沿って収容する収容部１９ｄを備える。収容部１９ｄの円筒状ケース１０ｄの片端側、および他端側には、円筒外周部から径方向内側に向かって延在し、中空部２３ｄと連続した開口部１１ｄを区画する第１の円板部２１ｄおよび第２の円板部２１'ｄがそれぞれ設けられている。円筒状ケース１０ｄは、片端側に第１連結部１２１ｄを備え、他端側に第２連結部１２２ｄを備える。 Similar to the first to third embodiments, the individual cylindrical cases 10d partition the hollow portion 23d through which the cable 2 is inserted along the central axis direction. The cylindrical case 10d includes an accommodating portion 19d for accommodating the tubular magnetic body 20 along the hollow portion 23d. A first disk extending radially inward from the outer peripheral portion of the cylinder to partition the opening 11d continuous with the hollow portion 23d on one end side and the other end side of the cylindrical case 10d of the accommodating portion 19d. A portion 21d and a second disc portion 21'd are provided, respectively. The cylindrical case 10d is provided with a first connecting portion 121d on one end side and a second connecting portion 122d on the other end side.

第１連結部１２１ｄは、ケーブル２を挿通可能な内径を有する円筒状で、第１の円筒状ケース１０ｄの中心軸を取り囲むように筒壁が設けられている。第１連結部１２１ｄの筒壁の外径は、第１の円筒状ケース１０ｄの片端から離れるに従って漸増したのち漸減する。好ましくは、第１連結部１２１ｄの筒壁の外径は、球面状のカーブを描く。 The first connecting portion 121d has a cylindrical shape having an inner diameter through which the cable 2 can be inserted, and a cylindrical wall is provided so as to surround the central axis of the first cylindrical case 10d. The outer diameter of the cylinder wall of the first connecting portion 121d gradually increases and then gradually decreases as the distance from one end of the first cylindrical case 10d increases. Preferably, the outer diameter of the tubular wall of the first connecting portion 121d draws a spherical curve.

本実施形態においては、実施形態３とは異なり、第１連結部１２１ｄの筒壁に第１の円筒状ケース１０ｄの中心軸方向に沿って延在するスリット１３ｄが設けられている。第１連結部１２１ｄがスリット１３ｄを有することにより、第１連結部１２１ｄが第２連結部１２２ｄの内部に押し込まれる際、および第１連結部１２１ｄが第２連結部１２２ｄの内部から引き抜かれる際に、第１連結部１２１ｄの先端部の外径が小さくなるよう変形する。この押し込みおよび引き抜きによって、第１の円筒状ケース１０ｄおよび第２の円筒状ケース１０'ｄ間の着脱を容易に行うことができる。これにより、円筒状ケース１０ｄを着脱して、円筒状ケース１０ｄの連結個数を容易に増減させ、ノイズ減衰量を容易に調節することができる。さらに、第１連結部１２１ｄにスリット１３ｄが設けられていることにより、ケーブル２の屈曲時に、第１連結部１２１ｄがスリット１３ｄを介して変形して、ケーブル２に追従するように屈曲することが容易となる。なお、図９および１０においては、スリット１３ｄが一つの円筒状ケース１０ｄに対して等間隔に６つ設けられている例を示したが、スリット１３ｄを設ける間隔および数は、これに限定されない。 In the present embodiment, unlike the third embodiment, the cylindrical wall of the first connecting portion 121d is provided with a slit 13d extending along the central axis direction of the first cylindrical case 10d. When the first connecting portion 121d has the slit 13d, the first connecting portion 121d is pushed into the inside of the second connecting portion 122d, and the first connecting portion 121d is pulled out from the inside of the second connecting portion 122d. , The outer diameter of the tip of the first connecting portion 121d is reduced. By this pushing and pulling out, the attachment / detachment between the first cylindrical case 10d and the second cylindrical case 10'd can be easily performed. Thereby, the cylindrical case 10d can be attached and detached, the number of connected cylindrical cases 10d can be easily increased or decreased, and the noise attenuation amount can be easily adjusted. Further, since the first connecting portion 121d is provided with the slit 13d, when the cable 2 is bent, the first connecting portion 121d is deformed through the slit 13d and bent so as to follow the cable 2. It will be easy. Although FIGS. 9 and 10 show an example in which six slits 13d are provided at equal intervals with respect to one cylindrical case 10d, the intervals and the number of slits 13d provided are not limited thereto.

第２連結部１２２ｄは、円筒状をなし、第２の円筒状ケース１０'ｄの中心軸を取り囲むように筒壁が設けられている。該筒壁は、胴部と先端部とを有する。該筒壁の胴部が第１連結部１２１ｄを挿入可能な内径を有する。なお、図９および１０に示す例においては、第２連結部１２２ｄの筒壁の胴部は、内径Ｒ８が増減せず、一定となっている。該筒壁の先端部の内径Ｒ９は、第１連結部１２１ｄの外径の最大径Ｒ７よりも小さく、かつケーブル２を挿通可能な内径となっている。 The second connecting portion 122d has a cylindrical shape, and a cylindrical wall is provided so as to surround the central axis of the second cylindrical case 10'd. The tubular wall has a body portion and a tip portion. The body of the cylinder wall has an inner diameter into which the first connecting portion 121d can be inserted. In the examples shown in FIGS. 9 and 10, the inner diameter R8 of the body of the cylinder wall of the second connecting portion 122d does not increase or decrease and is constant. The inner diameter R9 of the tip of the tubular wall is smaller than the maximum outer diameter R7 of the outer diameter of the first connecting portion 121d, and is an inner diameter through which the cable 2 can be inserted.

本実施形態においては、上述した実施形態３と同様に、高い連結可動角度と、連結角度の全方向への変化とを両立することができる。さらに、本実施形態においては、第１連結部１２１ｄが筒壁にスリットを有するため、円筒状ケース１０ｄを開閉せずに、第１および第２の円筒状ケース１０ｄ，１０'ｄを着脱することが可能である。よって、管状磁性体２０を分割タイプとせずに構成することによって、高いノイズ減衰効果を得ることができる。 In the present embodiment, similarly to the third embodiment described above, it is possible to achieve both a high connection movable angle and a change in the connection angle in all directions. Further, in the present embodiment, since the first connecting portion 121d has a slit in the cylindrical wall, the first and second cylindrical cases 10d and 10'd are attached and detached without opening and closing the cylindrical case 10d. Is possible. Therefore, a high noise attenuation effect can be obtained by constructing the tubular magnetic material 20 without making it a split type.

なお、本実施形態においては、ノイズ対策部材１ｄがケーブル２の全面を覆うことで、ケーブル２の保護機能も兼ね得る。 In the present embodiment, the noise suppression member 1d covers the entire surface of the cable 2, so that the cable 2 can also have a protective function.

また、実施形態１においても記載したように、第１の円筒状ケース１０ｄの両端に第１連結部１２１ｄが設けられており、第２の円筒状ケース１０'ｄの両端に第２連結部１２２'ｄが設けられていてもよい。この場合、第１連結部１２１ｄのみを有する第１の円筒状ケース１０ｄと第２連結部１２２'ｄのみを有する第２の円筒状ケース１０'ｄとを交互に連結させることで、ノイズ対策部材１ｄを構成することができる。 Further, as described in the first embodiment, the first connecting portions 121d are provided at both ends of the first cylindrical case 10d, and the second connecting portions 122 are provided at both ends of the second cylindrical case 10'd. 'd may be provided. In this case, the noise countermeasure member is formed by alternately connecting the first cylindrical case 10d having only the first connecting portion 121d and the second cylindrical case 10'd having only the second connecting portion 122'd. 1d can be configured.

本ノイズ対策部材は、自動車に備えられた電子部品や、発電装置、電源装置、通信機器、およびＯＡ／ＦＡ機器等のケーブルに装着され、これらの電子部品や電子機器内部で発生し、または外部で発生してケーブル内を伝播するノイズを抑制するノイズ対策部材として特に有効である。 This noise suppression member is attached to cables of electronic parts provided in automobiles, power generation devices, power supply devices, communication devices, OA / FA devices, etc., and is generated inside or externally to these electronic parts or electronic devices. It is particularly effective as a noise countermeasure member that suppresses noise generated in the cable and propagated in the cable.

１ａ，ｂ，ｃ，ｄ ノイズ対策部材
２ ケーブル
１０ａ，ｂ，ｃ，ｄ，１０'ａ，ｂ，ｃ，ｄ 円筒状ケース
１０１ｃ サブケース
１０２ｃ ヒンジ部
１１ａ，ｂ，ｃ，ｄ 開口部
１２１ａ，ｂ，ｃ，ｄ，１２１'ｂ 第１連結部
１２２ａ，ｂ，ｃ，ｄ，１２２'ｂ 第２連結部
１３ａ，ｄ スリット
１４ａ 返し
１５ａ （第１連結部の）筒壁
１５'ａ （第２連結部の）筒壁
１６，１６' スタッド部
１７，１７' ソケット部
１８ 棒部
１９ａ，ｂ，ｃ，ｄ 収容部
２０ 磁性体
２１ａ，ｂ，ｃ，ｄ，２１'ａ，ｂ，ｃ，ｄ， 円板部
２２ａ 斜面部
２３ａ，ｂ，ｃ，ｄ 中空部
２４ａ，ｂ，ｃ，ｄ 円筒部
２５ｂ 分割面
２６ｂ，２６'ｂ 凹部
２００ 分割管状磁性体 1 a, b, c, d Noise countermeasure member 2 Cable 10a, b, c, d, 10'a, b, c, d Cylindrical case 101c Sub case 102c Hinge portion 11a, b, c, d Opening 121a, b , C, d, 121'b 1st connecting part 122a, b, c, d, 122'b 2nd connecting part 13a, d Slit 14a Return 15a (of the 1st connecting part) Cylinder wall 15'a (2nd connecting) Cylinder wall 16, 16'Stud part 17, 17' Socket part 18 Rod part 19a, b, c, d Storage part 20 Magnetic material 21a, b, c, d, 21'a, b, c, d, Disk part 22a Slope part 23a, b, c, d Hollow part 24a, b, c, d Cylindrical part 25b Divided surface 26b, 26'b Recessed 200 Divided tubular magnetic material

Claims (7)

単一のケーブルを挿通させるように配置された第１および第２の管状磁性体と、
前記第１および第２の管状磁性体をそれぞれ収容するとともに、前記ケーブルを挿通させる中空部を区画した、第１および第２の円筒状ケースと、
前記第１の円筒状ケースの片端に設けられ、該第１の円筒状ケースを、該片端側で隣接する前記第２の円筒状ケースと連結させる第１連結部と、
前記第２の円筒状ケースの片端に設けられ、該第２の円筒状ケースを、該片端側で隣接する前記第１の円筒状ケースと連結させる第２連結部と、
を有し、
前記第１および前記第２の円筒状ケースは、前記第１連結部および前記第２連結部によって着脱可能に連結され、
連結された前記第１および第２の円筒状ケース間の連結角度が、挿通される前記ケーブルの屈曲に応じて変化し、
前記第１連結部は、前記ケーブルを挿通可能な内径を有する円筒状で、前記第１の円筒状ケースの中心軸を取り囲むように筒壁が設けられ、該筒壁には前記第１の円筒状ケースの中心軸方向に沿って延在する少なくとも一つのスリットが設けられ、先端部の外周部に返しを有し、
前記第２連結部は、前記ケーブルを挿通可能な内径を有するテーパー円筒状であり、前記第２の円筒状ケースの円筒の先端外周部に連設した筒壁を備え、前記第２の円筒状ケースの片端から離れるに従って筒壁の内径が漸減し、該筒壁の先端部が前記返しと遊嵌可能な内径を有する、ノイズ対策部材。 A first and second tubular magnetic material arranged to allow a single cable to pass through,
A first and second cylindrical case containing the first and second tubular magnetic materials, respectively, and partitioning a hollow portion through which the cable is inserted.
A first connecting portion provided at one end of the first cylindrical case and connecting the first cylindrical case to the adjacent second cylindrical case on the one end side.
A second connecting portion provided at one end of the second cylindrical case and connecting the second cylindrical case to the adjacent first cylindrical case on the one end side.
Have,
The first and second cylindrical cases are detachably connected by the first connecting portion and the second connecting portion.
The connection angle between the connected first and second cylindrical cases changes according to the bending of the cable to be inserted .
The first connecting portion has a cylindrical shape having an inner diameter through which the cable can be inserted, and a cylinder wall is provided so as to surround the central axis of the first cylindrical case, and the cylinder wall is provided with the first cylinder. At least one slit extending along the central axis direction of the cylindrical case is provided, and the outer peripheral portion of the tip portion has a barb.
The second connecting portion has a tapered cylindrical shape having an inner diameter through which the cable can be inserted, and includes a cylindrical wall connected to the outer peripheral portion of the tip of the cylinder of the second cylindrical case, and the second cylindrical shape. A noise suppression member in which the inner diameter of the cylinder wall gradually decreases as the distance from one end of the case increases, and the tip end portion of the cylinder wall has an inner diameter that can be loosely fitted with the barb. 単一のケーブルを挿通させるように配置された第１および第２の管状磁性体と、
前記第１および第２の管状磁性体をそれぞれ収容するとともに、前記ケーブルを挿通させる中空部を区画した、第１および第２の円筒状ケースと、
前記第１の円筒状ケースの片端に設けられ、該第１の円筒状ケースを、該片端側で隣接する前記第２の円筒状ケースと連結させる第１連結部と、
前記第２の円筒状ケースの片端に設けられ、該第２の円筒状ケースを、該片端側で隣接する前記第１の円筒状ケースと連結させる第２連結部と、
を有し、
前記第１および前記第２の円筒状ケースは、前記第１連結部および前記第２連結部によって着脱可能に連結され、
連結された前記第１および第２の円筒状ケース間の連結角度が、挿通される前記ケーブルの屈曲に応じて変化し、
前記第１連結部は、前記ケーブルを挿通可能な内径を有する円筒状で、前記第１の円筒状ケースの中心軸を取り囲むように筒壁が設けられ、該筒壁には前記第１の円筒状ケースの中心軸方向に沿って延在する少なくとも一つのスリットが設けられ、前記第２の円筒状ケースの片端から離れるに従って前記筒壁の外径が漸増したのち漸減し、
前記第２連結部は、円筒状で、前記第２の円筒状ケースの中心軸を取り囲むように筒壁が設けられ、該筒壁は、前記第１連結部を挿入可能な内径を有する胴部と、前記第１連結部の外径の最大径よりも小さくかつ前記ケーブルを挿通可能な内径を有する先端部とを含む、ノイズ対策部材。 A first and second tubular magnetic material arranged to allow a single cable to pass through,
A first and second cylindrical case containing the first and second tubular magnetic materials, respectively, and partitioning a hollow portion through which the cable is inserted.
A first connecting portion provided at one end of the first cylindrical case and connecting the first cylindrical case to the adjacent second cylindrical case on the one end side.
A second connecting portion provided at one end of the second cylindrical case and connecting the second cylindrical case to the adjacent first cylindrical case on the one end side.
Have,
The first and second cylindrical cases are detachably connected by the first connecting portion and the second connecting portion.
The connection angle between the connected first and second cylindrical cases changes according to the bending of the cable to be inserted.
The first connecting portion has a cylindrical shape having an inner diameter through which the cable can be inserted, and a cylinder wall is provided so as to surround the central axis of the first cylindrical case, and the cylinder wall is provided with the first cylinder. At least one slit extending along the central axis direction of the case is provided, and the outer diameter of the cylindrical wall gradually increases and then decreases as the distance from one end of the second cylindrical case increases.
The second connecting portion is cylindrical, and a tubular wall is provided so as to surround the central axis of the second cylindrical case, and the tubular wall has a body portion having an inner diameter into which the first connecting portion can be inserted. When the and smaller than the maximum diameter of the outer diameter of the first connecting portion and a distal portion having an insertion inner diameter capable of the cable, noise countermeasures member. 前記第１および第２の円筒状ケースは、円筒を中心軸方向に沿って複数に分割した形状のサブケースがヒンジ部で開閉可能に連結されてなり、前記第１および第２の円筒状ケースを構成する該サブケースには、複数に分割された前記第１および第２の管状磁性体が１つずつ収容される、請求項１または２に記載のノイズ対策部材。 The first and second cylindrical cases are formed by connecting subcases having a shape in which a cylinder is divided into a plurality of pieces along the central axis direction so as to be openable and closable at a hinge portion, and the first and second cylindrical cases. The noise countermeasure member according to claim 1 or 2 , wherein the first and second tubular magnetic materials divided into a plurality of parts are housed in the sub-case. 単一のケーブルを挿通させるように配置された第１および第２の管状磁性体と、
前記第１および第２の管状磁性体をそれぞれ収容するとともに、前記ケーブルを挿通させる中空部を区画した、第１および第２の円筒状ケースと、
前記第１の円筒状ケースの片端に設けられ、該第１の円筒状ケースを、該片端側で隣接する前記第２の円筒状ケースと連結させる第１連結部と、
前記第２の円筒状ケースの片端に設けられ、該第２の円筒状ケースを、該片端側で隣接する前記第１の円筒状ケースと連結させる第２連結部と、
を有し、
前記第１および前記第２の円筒状ケースは、前記第１連結部および前記第２連結部によって着脱可能に連結され、
連結された前記第１および第２の円筒状ケース間の連結角度が、挿通される前記ケーブルの屈曲に応じて変化し、
前記第１および第２の円筒状ケースは、円筒を中心軸方向に沿って複数に分割した形状のサブケースがヒンジ部で開閉可能に連結されてなり、前記第１および第２の円筒状ケースを構成する該サブケースには、複数に分割された前記第１および第２の管状磁性体が１つずつ収容され、
前記第１連結部は、前記第１の円筒状ケースを閉じた状態において、前記ケーブルを挿通可能な内径を有する円筒状をなし、前記第１の円筒状ケースの中心軸を取り囲むように筒壁が設けられ、前記第１の円筒状ケースの片端から離れるに従って前記筒壁の外径が漸増したのち漸減し、
前記第２連結部は、前記第２の円筒状ケースを閉じた状態において、円筒状をなし、前記第２の円筒状ケースの中心軸を取り囲むように筒壁が設けられ、該筒壁は、前記第１連結部を挿入可能な内径を有する胴部と、前記第１連結部の外径の最大径よりも小さくかつ前記ケーブルを挿通可能な内径を有する先端部とを含み、
前記円筒状ケースの開閉によって、前記第１および第２の円筒状ケース同士の連結が着脱可能である、ノイズ対策部材。 A first and second tubular magnetic material arranged to allow a single cable to pass through,
A first and second cylindrical case containing the first and second tubular magnetic materials, respectively, and partitioning a hollow portion through which the cable is inserted.
A first connecting portion provided at one end of the first cylindrical case and connecting the first cylindrical case to the adjacent second cylindrical case on the one end side.
A second connecting portion provided at one end of the second cylindrical case and connecting the second cylindrical case to the adjacent first cylindrical case on the one end side.
Have,
The first and second cylindrical cases are detachably connected by the first connecting portion and the second connecting portion.
The connection angle between the connected first and second cylindrical cases changes according to the bending of the cable to be inserted.
The first and second cylindrical cases are formed by connecting subcases having a shape in which a cylinder is divided into a plurality of pieces along the central axis direction so as to be openable and closable at a hinge portion, and the first and second cylindrical cases. In the sub-case constituting the above, the first and second tubular magnetic materials divided into a plurality of parts are housed one by one.
The first connecting portion has a cylindrical shape having an inner diameter through which the cable can be inserted when the first cylindrical case is closed, and has a cylindrical wall so as to surround the central axis of the first cylindrical case. Is provided, and the outer diameter of the cylindrical wall gradually increases and then gradually decreases as the distance from one end of the first cylindrical case increases.
The second connecting portion has a cylindrical shape when the second cylindrical case is closed, and a tubular wall is provided so as to surround the central axis of the second cylindrical case. A body portion having an inner diameter into which the first connecting portion can be inserted and a tip portion having an inner diameter smaller than the maximum outer diameter of the first connecting portion and into which the cable can be inserted are included.
By opening and closing of said cylindrical casing, connected between said first and second cylindrical case is detachable, noise countermeasures member. 前記第１の管状磁性体は、前記第２の管状磁性体と、ノイズ減衰量の帯域が互いに異なる、請求項１〜４のいずれか１項に記載のノイズ対策部材。 The noise countermeasure member according to any one of claims 1 to 4 , wherein the first tubular magnetic material has a noise attenuation band different from that of the second tubular magnetic material. 前記第１および第２の円筒状ケース間の連結角度が、３°以上４５°以下である、請求項１〜５のいずれか１項に記載のノイズ対策部材。 The noise suppression member according to any one of claims 1 to 5 , wherein the connection angle between the first and second cylindrical cases is 3 ° or more and 45 ° or less. 前記第１および第２の管状磁性体の径方向に直交する方向の寸法が、３ｍｍ以上３０ｍｍ以下である、請求項１〜６のいずれか１項に記載のノイズ対策部材。 The noise suppression member according to any one of claims 1 to 6 , wherein the dimensions of the first and second tubular magnetic bodies in the direction orthogonal to the radial direction are 3 mm or more and 30 mm or less.
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