JP2015100120A

JP2015100120A - Noise filter structure of harness

Info

Publication number: JP2015100120A
Application number: JP2015004017A
Authority: JP
Inventors: 幸成長西; Yukinari Naganishi
Original assignee: Yazaki Corp
Current assignee: Yazaki Corp
Priority date: 2015-01-13
Filing date: 2015-01-13
Publication date: 2015-05-28
Anticipated expiration: 2029-09-11
Also published as: JP5966026B2

Abstract

PROBLEM TO BE SOLVED: To enable compaction, weight saving or cost reduction by reducing the number of components in addition to surely suppressing noise.SOLUTION: A noise filter structure of a harness is adopted in which a wire winding part of a wire harness is spirally disposed on an outer peripheral side of a bottomed cylindrical part 27 of an insulative clamp member 26, a magnetic substance 1 is inserted from a cylindrical inlet 27a into the cylindrical part, and the inlet 27a is closed by a cap 28. The cap 28 includes a spring piece 28a that presses an end portion of the magnetic substance 1, and in the cylindrical part 27, a lock part 5 is provided that is engaged with a hole of a panel on a mounting side.

Description

本発明は、例えば自動車の電気部品等のノイズ対策としてフェライトコア等の磁性体を用いたハーネスのノイズフィルタ構造に関するものである。 The present invention relates to a noise filter structure of a harness using a magnetic material such as a ferrite core as a noise countermeasure for, for example, an electric part of an automobile.

自動車には様々な電気部品が搭載されており、ＥＭＣ対策のために、コンデンサやコイルを用いて種々の形態のノイズフィルタが搭載されている。 Various electric parts are mounted on automobiles, and various forms of noise filters are mounted using capacitors and coils for EMC countermeasures.

例えば、特許文献１には、分割式のフェライトコアに電線挿通用の溝を設け、フェライトコアを合成樹脂製のケースに収容し、コネクタの導出電線をフェライトコアの溝に挿通させて、ケースを閉じて構成される、いわゆる後付け式のノイズフィルタ（図示せず）が記載されている。 For example, in Patent Document 1, a split ferrite core is provided with a wire insertion groove, the ferrite core is accommodated in a synthetic resin case, the connector lead-out wire is inserted into the ferrite core groove, and the case is A so-called retrofitted noise filter (not shown) is described which is configured to be closed.

また、特許文献２には、円柱状のフェライトコアの周囲に絶縁被覆銅線をコイル状に巻き付け、絶縁被覆銅線の両端を圧着端子でハーネス（電線）に接続し、絶縁被覆銅線と圧着端子とを合成樹脂製のケース内に収容して構成される、いわゆるサブハーネス組み込み式のノイズフィルタ（図示せず）が記載されている。 In Patent Document 2, an insulation-coated copper wire is wound around a cylindrical ferrite core in a coil shape, and both ends of the insulation-coated copper wire are connected to a harness (electric wire) with a crimp terminal, and the insulation-coated copper wire is crimped. A so-called sub-harness built-in type noise filter (not shown) configured by housing a terminal in a synthetic resin case is described.

また、特許文献３には、円柱状の磁性コアの周囲に巻線コイルを配線して接着剤で固定し、巻線コイルの一端を金属製の一方の端子に接続し、巻線コイルの他端を他方の端子に接続して、各端子を樹脂材の台に固定して構成される、いわゆるターミナル組み込み式のノイズフィルタ（図示せず）が記載されている。 In Patent Document 3, a winding coil is wired around a cylindrical magnetic core and fixed with an adhesive, one end of the winding coil is connected to one metal terminal, A so-called terminal built-in type noise filter (not shown) configured by connecting an end to the other terminal and fixing each terminal to a resin base is described.

上記各例におけるフェライトは、金属酸化物（電気的に絶縁性を示す）の強磁性体で、例えばセラミックとして焼結したものあり、金属に較べて固有抵抗が大きいので、高周波での使用に適している。コアは中子、鉄心等の意味である。フェライトコアの磁化に応じて、ノイズ電流の流れている電線のインピーダンス（Ω）が増加し、ノイズ電流の伝播が抑えられる。電線にノイズとなる高周波電流が流れると、磁界が発生し、これをフェライトコアが吸収し、熱に変換して放射する。磁性体としては、フェライト以外にパーマロイや鉄心等が挙げられる。 The ferrite in each of the above examples is a ferromagnetic material of metal oxide (electrically insulating), which is sintered as ceramic, for example, and has a higher specific resistance than metal, so it is suitable for use at high frequencies. ing. The core means core, iron core and the like. In accordance with the magnetization of the ferrite core, the impedance (Ω) of the wire through which the noise current flows increases, and the propagation of the noise current is suppressed. When a high-frequency current that becomes noise flows through the electric wire, a magnetic field is generated, which is absorbed by the ferrite core, converted into heat, and radiated. Examples of the magnetic material include permalloy and iron core in addition to ferrite.

特開２００７−５７５１号公報（図１，図３）JP 2007-5751 A (FIGS. 1 and 3) 特開平８−３３０７５９号公報（図１）JP-A-8-330759 (FIG. 1) 特開２００８−１０９４８４号公報（図２〜図３）JP 2008-109484 A (FIGS. 2 to 3)

しかしながら、上記引用文献１に記載されたノイズフィルタにあっては、ハーネス（電線）にノイズフィルタを固定するだけなので、フェライトコアの重みで電線に直接力がかかってしまい、車両等の振動で電線が傷んだり、雑音を生じてしまうという懸念があった。 However, in the noise filter described in the above cited reference 1, since the noise filter is only fixed to the harness (electric wire), the weight is directly applied to the electric wire due to the weight of the ferrite core, and the electric wire is affected by the vibration of the vehicle or the like. There was a concern that would damage or cause noise.

また、引用文献２に記載されたノイズフィルタにあっては、銅線のコイルとハーネス（電線）との接続や、フェライトコアとコイルとの固定や、ケースとハーネスとの固定等を必要として、部品点数が増加し、構造が複雑化するという問題があった。 Moreover, in the noise filter described in the cited document 2, it is necessary to connect a copper wire coil and a harness (electric wire), fix a ferrite core and a coil, fix a case and a harness, and the like. There was a problem that the number of parts increased and the structure became complicated.

また、引用文献３に記載されたノイズフィルタにあっては、各端子と巻線コイルとの接続や固定のための構造が複雑になるという問題があった。 Further, the noise filter described in the cited document 3 has a problem that the structure for connecting and fixing each terminal and the winding coil becomes complicated.

本発明は、上記した点に鑑み、ノイズを確実に抑制することは勿論のこと、部品点数を削減し、コンパクト化、軽量化やコスト削減、部品組付作業の削減、搭載（取付）側の省スペース化を可能としたハーネスのノイズフィルタ構造を提供することを目的とする。 In view of the above-mentioned points, the present invention not only reliably suppresses noise, but also reduces the number of parts, downsizing, reducing weight and cost, reducing parts assembly work, and mounting (mounting) side. An object of the present invention is to provide a noise filter structure for a harness that can save space.

上記目的を達成するために、本発明の請求項１に係るハーネスのノイズフィルタ構造は、絶縁性のクランプ部材の有底の筒状部の外周側にワイヤハーネスの電線の巻き部が螺旋状に配置され、該筒状部の入口から該筒状部内に磁性体が挿入され、該入口にキャップが閉止され、該キャップは、該磁性体の端部を押さえるばね片を有し、該筒状部に、取付側のパネルの孔に係合する係止部が設けられたことを特徴とする。 In order to achieve the above object, the noise filter structure for a harness according to claim 1 of the present invention is such that the wire winding portion of the wire harness is spirally formed on the outer peripheral side of the bottomed cylindrical portion of the insulating clamp member. The magnetic body is inserted into the cylindrical portion from the inlet of the cylindrical portion, the cap is closed at the inlet, the cap has a spring piece that presses the end of the magnetic body, and the cylindrical shape The portion is provided with a locking portion that engages with a hole in the panel on the attachment side.

上記構成により、ワイヤハーネスの電線が磁性体の径方向外側で螺旋状に巻かれたことで、従来の銅線を螺旋状に巻いてハーネスに接続する場合に較べて、端子等の接続部品と接続工数が不要となる。また、磁性体が筒状部の孔部の一方の開口（入口）から孔部内に挿入されてばね片でガタつきなく保持される。また、磁性体と電線巻き部を保持したクランプ部材がノイズフィルタとして係止部で車両パネルの孔部等にワンタッチで固定される。車両パネルへの係止部の係止は通常のワイヤハーネスの係止と同様に行われる。 With the above configuration, the wires of the wire harness are spirally wound on the outer side in the radial direction of the magnetic body, and compared with the case where the conventional copper wire is spirally wound and connected to the harness, No connection man-hours are required. Further, the magnetic body is inserted into the hole portion from one opening (inlet) of the hole portion of the cylindrical portion, and is held without play by the spring piece. Moreover, the clamp member holding the magnetic body and the wire winding portion is fixed as a noise filter to the hole or the like of the vehicle panel with a one-touch as a locking portion. Locking of the locking portion to the vehicle panel is performed in the same manner as locking of a normal wire harness.

請求項２に係るハーネスのノイズフィルタ構造は、絶縁性のクランプ部材の弾性の筒状部が長手方向のスリット状の開口を有し、該筒状部の前後端に各ばね片が内向きに設けられ、該開口から該筒状部の内側に磁性体が挿入され、該筒状部の縮径方向のばね力と該各ばね片とで該磁性体が固定され、該筒状部の外周側にワイヤハーネスの電線の巻き部が螺旋状に配置され、該筒状部に、取付側のパネルの孔に係合する係止部が設けられたことを特徴とする。 In the noise filter structure of the harness according to claim 2, the elastic cylindrical portion of the insulating clamp member has a slit-like opening in the longitudinal direction, and each spring piece is inward at the front and rear ends of the cylindrical portion. A magnetic body is inserted into the cylindrical portion from the opening, and the magnetic body is fixed by the spring force in the diameter-reducing direction of the cylindrical portion and each spring piece, and the outer periphery of the cylindrical portion The winding part of the electric wire of a wire harness is helically arrange | positioned at the side, The latching | locking part engaged with the hole of the panel of an attachment side was provided in this cylindrical part, It is characterized by the above-mentioned.

上記構成により、ワイヤハーネスの電線が磁性体の径方向外側で螺旋状に巻かれたことで、従来の銅線を螺旋状に巻いてハーネスに接続する場合に較べて、端子等の接続部品と接続工数が不要となる。また、磁性体の外周に巻き部を設けないことで、筒状部の内側に磁性体が隙間なく挿入配置されて正確に位置決めされる。また、磁性体が筒状部内に各ばね片でガタつきなく保持される。また、磁性体と電線巻き部を保持したクランプ部材がノイズフィルタとして係止部で車両パネルの孔部等にワンタッチで固定される。車両パネルへの係止部の係止は通常のワイヤハーネスの係止と同様に行われる。 With the above configuration, the wires of the wire harness are spirally wound on the outer side in the radial direction of the magnetic body, and compared with the case where the conventional copper wire is spirally wound and connected to the harness, No connection man-hours are required. In addition, by not providing a winding portion on the outer periphery of the magnetic body, the magnetic body is inserted and arranged without gaps inside the cylindrical portion and is accurately positioned. Further, the magnetic body is held in the cylindrical portion with no play by each spring piece. Moreover, the clamp member holding the magnetic body and the wire winding portion is fixed as a noise filter to the hole or the like of the vehicle panel with a one-touch as a locking portion. Locking of the locking portion to the vehicle panel is performed in the same manner as locking of a normal wire harness.

請求項３に係るハーネスのノイズフィルタ構造は、絶縁性のクランプ部材のベース部とカバー部とで円筒状のケースが形成され、該ベース部に磁性体が収容され、該カバー部に、該磁性体を押さえるばね片が設けられ、該ベース部と該カバー部とが係止部と係合部とで係止され、該ケースの外周側にワイヤハーネスの電線の巻き部が螺旋状に配置されたことを特徴とする。 In the noise filter structure of the harness according to claim 3, a cylindrical case is formed by the base portion and the cover portion of the insulating clamp member, a magnetic body is accommodated in the base portion, and the magnetic portion is contained in the cover portion. A spring piece for holding the body is provided, the base portion and the cover portion are locked by the locking portion and the engaging portion, and the wire winding portion of the wire harness is spirally arranged on the outer peripheral side of the case. It is characterized by that.

上記構成により、ワイヤハーネスの電線が磁性体の径方向外側で螺旋状に巻かれたことで、従来の銅線を螺旋状に巻いてハーネスに接続する場合に較べて、端子等の接続部品と接続工数が不要となる。また、磁性体がケース内にばね片でガタつきなく保持される。 With the above configuration, the wires of the wire harness are spirally wound on the outer side in the radial direction of the magnetic body, and compared with the case where the conventional copper wire is spirally wound and connected to the harness, No connection man-hours are required. Further, the magnetic body is held in the case without play by the spring piece.

請求項４に係るハーネスのノイズフィルタ構造は、絶縁性のクランプ部材の基板部の一側にカバーが連結して開閉自在に設けられ、該カバーの回動先端側の係止部を係合させる係合部が該基板部の他側に設けられ、該基板部の前後に各電線挟持片が設けられ、該電線挟持片は内側に電線抜け止め用の突起又は係止片を有し、磁性体の外周側にワイヤハーネスの電線の巻き部が螺旋状に配置され、該磁性体と該巻き部とが該カバーの内側に収容され、各電線挟持片が該磁性体の前後の端部に対向して該磁性体に対するストッパとして位置し、該巻き部の始端と終端とに続く該電線が該電線挟持片に固定され、取付側のパネルの孔に係合する係止部が該板部に設けられたことを特徴とする。 The noise filter structure of the harness according to claim 4 is provided such that a cover is connected to one side of the base plate portion of the insulating clamp member so as to be freely opened and closed, and engages with a locking portion on the rotating front end side of the cover. An engaging part is provided on the other side of the board part, and each wire holding piece is provided on the front and rear sides of the board part. The wire holding piece has a protrusion or locking piece for preventing the wire from being removed, and is magnetic. The wire winding portion of the wire harness is spirally arranged on the outer peripheral side of the body, the magnetic body and the winding portion are accommodated inside the cover, and each wire holding piece is at the front and rear ends of the magnetic body. Oppositely positioned as a stopper for the magnetic body, the electric wire following the start and end of the winding portion is fixed to the electric wire clamping piece, and a locking portion that engages with a hole in the panel on the mounting side is the plate portion It is characterized by being provided in.

上記構成により、ワイヤハーネスの電線が磁性体の径方向外側で螺旋状に巻かれたことで、従来の銅線を螺旋状に巻いてハーネスに接続する場合に較べて、端子等の接続部品と接続工数が不要となる。また、巻き部の始端と終端とに続く各電線部分がクランプ部材の各電線挟持片に固定されたことで、巻き部のばらけや離脱が防止され、ノイズ吸収が確実に行われる。また、各電線挟持片が磁性体に対する前後方向のストッパとして作用する。また、磁性体の外周の電線巻き部が外側のクランプ部材で外部との干渉等から安全に保護される。また、磁性体と電線巻き部を保持したクランプ部材がノイズフィルタとして係止部で車両パネルの孔部等にワンタッチで固定される。車両パネルへの係止部の係止は通常のワイヤハーネスの係止と同様に行われる。 With the above configuration, the wires of the wire harness are spirally wound on the outer side in the radial direction of the magnetic body, and compared with the case where the conventional copper wire is spirally wound and connected to the harness, No connection man-hours are required. Moreover, since each electric wire part following the starting end and termination | terminus of a winding part is being fixed to each electric wire clamping piece of a clamp member, the winding part is prevented from separating and detaching, and noise absorption is performed reliably. Moreover, each electric wire clamping piece acts as a stopper in the front-rear direction with respect to the magnetic body. In addition, the wire winding portion on the outer periphery of the magnetic body is safely protected from interference with the outside by an outer clamp member. Moreover, the clamp member holding the magnetic body and the wire winding portion is fixed as a noise filter to the hole or the like of the vehicle panel with a one-touch as a locking portion. Locking of the locking portion to the vehicle panel is performed in the same manner as locking of a normal wire harness.

請求項１記載の発明によれば、ワイヤハーネスの電線でノイズフィルタの一部を構成したことで、従来の銅線でコイル巻き部を形成し、巻き部をハーネスに接続する場合に較べて、接続用の端子や接続工数が不要となり、部品点数の削減と、構造の軽量化と、コスト削減と、部品組付作業の削減と、搭載側の省スペース化が可能となる。また、筒状部の外周の電線巻き部に対して、筒状部の内側に磁性体を正確に位置決めして、ノイズ吸収性を高めることができる。また、磁性体と電線の巻き部とクランプ部材とで成るノイズフィルタを車両等のパネルに作業性良く固定して、ノイズフィルタの振れやそれに起因する電線の摩耗等を防止することができる。また、磁性体を筒状部内にばね片でガタつきなく保持することができる。 According to the invention of claim 1, by forming a part of the noise filter with the electric wire of the wire harness, the coil winding part is formed with a conventional copper wire, and compared with the case where the winding part is connected to the harness, Connection terminals and connection man-hours are no longer required, reducing the number of parts, reducing the weight of the structure, reducing costs, reducing parts assembly work, and saving space on the mounting side. Moreover, a magnetic body can be accurately positioned on the inner side of the tubular portion with respect to the wire winding portion on the outer periphery of the tubular portion, and noise absorption can be improved. In addition, a noise filter composed of a magnetic body, a wire winding portion, and a clamp member can be fixed to a panel of a vehicle or the like with good workability, and vibration of the noise filter and wear of the electric wire due to the noise filter can be prevented. In addition, the magnetic body can be held in the cylindrical portion with a spring piece without rattling.

請求項２記載の発明によれば、ワイヤハーネスの電線でノイズフィルタの一部を構成したことで、従来の銅線でコイル巻き部を形成し、巻き部をハーネスに接続する場合に較べて、接続用の端子や接続工数が不要となり、部品点数の削減と、構造の軽量化と、コスト削減と、部品組付作業の削減と、搭載側の省スペース化が可能となる。また、筒状部の外周の電線巻き部に対して、筒状部の内側に磁性体を正確に位置決めして、ノイズ吸収性を高めることができる。また、磁性体と電線の巻き部とクランプ部材とで成るノイズフィルタを車両等のパネルに作業性良く固定して、ノイズフィルタの振れやそれに起因する電線の摩耗等を防止することができる。また、磁性体を筒状部内にばね片でガタつきなく保持することができる。 According to the invention of claim 2, by forming a part of the noise filter with the electric wire of the wire harness, compared with the case where the coil winding part is formed with a conventional copper wire and the winding part is connected to the harness, Connection terminals and connection man-hours are no longer required, reducing the number of parts, reducing the weight of the structure, reducing costs, reducing parts assembly work, and saving space on the mounting side. Moreover, a magnetic body can be accurately positioned on the inner side of the tubular portion with respect to the wire winding portion on the outer periphery of the tubular portion, and noise absorption can be improved. In addition, a noise filter composed of a magnetic body, a wire winding portion, and a clamp member can be fixed to a panel of a vehicle or the like with good workability, and vibration of the noise filter and wear of the electric wire due to the noise filter can be prevented. In addition, the magnetic body can be held in the cylindrical portion with a spring piece without rattling.

請求項３記載の発明によれば、ワイヤハーネスの電線でノイズフィルタの一部を構成したことで、従来の銅線でコイル巻き部を形成し、巻き部をハーネスに接続する場合に較べて、接続用の端子や接続工数が不要となり、部品点数の削減と、構造の軽量化と、コスト削減と、部品組付作業の削減と、搭載側の省スペース化が可能となる。また、ケースの外周の電線巻き部に対して、ケースの内側に磁性体を正確に位置決めして、ノイズ吸収性を高めることができる。また、磁性体をケース内にばね片でガタつきなく保持することができる。 According to the invention of claim 3, by forming a part of the noise filter with the electric wire of the wire harness, the coil winding part is formed with a conventional copper wire, and compared with the case where the winding part is connected to the harness, Connection terminals and connection man-hours are no longer required, reducing the number of parts, reducing the weight of the structure, reducing costs, reducing parts assembly work, and saving space on the mounting side. Moreover, a magnetic body can be accurately positioned inside the case with respect to the wire winding portion on the outer periphery of the case, so that the noise absorption can be improved. In addition, the magnetic body can be held in the case without play with a spring piece.

請求項４記載の発明によれば、ワイヤハーネスの電線でノイズフィルタの一部を構成したことで、従来の銅線でコイル巻き部を形成し、巻き部をハーネスに接続する場合に較べて、接続用の端子や接続工数が不要となり、部品点数の削減と、構造の軽量化と、コスト削減と、部品組付作業の削減と、搭載側の省スペース化が可能となる。また、巻き部に続く電線をクランプ部材の電線挟持片に固定したことで、巻き部のばらけや離脱が防止され、ノイズの抑制が確実に行われ、ノイズ吸収の信頼性が向上する。また、各電線挟持片で磁性体の前後方向の移動を停止することができる。また、ワイヤハーネスの電線を磁性体に直接巻き付けることで、ノイズ吸収効率を高めることができる。また、電線の巻付け部をクランプ部材で覆って外部との干渉から保護することができる。また、磁性体と電線の巻き部とクランプ部材とで成るノイズフィルタを車両等のパネルに作業性良く固定して、ノイズフィルタの振れやそれに起因する電線の摩耗等を防止することができる。 According to the invention of claim 4, by forming a part of the noise filter with the electric wire of the wire harness, compared with the case where the coil winding part is formed with a conventional copper wire and the winding part is connected to the harness, Connection terminals and connection man-hours are no longer required, reducing the number of parts, reducing the weight of the structure, reducing costs, reducing parts assembly work, and saving space on the mounting side. Moreover, by fixing the electric wire following the winding part to the electric wire clamping piece of the clamp member, the winding part is prevented from being separated or detached, noise is reliably suppressed, and the reliability of noise absorption is improved. Moreover, the movement of the magnetic body in the front-rear direction can be stopped by each wire clamping piece. Moreover, noise absorption efficiency can be improved by winding the electric wire of a wire harness around a magnetic body directly. Moreover, the winding part of an electric wire can be covered with a clamp member, and can be protected from interference with the outside. In addition, a noise filter composed of a magnetic body, a wire winding portion, and a clamp member can be fixed to a panel of a vehicle or the like with good workability, and vibration of the noise filter and wear of the electric wire due to the noise filter can be prevented.

本発明のハーネスのノイズフィルタ構造の一実施形態を示す斜視図である。It is a perspective view which shows one Embodiment of the noise filter structure of the harness of this invention. （ａ）（ｂ）は図１の実施形態の一変形例を電線の巻き付け順に示す斜視図である。(A) and (b) are perspective views which show the modification of embodiment of FIG. 1 in order of winding of an electric wire. 本発明のハーネスのノイズフィルタ構造の他の実施形態を示す、（ａ）は分解斜視図、（ｂ）は組付状態の斜視図である。The other embodiment of the noise filter structure of the harness of this invention is shown, (a) is an exploded perspective view, (b) is a perspective view of an assembly state. （ａ）は各実施形態における電線固定部の一例を示す斜視図、（ｂ）は他の例を示す正面図である。(A) is a perspective view which shows an example of the electric wire fixing | fixed part in each embodiment, (b) is a front view which shows another example. （ａ）は電線巻付け溝を有する筒状部の一例を示す斜視図、（ｂ）は電線巻付け溝の一例を示す（ａ）のＡ−Ａ相当断面図である。(A) is a perspective view which shows an example of the cylindrical part which has an electric wire winding groove, (b) is AA equivalent sectional drawing of (a) which shows an example of an electric wire winding groove. （ａ）はクランプ部材の筒状部の一例を示す斜視図、（ｂ）はクランプ部材の係止部の変形例を示す斜視図である。(A) is a perspective view which shows an example of the cylindrical part of a clamp member, (b) is a perspective view which shows the modification of the latching | locking part of a clamp member. 本発明のハーネスのノイズフィルタ構造におけるクランプ部材の第一の実施形態を示す分解斜視図である。It is a disassembled perspective view which shows 1st embodiment of the clamp member in the noise filter structure of the harness of this invention. クランプ部材の第二の実施形態を示す斜視図である。It is a perspective view which shows 2nd embodiment of a clamp member. クランプ部材の第三の実施形態を示す、（ａ）は分解斜視図、（ｂ）は正面図である。The third embodiment of a clamp member is shown, (a) is an exploded perspective view and (b) is a front view. クランプ部材の第四の実施形態を示す、（ａ）は開いた状態の斜視図、（ｂ）は閉じた状態の斜視図である。4A and 4B show a fourth embodiment of a clamp member, in which FIG. 5A is a perspective view in an open state, and FIG. 5B is a perspective view in a closed state. クランプ部材の第五の実施形態を示す斜視図である。It is a perspective view which shows 5th embodiment of a clamp member.

図１は、本発明のハーネスのノイズフィルタ構造の一実施形態を示すものである。 FIG. 1 shows an embodiment of a noise filter structure of a harness according to the present invention.

この構造は、円柱状のフェライトコア（磁性体）１と、フェライトコア１を挿入保持する筒状部２と、筒状部２の外周に形成された電線巻付け用の螺旋状の溝部３と、筒状部２の長手方向の前後端に一体に設けられた電線固定部４と、筒状部２の長手方向中央に一体に設けられた係止部５とで成る合成（絶縁）樹脂製のクランプ部材６と、筒状部２の溝部３に沿って螺旋状に配索され、溝部３の前後で各電線固定部４に固定された絶縁被覆電線（以下電線と言う）７とで構成されたものである。 This structure includes a cylindrical ferrite core (magnetic body) 1, a cylindrical portion 2 for inserting and holding the ferrite core 1, and a spiral groove portion 3 for winding an electric wire formed on the outer periphery of the cylindrical portion 2. A synthetic (insulating) resin made of a wire fixing portion 4 integrally provided at the longitudinal front and rear ends of the cylindrical portion 2 and a locking portion 5 integrally provided at the longitudinal center of the cylindrical portion 2 And an insulation-coated electric wire (hereinafter referred to as an electric wire) 7 that is spirally routed along the groove portion 3 of the cylindrical portion 2 and fixed to the electric wire fixing portions 4 before and after the groove portion 3. It has been done.

筒状部２は断面円形の外周面と同心に、フェライトコア１を挿入するための断面円形の貫通した孔部８を有している。筒状部２の外周の溝部３は、中央部２ａを除く前半と後半とに狭ピッチで等間隔に形成され、中央部２ａにおいて係止部５を避けて広ピッチで形成されている。本例の電線巻付け用の溝部３は電線７の外径よりも若干大きな径で断面略半円状に形成されている。 The cylindrical portion 2 has a hole 8 having a circular cross section for inserting the ferrite core 1 concentrically with the outer peripheral surface having a circular cross section. The groove portions 3 on the outer periphery of the cylindrical portion 2 are formed at equal intervals at a narrow pitch in the first half and the second half excluding the central portion 2a, and are formed at a wide pitch while avoiding the locking portions 5 in the central portion 2a. The wire winding groove 3 of this example is formed in a substantially semicircular cross section with a diameter slightly larger than the outer diameter of the wire 7.

なお、溝部３を半円よりも深く形成して溝部３内に電線７を完全に（外部への電線７の突出なく）収容することも可能である。また、溝部３を電線７の外径と同じ径ないし若干小さい径で形成し、溝部３内に電線７を押し込んで固定させることも可能である。溝部３の始端と終端との二箇所で溝部３を電線７の外径と同じ径ないし若干小さい径で形成して、電線７を部分的に固定させることも可能である。電線７の螺旋状の巻付け部（コイル巻き部）を符号７ａで示す。 In addition, it is also possible to form the groove part 3 deeper than a semicircle and completely accommodate the electric wire 7 in the groove part 3 (without protruding the electric wire 7 to the outside). It is also possible to form the groove portion 3 with the same diameter as the outer diameter of the electric wire 7 or a slightly smaller diameter and push the electric wire 7 into the groove portion 3 to be fixed. It is also possible to fix the electric wire 7 partially by forming the groove 3 with the same diameter as the outer diameter of the electric wire 7 or slightly smaller than the outer diameter of the electric wire 7 at two places, the starting end and the terminal end of the groove 3. A spiral winding portion (coil winding portion) of the electric wire 7 is denoted by reference numeral 7a.

前後端の電線固定部４は、筒状部２の前後端に続く水平な板部９と、板部９の上面に立設された電線挟持片１０とで構成され、挟持片１０は中央に電線圧入用のスリット１１を有している。 The wire fixing portion 4 at the front and rear ends is composed of a horizontal plate portion 9 following the front and rear ends of the tubular portion 2 and a wire holding piece 10 erected on the upper surface of the plate portion 9. The holding piece 10 is at the center. It has a slit 11 for wire press-fitting.

中央の係止部５は既存の係止クリップであり、下向きの皿状のばねリップ１２と、ばねリップ１２の中央から垂下された一対の可撓性の爪部１３とで構成されている。爪部１３が車両のパネル１４の孔１５に挿入され、ばねリップ１２がパネル１４の上面に弾接して、孔１５への爪部１３の係合を上下のガタつきなく行わせる。 The central locking portion 5 is an existing locking clip, and includes a downward-facing dish-shaped spring lip 12 and a pair of flexible claws 13 hanging from the center of the spring lip 12. The claw portion 13 is inserted into the hole 15 of the panel 14 of the vehicle, and the spring lip 12 is brought into elastic contact with the upper surface of the panel 14 so that the engagement of the claw portion 13 with the hole 15 can be performed without up and down play.

フェライトコア１は筒状部２の孔部８内に例えば圧入ないし接着剤等で固定される。フェライトコア１を孔部８内に前後方向移動自在に挿入し、各電線固定部４の挟持片１０をフェライトコア１の前後端に接近させて配置し、挟持片１０でフェライトコア１の移動を阻止するストッパを成すことも可能である。 The ferrite core 1 is fixed in the hole 8 of the cylindrical portion 2 by, for example, press fitting or an adhesive. The ferrite core 1 is inserted into the hole 8 so as to be movable in the front-rear direction, the holding pieces 10 of the respective wire fixing portions 4 are arranged close to the front and rear ends of the ferrite core 1, and the ferrite core 1 is moved by the holding pieces 10. It is also possible to form a stopper to block.

合成樹脂製の挟持片１０又は板部９は板厚方向の可撓性を有し、フェライトコア１を筒状部２内に挿入する際に撓んでフェライトコア１の挿入を許容することが好ましい。電線固定部４を筒状部２とは別体に形成し、フェライトコア１を筒状部２内に挿入した後、筒状部２に電線固定部４を係止手段で係止させることも可能ではある。 It is preferable that the sandwiching piece 10 or the plate portion 9 made of synthetic resin has flexibility in the plate thickness direction and bends when the ferrite core 1 is inserted into the tubular portion 2 to allow the insertion of the ferrite core 1. . The wire fixing portion 4 may be formed separately from the cylindrical portion 2, and after inserting the ferrite core 1 into the cylindrical portion 2, the wire fixing portion 4 may be locked to the cylindrical portion 2 by the locking means. It is possible.

フェライトコア１を筒状部２内に挿入した後、電線７を溝部３に沿って筒状部の外周に螺旋状に巻き付ける。あるいは、溝部３に沿って筒状部２の外周に電線７を巻き付けた後、フェライトコア１を筒状部２内に挿入し、電線７を電線固定部４に固定する。あるいは、溝部３に沿って筒状部２の外周に電線７を巻き付け、電線固定部４に固定した後、板部９を下向きに屈曲させてフェライトコア１を筒状部２内に挿入する。 After inserting the ferrite core 1 into the cylindrical portion 2, the electric wire 7 is spirally wound around the outer periphery of the cylindrical portion along the groove portion 3. Or after winding the electric wire 7 around the outer periphery of the cylindrical part 2 along the groove part 3, the ferrite core 1 is inserted into the cylindrical part 2, and the electric wire 7 is fixed to the electric wire fixing part 4. Or after winding the electric wire 7 around the outer periphery of the cylindrical part 2 along the groove part 3 and fixing it to the electric wire fixing part 4, the plate part 9 is bent downward and the ferrite core 1 is inserted into the cylindrical part 2.

何れの場合でも、電線７は溝部３に沿って正しいピッチと巻き数で簡単且つ確実に筒状部２に巻き付けられる。電線７はワイヤハーネス製造工程においても溝部３に沿って誰でも簡単且つ確実に巻き付けることができる。電線７の巻き数が多いほど、減衰効果が高まり、ノイズが除去されるが、ノイズに応じたピッチと巻き数を溝部３によって簡単且つ確実に得ることができる。 In any case, the electric wire 7 is easily and reliably wound around the tubular portion 2 with the correct pitch and the number of turns along the groove portion 3. Anyone can easily and reliably wind the electric wire 7 along the groove portion 3 in the wire harness manufacturing process. As the number of turns of the electric wire 7 increases, the attenuation effect increases and noise is removed. However, the pitch and the number of turns according to the noise can be easily and reliably obtained by the groove portion 3.

電線７はワイヤハーネスの一部（ハーネス）であるので、従来（特許文献２）のようにコイル巻き部をワイヤハーネス（電線）に端子で接続する手間や接続用の端子が不要である。電線７は電線固定部４の挟持片１０のスリット１１に上方から手指等で挿入（圧入係止）することで固定される。これについては後述する。例えば電線７の一方は電気部品や電装品等といった負荷側（図示せず）に接続され、電線７の他方は電源供給側や信号供給側に接続される。 Since the electric wire 7 is a part (harness) of the wire harness, it is unnecessary to connect the coil winding portion to the wire harness (electric wire) with a terminal or a connection terminal as in the prior art (Patent Document 2). The electric wire 7 is fixed by being inserted into the slit 11 of the holding piece 10 of the electric wire fixing portion 4 with a finger or the like (press-fit locking) from above. This will be described later. For example, one end of the electric wire 7 is connected to a load side (not shown) such as an electrical component or an electrical component, and the other end of the electric wire 7 is connected to a power supply side or a signal supply side.

フェライトコア１とクランプ部材６とワイヤハーネスの電線７との三部品で簡単且つコンパクトなノイズフィルタ構造が構成される。従来（特許文献１，２）のようなケースや、ケースに代わる収縮チューブ等が不要であるから、構造が簡素化・コンパクト化され、車両側のノイズフィルタ１６の取付部位が省スペース化される。なお、明細書において上下前後左右の方向性は説明の便宜上のものであり、クランプ部材６の取付方向と一致するとは限らない。 A simple and compact noise filter structure is constituted by the three parts of the ferrite core 1, the clamp member 6, and the electric wire 7 of the wire harness. Since conventional cases (Patent Documents 1 and 2) and a shrink tube instead of the case are unnecessary, the structure is simplified and compact, and the mounting site of the noise filter 16 on the vehicle side is saved. . In the specification, the vertical and horizontal directions are for convenience of explanation, and do not always coincide with the mounting direction of the clamp member 6.

図２（ａ）（ｂ）は、クランプ部材６'の筒状部２'の中央ではなく一端部に係止部５を一体に設けた実施形態を示すものである。その他の構成は図１の実施形態と同様であるので、同じ構成部分には同じ符号を付して詳細な説明を省略する。 2 (a) and 2 (b) show an embodiment in which the locking portion 5 is integrally provided at one end rather than the center of the cylindrical portion 2 'of the clamp member 6'. Since the other configuration is the same as that of the embodiment of FIG. 1, the same components are denoted by the same reference numerals and detailed description thereof is omitted.

図２（ａ）の如く、筒状部２'の前後両端に電線固定部４'，４が一体に設けられ、一方の電線固定部４'の水平な板部９'の下面（裏面）に係止部５であるばねリップ１２とその中央の爪部１３とが一体に設けられている。一方の板部９'は他方の板部９よりも係止部５に合わせて幅広に形成されている。板部９'を下向きに押して爪部１３をパネル１４（図１）の孔１５にスムーズに挿入可能である。中央に係止部５がないので、筒状部２'の外周の溝部３は全長に渡って等ピッチで形成されている。 As shown in FIG. 2 (a), wire fixing portions 4 'and 4 are integrally provided at both front and rear ends of the cylindrical portion 2', and on the lower surface (back surface) of the horizontal plate portion 9 'of one of the wire fixing portions 4'. A spring lip 12 that is the locking portion 5 and a claw portion 13 at the center thereof are integrally provided. One plate portion 9 ′ is formed wider than the other plate portion 9 in accordance with the locking portion 5. The claw portion 13 can be smoothly inserted into the hole 15 of the panel 14 (FIG. 1) by pressing the plate portion 9 ′ downward. Since there is no locking part 5 in the center, the groove part 3 on the outer periphery of the cylindrical part 2 'is formed at an equal pitch over the entire length.

図２（ａ）は、電線８を溝部３に沿って筒状部２'の外周に巻き付けている途中の状態であり、電線７は巻付け始端側の電線固定部４に固定され、その状態で溝部３に滑りなく作業性良く巻き付けられる。これは図１の実施形態においても同様である。フェライトコア１は予め筒状部２'内に挿入されている。図２（ｂ）の如く、電線７を螺旋状に巻き終わった後、巻付け終端側の電線固定部４'に固定する。電線７の巻き部を符号７ａで示す。 FIG. 2A shows a state where the electric wire 8 is being wound around the outer periphery of the cylindrical portion 2 ′ along the groove portion 3, and the electric wire 7 is fixed to the electric wire fixing portion 4 on the winding start end side. Thus, it is wound around the groove portion 3 with good workability without slipping. The same applies to the embodiment of FIG. The ferrite core 1 is inserted in the cylindrical portion 2 ′ in advance. As shown in FIG. 2B, after the electric wire 7 has been spirally wound, the electric wire 7 is fixed to the electric wire fixing portion 4 ′ on the winding end side. The winding part of the electric wire 7 is shown with the code | symbol 7a.

図３（ａ）（ｂ）は、本発明のハーネスのノイズフィルタ構造の他の実施形態を示すものである。 3 (a) and 3 (b) show another embodiment of the noise filter structure of the harness of the present invention.

この構造は、図３（ａ）の如く、円柱状のフェライトコア（磁性体）１と、フェライトコア１の外周面に螺旋状に巻き付けられるワイヤハーネスの一部である絶縁被覆電線７と、電線７を巻き付けたフェライトコア１を収容保持する略半円筒状のカバー１９と、カバー１９を薄肉のヒンジ２０で開閉自在に連結した基板部２１と、基板部２１の前後端の上面（表面）に設けられた電線固定部としての挟持片１０と、基板部２１の中央の下面（裏面）に設けられた係止部５とを備えるクランプ部材２２とで構成されている。図１の実施形態と同じ構成部分には同じ符号を付して詳細な説明を省略する。 As shown in FIG. 3A, this structure includes a cylindrical ferrite core (magnetic body) 1, an insulating covered electric wire 7 that is a part of a wire harness that is spirally wound around the outer peripheral surface of the ferrite core 1, and an electric wire. A substantially semi-cylindrical cover 19 that accommodates and holds the ferrite core 1 around which the wire 7 is wound, a substrate part 21 that is connected to the cover 19 by a thin hinge 20, and an upper surface (front surface) of the front and rear ends of the substrate part 21. The clamp member 22 includes a holding piece 10 as an electric wire fixing portion provided and a locking portion 5 provided on the lower surface (back surface) at the center of the substrate portion 21. The same components as those in the embodiment of FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted.

図１の実施形態ではクランプ部材６に電線７を巻き付けたのに対し、図３の実施形態ではフェライトコア１に電線７を巻き付けている。電線７はフェライトコア１の外周面に接着剤等で固定される。フェライトコア１の外周面に螺旋状の電線巻付け用の溝部（３）を設けることも可能である。 In the embodiment of FIG. 1, the electric wire 7 is wound around the clamp member 6, whereas in the embodiment of FIG. 3, the electric wire 7 is wound around the ferrite core 1. The electric wire 7 is fixed to the outer peripheral surface of the ferrite core 1 with an adhesive or the like. It is also possible to provide a helical wire winding groove (3) on the outer peripheral surface of the ferrite core 1.

カバー１９は開閉先端側に係止部として例えば係止孔２３を有し、水平な基板部２１に係合部として係合突起２４を有している。カバー１９の内面側に電線付きのフェライトコア１を収容し、カバー１９を閉止することで、カバー１９の内面と基板部２１の上面との間に電線付きのフェライトコア１が挟持固定される。フェライトコア１における電線７の巻き部７ａに続く前後の真直部分７ｂを基板部２１の前後の挟持片１０のスリット１１内に上方から挿入固定させる。 The cover 19 has, for example, a locking hole 23 as a locking portion on the opening / closing front end side, and has an engaging projection 24 as an engaging portion on the horizontal substrate portion 21. The ferrite core 1 with electric wires is accommodated on the inner surface side of the cover 19, and the cover 19 is closed, whereby the ferrite core 1 with electric wires is sandwiched and fixed between the inner surface of the cover 19 and the upper surface of the substrate portion 21. The straight portions 7b before and after the winding portion 7a of the electric wire 7 in the ferrite core 1 are inserted and fixed from above into the slits 11 of the holding pieces 10 before and after the substrate portion 21.

カバー１９と基板部２１との間に電線付きのフェライトコア１を前後方向移動自在に収容した場合は、前後の挟持片１０がフェライトコア１に対するストッパとして作用する。係止部５の爪１３をパネル１４（図１）の孔１５に挿入係止させ、ばねリップ１２をパネル１４の上面に弾接させる。 When the ferrite core 1 with an electric wire is accommodated between the cover 19 and the substrate portion 21 so as to be movable in the front-rear direction, the front and rear clamping pieces 10 act as a stopper for the ferrite core 1. The claw 13 of the locking portion 5 is inserted and locked into the hole 15 of the panel 14 (FIG. 1), and the spring lip 12 is elastically contacted with the upper surface of the panel 14.

従来（特許文献２）の断面円形のケースに較べて基板部２１が平坦であるので、構造がコンパクト化・省スペース化される。また、電線７が前後の電線固定部１０に固定されることで、フェライトコア１からの電線７のコイル巻き部（巻付け部）７ａの離脱が防止される。また、電線７がワイヤハーネスの一部であり、電線固定部１０をカバー１９で覆う必要がないので、従来（特許文献２）のケースに較べてカバー１９が小型化・省スペース化される。 Since the substrate portion 21 is flatter than a conventional case having a circular cross section, the structure can be made compact and space-saving. Further, by fixing the electric wire 7 to the front and rear electric wire fixing portions 10, the coil winding portion (winding portion) 7 a of the electric wire 7 from the ferrite core 1 is prevented from being detached. Moreover, since the electric wire 7 is a part of a wire harness and it is not necessary to cover the electric wire fixing | fixed part 10 with the cover 19, the cover 19 is reduced in size and space-saving compared with the conventional case (patent document 2).

また、図１，図２の実施形態においても同様であるが、車両によるノイズ評価等に基づいて、ワイヤハーネスの電線７へのコイル巻き部７ａの追加（形成）や削除（形成せず）を容易に行うことができる。特に、ワイヤハーネスのクランプ固定位置（パネル孔１５）を流用することで、車両への電線７のコイル巻き部７ａの設定（追加）を容易に行うことができる。また、上記した各ノイズフィルタ構造はワイヤハーネスの製造工程において作業者又は簡易治具により簡単に生産することができる。 The same applies to the embodiment of FIGS. 1 and 2, but addition (formation) and deletion (not formation) of the coil winding portion 7a to the electric wire 7 of the wire harness based on noise evaluation or the like by the vehicle. It can be done easily. In particular, by using the clamp fixing position (panel hole 15) of the wire harness, setting (addition) of the coil winding portion 7a of the electric wire 7 to the vehicle can be easily performed. Each noise filter structure described above can be easily produced by an operator or a simple jig in the manufacturing process of the wire harness.

図４（ａ）は、上記各実施形態における電線固定部である挟持片１０の一例を示すものであり、左右一対の挟持片部１０ａの高さ方向中間部の内面にスリット１１内に突出する傾斜状の一対の突起１０ｂが設けられ、電線７は上方から突起１０ｂ間に挿入され、突起１０ｂを乗り越しつつ係止片部１０ａを外向きに開いて、突起１０ｂの下側に係合し、突起１０ｂで抜け出しを阻止されつつ挟持片部１０ａの内面で径方向に弾性的に押されて挟持される。 FIG. 4A shows an example of the clamping piece 10 that is the electric wire fixing portion in each of the above embodiments, and projects into the slit 11 on the inner surface of the intermediate portion in the height direction of the pair of left and right clamping piece portions 10a. A pair of inclined protrusions 10b are provided, the electric wire 7 is inserted between the protrusions 10b from above, the locking piece 10a is opened outwardly over the protrusions 10b, and engaged with the lower side of the protrusions 10b. While being prevented from coming off by the protrusion 10b, the inner surface of the holding piece 10a is elastically pressed and held in the radial direction.

図４（ｂ）の如く、一対の突起１０ｂに代えて一つの斜め下向きの可撓性の係止片１０ｃを設け、電線７を係止片１０ｃを乗り越えてスリット１１内に挿入して左右の挟持片部１０ａで挟持固定させることも可能である。何れの場合も、電線７を挟持片１０で固定することで、筒状部２からの電線巻付け部７ａの離脱が確実に防止される。 As shown in FIG. 4 (b), instead of the pair of protrusions 10b, one diagonally downward flexible locking piece 10c is provided, and the electric wire 7 is passed over the locking piece 10c and inserted into the slit 11 so that the right and left It is also possible to clamp and fix with the clamping piece 10a. In any case, by fixing the electric wire 7 with the sandwiching piece 10, the detachment of the electric wire winding portion 7a from the tubular portion 2 is reliably prevented.

図５（ａ）（ｂ）は、図１，図２の実施形態におけるクランプ部材６の筒状部２の電線巻付け用の溝部３の一例を示すものである。図５（ｂ）の断面図の如く、溝部３は入口３ａが狭く、内部が広く形成され、狭い入口３ａから溝部３内に押し込まれた電線７は、狭い入口３ａによって離脱が防止され、筒状部２における電線巻き部７ａの位置決め性と筒状部２への電線７の巻付け作業性が向上する。図５において電線固定部４は図示を省略している。 FIGS. 5A and 5B show an example of the wire winding groove portion 3 of the tubular portion 2 of the clamp member 6 in the embodiment of FIGS. 1 and 2. As shown in the cross-sectional view of FIG. 5B, the groove 3 has a narrow inlet 3a and a wide inside, and the electric wire 7 pushed into the groove 3 from the narrow inlet 3a is prevented from being separated by the narrow inlet 3a. The positioning property of the wire winding portion 7a in the shaped portion 2 and the workability of winding the wire 7 around the tubular portion 2 are improved. In FIG. 5, the electric wire fixing portion 4 is not shown.

図６（ａ）（ｂ）は、図１の実施形態における係止部５の一変形例を示すものである。この係止部５'は、図６（ａ）の如く筒状部２とは別体に形成され、筒状部２の内側にフェライトコア１を挿入し、筒状部２の外周に電線７を巻いた後、図６（ｂ）の如く筒状部２の外周側にバンド２５等で締付固定される。係止部５'は、バンド２５と、バンド２５の長手方向中間部に一体に設けられたばねリップ１２とその中心の爪部１３と、バンド２５の基端に一体に設けられたバンド挿入係止部（図示せず）とで構成される。図６において、電線固定部４や電線巻付け用の溝部３は図示を省略している。 6 (a) and 6 (b) show a modification of the locking portion 5 in the embodiment of FIG. As shown in FIG. 6A, the locking portion 5 ′ is formed separately from the tubular portion 2, and the ferrite core 1 is inserted inside the tubular portion 2, and the electric wire 7 is disposed on the outer periphery of the tubular portion 2. After being wound, it is fastened and fixed to the outer peripheral side of the cylindrical portion 2 with a band 25 or the like as shown in FIG. The locking portion 5 ′ includes a band 25, a spring lip 12 integrally provided at the longitudinal intermediate portion of the band 25, a claw portion 13 at the center thereof, and a band insertion locking integrally provided at the base end of the band 25. Part (not shown). In FIG. 6, the wire fixing portion 4 and the wire winding groove 3 are not shown.

図７は、図１の実施形態において、フェライトコア１をクランプ部材２６の有底の筒状部２７内に挿入し、キャップ２８で筒状部２７の入口２７ａを閉じて、筒状部２７内にフェライトコア１を収容固定する例を示すものである。本例のキャップ２８は、フェライトコア１の端部を押さえるばね片２８ａと、筒状部２７の入口側の切欠２７ｂに係合する突起２８ｂとを有している。図７において、電線固定部４や電線巻付け用の溝部３は図示を省略している。 7, in the embodiment of FIG. 1, the ferrite core 1 is inserted into the bottomed cylindrical portion 27 of the clamp member 26, the cap 27 closes the inlet 27 a of the cylindrical portion 27, and the cylindrical portion 27 An example in which the ferrite core 1 is accommodated and fixed is shown. The cap 28 of this example includes a spring piece 28 a that holds the end of the ferrite core 1 and a protrusion 28 b that engages with a notch 27 b on the inlet side of the cylindrical portion 27. In FIG. 7, the wire fixing portion 4 and the wire winding groove 3 are not shown.

図８は、図１の実施形態において、合成樹脂製のクランプ部材２９の筒状部３０内にフェライトコア１をインサート成形で隙間やガタ付きなく完全固定した例を示すものである。図８において、電線固定部４や電線巻付け用の溝部３は図示を省略している。 FIG. 8 shows an example in which, in the embodiment of FIG. 1, the ferrite core 1 is completely fixed in the cylindrical portion 30 of the synthetic resin clamp member 29 by insert molding without gaps or backlash. In FIG. 8, the wire fixing portion 4 and the wire winding groove 3 are not shown.

図９（ａ）（ｂ）は、図１の実施形態の筒状部２に代えてスリット状の上部開口３１ａを有する弾性の筒状部３１を用い、筒状部３１の前後端に、フェライトコア１に対するストッパとしてのばね片３２を設け、上部開口３１ａからフェライトコア１を筒状部３１内に挿入し、筒状部３１の縮径方向のばね力でフェライトコア１を固定し、且つ前後のばね片３２でフェライトコア１を前後方向に固定し、筒状部３１の外周に電線７を螺旋状に巻回したクランプ部材３３の例を示すものである。図９において、電線固定部４や電線巻付け用の溝部３は図示を省略している。 9 (a) and 9 (b) use an elastic cylindrical portion 31 having a slit-like upper opening 31a instead of the cylindrical portion 2 of the embodiment of FIG. A spring piece 32 is provided as a stopper for the core 1, the ferrite core 1 is inserted into the cylindrical portion 31 from the upper opening 31 a, and the ferrite core 1 is fixed by the spring force in the reduced diameter direction of the cylindrical portion 31. An example of a clamp member 33 in which the ferrite core 1 is fixed in the front-rear direction by the spring piece 32 and the electric wire 7 is spirally wound around the outer periphery of the cylindrical portion 31 is shown. In FIG. 9, the wire fixing portion 4 and the wire winding groove 3 are not shown.

図１０（ａ）（ｂ）は、図１の実施形態の筒状部２や図３の実施形態のカバー１９と基板部２１に代えて、二分割式の円筒状のケース３４を用い、ケース３４のベース部３４ａ内にフェライトコア１を収容保持し、ケース３４のカバー部３４ｂにフェライトコア押さえ用のばね片３５と、ベース部３４ａの係止突起３６に対する係合枠片３７とを設け、カバー部３４ｂを閉じて、ケース３４の外周に電線７を螺旋状に巻き付けたクランプ部材３８の例を示すものである。電線７はケース３４の外周に代えてフェライトコア１の外周に巻き付けてもよい。図１０において、電線固定部４や電線巻付け用の溝部３は図示を省略している。 10 (a) and 10 (b) use a two-part cylindrical case 34 instead of the cylindrical portion 2 of the embodiment of FIG. 1 and the cover 19 and the substrate portion 21 of the embodiment of FIG. The ferrite core 1 is accommodated and held in the base portion 34a of 34, and a spring piece 35 for holding the ferrite core is provided on the cover portion 34b of the case 34, and an engagement frame piece 37 for the locking projection 36 of the base portion 34a is provided. An example of a clamp member 38 in which the cover portion 34b is closed and the electric wire 7 is spirally wound around the outer periphery of the case 34 is shown. The electric wire 7 may be wound around the outer periphery of the ferrite core 1 instead of the outer periphery of the case 34. In FIG. 10, the wire fixing portion 4 and the wire winding groove 3 are not shown.

図１１は、図１０の例と同様（ばね片はない）のケース３４を用い、ケース内に、電線７を巻き付けたフェライトコア１を収容し、ケース内にホットメルト樹脂やポッティング樹脂といった樹脂材３９を注入してフェライトコア１を保持固定したクランプ部材４０の例を示すものである。 11 uses a case 34 similar to the example of FIG. 10 (no spring piece), and the ferrite core 1 around which the electric wire 7 is wound is accommodated in the case, and a resin material such as hot melt resin or potting resin is accommodated in the case. The example of the clamp member 40 which inject | poured 39 and hold | maintained and fixed the ferrite core 1 is shown.

なお、上記各実施形態においては、係止部５でクランプ部材６，６'，２２をパネル１４に固定したが、係止部５に代えてボルト挿通用のブラケット（図示せず）やスライド固定用のスルーブラケット等（図示せず）をクランプ部材６，６'，２２に設けたり、あるいは係止部５等を排除して、ワイヤハーネスの他の電線と共にクランプ部材６，６'，２２を配索してテープ巻き等でパネル１４等に固定することも可能である。 In the above embodiments, the clamp members 6, 6 ′ and 22 are fixed to the panel 14 by the locking portion 5. However, instead of the locking portion 5, a bolt insertion bracket (not shown) or slide fixing is used. A through bracket or the like (not shown) is provided on the clamp members 6, 6 ′, 22, or the locking members 5 are excluded, and the clamp members 6, 6 ′, 22 are attached together with other wires of the wire harness. It is also possible to route the cable and fix it to the panel 14 or the like by tape winding or the like.

本発明のハーネスのノイズフィルタ構造は、例えば自動車のワイヤハーネスの一部として車両内の電気部品等のノイズを吸収するために利用することができる。 The noise filter structure of the harness according to the present invention can be used, for example, as a part of a wire harness of an automobile to absorb noise of an electrical component in the vehicle.

１フェライトコア（磁性体）
５係止部
７電線
７ａ巻き部
１０電線挟持片
１４パネル
１９カバー
２１基板部
２２，２６，３３，３８クランプ部材
２３係止孔（係止部）
２４係合突起（係合部）
２７，３１筒状部
２８キャップ
２８ａ，３２，３５ばね片
３４ケース
３４ａベース部
３４ｂカバー部 1 Ferrite core (magnetic material)
DESCRIPTION OF SYMBOLS 5 Locking part 7 Electric wire 7a Winding part 10 Electric wire clamping piece 14 Panel 19 Cover 21 Board | substrate part 22,26,33,38 Clamp member 23 Locking hole (locking part)
24 engagement protrusion (engagement part)
27, 31 Tubular part 28 Cap 28a, 32, 35 Spring piece 34 Case 34a Base part 34b Cover part

Claims

A wire winding portion of the wire harness is spirally arranged on the outer peripheral side of the bottomed cylindrical portion of the insulating clamp member, and a magnetic body is inserted into the cylindrical portion from the inlet of the cylindrical portion. The cap is closed, the cap has a spring piece for pressing the end of the magnetic body, and the cylindrical portion is provided with a locking portion that engages with the hole of the panel on the mounting side. The noise filter structure of the harness.

The elastic cylindrical portion of the insulating clamp member has a slit-like opening in the longitudinal direction, and each spring piece is provided inwardly at the front and rear ends of the cylindrical portion, and from the opening to the inside of the cylindrical portion A magnetic body is inserted into the cylindrical portion, and the magnetic body is fixed by the spring force in the diameter reducing direction of the cylindrical portion and the spring pieces, and the wire winding portion of the wire harness is spirally formed on the outer peripheral side of the cylindrical portion. A harness noise filter structure, wherein the cylindrical portion is provided with a locking portion that engages with a hole of the panel on the mounting side.

A cylindrical case is formed by the base portion and the cover portion of the insulating clamp member, a magnetic body is accommodated in the base portion, and a spring piece for holding the magnetic body is provided in the cover portion, and the base portion A harness noise filter structure, wherein the cover portion is locked by the locking portion and the engaging portion, and the winding portion of the wire harness of the wire harness is spirally arranged on the outer peripheral side of the case.

A cover is connected to one side of the substrate portion of the insulating clamp member and is provided so as to be openable and closable, and an engagement portion for engaging a locking portion on the rotating tip side of the cover is provided on the other side of the substrate portion. Each wire holding piece is provided on the front and back of the substrate portion, the wire holding piece has a protrusion or a locking piece for preventing the electric wire from being removed on the inner side, and the winding portion of the electric wire of the wire harness on the outer peripheral side of the magnetic body Are arranged in a spiral, the magnetic body and the winding portion are accommodated inside the cover, and each wire holding piece is positioned as a stopper against the magnetic body facing the front and rear ends of the magnetic body, Noise of the harness, wherein the electric wire following the start and end of the winding portion is fixed to the electric wire holding piece, and a locking portion is provided on the plate portion to be engaged with a hole of the panel on the attachment side. Filter structure.