JP2007049072A - Choke coil - Google Patents

Choke coil Download PDF

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Publication number
JP2007049072A
JP2007049072A JP2005234332A JP2005234332A JP2007049072A JP 2007049072 A JP2007049072 A JP 2007049072A JP 2005234332 A JP2005234332 A JP 2005234332A JP 2005234332 A JP2005234332 A JP 2005234332A JP 2007049072 A JP2007049072 A JP 2007049072A
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JP
Japan
Prior art keywords
bobbin
choke coil
divided
pedestal
core
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Pending
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JP2005234332A
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Japanese (ja)
Inventor
Michiyasu Yamauchi
亨康 山内
Minoru Sato
稔 佐藤
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Tokin Corp
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NEC Tokin Corp
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Priority to JP2005234332A priority Critical patent/JP2007049072A/en
Publication of JP2007049072A publication Critical patent/JP2007049072A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a choke coil capable of improving a fixing workability during manufacturing and reducing a beat noise. <P>SOLUTION: In the choke coil constituted by inserting a rubber sheet 14 in a clearance between a divided bobbin 3 and a magnetic leg of a closed magnetic circuit core 1, a portion between the divided type bobbin 3 and a seating 2 is fixed by inserting an upper part of the pin terminal 5 of the seating 2 provided with the pin terminal 5 for fixing this divided bobbin 3 into near a terminal of the divided bobbin 3 which doesn't influence any winding. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、民生用および産業用電子機器等に使用されるチョークコイルに関し、特にコモンモード用に好適なチョークコイルに関する。   The present invention relates to a choke coil used for consumer and industrial electronic devices, and more particularly to a choke coil suitable for a common mode.

コモンモード用などのチョークコイルは、スイッチング電源等の電子機器の電源ラインに挿入され電磁ノイズを抑制する電子部品として使用されている。従来その構造から、たとえば、コア、分割型ボビンおよび台座を一体に固定するため、それらを互いに固定できる箇所に接着剤が塗布され固定用に用いられていた。   A choke coil for a common mode or the like is used as an electronic component that is inserted into a power supply line of an electronic device such as a switching power supply to suppress electromagnetic noise. Conventionally, from the structure, for example, in order to fix the core, the split bobbin, and the pedestal integrally, an adhesive is applied to a place where they can be fixed to each other and used for fixing.

そのとき、接着剤塗付による、接着剤の乾燥、垂れ、不要部分への付着などにより作業性の向上には限界があった。また接着剤は温度や湿度による使用環境条件により硬化状態が異なり管理が容易でないという状況があった。   At that time, there was a limit to improvement in workability due to drying of the adhesive, dripping, adhesion to unnecessary portions, etc. due to adhesive application. In addition, the adhesive has a cured state that varies depending on the environmental conditions of use due to temperature and humidity, and is difficult to manage.

他に、接着剤を構成要素間の固定のために用いたコモンモードチョークコイルの例として、特許文献1、特許文献2などに開示された技術がある。   In addition, as examples of common mode choke coils in which an adhesive is used for fixing between components, there are techniques disclosed in Patent Document 1, Patent Document 2, and the like.

特開2000−331851号公報JP 2000-331851 A 特開2000−269050号公報JP 2000-269050 A

すでに一部説明したように従来の接着剤固定によるコモンモードチョークコイルでは、接着工程での接着剤の垂れ、不要部分への付着などを防止すること、また、作業後の接着剤の剥がれ、欠け、ひび割れ等の発生を防止することが必要であり、作業性および製品仕上がり面で問題があった。   As already explained in part, the conventional common mode choke coil with adhesive fixing prevents the adhesive from dripping or adhering to unnecessary parts in the bonding process, and the adhesive is peeled off or chipped after work. It is necessary to prevent the occurrence of cracks and the like, and there are problems in terms of workability and product finish.

また、従来のコモンモード用などのチョークコイルでは電源ライン等で用いたとき、うなり音が発生し、その低減は困難であった。   Further, in a conventional choke coil for common mode, when used in a power supply line or the like, a roaring sound is generated and it is difficult to reduce it.

この状況にあって、本発明の技術的課題は、製造時の固定の作業性を向上させ、うなり音を低減可能なチョークコイルを提供することにある。   In this situation, the technical problem of the present invention is to provide a choke coil that can improve the workability of fixing at the time of manufacture and can reduce beat noise.

本発明のチョークコイルは、4辺からなるロ字形のコア、台座および分割ボビンを有するチョークコイルにおいて、前記台座に植設されたピン端子の上部を前記分割ボビンの端部付近に差し込むことにより前記分割ボビンと前記台座を固定し、前記台座と、前記分割ボビンの内側にある前記コアの一辺に対向し前記分割型ボビンの外側に位置する前記コアの他辺との間には弾力性および振動吸収性を有するシートを装着したことを特徴とする。   The choke coil of the present invention is a choke coil having a square core having four sides, a pedestal, and a divided bobbin, and by inserting an upper portion of a pin terminal implanted in the pedestal into the vicinity of an end of the divided bobbin. The divided bobbin and the pedestal are fixed, and elasticity and vibration are provided between the pedestal and the other side of the core facing the one side of the core inside the divided bobbin and positioned outside the divided bobbin. It is characterized in that an absorbent sheet is attached.

その分割型ボビンは、駆動用の歯車を設けた筒状胴部の両端および中央部に鍔が設置され円筒軸を含む面で2分割できる分割型ボビンであり、閉磁路磁心の磁脚部に緩嵌し、分割型ボビンの鍔間に巻線を施し、その分割型ボビンを、ピン端子を植設した台座に設置しており、その分割型ボビンと閉磁路磁心の磁脚部の隙間にゴムシートなどの弾力性および振動吸収性を有するシートを挿入し両者を固定している。   The split-type bobbin is a split-type bobbin that can be divided into two parts on the surface including the cylindrical shaft with hooks installed at both ends and the center of the cylindrical body provided with a driving gear. Loosely fit, winding between split bobbins, and installing the split bobbins on the pedestal where the pin terminals are implanted, in the gap between the split bobbins and the magnetic legs of the closed magnetic circuit core. A sheet having elasticity and vibration absorption such as a rubber sheet is inserted and both are fixed.

本発明によれば、チョークコイルを構成しているコア、分割型ボビン、台座などを固定するために使用していた接着剤による固定作業を解消することができる。その結果、固定の作業性の向上が可能になり、仕上がり管理が容易になった。   ADVANTAGE OF THE INVENTION According to this invention, the fixing operation | work with the adhesive agent currently used in order to fix the core which comprises the choke coil, a split bobbin, a base, etc. can be eliminated. As a result, fixing workability can be improved, and finishing management becomes easy.

また、弾力性と振動吸収性を有するゴムシートを使用したので、チョークコイルのうなり音を低減する効果がある。   In addition, since a rubber sheet having elasticity and vibration absorption is used, there is an effect of reducing the beat sound of the choke coil.

本発明の一実施の形態でのチョークコイルは、1個のロ字型コア、絶縁物からなる分割型ボビン、巻線と台座(ベース)から構成している。絶縁距離を確保し、ボビンの巻枠を最大限広げるためコアをボビン下方で連続させ、小型化が可能な構造となっている。本品は分割型ボビンと台座を、台座に植設されたピンを分割型ボビンに刺し込むことにより接着剤なしで固定できる構造となっている。更にコアと台座(ベース)の間 にゴムシートなどの弾力性と振動吸収性を有するシートを入れることによりコアと台座(ベース)のがたつきを接着剤なしで抑えることができる構造としたコモンモードチョークコイルである。これらのピンやゴムを用いる構造にすることにより、うなり音の低減を実現できるチョークコイルである。   A choke coil according to an embodiment of the present invention is composed of a single rectangular core, a split bobbin made of an insulator, a winding, and a pedestal (base). In order to secure the insulation distance and to maximize the bobbin winding frame, the core is continuous under the bobbin so that the size can be reduced. This product has a structure in which the split bobbin and pedestal can be fixed without adhesive by inserting the pins implanted in the pedestal into the split bobbin. In addition, a rubber sheet or other elastic and vibration-absorbing sheet is inserted between the core and the pedestal (base) to prevent rattling between the core and the pedestal (base) without using an adhesive. It is a mode choke coil. By using a structure using these pins and rubber, it is a choke coil that can realize a reduction in beat sound.

次に、本実施の形態のチョークコイルを図面に基づいて説明する。   Next, the choke coil of the present embodiment will be described with reference to the drawings.

図1は、本実施の形態のチョークコイルを示し、図1(a)は図1(b)のA-A線で指示した断面図、図1(b)は図1(a)のB-B線で指示した断面図である。   FIG. 1 shows a choke coil according to the present embodiment. FIG. 1 (a) is a cross-sectional view indicated by line AA in FIG. 1 (b), and FIG. It is sectional drawing indicated with the B line.

また図1は分割型ボビン3の軸心の穴7内にロ字形の閉磁路磁心1の一辺の脚部分を組み込み、他方の一辺の脚部分を台座2の下に配置した様子を示し、図1(a)は正面から見た断面図であり、図1(b)は右側面から見た断面図である。   FIG. 1 shows a state in which a leg portion of one side of the closed-shaped magnetic path magnetic core 1 is incorporated in the axial hole 7 of the split bobbin 3 and the leg portion of the other side is arranged under the base 2. 1 (a) is a sectional view seen from the front, and FIG. 1 (b) is a sectional view seen from the right side.

分割型ボビン3は長軸中心面を境にして上下に分割される構造である。また、この分割型ボビン3は、図1に示すように、ロ字型の閉磁路磁心1の一辺の磁脚9に嵌装されると、その分割面の凸凹が結合し、一体となる。   The split bobbin 3 has a structure in which the split bobbin 3 is split up and down with the major axis center plane as a boundary. Further, as shown in FIG. 1, when the divided bobbin 3 is fitted to the magnetic leg 9 on one side of the square closed magnetic path magnetic core 1, the unevenness of the divided surface is combined and integrated.

閉磁路磁心1を軸心に組み込んだ分割型ボビン3は、台座2上の中央部に構成した凹部に回転摺動ができるように組み込まれる。その回転摺動の動力は、分割型ボビン3の筒状胴部8の中央部側面にある鍔の近傍に形成された歯車4を介して、外部から伝達される。   The split bobbin 3 in which the closed magnetic path magnetic core 1 is incorporated in the shaft center is incorporated so as to be able to rotate and slide in a recess formed in the central portion on the base 2. The rotational sliding power is transmitted from the outside through a gear 4 formed in the vicinity of the flange on the side surface of the central portion of the cylindrical body 8 of the split bobbin 3.

すなわち、図1に示す構造で、分割型ボビン3だけを閉磁路磁心1を軸心として、台座2の凹部内を回転摺動させながら巻線をすることで、分割型ボビン3の鍔11a,11bにて分割された左右の巻線部13a,13bに均等に巻線される。このように、コモンモードチョークコイルの2つの巻線が形成され、その端部は押圧により4本のピン端子5に接続される。   That is, in the structure shown in FIG. 1, only the split type bobbin 3 is wound around the closed magnetic path magnetic core 1 while rotating and sliding in the recess of the pedestal 2, so that the flange 11a, The windings are uniformly wound around the left and right winding portions 13a and 13b divided at 11b. Thus, two windings of the common mode choke coil are formed, and the end portions thereof are connected to the four pin terminals 5 by pressing.

図2は図1(a)の部分拡大図であり、図3は図1(b)の部分拡大図である。   2 is a partially enlarged view of FIG. 1 (a), and FIG. 3 is a partially enlarged view of FIG. 1 (b).

図2、図3にコア(閉磁路磁心)1、分割型ボビン3、台座2を固定するためと、うなり防止のために挿入するゴムシート14の配置を示す。このゴムシート14を挿入することでこれまで接着剤で固定されていたコア(閉磁路磁心)1、分割型ボビン3、台座2を接着剤を使うことなく、それぞれ固定できる。ゴムシート14の弾力性がピン端子5と、それを差し込んだ分割型ボビン3の接触部間の固着力を保持させる機能をなすからである。同時に、コアが分割型ボビン3の穴7の中で、動かないように固定する機能をなす。   FIG. 2 and FIG. 3 show the arrangement of the rubber sheet 14 that is inserted to fix the core (closed magnetic path core) 1, the divided bobbin 3, and the pedestal 2 and to prevent beats. By inserting the rubber sheet 14, the core (closed magnetic path magnetic core) 1, the split bobbin 3, and the pedestal 2 that have been fixed with an adhesive can be fixed without using any adhesive. This is because the elasticity of the rubber sheet 14 functions to maintain the fixing force between the pin terminal 5 and the contact portion of the divided bobbin 3 into which the pin terminal 5 is inserted. At the same time, the core functions to be fixed so as not to move in the hole 7 of the split bobbin 3.

その図2、図3に基づいて、分割型ボビン3と台座2を固定するためのピン端子5の分割型ボビン3への差し込み状況を説明する。ピン端子5を分割型ボビン3に差し込むことで、これまで接着剤で実施されていた分割型ボビン3、台座2を接着剤を使うことなしで固定できる。なお、図2と図3は断面図であるが、ピン端子5の台座2に埋め込まれた部分および分割型ボビン3に差し込まれた部分については破線で表示した。また台座2の下側方に設けられた切り欠き溝6についても破線で表示した。   Based on FIGS. 2 and 3, the insertion state of the pin terminal 5 for fixing the divided bobbin 3 and the base 2 to the divided bobbin 3 will be described. By inserting the pin terminal 5 into the split-type bobbin 3, the split-type bobbin 3 and the pedestal 2 that have been implemented with an adhesive can be fixed without using an adhesive. 2 and 3 are cross-sectional views, but the portion embedded in the base 2 of the pin terminal 5 and the portion inserted into the split bobbin 3 are indicated by broken lines. Further, the notch groove 6 provided on the lower side of the base 2 is also indicated by a broken line.

このように、ゴムシート14とピン端子5を接着剤の代わりに用いることにより従来のチョークコイルの製造工程と比べて固定の作業性が向上し、製品仕上がりの面で優れるチョークコイルが得られる。   Thus, by using the rubber sheet 14 and the pin terminal 5 instead of the adhesive, the fixing workability is improved as compared with the conventional choke coil manufacturing process, and a choke coil excellent in terms of product finish can be obtained.

本発明の一実施の形態でのチョークコイルを示し、図1(a)は図1(b)のA-A線で指示した断面図、図1(b)は図1(a)のB-B線で指示した断面図。1 shows a choke coil according to an embodiment of the present invention, in which FIG. 1A is a cross-sectional view indicated by the line AA in FIG. 1B, and FIG. Sectional drawing indicated by B line. 図1(a)の部分拡大図。The elements on larger scale of Fig.1 (a). 図1(b)の部分拡大図。The elements on larger scale of FIG.1 (b).

符号の説明Explanation of symbols

1 閉磁路磁心
2 台座
3 分割型ボビン
4 歯車
5 ピン端子
6 切り欠き溝
7 穴
8 筒状胴部
9 磁脚
11a,11b 鍔
13a,13b 巻線部
14 ゴムシート
DESCRIPTION OF SYMBOLS 1 Closed magnetic path magnetic core 2 Base 3 Division | segmentation type bobbin 4 Gear 5 Pin terminal 6 Notch groove 7 Hole 8 Cylindrical trunk | drum 9 Magnetic leg 11a, 11b 鍔 13a, 13b Winding part 14 Rubber sheet

Claims (1)

4辺からなるロ字形のコア、台座および分割ボビンを有するチョークコイルにおいて、前記台座に植設されたピン端子の上部を前記分割ボビンの端部付近に差し込むことにより前記分割ボビンと前記台座を固定し、前記台座と、前記分割ボビンの内側にある前記コアの一辺に対向し前記分割型ボビンの外側に位置する前記コアの他辺との間には弾力性および振動吸収性を有するシートを装着したことを特徴とするチョークコイル。   In a choke coil having a four-sided rectangular core, a pedestal, and a divided bobbin, the upper part of the pin terminal implanted in the pedestal is inserted near the end of the divided bobbin to fix the divided bobbin and the pedestal. A seat having elasticity and vibration absorption is mounted between the pedestal and the other side of the core facing the one side of the core on the inner side of the divided bobbin and positioned on the outer side of the divided bobbin. A choke coil characterized by that.
JP2005234332A 2005-08-12 2005-08-12 Choke coil Pending JP2007049072A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005234332A JP2007049072A (en) 2005-08-12 2005-08-12 Choke coil

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Application Number Priority Date Filing Date Title
JP2005234332A JP2007049072A (en) 2005-08-12 2005-08-12 Choke coil

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Publication Number Publication Date
JP2007049072A true JP2007049072A (en) 2007-02-22

Family

ID=37851628

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Application Number Title Priority Date Filing Date
JP2005234332A Pending JP2007049072A (en) 2005-08-12 2005-08-12 Choke coil

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010157626A (en) * 2008-12-27 2010-07-15 Tokyo Parts Ind Co Ltd Line filter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0167708U (en) * 1987-10-24 1989-05-01
JPH1092666A (en) * 1996-09-18 1998-04-10 Fuji Electric Co Ltd Through type chalk coil device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0167708U (en) * 1987-10-24 1989-05-01
JPH1092666A (en) * 1996-09-18 1998-04-10 Fuji Electric Co Ltd Through type chalk coil device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010157626A (en) * 2008-12-27 2010-07-15 Tokyo Parts Ind Co Ltd Line filter

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