JPH0411704A - Coil part - Google Patents

Abstract

PURPOSE:To disperse rotary driving force and improve coil winding efficiency by using a plurality of bobbin pieces divided in a direction parallel to an axial line to constitute an approximately cylindrical bobbin with a side of a core in a closed magnetic circuit form interposed and providing gear parts of the same shape on an outer peripheral face of at least two flanges of a plurality of flanges of these bobbins. CONSTITUTION:A bobbin 1 is constituted of bobbin pieces 1a, 1b which are divided into an upper and a lower sections parallel to an axial line, while flanges 2a to 2c and semicircular grooves 5a, 5b are provided on e pieces, and gear parts 4a to 4c of the same pitch with the same number of teeth are provided on an outer peripheral face of the flanges 2a to 2c. The above mentioned parts are all molded of resin, and grooves 3a, 3b for permitting coil wires to be wound are provided between the flanges 2a and 2b and between the flanges 2b and 2c. The core 10 is made in a shape of using a ferrite, and one of the sides is interposed between the bobbin pieces 1a, 1b and a side 10a is interposed between the grooves 5a, 5b to make an approximately cylindrical bobbin 1. Thus the gear parts 4a to 4c are engaged with a rotary driving gear 11 to have the coil wires 7a, 7b wound.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、コイルタや発振器等の電子回路を構成する際
に用いられるコイル部品に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to coil components used in constructing electronic circuits such as coilers and oscillators.

疋米立扶朱立１１ 従来、チョークコイルとしてボビン分割型のものが種々
提供されている。これは、ボビンを軸線と平行方向に２
分割し、各ボビン片にて閉磁路形状のコアの一辺を挾着
し、略円筒形のボビンを構成し、該ボビンの複数の鍔部
のうちの１つのみを歯車構造とし、この歯車構造をして
いる鍔部に回転駆動歯車を噛合きせて回転力を伝達する
ことにより、ボビンを閉磁路形状のコアの一辺を中心に
回転きせ、コイル線材をボビンの表面に巻回するもので
ある。BACKGROUND ART Conventionally, various types of choke coils that are divided into bobbins have been provided. This moves the bobbin 2 times parallel to the axis.
The core is divided into sections, and one side of the closed magnetic circuit shaped core is clamped between each bobbin piece to form a substantially cylindrical bobbin, and only one of the plurality of flanges of the bobbin is made into a gear structure. By transmitting rotational force by meshing a rotary drive gear with the flange, the bobbin is rotated around one side of the core in the form of a closed magnetic path, and the coil wire is wound around the surface of the bobbin. .

しかし、以上の構成のコイル部品では、コイル線材の巻
回作業時、歯車構造をしている一つの鍔部に回転駆動力
の全部がかかり、該鍔部が回転駆動力に抗する機械的強
度を確保するにはＵＬ認定規格で必要とされる最低厚み
、例えば約０．８ｍｍの３倍程度の厚きが必要であった
。そのため、コイル線材の巻回スペースが狭くなり、大
きなインダクタンスを必要とする場合にはコイル部品の
サイズが大きくなるという問題点を有していた。However, in the coil component with the above configuration, when the coil wire is wound, the entire rotational driving force is applied to one flange having a gear structure, and the flange has the mechanical strength to resist the rotational driving force. In order to ensure this, the minimum thickness required by the UL certification standard, for example about 3 times the thickness of about 0.8 mm, was required. Therefore, the winding space for the coil wire becomes narrow, and when a large inductance is required, the size of the coil component becomes large.

そこで、本発明の課題は、歯車構造をしている鍔部が巻
回作業時にかかる回転駆動力に抗する機械的強度を有し
、かつ、コイル線材の巻回スペースが広いコイル部品を
提供することにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a coil component in which a flange having a gear structure has mechanical strength to withstand the rotational driving force applied during winding work, and has a wide space for winding a coil wire. There is a particular thing.

課題を解決するための手段 以上の課題を解決するため、本発明に係るコイル部品は
、軸線と平行方向に分割された複数のポビン片にて閉磁
路形状のコアの一辺を挾着し、略円筒形のボビンを構成
し、前記ボビンの複数の鍔部のうち少なくとも二つの鍔
部の外周面に同形状の歯部を形成したことを特徴とする
。Means for Solving the Problems In order to solve the above-mentioned problems, the coil component according to the present invention has one side of a closed magnetic circuit shaped core held between a plurality of pobbin pieces divided in a direction parallel to the axis. The present invention is characterized in that the bobbin has a cylindrical shape, and teeth of the same shape are formed on the outer peripheral surfaces of at least two of the plurality of flanges of the bobbin.

作用 以上の構成により、ボビンの複数の鍔部のうち少なくと
も二つの鍔部の外周面に同形状の歯部を形成したため、
巻回作業時の回転駆動力が２箇所以上に分散してボビン
に伝達され、各鍔部にかかる駆動力が小さくなり、各鍔
部に必要ときれる機械的強度が小きくてすむ。Due to the above-described structure, teeth of the same shape are formed on the outer peripheral surfaces of at least two of the plurality of flanges of the bobbin.
The rotational driving force during the winding operation is distributed to two or more locations and transmitted to the bobbin, so that the driving force applied to each collar is reduced, and the mechanical strength required for each collar is small.

実施例 以下、本発明に係るコイル部品の実施例を添付図面に従
って説明する。Embodiments Hereinafter, embodiments of the coil component according to the present invention will be described with reference to the accompanying drawings.

［第１実施例、第１図及び第２図参照］第１図において
、ボビン１は予め軸線と平行方向に上下に２分割された
ボビン片１ａ、　ｌｂからなり、それぞれ樹脂成形した
ものである。このボビン片ｌａ、　ｌｂには鍔部２ａ、
　２ｂ、　２ｃ及び半円形の溝部５ａ、　５ｂが形成さ
れ、鍔部２ａ、　２ｂ、　２ｃの外周面には同一ピッチ
、同一歯数の歯部４ａ、　４ｂ、　４ｃが形成されてい
る。[First embodiment, see FIGS. 1 and 2] In FIG. 1, a bobbin 1 consists of bobbin pieces 1a and lb, which are divided into upper and lower halves in a direction parallel to the axis, each of which is molded with resin. . These bobbin pieces la and lb have a flange 2a,
2b, 2c and semicircular grooves 5a, 5b are formed, and tooth portions 4a, 4b, 4c having the same pitch and the same number of teeth are formed on the outer peripheral surface of the collar portions 2a, 2b, 2c.

鍔部２ａ−２ｂ間、鍔部２ｂ−２ｃ間はコイル線材を巻
回するための溝部３ａ、　３ｂときれている。Grooves 3a and 3b are formed between the flanges 2a and 2b and between the flanges 2b and 2c for winding the coil wire.

コア１０はフェライトにて「日」の字形状に成形した・
もので、その−辺１０ａは前記ボビン片１ａ、　ｌｂに
て挾着されている。即ち、ボビン片１ａ、　ｌｂは溝部
５ａ、　５ｂでコア１０の一辺１０ａを挾み込んで接着
され、略円筒状のボビン１とされている。溝部５ａ。The core 10 is made of ferrite and is molded into a “Ja” shape.
Its negative side 10a is clamped by the bobbin pieces 1a and lb. That is, the bobbin pieces 1a and lb are glued together with one side 10a of the core 10 sandwiched between the grooves 5a and 5b, thereby forming the substantially cylindrical bobbin 1. Groove portion 5a.

５ｂは真円となり、歯部４ａ、　４ｂ、　４ｃは歯車と
なる。5b is a perfect circle, and the teeth 4a, 4b, and 4c are gears.

コア１０を挾着したボビン１は、第２図に示すように、
歯部４ａ、　４ｂ、　４ｃを円柱状の回転駆動歯車１１
に噛合きせて回転力を伝達することにより、ボビン１を
コア１０の一辺１０ａを中心に回転許せ、コイル線材７
ａ、　７ｂを２箇所の溝部３ａ、　３ｂに巻回し、コイ
ルが形成される。As shown in FIG. 2, the bobbin 1 with the core 10 clamped thereon is
The tooth portions 4a, 4b, 4c are connected to a cylindrical rotary drive gear 11.
By meshing with and transmitting rotational force, the bobbin 1 is allowed to rotate around one side 10a of the core 10, and the coil wire 7
A and 7b are wound around two grooves 3a and 3b to form a coil.

以上のコイル部品においては、ボビン１の全ての鍔部２
ａ、　２ｂ、　２ｃが歯車構造とされているため、コイ
ル線材７ａ、　７ｂの巻回作業の際、回転駆動力が各歯
部４ａ、　４ｂ、　４ｃに均等に分散されてボビン１に
伝達され、各鍔部２ａ、　２ｂ、　２ｃに必要とされる
機械的強度が４＼きくですむ６従って、鍔部２ａ、　２
ｂ、　２ｃの厚みを薄くでき、ＵＬ認定規格で必要とき
れる最低厚み（例えば、約０．８ｍｍ　）に近い厚み０
．８〜１．０ｍｍときれる。即ち、従来のコイル部品と
比較して同じサイズで溝部３ａ、　３ｂの幅が２ｍｍ以
上大きくなり、巻回数にして約１０％、インダクタンス
の数値にして約２０％アップしたコイル部品が得られる
。妨らに、巻回作業時にボビンに回転駆動力が均等に分
散して伝達されるため、コイル線材７ａ、７ｂの巻回が
スムースに行なわれ、コイル巻回作業の効率がよくなる
。In the above coil parts, all the flanges 2 of the bobbin 1
Since a, 2b, and 2c have a gear structure, when winding the coil wires 7a, 7b, the rotational driving force is evenly distributed to each of the teeth 4a, 4b, and 4c and transmitted to the bobbin 1. The mechanical strength required for each of the flanges 2a, 2b, 2c is 4\6. Therefore, the flanges 2a, 2
The thickness of b and 2c can be reduced to 0, which is close to the minimum thickness required by UL certification standards (for example, about 0.8 mm).
．． It can be cut to 8-1.0mm. That is, compared to a conventional coil component, the width of the grooves 3a, 3b is increased by 2 mm or more for the same size, and the coil component has an approximately 10% increase in the number of windings and approximately 20% increase in inductance. On the other hand, since the rotational driving force is evenly distributed and transmitted to the bobbin during the winding operation, the coil wires 7a, 7b can be smoothly wound, and the efficiency of the coil winding operation can be improved.

［第２実施例、第３図及び第４図参照］本実施例のコイ
ル部品は、歯部１４ａ、　１４ｂ、　１４ｃを形成した
鍔部１２ａ、　１２ｂ、　１２ｃの両側にガイド板１３
を配設し、第４図に示すように、歯部１４ａ、　１４ｂ
、　１４ｃを離隔した３枚の回転駆動歯車１５に噛合き
せてボビン１をコアｌＯの一辺１０ａを中心に回転させ
、コイル線材７ａ、　７ｂを２箇所の溝部３ａ、　３ｂ
に巻回し、コイルを形成するものである。この場合、コ
イル線材７ａ、　７ｂの巻回スペースは第１実施例より
もサイド板１３の厚み分だけ狭くなるものの、巻回作業
時のコイル部品の位置決めが容易であるという利点を有
している。[Second Embodiment, see FIGS. 3 and 4] The coil component of this embodiment has guide plates 13 on both sides of the flanges 12a, 12b, 12c on which the teeth 14a, 14b, 14c are formed.
As shown in FIG.
, 14c are meshed with three rotary drive gears 15 separated from each other to rotate the bobbin 1 around one side 10a of the core IO, and the coil wires 7a and 7b are connected to the two grooves 3a and 3b.
It is wound to form a coil. In this case, although the space for winding the coil wires 7a and 7b is narrower by the thickness of the side plate 13 than in the first embodiment, it has the advantage that positioning of the coil components during winding work is easy. .

なお、第１図及び第２図と同一部品、部分は同一符号を
付し、その説明を省略する。Note that parts and portions that are the same as those in FIGS. 1 and 2 are designated by the same reference numerals, and their explanations will be omitted.

［他の実施例］ 本発明に係るコイル部品は、前記実施例に限定するもの
ではなく、その要旨の範囲内で種々に変形することがで
きる。[Other Examples] The coil component according to the present invention is not limited to the above-mentioned embodiments, and can be modified in various ways within the scope of the gist.

コアの形状は前記実施例の１日、の字形のものに限定さ
れず、例えは１０．の字形のものであってもよい。The shape of the core is not limited to the shape of 10 mm as in the above embodiment. It may be in the shape of

また、全ての鍔部に歯部を形成する必要もなく、鍔部の
うち二つ以上を歯車構造にしていればよい。Further, it is not necessary to form teeth on all the flanges, and it is sufficient that two or more of the flanges have a gear structure.

発明の効果 以上の説明で明らかな様に、本発明によれば、ボビンの
複数の鍔部のうち少なくとも二つの鍔部の外周面に同形
状の歯部を形成したため、回転駆動力が分散されてボビ
ンに伝達され、各鍔部にかかる駆動力が小びくなり、各
鍔部に必要とされる機械的強度が小きくてすむ。従って
、鍔部の厚みを薄くでき、従来の構造のボビンを備えた
コイル部品と比較して同じサイズでコイル線材の巻回ス
ペースが増加したコイル部品が得られる。Effects of the Invention As is clear from the above explanation, according to the present invention, since teeth of the same shape are formed on the outer peripheral surface of at least two of the plurality of flanges of the bobbin, the rotational driving force is dispersed. The driving force transmitted to the bobbin and applied to each flange is reduced, and the mechanical strength required for each flange is small. Therefore, the thickness of the flange can be reduced, and a coil component with the same size but an increased winding space for the coil wire can be obtained compared to a coil component with a bobbin of a conventional structure.

ひらに、巻回作業時にボビンに回転駆動力が均等に分散
して伝達きれるため、コイル線材の巻回がスムースに行
なわれ、コイル巻回作業の効率がよくなる。Since the rotational driving force can be evenly distributed and transmitted to the bobbin during the winding operation, the coil wire can be wound smoothly and the efficiency of the coil winding operation can be improved.

【図面の簡単な説明】[Brief explanation of drawings]

第１図及び第２図は本発明に係るコイル部品の第１実施
例を示すもので、第１図は外観を示す斜視図、第２図は
コイル線材の巻回作業を説明するための平面図である。 第３図及び第４図は本発明に係るコイル部品の第２実施
例を示すもので、第３図は外観を示す斜視図、第４図は
コイル線材の巻回作業を説明するための平面図である。 １・・・ボビン、ｌａ、　ｌｂ・・・ボビン片、２ａ、
　２ｂ、　２ｃ・・・鍔部、４ｇ、　４ｂ、　４ｃ・＝
歯部、１０−コア、１０ａ　−−−一辺、１２ａ、１２
ｂ、１２ｃｍ鍔部、１４ａ、１４ｂ、１４ｃｍ歯部。 第１図1 and 2 show a first embodiment of the coil component according to the present invention, FIG. 1 is a perspective view showing the external appearance, and FIG. 2 is a plane view for explaining the winding work of the coil wire material. It is a diagram. 3 and 4 show a second embodiment of the coil component according to the present invention, FIG. 3 is a perspective view showing the external appearance, and FIG. 4 is a plan view for explaining the winding work of the coil wire material. It is a diagram. 1...Bobbin, la, lb...bobbin piece, 2a,
2b, 2c...flange, 4g, 4b, 4c・=
Teeth, 10-core, 10a---one side, 12a, 12
b, 12cm flange, 14a, 14b, 14cm tooth. Figure 1

Claims (1)

【特許請求の範囲】[Claims] １．軸線と平行方向に分割された複数のボビン片にて閉
磁路形状のコアの一辺を挾着し、略円筒形のボビンを構
成し、前記ボビンの複数の鍔部のうち少なくとも二つの
鍔部の外周面に同形状の歯部を形成したことを特徴とす
るコイル部品。1. A plurality of bobbin pieces divided in a direction parallel to the axis are attached to one side of a core having a closed magnetic path shape to form a substantially cylindrical bobbin, and at least two of the plurality of flanges of the bobbin are A coil component characterized by having teeth of the same shape formed on the outer peripheral surface.