JP2002217017A - Coil bobbin - Google Patents

Coil bobbin

Info

Publication number
JP2002217017A
JP2002217017A JP2001005711A JP2001005711A JP2002217017A JP 2002217017 A JP2002217017 A JP 2002217017A JP 2001005711 A JP2001005711 A JP 2001005711A JP 2001005711 A JP2001005711 A JP 2001005711A JP 2002217017 A JP2002217017 A JP 2002217017A
Authority
JP
Japan
Prior art keywords
coil
coil bobbin
major axis
axis direction
shape
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2001005711A
Other languages
Japanese (ja)
Inventor
Takatoshi Honjo
崇俊 本庄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP2001005711A priority Critical patent/JP2002217017A/en
Publication of JP2002217017A publication Critical patent/JP2002217017A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a coil bobbin which is capable of increasing its coil in number of turns while preventing it from rotating. SOLUTION: A coil bobbin is equipped with a coil winding drum 1a provided with rectangular flanges 1b and 1c at both its axial ends, a pair of connecting pieces 4 where the ends of the coil are connected and a pair of coil terminals 3 which are each formed integrally with the connecting pieces 4 are provided to the flange 1b. The coil bobbin 1 is cut into such a shape where its peripheral shape in cross section vertical to the axial direction of the coil winding drum 1a is that the dimensions of the peripheral shape in the direction of the major axis are made equal to those in the direction of the minor axis by the two planes which cross at right angles in the direction of its major axis, confronting each other through the center in a virtual ellipse. In a word, rotation stops 5 and 5 formed of two planes crossing each other at a right angle in the direction of a major axis, confronting each other through the center in a virtual ellipse are provided, by which the external shape of the coil bobbin 1 in the direction of the major axis of a virtual ellipse is made equal in dimensions to that in the direction of the minor axis of the virtual ellipse.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、各種機器や各種設
備に使用され起磁力によって駆動される電磁リレーに用
いられるコイルボビンに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil bobbin used for an electromagnetic relay driven by a magnetomotive force and used for various devices and various facilities.

【0002】[0002]

【従来の技術】従来より、コイルを巻回した筒状のコイ
ルボビンに鉄芯が挿通された電磁石ブロック(コイルブ
ロック)と、電磁石ブロックで発生した起磁力により開
閉駆動される接点装置と、電磁石ブロックおよび接点装
置が取り付けられる取付ベースと、電磁石ブロックおよ
び接点装置を覆うように取付ベースに結合されるケース
とを備えた電磁リレーが提供されている。
2. Description of the Related Art Conventionally, an electromagnet block (coil block) in which an iron core is inserted into a cylindrical coil bobbin around which a coil is wound, a contact device which is opened and closed by a magnetomotive force generated by the electromagnet block, and an electromagnet block An electromagnetic relay includes a mounting base to which the contact device is mounted, and a case coupled to the mounting base so as to cover the electromagnet block and the contact device.

【0003】ところで、近年では電磁リレーの小型化が
進んでおり、限られた空間内でのコイルの巻数を多くで
きるように、鉄芯においてコイルボビンに挿通される部
位を断面円形の円柱形状に形成するとともに、コイルボ
ビンにおいてコイルが巻回されるコイル巻回部を円筒形
状に形成することが提案されている。ここにおいて、コ
イルボビンは、口軸方向の両端に鍔部を有しており、コ
イルの端末部が接続される一対の接続片と、各接続片に
それぞれ連続一体に形成され外部回路に接続される一対
のコイル端子とが一方の鍔部に設けられている。なお、
各コイル端子は、コイルボビンの上記一方の鍔部から口
軸方向に突設されており、上記取付ベースには、各コイ
ル端子がそれぞれ挿通される2つのコイル端子孔が穿孔
されている。また、各接続片は、コイルの各端末部をそ
れぞれからげて接続するようになっている。
In recent years, the size of electromagnetic relays has been reduced, and a portion of the iron core to be inserted into the coil bobbin is formed in a cylindrical shape with a circular cross section so that the number of turns of the coil in a limited space can be increased. In addition, it has been proposed to form a coil winding portion of the coil bobbin around which the coil is wound into a cylindrical shape. Here, the coil bobbin has flanges at both ends in the direction of the mouth axis, and a pair of connecting pieces to which terminal portions of the coils are connected, and each connecting piece is formed continuously and integrally with each other and connected to an external circuit. A pair of coil terminals are provided on one flange. In addition,
Each coil terminal protrudes from the one flange portion of the coil bobbin in the mouth axis direction, and two coil terminal holes into which the coil terminals are respectively inserted are bored in the mounting base. Each connecting piece is connected to each terminal of the coil.

【0004】しかしながら、コイルボビンのコイル巻回
部を円筒形状に形成したものでは、コイル巻回部の口軸
方向に直交する断面の外周形状が円形となるので、コイ
ル巻回部でコイルが回ってしまい、端末部に引っ張り力
が作用してコイルが断線してしまうという問題があっ
た。
However, in the case where the coil winding portion of the coil bobbin is formed in a cylindrical shape, the outer peripheral shape of a cross section orthogonal to the direction of the mouth axis of the coil winding portion is circular, so that the coil is wound around the coil winding portion. As a result, there has been a problem that the pulling force acts on the terminal portion and the coil is disconnected.

【0005】そこで、この種の問題を解決するために、
図2や図3に示すようなコイルボビン1’,1”が提案
されている。図2に示すコイルボビン1’は、同図
(b)に示すように、コイル巻回部1a’の口軸方向に
直交する断面の外周形状を楕円形状に形成し、長径方向
に平行で中心を挟む2つの平面よりなる回り止め部
5’,5’を設けてある。各回り止め部5’,5’はコ
イル巻回部1a’の外周方向において離間し且つそれぞ
れ口軸方向に沿って形成されている。ここに、図2
(b)に示すコイル巻回部1a’の上記断面の外周形状
における2つの焦点はF,F’であり、長径方向は図2
(b)の左右方向となり、短径方向は図2(b)の上下
方向となっている。また、図2(b)に示す例では、短
径方向の長さ(短軸の長さ)がA〔mm〕、長径方向の
長さ(長軸の長さ)がA〔mm〕+0.2〔mm〕とな
っている。ここにおいて、コイル巻回部1a’の上記断
面における内周形状は円形に形成されており、コイル巻
回部1a’の肉厚は上記長径方向において最も厚くなり
上記短径方向において最も薄くなっている。図2(b)
中におけるRは円弧の半径を示す記号であり、矢印を付
けた弧に関してRと記入された部分の寸法は同じ寸法に
設定されている。
Therefore, in order to solve this kind of problem,
Coil bobbins 1 'and 1 "as shown in FIGS. 2 and 3 have been proposed. As shown in FIG. 2B, the coil bobbin 1' shown in FIG. The outer peripheral shape of the cross section perpendicular to the elliptical shape is formed in an elliptical shape, and detent portions 5 ', 5' formed of two planes parallel to the major axis direction and sandwiching the center are provided. The coil windings 1a 'are formed at intervals in the outer circumferential direction of the coil winding portion 1a' and along the direction of the mouth axis.
Two focal points in the outer peripheral shape of the cross section of the coil winding portion 1a 'shown in (b) are F and F', and the major axis direction is shown in FIG.
2B, and the minor axis direction is the vertical direction in FIG. 2B. In the example shown in FIG. 2B, the length in the minor axis direction (length of the minor axis) is A [mm], and the length in the major axis direction (length of the major axis) is A [mm] +0. 2 [mm]. Here, the inner peripheral shape in the cross section of the coil winding portion 1a 'is formed in a circular shape, and the thickness of the coil winding portion 1a' is thickest in the long diameter direction and thinnest in the short diameter direction. I have. FIG. 2 (b)
R in the inside is a symbol indicating the radius of the circular arc, and the dimensions of the portion marked R with respect to the arc with the arrow are set to the same size.

【0006】なお、コイルボビン1’は口軸方向の両端
に矩形状の鍔部1b,1cを有しており、コイル2の端
末部が接続される一対の接続片4と、各接続片4にそれ
ぞれ連続一体に形成され外部回路に接続するための一対
のコイル端子3とが一方の鍔部1bに設けられている。
また、各接続片4の先端部にはコイル2の端末部が図2
(b)における上下方向へ抜けるのを防止するための抜
止片4aが突設されている。
The coil bobbin 1 ′ has rectangular flanges 1 b and 1 c at both ends in the direction of the mouth axis, and a pair of connecting pieces 4 to which the terminal of the coil 2 is connected, and a pair of connecting pieces 4. A pair of coil terminals 3 which are formed continuously and integrally and are connected to an external circuit are provided on one flange 1b.
The terminal of the coil 2 is provided at the tip of each connecting piece 4 as shown in FIG.
A retaining piece 4a for preventing the upper part from falling off in (b) is projected.

【0007】また、図3に示すコイルボビン1”は、同
図(b)に示すように、コイル巻回部1a”の口軸方向
に直交する断面の外周形状を正方形に近づけることによ
り、コイル巻回部1a”でコイル2が回るのを防止する
ものである。ここに、上記断面におけるコイル巻回部1
a”の内周形状は円形に形成されている。他の構成は図
2に示したコイルボビン1’と同じであり、同じ構成要
素には同一の符号を付してある。
Further, as shown in FIG. 3 (b), the coil bobbin 1 "shown in FIG. This prevents the coil 2 from turning at the turn 1a ". Here, the coil turn 1 in the cross section is shown.
The inner peripheral shape of a ″ is formed in a circular shape. The other configuration is the same as that of the coil bobbin 1 ′ shown in FIG. 2, and the same components are denoted by the same reference numerals.

【0008】[0008]

【発明が解決しようとする課題】しかしながら、図2に
示したコイルボビン1’では、コイル巻回部の口軸方向
に直交する断面の外周形状を円形にした場合に比べて、
図2(b)におけるコイル巻回部1a’の左右方向の外
形寸法が大きくなってしまうので、コイル2を巻回でき
るスペースが小さくなり、電磁石ブロックで発生する起
磁力が低下してしまうという不具合があった。なお、上
記左右方向の外形寸法を小さくするために、コイル巻回
部1a’の肉厚を薄くすることも考えられるが、コイル
巻回部1a’の肉厚は、コイル巻回部1a’の機械的強
度、成形加工性などにより制約される。
However, in the coil bobbin 1 'shown in FIG. 2, the outer periphery of the cross section orthogonal to the direction of the mouth axis of the coil winding portion is made circular,
Since the outer dimensions of the coil winding portion 1a 'in the left-right direction in FIG. 2B become large, the space in which the coil 2 can be wound is reduced, and the magnetomotive force generated in the electromagnet block is reduced. was there. In order to reduce the outer dimensions in the left-right direction, it is conceivable to reduce the thickness of the coil winding portion 1a '. However, the thickness of the coil winding portion 1a' is It is limited by mechanical strength, moldability, etc.

【0009】また、図3に示したコイルボビン1”で
は、コイル巻回部1a”の口軸方向に直交する断面の内
周形状が円形となっている一方で外周形状を正方形に近
づけており、コイル巻回部1a”の肉厚が均一ではなく
(つまり、厚肉に形成された部位がある)ので、コイル
巻回部の口軸方向に直交する断面の外周形状を円形にし
た場合に比べてコイル2を巻回できるスペースが小さく
なり、電磁石ブロックで発生する起磁力が低下してしま
うという不具合があった。
Also, in the coil bobbin 1 "shown in FIG. 3, the coil winding portion 1a" has a circular inner peripheral shape in a cross section orthogonal to the mouth axis direction, while the outer peripheral shape is close to a square. Since the thickness of the coil winding portion 1a ″ is not uniform (that is, there is a portion formed to be thick), the coil winding portion 1a ″ has a circular outer peripheral shape in a cross section orthogonal to the mouth axis direction. Thus, there is a problem that the space in which the coil 2 can be wound is reduced, and the magnetomotive force generated in the electromagnet block is reduced.

【0010】本発明は上記事由に鑑みて為されたもので
あり、その目的は、コイルの回転を防止しつつコイルの
巻数を多くできるコイルボビンを提供することにある。
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a coil bobbin that can increase the number of turns of a coil while preventing rotation of the coil.

【0011】[0011]

【課題を解決するための手段】請求項1の発明は、上記
目的を達成するために、コイルがコイル巻回部に巻回さ
れるコイルボビンであって、コイル巻回部の口軸方向に
直交する断面の外周形状が、仮想楕円形において長径方
向に直交し且つ中心を挟む2つの平面により前記長径方
向の寸法を短径方向の寸法に等しくなるようにカットし
た形状に形成されてなることを特徴とするものであり、
コイル巻回部において上記平面に沿って形成された部位
でコイルが回転するのを防止することができてコイルの
断線を防止でき、しかも、コイル巻回部の口軸方向に直
交する断面の外周形状が楕円形や正方形に近い形状に形
成されている従来例に比べて、コイルの巻数を多くする
ことができて、結果的にコイルボビンおよびコイルおよ
び鉄芯を備えた電磁石ブロックで発生する起磁力を増大
させることができる。
According to a first aspect of the present invention, there is provided a coil bobbin in which a coil is wound around a coil winding portion, the coil bobbin being orthogonal to the direction of the mouth axis of the coil winding portion. The outer peripheral shape of the cross section to be formed is formed in such a shape that the dimension in the major axis direction is cut to be equal to the dimension in the minor axis direction by two planes perpendicular to the major axis direction and sandwiching the center in the virtual ellipse. Features
In the coil winding portion, the coil can be prevented from rotating at a portion formed along the plane, so that the coil can be prevented from being disconnected. In addition, the outer circumference of a cross section orthogonal to the axial direction of the coil winding portion Compared to the conventional example in which the shape is formed into an elliptical shape or a shape close to a square, the number of turns of the coil can be increased, and as a result, the magnetomotive force generated by the coil bobbin and the electromagnet block including the coil and the iron core Can be increased.

【0012】[0012]

【発明の実施の形態】本実施形態のコイルボビン1の基
本構成は図2に示した従来構成と略同じであって、図1
に示すように、コイル巻回部1aの口軸方向の両端に矩
形状の鍔部1b,1cを有しており、コイル2の端末部
が接続される一対の接続片4と、各接続片4にそれぞれ
連続一体に形成され外部回路に接続するための一対のコ
イル端子3とが一方の鍔部1bに設けられている。ま
た、各接続片4の先端部にはコイル2の端末部が図1
(b)における上下方向へ抜けるのを防止するための抜
止片4aが突設されている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The basic structure of a coil bobbin 1 according to the present embodiment is substantially the same as the conventional structure shown in FIG.
As shown in FIG. 5, the coil winding portion 1a has rectangular flanges 1b and 1c at both ends in the mouth axis direction, and a pair of connection pieces 4 to which the terminal portion of the coil 2 is connected, and each connection piece. 4 and a pair of coil terminals 3 formed continuously and integrally with each other and connected to an external circuit are provided on one flange portion 1b. The terminal of the coil 2 is provided at the tip of each connecting piece 4 as shown in FIG.
A retaining piece 4a for preventing the upper part from falling off in (b) is projected.

【0013】ところで、本実施形態のコイルボビン1
は、図1(b)に示すように、コイル巻回部1aの口軸
方向に直交する断面の外周形状が、仮想楕円形において
長径方向に直交し且つ中心を挟む2つの平面により上記
長径方向の寸法を短径方向の寸法に等しくなるようにカ
ットした形状に形成されている点に特徴がある。要する
に、仮想楕円形において長径方向に直交し且つ中心を挟
む2つの平面よりなる回り止め部5,5を設けることに
より、仮想楕円形の長径方向に沿った外形寸法と短径方
向に沿った外形寸法とを同じ寸法(A〔mm〕)にして
ある。なお、本実施形態では、仮想楕円形の短径方向に
沿った外形寸法Aは、コイル巻回部1aの肉厚が機械的
強度や成形加工性などにより決まる最小寸法となるよう
に設定してある。
By the way, the coil bobbin 1 of this embodiment
As shown in FIG. 1 (b), the outer circumferential shape of the cross section of the coil winding part 1a orthogonal to the mouth axis direction is perpendicular to the major axis direction in a virtual elliptical shape and is defined by two planes sandwiching the center. Is characterized in that it is formed in a shape cut so that the dimension of the element becomes equal to the dimension in the minor diameter direction. In short, the outer dimensions along the major axis direction and the outer dimension along the minor axis direction of the virtual ellipse are provided by providing the detent portions 5 and 5 each composed of two planes orthogonal to the major axis direction and sandwiching the center in the virtual ellipse. The dimensions are the same (A [mm]). In the present embodiment, the outer dimension A along the minor axis direction of the virtual ellipse is set such that the thickness of the coil winding part 1a is a minimum dimension determined by mechanical strength, formability, and the like. is there.

【0014】各回り止め部5,5は外周方向において離
間し且つそれぞれコイル巻回部1aの口軸方向に沿って
形成されている。ここにおいて、図示した例では、仮想
楕円形の焦点が図1(b)中のF,F’の位置にあり、
長径方向は図1(b)の左右方向となり、短径方向は図
1(b)の上下方向となっている。なお、図2に示した
従来例では、2つの焦点F,F’間の距離が0.2〔m
m〕に設定されていたのに対して、本実施形態では、焦
点F,F’間の距離を上記従来例に比べて十分に小さな
0.05〔mm〕に設定してある。なお、コイルボビン
1は合成樹脂成形品よりなり、コイル巻回部1aの口軸
方向の断面形状が上記仮想楕円形となるような金型を用
いて成形した際に上記長径方向において肉厚が上記短手
方向よりも厚い部位が形成されるので、この肉厚が厚い
部位を上記長径方向の寸法が短径方向の寸法に等しくな
るようにカットすればよい。
The detent portions 5, 5 are spaced apart from each other in the outer peripheral direction and are formed along the direction of the axis of the coil winding portion 1a. Here, in the illustrated example, the focus of the virtual ellipse is at the position of F, F ′ in FIG.
The major axis direction is the horizontal direction in FIG. 1B, and the minor axis direction is the vertical direction in FIG. 1B. In the conventional example shown in FIG. 2, the distance between the two focal points F and F ′ is 0.2 [m
m], in the present embodiment, the distance between the focal points F and F ′ is set to 0.05 [mm], which is sufficiently smaller than that in the conventional example. The coil bobbin 1 is made of a synthetic resin molded product, and when the coil bobbin 1a is molded using a mold in which the cross-sectional shape in the mouth axis direction of the coil winding portion 1a is the virtual elliptical shape, the wall thickness in the major axis direction is the same as that described above. Since a portion thicker than the short direction is formed, the thick portion may be cut such that the dimension in the long diameter direction is equal to the dimension in the short diameter direction.

【0015】しかして、本実施形態のコイルボビン1で
は、コイル巻回部1aの口軸方向に直交する断面の外周
形状が、仮想楕円形において長径方向に直交し且つ中心
を挟む2つの平面により上記長径方向の寸法を短径方向
の寸法に等しくなるようにカットした形状に形成されて
なるものであり、コイル巻回部1aにおいて上記平面に
沿って形成された回り止め部5,5でコイル2が回転す
るのを防止することができてコイル2の断線を防止で
き、しかも、コイル巻回部1aの口軸方向に直交する断
面の外周形状を楕円形とした図2の従来例や正方形に近
づけた図3の従来例に比べて、コイル2の巻数を多くす
ることができて、結果的にコイルボビン1およびコイル
2および鉄芯(図示せず)を備えた電磁石ブロックで発
生する起磁力を増大させることができる。図1に示した
例では、図2に示した従来例の105%の起磁力を確保
することができた。したがって、起磁力を同じにする場
合には、図2や図3に示した従来例に比べて電磁リレー
の小型化を図ることが可能になる。
Thus, in the coil bobbin 1 of the present embodiment, the outer peripheral shape of the cross section of the coil winding portion 1a perpendicular to the mouth axis direction is defined by two planes perpendicular to the major axis direction and sandwiching the center in the virtual ellipse. It is formed in a shape in which the dimension in the major axis direction is cut so as to be equal to the dimension in the minor axis direction. 2 can be prevented from rotating, and the coil 2 can be prevented from breaking. In addition, the coil winding portion 1a has an elliptical outer peripheral shape in a cross section orthogonal to the direction of the mouth axis. 3, the number of turns of the coil 2 can be increased, and as a result, the magnetomotive force generated by the electromagnet block including the coil bobbin 1, the coil 2, and an iron core (not shown) can be reduced. Increase It can be. In the example shown in FIG. 1, a magnetomotive force of 105% of the conventional example shown in FIG. 2 could be secured. Therefore, when the magnetomotive force is the same, the size of the electromagnetic relay can be reduced as compared with the conventional example shown in FIGS.

【0016】[0016]

【発明の効果】請求項1の発明は、コイルがコイル巻回
部に巻回されるコイルボビンであって、コイル巻回部の
口軸方向に直交する断面の外周形状が、仮想楕円形にお
いて長径方向に直交し且つ中心を挟む2つの平面により
前記長径方向の寸法を短径方向の寸法に等しくなるよう
にカットした形状に形成されてなるものであり、コイル
巻回部において上記平面に沿って形成された部位でコイ
ルが回転するのを防止することができてコイルの断線を
防止でき、しかも、コイル巻回部の口軸方向に直交する
断面の外周形状が楕円形や正方形に近い形状に形成され
ている従来例に比べて、コイルの巻数を多くすることが
できるという効果があり、結果的にコイルボビンおよび
コイルおよび鉄芯を備えた電磁石ブロックで発生する起
磁力を増大させることができる。
According to a first aspect of the present invention, there is provided a coil bobbin in which a coil is wound around a coil winding portion, wherein an outer peripheral shape of a cross section of the coil winding portion which is orthogonal to a direction of a mouth axis is a long diameter of a virtual ellipse And formed in such a shape that the dimension in the major axis direction is cut to be equal to the dimension in the minor axis direction by two planes perpendicular to the direction and sandwiching the center. The coil can be prevented from rotating at the formed part, preventing the coil from breaking.Moreover, the outer peripheral shape of the cross section of the coil winding part orthogonal to the direction of the mouth axis is shaped like an ellipse or a square. In comparison with the conventional example, the number of turns of the coil can be increased, and as a result, the magnetomotive force generated in the electromagnet block including the coil bobbin and the coil and the iron core is increased. Door can be.

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

【図1】実施形態を示し、(a)は正面図、(b)は横
断面図、(c)は側面図である。
1A and 1B show an embodiment, in which FIG. 1A is a front view, FIG. 1B is a transverse sectional view, and FIG. 1C is a side view.

【図2】従来例を示し、(a)は正面図、(b)は横断
面図である。
FIGS. 2A and 2B show a conventional example, wherein FIG. 2A is a front view and FIG.

【図3】他の従来例を示し、(a)は正面図、(b)は
横断面図である。
3A and 3B show another conventional example, in which FIG. 3A is a front view and FIG. 3B is a cross-sectional view.

【符号の説明】[Explanation of symbols]

1 コイルボビン 1a コイル巻回部 1b 鍔部 1c 鍔部 2 コイル 3 コイル端子 4 接続片 5 回り止め部 DESCRIPTION OF SYMBOLS 1 Coil bobbin 1a Coil winding part 1b Flange part 1c Flange part 2 Coil 3 Coil terminal 4 Connection piece 5 Detent part

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 コイルがコイル巻回部に巻回されるコイ
ルボビンであって、コイル巻回部の口軸方向に直交する
断面の外周形状が、仮想楕円形において長径方向に直交
し且つ中心を挟む2つの平面により前記長径方向の寸法
を短径方向の寸法に等しくなるようにカットした形状に
形成されてなることを特徴とするコイルボビン。
1. A coil bobbin in which a coil is wound around a coil winding portion, wherein an outer peripheral shape of a cross section orthogonal to a direction of a mouth axis of the coil winding portion is orthogonal to a major axis direction in a virtual ellipse and centered at a center. A coil bobbin formed in a shape cut by two planes sandwiched so that the dimension in the major axis direction is equal to the dimension in the minor axis direction.
JP2001005711A 2001-01-12 2001-01-12 Coil bobbin Pending JP2002217017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001005711A JP2002217017A (en) 2001-01-12 2001-01-12 Coil bobbin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001005711A JP2002217017A (en) 2001-01-12 2001-01-12 Coil bobbin

Publications (1)

Publication Number Publication Date
JP2002217017A true JP2002217017A (en) 2002-08-02

Family

ID=18873720

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001005711A Pending JP2002217017A (en) 2001-01-12 2001-01-12 Coil bobbin

Country Status (1)

Country Link
JP (1) JP2002217017A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015076274A1 (en) * 2013-11-19 2015-05-28 矢崎総業株式会社 Coil unit and contactless power transfer device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015076274A1 (en) * 2013-11-19 2015-05-28 矢崎総業株式会社 Coil unit and contactless power transfer device

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