JPH09270319A - Electromagnet with e-type core - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stick fast a core and a winding coil and to increase magnetic force by increasing the number of windings of coil, by a method wherein the winding coil is directly wound on an E-type core without using a bobbin. SOLUTION: A winding coil 3 is directly wound on an E-type core 1 without using a bobbin in this electromagnet. The manufacturing method of this electromagnet is as follows. A is wound in a gapless bobbin state using a bobbin-like frame on which at least one of side walls 5 can be moved in an axial direction. A coil is wound up by rotating a shaft by a motor M on this winding. When the above-mentioned winding of coil is performed, a bonding agent and the like are used to keep the coil in shape. After winding, a gap is formed between side walls by shifting one of the side walls 5, only the coil is removed from the gap, and the winding coil, having no bobbin, is formed, the electromagnet is obtained by inserting the winding coil into an E-type core. As a result, the lowering of transmittance caused by a partial leakage of electromagnetic force can be reduced to the minimum.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、Ｅ型鉄心を有する電磁
石に関する。特に、特開平７−１５０４３９号「ジャカ
ード機の経糸選択装置」において用いる制御電磁石の改
良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnet having an E type iron core. In particular, it relates to an improvement of a control electromagnet used in Japanese Unexamined Patent Publication No. Hei 7-150439, "Warp yarn selection device for jacquard machine".

【０００２】[0002]

【従来の技術】特開平７−１５０４３９号は、ジャカー
ド機の経糸を電磁石パルス励磁によって、リターンスプ
リングなしに選択する制御装置であり、複数の縦針の上
部を案内する複数の縦針ガイド通路を正面に配列し、か
つ選択的に縦針と係合してこれを地板に関し相対的に昇
降駆動させる。そのために、各縦針ガイド通路に対応す
る背面側に、縦針裏面に接離する方向に揺動するよう
に装備されたフックレバーと、フックレバーの自由端
近傍に装着された永久磁石と、永久磁石に対向して縦
針通路と反対側の位置に装着されたＥ型鉄心を有する電
磁石を設けてなるセレクトハウジングを備える。また、
縦針には、フックレバーの接近を許容してこれを受け入
れる長孔と、長孔内のフックレバーを長孔外に押し戻す
ためのカム面を連設している。2. Description of the Related Art Japanese Patent Application Laid-Open No. 7-150439 is a control device for selecting warp threads of a jacquard machine by electromagnet pulse excitation without a return spring. Are arranged on the front side, and are selectively engaged with the vertical needles to drive them vertically with respect to the main plate. Therefore, on the back side corresponding to each vertical needle guide passage, a hook lever equipped to swing toward and away from the back surface of the vertical needle, and a permanent magnet mounted near the free end of the hook lever, A select housing is provided which is provided with an electromagnet having an E-shaped iron core that is mounted at a position opposite to the vertical needle passage opposite to the permanent magnet. Also,
The vertical needle is provided with a long hole that allows the hook lever to approach and accepts it, and a cam surface for pushing the hook lever inside the long hole back to the outside of the long hole.

【０００３】[0003]

【発明が解決しようとする課題】上記装置では、フック
レバーに電磁力の悪影響を与えないため、電磁石にＥ型
鉄心を使用している。この鉄心を電磁石にするために、
鉄心にソレノイドコイルを設ける必要があるが、Ｅ型形
状ゆえに直接この中心部に細い被覆銅線を巻きつけるこ
とは既存の一般的な技術では不可能である。In the above device, the E-type iron core is used as the electromagnet in order to prevent the hook lever from being adversely affected by the electromagnetic force. To make this iron core an electromagnet,
Although it is necessary to provide a solenoid coil on the iron core, it is not possible to wind a thin coated copper wire directly on this center portion by the existing general technique because of the E shape.

【０００４】そこで、図３に示すように、このような形
状の鉄心１に予め準備したボビン２にコイル巻き３を実
施し、この巻線されたＥ型鉄心に挿入し、電磁石を形成
する方法が用いられている。このボビン自体は材質上の
強度や製作上の制約により相当の最少厚さが必要であ
り、この厚さが鉄心とコイル自体の内径面とに間隙を作
ることになる。Therefore, as shown in FIG. 3, a coil winding 3 is carried out on a bobbin 2 prepared in advance on an iron core 1 having such a shape, and the coil is inserted into the wound E-shaped iron core to form an electromagnet. Is used. This bobbin itself requires a considerable minimum thickness due to the strength of the material and restrictions in manufacturing, and this thickness creates a gap between the iron core and the inner diameter surface of the coil itself.

【０００５】ところで、周知のように、鉄心に効率よく
電磁力線を通過させるためには、当該鉄心と巻線コイル
が密着状態にあることが最良である。前述のボビンの厚
さ（図２の２点鎖線）に起因する間隙があると、電磁力
の一部が洩れて透過率が低下する。By the way, as is well known, in order to allow the electromagnetic force lines to efficiently pass through the iron core, it is best that the iron core and the winding coil are in close contact with each other. If there is a gap due to the thickness of the bobbin (two-dot chain line in FIG. 2), part of the electromagnetic force leaks and the transmittance decreases.

【０００６】また、電磁コイルによる発生磁力は電流と
巻数に比例するため、巻線径をできるだけ小さく巻くこ
とが供給電力に対する起電力の効率の上昇に寄与する。Since the magnetic force generated by the electromagnetic coil is proportional to the current and the number of turns, winding the winding diameter as small as possible contributes to an increase in the efficiency of electromotive force with respect to the supplied power.

【０００７】本発明は、鉄心と巻線コイルを密着状態と
し、さらにコイル巻回数を増やして、発生磁力を増加さ
せた電磁石を提供することを目的とする。It is an object of the present invention to provide an electromagnet in which the iron core and the winding coil are brought into close contact with each other and the number of coil windings is increased to increase the generated magnetic force.

【０００８】[0008]

【課題を解決するための手段】本発明のＥ型鉄心を有す
る電磁石は、Ｅ型鉄心にボビンを介することなく直接に
巻線コイルを巻き着けたことを特徴とする。巻線コイル
は型崩れ防止剤によって固めるのが好ましい。An electromagnet having an E-shaped iron core of the present invention is characterized in that a winding coil is directly wound around the E-shaped iron core without a bobbin. The wound coil is preferably solidified with a shape-preserving agent.

【０００９】[0009]

【作用】本発明のＥ型鉄心を有する電磁石は、Ｅ型鉄心
にボビンを介することなく直接に巻線コイルを巻き着け
ているので、ボビンの厚さに起因する間隙がない。した
がって、電磁力の一部が洩れて透過率が低下するのを最
小限に止めることができる。また、ボビンを省略するこ
とにより、その分巻線を増加させることができる。その
結果、一定電力に対する発生磁力が増加する。In the electromagnet having the E-shaped iron core of the present invention, since the winding coil is directly wound around the E-shaped iron core without the bobbin interposed, there is no gap due to the thickness of the bobbin. Therefore, it is possible to minimize the decrease in the transmittance due to the leakage of a part of the electromagnetic force. Further, by omitting the bobbin, the number of windings can be increased accordingly. As a result, the generated magnetic force with respect to constant power increases.

【００１０】[0010]

【実施例】以下、添付の図面に基づいて本発明の実施例
を説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.

【００１１】図１に示すように、本発明では、Ｅ型鉄心
１にボビンを介することなく直接に巻線コイル３を巻き
着けている。その製造方法の一例としては、例えば、図
３に示すように、少なくとも一方の側壁５が軸方向に移
動可能なボビンに似た型枠を用意し、隙間のないボビン
状態で巻線を巻き着ける（図３（ａ）参照）。巻線は、
例えば外径０．０８〜０．１０ｍｍである。モータＭに
より軸を回転させてコイルを巻き取っていく。その際、
接着剤等の型崩れ防止剤を付与して型崩れを防ぐ必要が
ある。その後、側壁５の一方をずらして側壁間に隙間を
作りそこから巻線のみを取り外してボビンを持たない巻
線コイルとする（図３（ｂ）参照）。この巻線コイルを
Ｅ型鉄心に挿入して電磁石を完成する。As shown in FIG. 1, in the present invention, the winding coil 3 is directly wound around the E-shaped iron core 1 without a bobbin. As an example of the manufacturing method, for example, as shown in FIG. 3, a form similar to a bobbin in which at least one side wall 5 is movable in the axial direction is prepared, and the winding can be wound around in a bobbin state without a gap. (See FIG. 3 (a)). The winding is
For example, the outer diameter is 0.08 to 0.10 mm. The motor M rotates the shaft to wind the coil. that time,
It is necessary to prevent the shape loss by applying a shape loss preventing agent such as an adhesive. Then, one of the side walls 5 is displaced to form a gap between the side walls, and only the winding is removed from the side wall to form a winding coil having no bobbin (see FIG. 3B). The winding coil is inserted into the E-shaped iron core to complete the electromagnet.

【００１２】本発明の電磁石は、特開平７−１５０４３
９号「ジャカード機の経糸選択装置」のＥ型鉄心に使用
することができる。特開平７−１５０４３９号発明の構
成は、同明細書［００１２］〜［００１９］の文章及び
図１〜図５の図面に詳細に記載されているので、それを
参照されたい。The electromagnet of the present invention is disclosed in JP-A-7-15043.
It can be used for E-type iron core of No. 9 "Jaquard machine warp selection device". The construction of the invention of JP-A-7-150439 is described in detail in the texts [0012] to [0019] of the specification and the drawings of FIGS. 1 to 5, so please refer to it.

【００１３】[0013]

【発明の効果】本願発明の電磁石は、図２のように、巻
線コイルと鉄心が密着し、間隙がほとんどない。したが
って、電磁力の一部が洩れて透過率が低下するのを最小
限に止めることができる。In the electromagnet of the present invention, as shown in FIG. 2, the winding coil and the iron core are in close contact with each other, and there is almost no gap. Therefore, it is possible to minimize the decrease in the transmittance due to the leakage of a part of the electromagnetic force.

【００１４】さらに、本願発明の電磁石は、ボビンの肉
厚を０．５ｍｍとすると、その分４〜６層巻線を増加さ
せることができる。その結果、一定電力に対する発生磁
力が増加する。Further, in the electromagnet of the present invention, when the bobbin has a wall thickness of 0.5 mm, the number of 4 to 6 layer windings can be increased accordingly. As a result, the generated magnetic force with respect to constant power increases.

【００１５】さらに、本願発明の電磁石は、供給電力が
少なくできて、駆動電源を小さくすることが可能とな
る。Furthermore, the electromagnet of the present invention can reduce the power supply and the drive power supply.

【００１６】本願発明の電磁石を特開平７−１５０４３
９号発明に取り付けると、当該選択装置の性能を向上さ
せ、コスト低減を図ることができる。The electromagnet of the present invention is disclosed in Japanese Patent Application Laid-Open No. 7-15043.
When attached to the No. 9 invention, the performance of the selection device can be improved and the cost can be reduced.

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

【図１】本発明に係る電磁石の分解図である。FIG. 1 is an exploded view of an electromagnet according to the present invention.

【図２】本発明に係る電磁石の拡大断面図である。FIG. 2 is an enlarged sectional view of an electromagnet according to the present invention.

【図３】本発明のＥ型鉄芯に使用する巻線コイルの製造
方法の説明図である。FIG. 3 is an explanatory view of a method for manufacturing a winding coil used for the E-shaped iron core of the present invention.

【図４】従来のＥ型鉄心を有する電磁石の分解図であ
る。FIG. 4 is an exploded view of a conventional electromagnet having an E-shaped iron core.

【符号の説明】[Explanation of symbols]

１ Ｅ型鉄心 ３ コイル巻線 1 E type iron core 3 Coil winding

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 Ｅ型鉄心（１）にボビンを介することな
く直接に巻線コイル（３）を巻き着けたことを特徴とす
る電磁石。1. An electromagnet characterized in that a winding coil (3) is wound directly around an E-shaped iron core (1) without a bobbin. 【請求項２】 巻線コイル（３）が型崩れ防止剤によっ
て固められている請求項１記載の電磁石。2. The electromagnet according to claim 1, wherein the winding coil (3) is hardened with a shape-preserving agent.