JPH07263220A - Rotary solenoid - Google Patents
Rotary solenoidInfo
- Publication number
- JPH07263220A JPH07263220A JP7269894A JP7269894A JPH07263220A JP H07263220 A JPH07263220 A JP H07263220A JP 7269894 A JP7269894 A JP 7269894A JP 7269894 A JP7269894 A JP 7269894A JP H07263220 A JPH07263220 A JP H07263220A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic pole
- pole
- movable
- fixed
- auxiliary
- 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
Links
Landscapes
- Electromagnets (AREA)
Abstract
Description
【0001】[0001]
【発明の属する分野】本発明は、軸方向移動のないロ−
タリソレノイドの磁気回路の構成に関するものである。FIELD OF THE INVENTION The present invention relates to a roller having no axial movement.
The present invention relates to the configuration of a magnetic circuit of a Tally solenoid.
【0002】[0002]
【従来の技術】図1は従来のロ−タリソレノイドの横断
面図、その縦断面図である。図1に示す様に磁性体の固
定磁極3と可動磁極4とが軸方向と垂直に互いに向い会
い、これらの磁極がコイル1の両脇に位置して磁性体の
円筒状のケ−ス2と共にコイル1を囲み、可動磁極4の
軸芯を出す機能を備えた非磁性のエンドプレ−ト6を、
コイル1の両脇に位置する磁極の外側へ配して、磁束が
固定磁極3、可動磁極4、継鉄5、ケ−ス2間を流れる
様に磁気回路を構成している。2. Description of the Related Art FIG. 1 is a transverse sectional view of a conventional rotary solenoid and a longitudinal sectional view thereof. As shown in FIG. 1, a fixed magnetic pole 3 and a movable magnetic pole 4 made of a magnetic material face each other perpendicularly to the axial direction, and these magnetic poles are located on both sides of the coil 1 and have a cylindrical case 2 made of a magnetic material. A non-magnetic end plate 6 that surrounds the coil 1 and has a function of extending the axis of the movable magnetic pole 4 is provided.
The magnetic circuit is arranged outside the magnetic poles located on both sides of the coil 1 so that the magnetic flux flows between the fixed magnetic pole 3, the movable magnetic pole 4, the yoke 5, and the case 2.
【0003】固定磁極3と可動磁極4は回転角度に応じ
て、図2に示す如くN分割して居り、固定磁極3と可動
磁極4の位置関係と回転角度の設定は、コイルボビン7
と一体成型したストッパ−部aによって決められる。The fixed magnetic pole 3 and the movable magnetic pole 4 are divided into N according to the rotation angle as shown in FIG. 2, and the positional relationship between the fixed magnetic pole 3 and the movable magnetic pole 4 and the rotation angle are set by the coil bobbin 7.
It is determined by the stopper part a which is integrally molded with.
【0004】 (2) コイル1に通電する事により固定磁極3と可動磁極4間
に磁力が発生し、可動磁極4が磁気抵抗の小さい方向、
図2では時計方向へ回転しながら移動する。これを元の
位置に戻すには可動磁極4と共に組立た非磁性のシャフ
ト8へ復帰用のスプリング9を取り付けて行う。(2) When the coil 1 is energized, a magnetic force is generated between the fixed magnetic pole 3 and the movable magnetic pole 4, and the movable magnetic pole 4 has a small magnetic resistance.
In FIG. 2, it moves while rotating clockwise. To return this to its original position, a return spring 9 is attached to a non-magnetic shaft 8 assembled with the movable magnetic pole 4.
【0005】図2は磁極を4分割した図例であり、この
構造による回転角度とトルクの関係を図5の特性イに示
す。しかし特性図が示す様にある一定回転角度の終点に
近くなると、トルクが低下する為に回転動作時間の遅延
と、励磁時のリバウンドの発生が大きいという欠点を持
って居り、高速周期の実用には適さない。FIG. 2 shows an example in which the magnetic pole is divided into four parts, and the characteristic a in FIG. 5 shows the relationship between the rotation angle and the torque according to this structure. However, as shown in the characteristic diagram, when it approaches the end point of a certain rotation angle, the torque decreases and the rotation operation time is delayed, and rebound during excitation is large, which is a drawback. Is not suitable.
【0006】[0006]
【発明の目的】本発明は回転磁極の形状を一部変更する
事のみにより、回転動作時の磁力を向上させてトルクの
低下を防止し、且つ保持力を向上させる事で回転動作時
間の短縮と励磁時のリバウンド現象の低減を、部品点数
やコストを上げることなく実現することを可能としたロ
−タリソレノイドを提供することを目的とする。An object of the present invention is to shorten the rotating operation time by improving the magnetic force at the time of rotating operation to prevent the decrease of torque and improving the holding force by only partially changing the shape of the rotating magnetic pole. It is an object of the present invention to provide a rotary solenoid that can reduce the rebound phenomenon during excitation without increasing the number of parts and the cost.
【0007】[0007]
【実施例】本発明は従来の構造による欠点を改善する目
的で、可動磁極の回転終了位置に於いて、固定磁極と接
触する様に可動磁極に補助磁極を設けたものである。そ
の構造を図3及び図4に示すが、横断面図は図1と同じ
である。図に於いて、1はコイル、2はケ−ス、3は固
定磁極、4は可動磁極、5は継鉄、6はエンドプレ−
ト、7はコイルボビン、8はシャフト、9は復帰用スプ
リング、10は軸受、aはストッパ−部であり、bが本
発明に係わる補助磁極である。BEST MODE FOR CARRYING OUT THE INVENTION In order to improve the drawbacks of the conventional structure, an auxiliary magnetic pole is provided on the movable magnetic pole so as to contact the fixed magnetic pole at the rotation end position of the movable magnetic pole. Its structure is shown in FIGS. 3 and 4, and its cross-sectional view is the same as FIG. In the figure, 1 is a coil, 2 is a case, 3 is a fixed magnetic pole, 4 is a movable magnetic pole, 5 is a yoke, and 6 is an end plate.
G, 7 is a coil bobbin, 8 is a shaft, 9 is a return spring, 10 is a bearing, a is a stopper portion, and b is an auxiliary magnetic pole according to the present invention.
【0008】コイル1への通電により、コイル1を囲む
ケ−ス2、固定磁極3、可動磁極 (3) 4、継鉄5からなる磁気回路に磁力が発生して、可動磁
極4が軸方向の移動を伴うことなく、磁気抵抗の小さい
方向、図の時計方向へと回転をする。When the coil 1 is energized, a magnetic force is generated in a magnetic circuit composed of a case 2, a fixed magnetic pole 3, a movable magnetic pole (3) 4 and a yoke 5 surrounding the coil 1, so that the movable magnetic pole 4 is axially moved. It rotates in the direction of small magnetic resistance, clockwise in the figure, without moving.
【0009】ここで図4に示す様に設定回転角度のおよ
そ1/2回転又は2/3回転以上可動磁極4が移動する
と、可動磁極4に設けた補助磁極bが、固定磁極3との
間に磁力作用をおよぼし、図5の特性ロに示す様に、回
転範囲の後半で従来の特性イより大幅にトルクの向上が
得られる。更に回転終了点で補助磁極bは固定磁極3に
接触するので、保持力も大幅に向上させる事ができる。Here, as shown in FIG. 4, when the movable magnetic pole 4 moves about 1/2 rotation or 2/3 rotation of the set rotation angle or more, the auxiliary magnetic pole b provided on the movable magnetic pole 4 is moved between the fixed magnetic pole 3 and the auxiliary magnetic pole b. As a result of the characteristic B of FIG. 5, the torque is greatly improved over the conventional characteristic B in the latter half of the rotation range. Further, since the auxiliary magnetic pole b comes into contact with the fixed magnetic pole 3 at the rotation end point, the holding force can be greatly improved.
【0010】このトルク向上の効果により復帰用スプリ
ング9の荷重に対しても余裕が生まれ、回転動作時間の
向上が計れる。又従来型の場合より復帰スプリング9の
荷重を高めてもある一定の動作時間を得ることができ、
又復帰時間を早められる。Due to the effect of this torque improvement, a margin is created for the load of the return spring 9, and the rotational operation time can be improved. Further, even if the load of the return spring 9 is increased as compared with the case of the conventional type, a certain operation time can be obtained,
In addition, the return time can be shortened.
【0011】又、保持力向上の効果により、可動磁極4
のリバウンドの回数及びリバウンド時間を減少させる事
が可能である。この様に特性を改良した事で1サイクル
当りの時間が短縮されるので高速周期での動作にも対応
が可能となり非常に有効な手段となる。Further, due to the effect of improving the holding force, the movable magnetic pole 4
It is possible to reduce the number of rebounds and the rebound time. By improving the characteristics in this way, the time per cycle is shortened, and it is possible to cope with the operation in a high-speed cycle, which is a very effective means.
【0012】尚、固定磁極側に補助磁極を設けたロ−タ
リソレノイドは例えば特開昭59−144357等に開
示されているが、回転磁極側に補助磁極を設ける本発明
は、特に多磁極のロ−タリソレノイドに於いて、開示技
術に比べて構造が簡単となり、加工性が容易となる利点
がある。A rotary solenoid provided with an auxiliary magnetic pole on the fixed magnetic pole side is disclosed in, for example, Japanese Patent Laid-Open No. 59-144357. The rotary solenoid has the advantages that the structure is simpler and the workability is easier than the disclosed technology.
【0013】[0013]
【発明の効果】本発明は回転磁極の形状を変更して補助
磁極を設けることにより、トルク、保持力の向上がで
き、動作時間の短縮化ができるので高応答性の要求に対
応できるロ−タリソレノイドの実現が可能となる。 (4)According to the present invention, by changing the shape of the rotating magnetic pole and providing the auxiliary magnetic pole, the torque and the holding force can be improved, and the operating time can be shortened. A tally solenoid can be realized. (4)
【図1】従来型及び本考案型に共通する断面図FIG. 1 is a sectional view common to the conventional type and the present invention type.
【図2】従来型の磁極形状を表す図FIG. 2 is a diagram showing a conventional magnetic pole shape.
【図3】本発明の磁極形状を表わす図FIG. 3 is a diagram showing a magnetic pole shape of the present invention.
【図4】本発明で約1/2回転した状態を示す図FIG. 4 is a diagram showing a state in which the present invention makes about 1/2 rotation.
【図5】従来型と本発明型のトルクの比較特性図FIG. 5 is a comparative characteristic diagram of torques of the conventional type and the present invention type.
1 コイル 2 ケ−ス 3 固定磁極 4 可動磁極 5 継鉄 6 エンドプレ−ト 7 コイルボビン 8 シャフト 9 復帰用スプリング 10 軸受 a ストッパ部 b 補助磁極 1 coil 2 case 3 fixed magnetic pole 4 movable magnetic pole 5 yoke 6 end plate 7 coil bobbin 8 shaft 9 return spring 10 bearing a stopper b auxiliary magnetic pole
Claims (1)
置された可動磁極とが、軸方向とは垂直に互いに向い会
い、コイルの両脇に位置して円筒状のケ−スと共に前記
コイルを囲んで磁気回路を構成して、可動磁極が固定磁
極内を、磁界に従って自在に回転をするロ−タリソレノ
イドに於いて、前記回転磁極に補助磁極を設け、該補助
磁極は回転終了位置に於いて、固定磁極と接触する様に
構成された事を特徴とするロ−タリソレノイド。1. A fixed magnetic pole and a movable magnetic pole rotatably arranged in the fixed magnetic pole face each other perpendicularly to the axial direction, and are located on both sides of the coil together with a cylindrical case. In a rotary solenoid in which a magnetic circuit is formed by surrounding a coil and a movable magnetic pole freely rotates in a fixed magnetic pole according to a magnetic field, an auxiliary magnetic pole is provided on the rotating magnetic pole, and the auxiliary magnetic pole is at a rotation end position. The rotary solenoid is characterized in that it is configured to come into contact with the fixed magnetic pole.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7269894A JPH07263220A (en) | 1994-03-16 | 1994-03-16 | Rotary solenoid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7269894A JPH07263220A (en) | 1994-03-16 | 1994-03-16 | Rotary solenoid |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH07263220A true JPH07263220A (en) | 1995-10-13 |
Family
ID=13496851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7269894A Pending JPH07263220A (en) | 1994-03-16 | 1994-03-16 | Rotary solenoid |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH07263220A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008166347A (en) * | 2006-12-27 | 2008-07-17 | Hamanako Denso Co Ltd | Rotary solenoid |
JP2013084825A (en) * | 2011-10-12 | 2013-05-09 | Shindengen Mechatronics Co Ltd | Rotary solenoid |
-
1994
- 1994-03-16 JP JP7269894A patent/JPH07263220A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008166347A (en) * | 2006-12-27 | 2008-07-17 | Hamanako Denso Co Ltd | Rotary solenoid |
JP2013084825A (en) * | 2011-10-12 | 2013-05-09 | Shindengen Mechatronics Co Ltd | Rotary solenoid |
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