JPS5893302A

JPS5893302A - Polarized solenoid

Info

Publication number: JPS5893302A
Application number: JP56193149A
Authority: JP
Inventors: Yoichi Yokoyama; 洋一横山
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 1981-11-30
Filing date: 1981-11-30
Publication date: 1983-06-03

Abstract

PURPOSE:To contrive a solenoid to be more efficient, by a method wherein the main air gap between the solenoid and a fixed core is provided outside a coil thereby to prevent the number of turns thereof from being restricted. CONSTITUTION:A central rod 3 of an I-shaped solenoid 1 having upper and lower pieces 2 is inserted into a coil 5. Upper and lower armature surfaces 8b of vertical pieces 8 of intermediate yokes 7 are made to face upper and lower inner armature surfaces 2b of the upper and lower pieces 2, respectively. Upper and lower yoke pieces 11 of the solenoid 1 are made to face the upper and lower pieces 2 of the solenoid 1, respectively, so that permanent magnets 10 and the upper and lower pieces 2 of the solenoid 1 form magnetic paths. As a result, the air gap of the solenoid 1 is provided outside the coil 5. Thus, as compared with the conventional solenoid in which the main air gap of the solenoid is inside the coil 5, the armature surfaces can be made larger. In addition, there is no possibility of any obstruction to the number of turns of the coil.

Description

【発明の詳細な説明】（利用分野）本発明は永久磁石を用いて自己保持する所謂有極ソレノ
イドに関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Application) The present invention relates to a so-called polarized solenoid that is self-supporting using a permanent magnet.

（従来技術の問題点）従来の自己保持型ソレノイドは例えば実開昭絽−７０１
５０号公報が存在し第１図に示す。即ち、従来例はコイ
ルイ内にソレノイド口と固定鉄芯ハとの主空隙二を有す
るため、磁極面積（ソレノイド及び固定鉄芯の外径）を
大きくして、磁路の磁気抵抗を小さくしたい場合、磁極
面積を大きくすると、外フレームホの大きさからコイル
イの巻線スペースが小さくなり、所定の巻数が巻けなく
なってしまう。(Problems with the prior art) A conventional self-holding solenoid is, for example, the Jitsukai Showa-701.
No. 50 exists and is shown in FIG. In other words, the conventional example has a main gap between the solenoid port and the fixed iron core in the coil, so if you want to increase the magnetic pole area (the outer diameter of the solenoid and the fixed iron core) and reduce the magnetic resistance of the magnetic path. If the magnetic pole area is increased, the space for winding the coil will become smaller due to the size of the outer frame, making it impossible to wind a predetermined number of turns.

従ってこのタイプの有極ソレノイドは磁極面積がコイル
巻枠への大きさによって限定されてしまい、ソレノイド
の効率化には限界がある。Therefore, in this type of polarized solenoid, the magnetic pole area is limited by the size of the coil winding frame, and there is a limit to the efficiency of the solenoid.

（目　的）本発明は上記点に鑑みてなしたものであって、即チソレ
ノイドと固定鉄芯との主空隙をコイｋ（１）外側に設け
、コイルの巻数が制限されないようにしたことを目的と
したものである。(Purpose) The present invention has been made in view of the above points, namely, the main gap between the tisolenoid and the fixed iron core is provided on the outside of the coil k (1), so that the number of turns of the coil is not limited. The purpose is to

（実施例）以下本発明を一実施例として掲げた図面に基づいて説明
すると、第２図に於て、１は１字型ソレノイドであって
、内外の水平接極面２１１，２ｂを有する上下片２と、
この上下片２を連ねる中央棒３とでなっている。４はこ
の中央棒３か挿通するコイル５の巻枠で、内孔６を有す
る。７はこの１字型ソレノイド１の左右に位置した中ヨ
ークで、１字型ソレノイド１の左右内側接極面２ｂと対
峙離合する上下接極面８ｂを有する縦片８及びこの縦片
８の中はどに突出された中片９よりＴ字型となっている
。１０は永久磁石で、前記Ｔ字型中ヨーク７の中片９の
上下に２個ずつ４個左右に位置すると共に、而も同一極
が突き合わさっている。(Embodiment) The present invention will be explained based on the drawings as an embodiment. In FIG. Piece 2 and
It consists of a central rod 3 connecting the upper and lower pieces 2. 4 is a winding frame of the coil 5 through which the central rod 3 is inserted, and has an inner hole 6. Reference numeral 7 denotes a middle yoke located on the left and right sides of the single-shaped solenoid 1, which includes a vertical piece 8 having upper and lower polarized surfaces 8b that face and separate from the left and right inner polarized surfaces 2b of the single-shaped solenoid 1; It has a T-shape due to the middle piece 9 protruding from the throat. Reference numeral 10 denotes permanent magnets, and four permanent magnets are located on the left and right sides, two on the top and bottom of the middle piece 9 of the T-shaped middle yoke 7, and the same poles abut each other.

１１は永久磁石１０の上下を左右で連ねる上下のヨーク
片である。第４図は右側にのみＴ字型ヨーク７と永久磁
石１０を位置させたものであり、第５図は中ヨーク７を
コ字型とし、第６図はこの第５図の右側永久磁石１０と
中ヨーク７とであり、第７図は上下ヨーク１１を左右側
板１２にて無端とする。Reference numeral 11 denotes upper and lower yoke pieces that connect the upper and lower parts of the permanent magnet 10 on the left and right sides. 4 shows the T-shaped yoke 7 and permanent magnet 10 located only on the right side, FIG. 5 shows the middle yoke 7 in a U-shape, and FIG. and a middle yoke 7, and in FIG. 7, the upper and lower yokes 11 are made endless by the left and right side plates 12.

（動　作）次に本発明有極ソレノイドの動作を説明すると、第２図
に於て実線Ｘは永久磁石１０の磁束方向でｉ永久磁石１
０から中ヨーク７．１字型ソレノイド１の上下片２、上
下ヨーク片１１を通って磁路をなす。(Operation) Next, to explain the operation of the polarized solenoid of the present invention, in FIG.
0 to the middle yoke 7. A magnetic path is formed through the upper and lower pieces 2 of the 1-shaped solenoid 1 and the upper and lower yoke pieces 11.

続いてコイル５の起磁束は点線Ｙで示し、先ず１字型ソ
レノイド１の中央棒３から下片２、中ヨーク７の下接極
面Ｂｂ、縦片８、上液極面Ｂｂ。Subsequently, the magnetic flux of the coil 5 is shown by a dotted line Y, first from the central rod 3 of the single-shaped solenoid 1 to the lower piece 2, the lower pole face Bb of the middle yoke 7, the vertical piece 8, and the upper liquid pole face Bb.

■字型ソレノイドｌの上片２と通って磁路をなす。It passes through the upper piece 2 of the ■-shaped solenoid l to form a magnetic path.

従って両者の磁束方向Ｘ、Ｙが同一方向となると重畳し
、反対は反発するから、第２図では夏字型ソレノイド１
は上方向に吸引移行する。この時、コイル５の電流を断
っても永久磁石１０にて現状を維持する。勿論、コイル
５の電流を逆向とすれば逆方向に移行する。Therefore, when the two magnetic flux directions X and Y are in the same direction, they overlap, and when they are opposite, they repel, so in Fig. 2, the summer-shaped solenoid 1
moves upward. At this time, even if the current in the coil 5 is cut off, the current state is maintained by the permanent magnet 10. Of course, if the current in the coil 5 is reversed, the current will shift in the opposite direction.

（効　果）本発明は上記の如＜、上下片２を有する１字型ソレノイ
ド１の中央棒３をコイル５に通し、この上下片２の上下
の内側接極面２ｂ−ζ中ヨーク７の縦片８の上下接極面
８ｂを対峙し、且つ中ヨーク７の上下に永久磁石１０を
同一極が突き合うよう配置し、更にこの永久磁石１０と
１字型ソレノイド】の上下片２とを磁路形成するよう上
下ヨーク片１１をその１字型ソレノイド１の上下片２に
対面させたから、ソレノイド１の空隙はコイル５の外部
となり従来の如くコイル５内でソレノイドの主空隙が存
在するものに比し接極面を大きくとれることができ、且
つコイルの巻数に支障゛が出ることもない効果がある。(Effects) The present invention, as described above, passes the central rod 3 of the single-shaped solenoid 1 having the upper and lower pieces 2 through the coil 5, and connects the upper and lower inner armature surfaces 2b of the upper and lower pieces 2 to the middle yoke 7. Permanent magnets 10 are arranged so that the upper and lower polarized surfaces 8b of the vertical pieces 8 face each other, and the same poles are arranged above and below the middle yoke 7, and furthermore, the permanent magnets 10 are connected to the upper and lower pieces 2 of the single-shaped solenoid. Since the upper and lower yoke pieces 11 face the upper and lower pieces 2 of the single-shaped solenoid 1 to form a magnetic path, the air gap of the solenoid 1 is outside the coil 5, and the main air gap of the solenoid exists inside the coil 5 as in the conventional case. This has the effect that the armature surface can be made larger than that of the conventional one, and there is no problem with the number of turns of the coil.

[Brief explanation of the drawing]

図面第１図は従来例図、第２図乃至第７図は本発明の有
極ソレノイドの一実施例を示し、ｊＩ２図は基本構成の
正面図、第２図は具体的例の分解斜向図、第４図乃至第
７図は夫々興なる実施例図である。１．１字型ソレノイド、２・・・上下片、３・・・中央
棒、５・・・コイル、７・・・中ヨーク、８・・・縦片
、１０・・・永久磁石、１１・・・上下ヨーク片。ｊ１１因第２図第３図第４図　　　　　　　第５　ｐ３１１］１第６図第７図Figure 1 shows a conventional example, Figures 2 to 7 show an embodiment of the polarized solenoid of the present invention, Figure jI2 is a front view of the basic configuration, and Figure 2 is an exploded oblique view of a specific example. 4 to 7 are illustrations of various embodiments. 1. 1-shaped solenoid, 2... upper and lower pieces, 3... central rod, 5... coil, 7... middle yoke, 8... vertical piece, 10... permanent magnet, 11.・Upper and lower yoke pieces. j11 factor Figure 2 Figure 3 Figure 4 Figure 5 p3 11] 1 Figure 6 Figure 7

Claims

[Claims]

(1) A single-shaped solenoid made up of upper and lower pieces with horizontal contact surfaces on the inside and outside, and a central rod that connects the upper and lower pieces,
It consists of a coil through which the central rod is inserted, and vertical pieces located on both sides of the coil, the upper and lower ends of which have upper and lower armature surfaces that face and separate from the left and right inner armature surfaces of the upper and lower pieces of the single-shaped solenoid. Consisting of a middle yoke, four permanent magnets arranged two by two on the left and right so that the same poles abut each other above and below the middle yoke, and upper and lower yoke pieces that hang above and below these permanent magnets on the left and right. A polar solenoid featuring