JP2775217B2 - Permanent magnet, magnetized coil and magnetized method - Google Patents
Permanent magnet, magnetized coil and magnetized methodInfo
- Publication number
- JP2775217B2 JP2775217B2 JP5054964A JP5496493A JP2775217B2 JP 2775217 B2 JP2775217 B2 JP 2775217B2 JP 5054964 A JP5054964 A JP 5054964A JP 5496493 A JP5496493 A JP 5496493A JP 2775217 B2 JP2775217 B2 JP 2775217B2
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- JP
- Japan
- Prior art keywords
- bobbin
- magnetized
- coil
- magnet
- small
- 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.)
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Description
【０００１】[0001]
【産業上の利用分野】この発明は表面に多数の磁極を有
する永久磁石、その着磁コイル及び着磁方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a permanent magnet having a large number of magnetic poles on its surface, its magnetizing coil and its magnetizing method.
【０００２】[0002]
【従来の技術】複写機、磁選機、センサー、磁気カップ
リング、治工具等にはロール状の永久磁石、いわゆるマ
グネットロールがよく使用される。2. Description of the Related Art Roll-shaped permanent magnets, so-called magnet rolls, are often used in copiers, magnetic separators, sensors, magnetic couplings, jigs and the like.
【０００３】従来のマグネットロールを図１０に示す。
図において、４０はシャフト材、４１はシャフト材４０
の外表面には配列された瓦状磁石、４２は瓦状磁石４１
の外表面を被覆する非磁性スリーブであり、このように
して表面に多数個の磁極を有するマグネットロールを得
ている。FIG. 10 shows a conventional magnet roll.
In the figure, 40 is a shaft material, 41 is a shaft material 40
Tiles are arranged on the outer surface of the tile, 42 is a tile-like magnet 41
Is a non-magnetic sleeve that covers the outer surface of the magnetic roller. Thus, a magnet roll having a large number of magnetic poles on the surface is obtained.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、図１０
に示すマグネットロールを製造する場合、シャフト材４
０の外周面に複数の瓦状の小型磁石４１を接着し、その
保護のための非磁性スリーブ４２を取付ける必要があ
り、その工程はすべて手作業であるので、大変面倒であ
った。However, FIG.
When manufacturing the magnet roll shown in FIG.
It is necessary to bond a plurality of tile-shaped small magnets 41 to the outer peripheral surface of the "0" and attach a non-magnetic sleeve 42 for the protection, and all the steps are manual work, which is very troublesome.
【０００５】本発明は、かかる問題点に鑑み、従来のよ
うな組立て工程を必要とせず、容易に製造できるように
した永久磁石を提供することを課題とする。SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a permanent magnet which can be easily manufactured without requiring a conventional assembling process.
【０００６】[0006]
【課題を解決するための手段】本件発明者らは上述の課
題を解決べく鋭意研究した結果、永久磁石を着磁する際
に、表面を小領域に分割して各小領域毎に着磁し、磁石
表面に多数の磁極を形成すればよいことに着目し、本発
明を完成した。Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, when magnetizing a permanent magnet, the surface is divided into small regions and magnetized for each small region. The present invention was completed by focusing on the fact that a large number of magnetic poles should be formed on the magnet surface.
【０００７】即ち、本発明に係る永久磁石は、図１、図
２に示すように、磁石表面を複数の連続する四角形状の
小領域３、４に分割し、各小領域３、４をその辺を接す
る周囲の小領域３、４と異なる磁性に着磁して複数の格
子状の磁極を一体に形成するようにしたことを特徴とす
る。That is, in the permanent magnet according to the present invention, as shown in FIGS. 1 and 2, the surface of the magnet is divided into a plurality of continuous rectangular small areas 3 and 4, and each of the small areas 3 and 4 is divided. a plurality of case magnetized to different magnetic surrounding the small region 3,4 in contact edges
It is characterized in that the child-shaped magnetic poles are formed integrally .
【０００８】また、本発明に係る永久磁石の着磁方法
は、図３、図４に示すように、ボビン５の外周面が複数
の連続する四角形の磁化小領域に分割されるように複数
の導線６、７をボビン５の外周面に巻回し、該ボビン５
内に磁化すべき材料を挿入し、上記磁化小領域を形成す
る四辺の導線６、７には磁化小領域を一周する方向に、
かつその辺を接する周囲の磁化小領域を形成する四辺の
導線にはその四角形の対向する一対の頂点から他の対向
する一対の頂点に向かう方向に電流を流して着磁するよ
うにしたことを特徴とする。In addition, as shown in FIGS. 3 and 4, the method of magnetizing a permanent magnet according to the present invention is such that the outer peripheral surface of the bobbin 5 is divided into a plurality of continuous rectangular magnetized small regions. The conductors 6 and 7 are wound around the outer peripheral surface of the bobbin 5, and the bobbin 5
A material to be magnetized is inserted into the conductors, and the conductors 6 and 7 on the four sides forming the above-mentioned small magnetization region are arranged in a direction around the small magnetization region.
In addition, a current flows in a direction from a pair of opposing vertices of the quadrilateral to a pair of opposing vertices of the quadrilateral to form a magnetized magnet on the four sides forming a peripheral magnetization small region adjacent to the side. Features.
【０００９】図１に示す菱形の磁極３を有する永久磁石
１を着磁する場合、図３に示す着磁コイル８を使用す
る。即ち、ボビン５の円周方向については、被覆銅線６
をボビン５の外周面に円周方向に巻き、軸線方向に所定
ピッチずらして今度は逆方向に巻き、これをボビン５の
軸線方向に繰り返すことにより、円周方向のコイルを形
成する。他方、ボビン５の軸線方向については、被覆銅
線７をボビン５の外周面に軸線方向に伸ばし、ボビン５
の端部で円周方向に所定のピッチずらして折曲げ、他方
のボビン５の端部に向けて軸線方向に伸ばし、これをボ
ビン５の全周にわたって繰り返すことにより、軸線方向
のコイルを形成し、該軸線方向と円周方向とのコイルに
よってボビン５の外周面を複数の連続するほぼ正方形の
磁化小領域に分割する。そして、被覆銅線６、７には図
３の矢印方向に電流を流すことにより、菱形に磁化を与
える磁場を発生させることができる。When magnetizing the permanent magnet 1 having the diamond-shaped magnetic poles 3 shown in FIG. 1, a magnetizing coil 8 shown in FIG. 3 is used. That is, in the circumferential direction of the bobbin 5, the coated copper wire 6
Is wound in the circumferential direction around the outer peripheral surface of the bobbin 5, is shifted in the axial direction by a predetermined pitch, and is wound in the opposite direction, and is repeated in the axial direction of the bobbin 5, thereby forming a coil in the circumferential direction. On the other hand, in the axial direction of the bobbin 5, the coated copper wire 7 is extended in the axial direction on the outer peripheral surface of the bobbin 5, and the bobbin 5
Is bent at a predetermined pitch in the circumferential direction at the end of the bobbin 5, and is extended in the axial direction toward the end of the other bobbin 5, and this is repeated over the entire circumference of the bobbin 5, thereby forming an axial coil. The outer peripheral surface of the bobbin 5 is divided into a plurality of continuous substantially square magnetized small regions by the coils in the axial direction and the circumferential direction. Then, a current is applied to the coated copper wires 6 and 7 in the direction of the arrow in FIG. 3 to generate a magnetic field that gives magnetization in a diamond shape.
【００１０】同様に、図２に示す正方形の磁極４を有す
る永久磁石２を着磁する場合、図４に示す着磁コイル９
を使用する。即ち、一対の被覆銅線６、７を所定のピッ
チをあけてボビン５の外周面に螺旋状に巻き、ボビン５
の端部で円周方向に所定のピッチずらして折曲げ、そこ
から既に巻いた被覆導線６、７と交わるように他方のボ
ビン５端部に向けて螺旋状に巻くことにより、螺旋状の
コイルを形成し、該螺旋状コイルによってボビン５の外
周面を複数の連続する菱形の磁化小領域に分割する。そ
して被覆銅線６、７には図４の矢印方向に電流を流すこ
とにより、正方形に磁化を与える磁場を発生させること
ができる。Similarly, when the permanent magnet 2 having the square magnetic pole 4 shown in FIG. 2 is magnetized, the magnetizing coil 9 shown in FIG.
Use That is, a pair of covered copper wires 6 and 7 are spirally wound around the outer peripheral surface of the bobbin 5 at a predetermined pitch.
At a predetermined pitch in the circumferential direction at the end of the bobbin 5, and spirally wound toward the end of the other bobbin 5 so as to intersect with the covered conductors 6 and 7 already wound therefrom, thereby forming a spiral coil. Is formed, and the outer peripheral surface of the bobbin 5 is divided into a plurality of continuous diamond-shaped magnetization small regions by the spiral coil. Then, a current is applied to the coated copper wires 6 and 7 in the direction of the arrow in FIG. 4 to generate a magnetic field that gives a square magnetization.
【００１１】なお、着磁コイル８、９では２本以上の導
線６、７を使用してもよい。The magnetizing coils 8 and 9 may use two or more conductors 6 and 7.
【００１２】また、導線６、７は剥き出しのまでもよい
が、導線６、７間の隙間にセンダスト合金粉末等の軟磁
性材料粉末と樹脂とを混練したものを充填することによ
り、一層強い磁場を与えることができる。Although the conductors 6 and 7 may be exposed, the gap between the conductors 6 and 7 is filled with a mixture of soft magnetic material powder such as sendust alloy powder and resin and a stronger magnetic field. Can be given.
【００１３】着磁される磁石はＭｎーＡｌーＣを主成分
とする、磁石の軸方向に異方化した棒材が望ましい。Ｍ
ｎーＡｌーＣ磁石の場合、機械加工性、機械的強度に優
れているため、磁石そのものをシャフトに加工したり、
構造体として利用できる。The magnet to be magnetized is preferably a bar mainly composed of Mn-Al-C, which is anisotropic in the axial direction of the magnet. M
Since the n-Al-C magnet has excellent machinability and mechanical strength, the magnet itself can be machined into a shaft,
Can be used as a structure.
【００１４】[0014]
【作用】本発明によれば、磁石表面を複数の連続する四
角形状の小領域に分割し、各小領域をその辺を接する周
囲の小領域と異なる磁性に着磁して複数の格子状の磁極
を一体に形成したことから、所望の性能を有する永久磁
石が能率良く製造されることとなる。According to the present invention, the magnet surface is divided into a plurality of continuous rectangular sub-regions, and each sub-region is magnetized to have a different magnetism from the surrounding sub-regions adjacent to its sides to form a plurality of grid-like sub-regions . pole since formed integrally, so that the permanent magnet having a desired performance can be efficiently produced.
【００１５】また、こうして得られた永久磁石は、磁石
としての組み立てを必要とせず、複写機、磁選機、セン
サー、磁気カップリング治工具等に直接組み込むことが
できる。The permanent magnet thus obtained does not require assembly as a magnet, and can be directly incorporated into a copying machine, a magnetic separator, a sensor, a magnetic coupling jig, and the like.
【００１６】[0016]
【実施例】以下、本発明を図面に示す具体例に基づいて
詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to specific examples shown in the drawings.
【００１７】〔実施例１〕 図５は磁極を菱形に形成した本発明の第１の実施例を示
す。図５(a) は着磁コイル１０を示す。図５(a) におい
て、ボビン１１は内径３０．５ｍｍ、外径３１．５ｍ
ｍ、長さ１８０ｍｍで、被覆銅線１２、１３は直径２．
０ｍｍ、被覆銅線１２、１３間のピッチ１２．６ｍｍ、
又その被覆銅線１２、１３の隙間はセンダスト合金とエ
ポキシ樹脂とを混練した充填材１４によって埋められて
いる。Embodiment 1 FIG. 5 shows a first embodiment of the present invention in which magnetic poles are formed in a diamond shape. FIG. 5A shows the magnetized coil 10. In FIG. 5A, the bobbin 11 has an inner diameter of 30.5 mm and an outer diameter of 31.5 m.
m, the length is 180 mm, and the coated copper wires 12, 13 have a diameter of 2.
0 mm, pitch 12.6 mm between coated copper wires 12 and 13,
The gap between the coated copper wires 12 and 13 is filled with a filler 14 obtained by kneading a sendust alloy and an epoxy resin.
【００１８】図５(b) には本実施例の着磁コイル１０で
着磁した棒状ＭｎーＡｌーＣ磁石１５を示す。棒状Ｍｎ
ーＡｌーＣ磁石１５は直径３０ｍｍ、長さ１７０ｍｍ
で、その軸方向の磁気特性は残留磁束密度０．５５Ｔ
（５５００ガウス）、保磁力２００ｋＡ／ｍ（２５００
エルステッド）、又径方向の磁気特性は残留磁束密度
０．２７Ｔ（２７００ガウス）、保磁力１４４ｋＡ／ｍ
（１８００エルステッド）となっている。FIG. 5B shows a rod-shaped Mn-Al-C magnet 15 magnetized by the magnetizing coil 10 of the present embodiment. Rod-shaped Mn
-Al-C magnet 15 is 30mm in diameter and 170mm in length
The magnetic properties in the axial direction have a residual magnetic flux density of 0.55T.
(5500 gauss), coercive force 200 kA / m (2500
Oersted), and the magnetic properties in the radial direction are: residual magnetic flux density 0.27T (2700 gauss), coercive force 144 kA / m
(1800 Oersted).
【００１９】上記ＭｎーＡｌーＣ磁石１５の着磁に際し
ては、図５(a) に示す着磁コイル１０に着磁すべき棒状
材料を挿入し、１０００Ｖ、２０００Ａ、１０ｍｓのパ
ルス電流を図５(a) 中の矢印の方向に流し磁化する。そ
の時の図５(b) における線分Ｘ−Ｙ上の磁束密度波形デ
ータを図５(c) に示す。When the Mn-Al-C magnet 15 is magnetized, a rod-shaped material to be magnetized is inserted into the magnetized coil 10 shown in FIG. 5A, and a pulse current of 1000 V, 2000 A, and 10 ms is applied to the magnet. (a) Flow in the direction of the arrow in the middle and magnetize. FIG. 5C shows the magnetic flux density waveform data on the line XY in FIG. 5B at that time.
【００２０】本方法では、磁石材の軸方向、径方向の特
性を十分活用でき、かつ磁束を外周面に収束させること
ができる。In this method, the characteristics of the magnet material in the axial and radial directions can be fully utilized, and the magnetic flux can be converged on the outer peripheral surface.
【００２１】〔実施例２〕 図６は磁極を正方形に形成した本発明の第２の実施例を
示す。図６(a) は着磁コイル２０を示す。図６(a) にお
いて、ボビン２１は内径１５．５ｍｍ、外径１６．５ｍ
ｍ、長さ１００ｍｍで、被覆銅線２２、２３は直径１．
６ｍｍ、銅線２２、２３間のピッチ９．４ｍｍ、又その
被覆銅線２２、２３の隙間はセンダスト合金とエポキシ
樹脂を混練した充填材２４によって埋められている。Embodiment 2 FIG. 6 shows a second embodiment of the present invention in which the magnetic poles are formed in a square shape. FIG. 6A shows the magnetized coil 20. In FIG. 6A, the bobbin 21 has an inner diameter of 15.5 mm and an outer diameter of 16.5 m.
m, the length is 100 mm, and the coated copper wires 22, 23 have a diameter of 1.
6 mm, the pitch between the copper wires 22 and 23 is 9.4 mm, and the gap between the coated copper wires 22 and 23 is filled with a filler 24 obtained by kneading a sendust alloy and an epoxy resin.
【００２２】図６(b) には本実施例の着磁コイル２０で
着磁した棒状ＭｎーＡｌーＣ磁石２５を示す。棒状Ｍｎ
ーＡｌーＣ磁石２５は直径１５ｍｍ、長さ９０ｍｍで、
その軸方向の磁気特性は残留磁束密度０．５５Ｔ（５５
００ガウス）、保磁力２００ｋＡ／ｍ（２５００エルス
テッド）、又径方向の磁気特性は残留磁束密度０．２７
Ｔ（２７００ガウス）、保磁力１４４ｋＡ／ｍ（１８０
０エルステッド）となっている。FIG. 6B shows a rod-shaped Mn-Al-C magnet 25 magnetized by the magnetizing coil 20 of this embodiment. Rod-shaped Mn
-Al-C magnet 25 is 15mm in diameter and 90mm in length.
The magnetic properties in the axial direction are such that the residual magnetic flux density is 0.55T (55
00 Gauss), coercive force 200 kA / m (2500 Oersted), and magnetic properties in the radial direction are residual magnetic flux density 0.27.
T (2700 gauss), coercive force 144 kA / m (180
0 Oersted).
【００２３】上記ＭｎーＡｌーＣ磁石２５を着磁するに
際しては、図６(a) に示す着磁コイル２０に棒状素材を
挿入し、８００Ｖ、２０００Ａ、１０ｍｓのパルス電流
を図６(a) 中の矢印の方向に流し磁化した。その時の図
６(b) における線分Ｘ−Ｙ上の磁束密度波形データを図
６(c) に示す。When magnetizing the Mn-Al-C magnet 25, a rod-shaped material is inserted into the magnetizing coil 20 shown in FIG. 6A, and a pulse current of 800 V, 2000 A, 10 ms is applied to the magnet coil 20 shown in FIG. Flowed in the direction of the middle arrow and magnetized. FIG. 6C shows the magnetic flux density waveform data on the line XY in FIG. 6B at that time.
【００２４】本方法では、磁石材の軸方向、径方向の特
性を十分活用でき、かつ磁束を外周面に収束させること
ができる。In this method, the characteristics of the magnet material in the axial and radial directions can be fully utilized, and the magnetic flux can be converged on the outer peripheral surface.
【００２５】〔他の実施例〕 実施例１、２と同じ要領で、円筒状磁石の内周、円錐状
磁石の表面、球状磁石の表面にも同様に、磁石表面を複
数の連続する四角形状の小領域に分割し、各小領域をそ
の辺を接する周囲の小領域と異なる磁性に着磁した複数
の格子状の磁極を一体に形成することができる。[Other Embodiments] In the same manner as in the first and second embodiments, the inner surface of a cylindrical magnet, the surface of a conical magnet, and the surface of a spherical magnet are similarly duplicated.
It is divided into a number of consecutive rectangular small areas, and each small area is
Multiple magnetized to different magnetism from the surrounding small area that touches the side of
Can be integrally formed.
【００２６】即ち、図７は本発明の第３の実施例を示
し、外径５０ｍｍ、内径３１ｍｍ、高さ５０ｍｍの円筒
状ＭｎーＡｌーＣ磁石３０の内周面には複数の連続する
四角形の磁極が着磁され形成されている。FIG. 7 shows a third embodiment of the present invention. The inner peripheral surface of a cylindrical Mn-Al-C magnet 30 having an outer diameter of 50 mm, an inner diameter of 31 mm and a height of 50 mm is provided with a plurality of continuous squares. Are magnetized and formed.
【００２７】本例の磁石３０を図６(b) に示す磁石２５
と組合わせ使用すると、円周方向及びスラスト方向に有
効な磁気カップリングを製造することができる。The magnet 30 of this embodiment is replaced with the magnet 25 shown in FIG.
When used in combination, a magnetic coupling effective in the circumferential direction and the thrust direction can be manufactured.
【００２８】また、図８は本発明の第４の実施例を示
し、底円の直径３０ｍｍ、高さ３０ｍｍの円錐状Ｍｎー
ＡｌーＣ磁石３１の表面には複数の連続する台形の磁極
が着磁され形成されている。本例の磁石３１はギヤ比を
任意に変えることのできる磁気歯車等に有用である。FIG. 8 shows a fourth embodiment of the present invention, wherein a plurality of continuous trapezoidal magnetic poles are provided on the surface of a conical Mn-Al-C magnet 31 having a diameter of a bottom circle of 30 mm and a height of 30 mm. It is magnetized and formed. The magnet 31 of this example is useful for a magnetic gear or the like whose gear ratio can be arbitrarily changed.
【００２９】さらに、図９は本発明の第５の実施例を示
し、直径５０ｍｍの球状磁石３２の表面には磁石表面を
複数の連続する四角形状の小領域に分割し、各小領域を
その辺を接する周囲の小領域と異なる磁性に着磁した複
数の格子状の磁極を一体に形成されている。FIG. 9 shows a fifth embodiment of the present invention. The surface of a spherical magnet 32 having a diameter of 50 mm is provided with a magnet surface.
It is divided into a plurality of continuous rectangular small areas, and each small area is
A complex magnetized to a different magnetism from the surrounding small area that touches the side
A number of lattice-shaped magnetic poles are integrally formed.
【００３０】[0030]
【発明の効果】以上のように、本発明によれば、所望の
永久磁石を従来の１／１０程度の時間で能率よく製造で
き、又製造コストが１／６程度になった。As described above, according to the present invention, a desired permanent magnet can be efficiently manufactured in about 1/10 of the conventional time, and the manufacturing cost is reduced to about 1/6.
【図１】 本発明に係る永久磁石を示す斜視図である。FIG. 1 is a perspective view showing a permanent magnet according to the present invention.
【図２】 本発明に係る磁極形状の異なる永久磁石を示
す斜視図である。FIG. 2 is a perspective view showing permanent magnets having different magnetic pole shapes according to the present invention.
【図３】 図１の永久磁石を着磁する為の着磁コイルを
示す斜視図である。FIG. 3 is a perspective view showing a magnetizing coil for magnetizing the permanent magnet of FIG. 1;
【図４】 図２の永久磁石を着磁する為の着磁コイルを
示す斜視図である。4 is a perspective view showing a magnetizing coil for magnetizing the permanent magnet of FIG.
【図５】 本発明の第１実施例による着磁コイル、それ
によって着磁された永久磁石及び着磁時における磁石の
ＸーＹ線分上の表面磁束密度の変化を示す図である。FIG. 5 is a diagram showing a magnetized coil according to a first embodiment of the present invention, a permanent magnet magnetized by the magnetized coil, and a change in surface magnetic flux density on an XY line segment of the magnet when magnetized.
【図６】 本発明の第２実施例による着磁コイル、それ
によって着磁された永久磁石及び着磁時における磁石の
ＸーＹ線分上の表面磁束密度の変化を示す図である。FIG. 6 is a diagram illustrating a magnetized coil according to a second embodiment of the present invention, a permanent magnet magnetized thereby, and a change in surface magnetic flux density on the XY line segment of the magnet during magnetization.
【図７】 本発明の第３実施例による永久磁石を示す斜
視図である。FIG. 7 is a perspective view illustrating a permanent magnet according to a third embodiment of the present invention.
【図８】 本発明の第４実施例による永久磁石を示す斜
視図である。FIG. 8 is a perspective view illustrating a permanent magnet according to a fourth embodiment of the present invention.
【図９】 本発明の第５実施例による永久磁石を示す斜
視図である。FIG. 9 is a perspective view illustrating a permanent magnet according to a fifth embodiment of the present invention.
【図１０】 従来の永久磁石を示す一部切開斜視図であ
る。FIG. 10 is a partially cutaway perspective view showing a conventional permanent magnet.
１ 永久磁石 ３、４ 小領域 ５ ボビン ６、７ 導線 ８、９、１０ 着磁コイル １１ ボビン １２、１３ 被覆導線 １５ 永久磁石 ２０ 着磁コイル ２１ ボビン ２２、２３ 被覆導線 ２５、３０、３１、３２ 永久磁石 DESCRIPTION OF SYMBOLS 1 Permanent magnet 3, 4 Small area 5 Bobbin 6, 7 Conductor 8, 9, 10 Magnetizing coil 11 Bobbin 12, 13 Coated conductor 15 Permanent magnet 20 Magnetizing coil 21 Bobbin 22, 23 Coated conductor 25, 30, 31, 32 permanent magnet
フロントページの続き (56)参考文献 特開 昭61−280603（ＪＰ，Ａ) 実開 昭58−187110（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) H01F 7/02 H01F 13/00Continuation of the front page (56) References JP-A-61-280603 (JP, A) JP-A-58-187110 (JP, U) (58) Fields investigated (Int. Cl. 6 , DB name) H01F 7 / 02 H01F 13/00
Claims (5)
領域に分割され、各小領域がその辺を接する周囲の小領
域と異なる磁性に着磁されて複数の格子状の磁極が一体
に形成されていることを特徴とする永久磁石。1. A magnet surface is divided into a plurality of continuous rectangular small areas, each of which is magnetized to have a different magnetism from a surrounding small area adjacent to its side, and a plurality of lattice-shaped magnetic poles are integrated.
Permanent magnets, characterized in that it is formed.
の外周面に円周方向に巻き、軸線方向に所定ピッチずら
して逆方向に巻き、この巻き方をボビン軸線方向に繰り
返すことにより円周方向のコイルが形成されている一
方、 ボビンの軸線方向には被覆銅線をボビンの外周面に軸線
方向に伸ばし、ボビン端部で円周方向に所定のピッチず
らして折曲げて軸線方向に伸ばし、この巻き方をボビン
全周にわたって繰り返すことにより軸線方向のコイルが
形成されていることを特徴とする永久磁石の着磁コイ
ル。2. In the circumferential direction of the bobbin, a coated copper wire is circumferentially wound on the outer peripheral surface of the bobbin, wound in the opposite direction with a predetermined pitch shifted in the axial direction, and this winding method is repeated in the axial direction of the bobbin. While a coil is formed in the circumferential direction, a coated copper wire is extended in the axial direction of the bobbin in the axial direction on the outer peripheral surface of the bobbin, and is bent at a predetermined pitch in the circumferential direction at the bobbin end and bent. A permanent magnet magnetized coil characterized in that a coil in the axial direction is formed by repeating this winding method over the entire circumference of the bobbin.
ボビンの外周面に螺旋状に巻き、ボビン端部で円周方向
に所定のピッチずらして折曲げ、そこから既に巻いた被
覆導線と交わるように螺旋状に巻くことにより螺旋状コ
イルが形成されていることを特徴とする永久磁石の着磁
コイル。3. A pair of covered copper wires are spirally wound around an outer peripheral surface of a bobbin at a predetermined pitch, bent at a predetermined pitch in a circumferential direction at an end of the bobbin, and are then wound therefrom. Characterized in that a spiral coil is formed by spirally winding so as to intersect with the coil.
末と樹脂との混練材料で充填されている請求項２又は３
記載の永久磁石の着磁コイル。4. The gap between the covered conductors is filled with a kneading material of a soft magnetic material powder and a resin.
A magnetized coil of the described permanent magnet.
の磁化小領域に分割されるように複数の導線をボビンの
外表面に巻回した着磁コイルを使用し、 該着磁コイルのボビン内に磁化すべき材料を挿入し、 上記磁化小領域を形成する四辺の導線には磁化小領域を
一周する方向に、かつその辺を接する周囲の磁化小領域
を形成する四辺の導線にはその四角形の対向する一対の
頂点から他の対向する一対の頂点に向かう方向に電流を
流して着磁するようにしたことを特徴とする永久磁石の
着磁方法。5. A magnetized coil having a plurality of conductive wires wound on the outer surface of the bobbin so that the outer surface of the bobbin is divided into a plurality of continuous rectangular magnetized small regions, wherein the bobbin of the magnetized coil is used. The material to be magnetized is inserted into the four-sided conductor forming the above-mentioned small magnetization region in the direction surrounding the small-magnetization region, and the four-sided conductor forming the small magnetization region surrounding the side in contact with the small-magnetization region. A magnetizing method for a permanent magnet, characterized in that a current flows in a direction from a pair of opposing vertexes of a quadrangle to another pair of opposing vertices to perform magnetization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5054964A JP2775217B2 (en) | 1993-02-19 | 1993-02-19 | Permanent magnet, magnetized coil and magnetized method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5054964A JP2775217B2 (en) | 1993-02-19 | 1993-02-19 | Permanent magnet, magnetized coil and magnetized method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06244020A JPH06244020A (en) | 1994-09-02 |
| JP2775217B2 true JP2775217B2 (en) | 1998-07-16 |
Family
ID=12985352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5054964A Expired - Fee Related JP2775217B2 (en) | 1993-02-19 | 1993-02-19 | Permanent magnet, magnetized coil and magnetized method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2775217B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7289115B2 (en) * | 2018-11-15 | 2023-06-09 | 新電元メカトロニクス株式会社 | electromagnet for adsorption |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58187110U (en) * | 1982-06-08 | 1983-12-12 | ニチレイマグネツト株式会社 | Permanent magnetic adsorption device that is easy to attach and detach |
| JPS61280603A (en) * | 1985-06-05 | 1986-12-11 | Nichirei Magnet Kk | Rubber magnetic clip and manufacture thereof |
-
1993
- 1993-02-19 JP JP5054964A patent/JP2775217B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06244020A (en) | 1994-09-02 |
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