JPS62271404A - Electromagnetic actuator - Google Patents
Electromagnetic actuatorInfo
- Publication number
- JPS62271404A JPS62271404A JP61115440A JP11544086A JPS62271404A JP S62271404 A JPS62271404 A JP S62271404A JP 61115440 A JP61115440 A JP 61115440A JP 11544086 A JP11544086 A JP 11544086A JP S62271404 A JPS62271404 A JP S62271404A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- permanent magnet
- iron core
- magnetic pole
- core
- 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.)
- Granted
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 46
- 230000004907 flux Effects 0.000 claims description 24
- 238000004804 winding Methods 0.000 claims description 14
- 239000000696 magnetic material Substances 0.000 claims description 7
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 abstract description 22
- 238000010586 diagram Methods 0.000 description 10
- 230000035945 sensitivity Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Landscapes
- Electromagnets (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
〔産業上の利用分野〕
本発明は、機械的安定状態の保持および該機械的安定状
態からの変位を電磁的に操作する装置、例えば、電磁施
錠装置、弁ｊｉ！５８作装置、型装置電器、電磁クラッ
チ等に用いられる電磁アクチュエータに関する。Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a device for electromagnetically manipulating the maintenance of a mechanically stable state and the displacement from the mechanically stable state, for example, Electromagnetic locking device, valve ji! This invention relates to electromagnetic actuators used in 58 machine tools, mold machine appliances, electromagnetic clutches, etc.
従来、ＰＣＴ／ＪＰ８４１０００８４ 。 Previously, PCT/JP84100084.
ＰＣＴ／Ｊ Ｐ８ ５１０ Ｏ３１３、ＰＣＴ／Ｊ
Ｐ８５１００３１４．ＰＣＴ／ＪＰ８５１００５３６に
おいて本発明者は微小電流で大きな推力を発生する電磁
アクチュエータを提案した。PCT/J P8 510 O313, PCT/J
P85100314. In PCT/JP85100536, the present inventor proposed an electromagnetic actuator that generates a large thrust with a small current.
この電磁アクチュエータは第６図に示されるように固定
鉄心１と、該固定鉄心１に対して矢印１４ａまたは１４
ｂ方向に変移する可動鉄心２と、通電時に該可動鉄心２
に第１の磁束８を作用させるように巻回された電気巻ａ
４と、該第１の磁束８に第２の磁束９を分流させ、並列
に作用させるように該固定鉄心ｌに設けられた永久磁石
５とから成るものである。As shown in FIG. 6, this electromagnetic actuator has a fixed iron core 1 and an arrow 14a or 14
A movable iron core 2 that moves in the b direction, and a movable iron core 2 that moves in the direction b, and when energized
an electric winding a wound so as to apply a first magnetic flux 8 to
4, and a permanent magnet 5 provided on the fixed iron core 1 so as to cause a second magnetic flux 9 to branch into the first magnetic flux 8 and act in parallel.
しかし、上述の従来装置は永久磁石による第２の磁束の
左右の分流比を所要範囲に限定する手段を設けていない
ため、必ずしも高感度の特性を得ることができないとい
う問題点があった。However, the above-mentioned conventional device does not have a means for limiting the left and right branching ratio of the second magnetic flux by the permanent magnet to a required range, and therefore has the problem that high sensitivity characteristics cannot necessarily be obtained.
そこで１本発明は上述の問題点を解決するために提案さ
れたもので、より高感度の特性を有し、微電流で大きな
推力を発生する電磁アクチュエータを提供することを目
的とする。The present invention was proposed in order to solve the above-mentioned problems, and it is an object of the present invention to provide an electromagnetic actuator that has characteristics of higher sensitivity and generates a large thrust with a small current.
まず、第１図（ａ）を参照して本発明の詳細な説明する
。First, the present invention will be explained in detail with reference to FIG. 1(a).
永久磁石５による磁束９の左側の固定鉄心１への分流を
φｍ＆、右側の固定鉄心ｌへの分流をφｍｂとし、電気
巻線４の通電による磁束８をφｉとする。Let φm& be the shunt of the magnetic flux 9 caused by the permanent magnet 5 to the left fixed iron core 1, φmb be the shunt to the right fixed iron core 1, and let φi be the magnetic flux 8 caused by energization of the electric winding 4.
ここで、φｉとφｍｂが同一方向に作用した場合、可動
鉄心２と左右各々の固定鉄心１との間の吸引力Ｆａ、Ｆ
ｂは次式で示される。Here, when φi and φmb act in the same direction, the attractive forces Fa and F between the movable core 2 and the left and right fixed cores 1
b is expressed by the following formula.
Ｆａ＝Ｋ（φｉ−φｍａ）２・・−（１）Ｆｂ＝Ｋ（φ
ｉ＋φｍｂ） ２−・・（２）ここで、可動鉄心２の磁
極面２ａ、２ｂと、左右の各々の固定鉄心１の磁極面１
ａ、ｌｂとの間隙長を各々ｄ１＋ｄ２および永久磁石５
の磁極面５ａとの間隙長Δ、各各種極面面積をＳ９間隙
の透磁率を川、電気巻線４の通電電流を工、永久磁石５
の起磁力をＨｐ、比例定数をＫとする。Fa=K(φi-φma)2...-(1)Fb=K(φ
i+φmb) 2-...(2) Here, the magnetic pole surfaces 2a and 2b of the movable iron core 2 and the magnetic pole surfaces 1 of each of the left and right fixed iron cores 1
The gap length between a and lb is d1+d2 and the permanent magnet 5, respectively.
The gap length Δ with the magnetic pole surface 5a of
Let Hp be the magnetomotive force of , and K be the proportionality constant.
ここで、単純化するため、磁路を形成する磁性体の磁気
抵抗、および、漏洩磁束を無視すれば、φｉ＝Ｎ・■・
ル・Ｓ／（ｄｔ＋ｄ２）・・・（３）φｍａ＝Ｈｐ−ｇ
・ｓ／ （ｄｔ ＋Ａ） −（４）φｍｂ＝Ｈｐ−ｈ
・Ｓ／ （ｄ２＋Δ） −（５）となる。Here, for simplification, if we ignore the magnetic resistance of the magnetic material forming the magnetic path and the leakage magnetic flux, φi=N・■・
le・S/(dt+d2)...(3)φma=Hp-g
・s/ (dt +A) −(4)φmb=Hp−h
・S/(d2+Δ)−(5).
ここで電気巻線４の通電時に可動鉄心２に作用する実効
力をＦｔとすると、
Ｆｔ＝Ｆｂ−Ｆａ＝
Ｋ（Ｎ−Ｉ−ル・Ｓ／ （ｄｔ ＋ｄ２ ） ） ２ｘ
（２（Ｈｐ／Ｎ・Ｉ）Ｘ （（ｄ１＋ｄ２）／（＋ｄｔ
＋Δ）＋ （ｄｔ ＋ｄ２ ）／ （ｄ２＋Δ））−
（（ｄｌ ＋ｄ２）／ （ｄｔ ＋Δ））２−（（
ｄｌ ＋ ｄｌ）／ （ｄ２＋Δ））２ （Ｈｐ／Ｎ・
Ｉ）２〕・・・（６）
ここで、本発明装置と同一形状、寸法の従来装置のの可
動鉄心２に作用する電磁力をＦｃ、スプリングにより可
動鉄心２に作用する抗力をＦｓとすれば、周知のように
電気巻線４通電時に可動鉄心２に作用する実効力Ｆｏは
。Here, if the effective force acting on the movable iron core 2 when the electric winding 4 is energized is Ft, then Ft=Fb-Fa=K(N-I-R・S/(dt+d2)) 2x
(2(Hp/N・I)X ((d1+d2)/(+dt
+Δ)+ (dt +d2)/ (d2+Δ))−
((dl +d2)/ (dt +Δ))2-((
dl + dl)/ (d2+Δ))2 (Hp/N・
I)2]...(6) Here, let Fc be the electromagnetic force acting on the movable core 2 of the conventional device having the same shape and dimensions as the device of the present invention, and Fs be the drag force acting on the movable core 2 due to the spring. For example, as is well known, the effective force Fo acting on the movable iron core 2 when the electric winding 4 is energized is:
Ｆｏ＝ＦＣ−Ｆｓ＝Ｋ（（ＮＩＪＩＩＩル＠Ｓ／（ｄｔ
＋ ｄｌ）） ２−Ｆｓ・−・（７） とｌｘ６゜こ
こで単純化のためにＦｓを無視し、（６）式と（７）式
の比を求めれば、
Ｆｔ／Ｆｏ ′−（Ａ （Ｈｐ／Ｎ・Ｉ） ２＋２Ｂ
（Ｈｐ／Ｎ−Ｉ））・・・（８）
Ａ＝ （（ｄｒ ＋ｄ２ ）／ （ｄｔ ＋Δ））２−
（（ｄｉ ＋ｄ２）／ （ｄ２＋Δ））２・・・（９
）
Ｂ＝ （ｄｌ ＋ｄ２）／ （ｄｉ＋Δ） ＋ （ｄｔ
＋ｄ２）／（ｄ２＋Δ）・・・（１０）を得ることが
できる。Fo=FC-Fs=K((NIJIII @S/(dt
+ dl)) 2-Fs・-・(7) and lx6゜If we ignore Fs for simplicity and find the ratio of equations (6) and (7), we get Ft/Fo'-(A (Hp/N・I) 2+2B
(Hp/N-I))...(8) A= ((dr +d2)/(dt +Δ))2-
((di +d2)/(d2+Δ))2...(9
) B= (dl +d2)/ (di+Δ) + (dt
+d2)/(d2+Δ)...(10) can be obtained.
ここで、以上の関係をＨｐ／Ｎ−Ｉをパラメータとして
、（ｃｉｔ＋Δ）／（ｄｔ＋ｄ２）の変化で、Ｆｔ／Ｆ
ｏをグラフにて求めると第５図に示されるようになる。Here, the above relationship is expressed as Ft/F by changing (cit+Δ)/(dt+d2) with Hp/N-I as a parameter.
If o is determined graphically, it will be as shown in FIG.
この第５図から本発明装置は該電気巻線通電時、（ｄ１
＋Δ）／（ｄｔ＋ｄ２）の数値が０．２以上１．０以下
の範囲で、かつ、Ｈｐ／Ｎ−Ｉの数値が０．２以上２．
０以下の場合高感度の特性を得ることができるを知見し
た。As shown in FIG. 5, when the electric winding is energized, (d1
+Δ)/(dt+d2) is in the range of 0.2 or more and 1.0 or less, and Hp/N-I is 0.2 or more and 2.
It has been found that when the value is 0 or less, high sensitivity characteristics can be obtained.
次に、（６）式を変形すると、
Ｆｔ＝Ｋ（ル・Ｓ／ （ｄｌ ＋ｄ２）） ２ （２Ｂ
・Ｈｐ−Ｎ−Ｉ−Ａ−Ｈｐ２）−（ｌ Ｌ）となる。Next, by transforming equation (6), we get Ft=K(le・S/(dl +d2)) 2 (2B
・Hp-N-I-A-Hp2)-(l L).
ここで、Ｋ、鉢、５．ｄｌ ＋ｄ２ 、Ｈｐ、Ｎを設計
上決定すれば、実効力は電流■に比例し、しかも、ある
電流値で動作する電磁アクチュエータを製作できるので
、過電流継電器の瞬時引き外し装置等に応用できる。Here, K, pot, 5. If dl + d2, Hp, and N are determined in design, it is possible to manufacture an electromagnetic actuator whose effective force is proportional to the current (2) and which operates at a certain current value, so it can be applied to instantaneous tripping devices for overcurrent relays, etc.
本発明は上述の知見に基づいて成立するもので、固定鉄
心と、該固定鉄心に対して変移する可動鉄心と、通電時
に該可動鉄心に第１の磁束を作用させるように巻回され
た電気巻線と、該第１の磁束に第２の磁束を並列に分流
させて作用させるように該固定鉄心または該可動、鉄心
に設けた永久磁石とから成る電磁アクチュエータを改良
するもので、
該可動鉄心の一方の端面側磁極面から対面する該固定鉄
心の磁極面間の磁気抵抗値および該可動鉄心の側面側磁
極面から該永久磁石の磁極面間の磁気抵抗値の和と、該
可動鉄心の両端面側磁極面から各々対面する該固定鉄心
の磁極面間の一磁気抵抗値の和との比が０．２以上１．
０以下で、かつ、該永久磁石起磁力と、該電気巻線の通
電による起磁力の比が０．２以上２．０以下とする手段
を設けることを特徴とする電磁アクチュエータである。The present invention was established based on the above-mentioned knowledge, and includes a fixed iron core, a movable iron core that moves with respect to the fixed iron core, and an electric wire wound so as to apply a first magnetic flux to the movable iron core when energized. This is an improvement to an electromagnetic actuator comprising a winding and a permanent magnet provided on the fixed iron core or the movable iron core so that the second magnetic flux is shunted in parallel to the first magnetic flux. The sum of the magnetic resistance value between the magnetic pole surfaces of the fixed iron core facing from one end side magnetic pole surface of the iron core, the magnetic resistance value between the side magnetic pole surface of the movable iron core and the magnetic pole surface of the permanent magnet, and the movable iron core. The ratio of the sum of the magnetic resistance values between the magnetic pole surfaces of the fixed core facing each other from the magnetic pole surfaces on both end surfaces of the fixed core is 0.2 or more and 1.
0 or less and the ratio of the magnetomotive force of the permanent magnet to the magnetomotive force caused by energization of the electric winding is 0.2 or more and 2.0 or less.
本発明によれば、可動鉄心の一方の端面側磁極面から対
面する固定鉄心の磁極面間の磁気抵抗値および該可動鉄
心の側面側磁極面から該永久磁石の磁極面間の磁気抵抗
値の和と、該可動鉄心の両端面側磁極面から各々対面す
る該固定鉄心の磁極面間の磁気抵抗値の和との比が０．
２以上１．０以下で、かつ、該永久磁石起磁力と、該電
気巻線通電による起磁力の比が０．２以上２．０以下と
する手段を設けるため、常に高特性の特性を得る。According to the present invention, the magnetic resistance value between the magnetic pole faces of the fixed iron facing from one end face side magnetic pole face of the movable iron core, and the magnetic resistance value between the side face side magnetic pole face of the movable iron core and the magnetic pole face of the permanent magnet. The ratio of the sum of the magnetic resistance values between the magnetic pole surfaces of the fixed iron core facing each other from the magnetic pole surfaces on both end surfaces of the movable iron core is 0.
2 or more and 1.0 or less, and the ratio of the magnetomotive force of the permanent magnet to the magnetomotive force caused by energization of the electric winding is provided with a means of 0.2 or more and 2.0 or less, so that high characteristics are always obtained. .
このため、常に微電力で大きな推力を発生する。Therefore, a large thrust is always generated with a small amount of electric power.
以下、本発明を図面を参照してその実施例に基づいて説
明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments with reference to the drawings.
第１図（ａ）（ｂ）（ｃ）は本発明の第１の実施例の説
明図である。FIGS. 1(a), 1(b), and 1(c) are explanatory diagrams of a first embodiment of the present invention.
本実施例は固定鉄心１と、該固定鉄心１に対して変移す
る可動鉄心２と、通電時に該可動鉄心２に第１の磁束８
を作用させるように巻回された電気巻線４と、第１の磁
束８に第２の磁束９を並列に分流させて作用させるよう
に固定鉄心ｌまたは可動鉄心２に設けた永久磁石５とか
ら成る。This embodiment includes a fixed core 1, a movable core 2 that moves relative to the fixed core 1, and a first magnetic flux 8 that flows through the movable core 2 when energized.
an electric winding 4 wound so as to act on it, and a permanent magnet 5 provided on the fixed iron core l or the movable iron core 2 so as to make the second magnetic flux 9 act on the first magnetic flux 8 by branching it in parallel. Consists of.
さらに、可動鉄心２の一方の端面側磁極面２ａまたは２
ｂから対面する固定鉄心１の磁極面１ａまたはｌｂ間の
磁気抵抗値および可動鉄心２の側面側磁極面２Ｃから永
久磁石５の磁極面５ａ間の磁気抵抗値の和と、可動鉄心
２の両端面側磁極面２ａ、２ｂから各々対面する固定鉄
心１の磁極面１ａ、ｌｂ間の磁気抵抗値の和との比が０
．２以上１．０以下とする手段であるスプリング３を可
動鉄心２の両側に配設する。Furthermore, one end face side magnetic pole face 2a or 2 of the movable iron core 2
The sum of the magnetic resistance value between the magnetic pole faces 1a or lb of the fixed iron core 1 facing from b and the magnetic resistance value between the side magnetic pole face 2C of the movable iron core 2 and the magnetic pole face 5a of the permanent magnet 5, and both ends of the movable iron core 2. The ratio of the sum of the magnetic resistance values between the magnetic pole surfaces 1a and lb of the fixed iron core 1 facing each other from the surface-side magnetic pole surfaces 2a and 2b is 0.
．． Spring 3, which is a means for setting the value between 2 and 1.0, is disposed on both sides of the movable iron core 2.
これにより、永久磁石５の磁束９の分流比が所範囲に限
定される。Thereby, the division ratio of the magnetic flux 9 of the permanent magnet 5 is limited to a predetermined range.
さらに、永久磁石５の起磁力と、電気巻線４の通電によ
る起磁力の比が０．２以上２．０以下とする手段として
電気巻線４の巻数を調整する。Furthermore, the number of turns of the electric winding 4 is adjusted as a means for making the ratio of the magnetomotive force of the permanent magnet 5 and the magnetomotive force caused by energization of the electric winding 4 to be 0.2 or more and 2.0 or less.
あるいは永久磁石５の起磁力が所要のものを用いてもよ
い。Alternatively, a permanent magnet 5 having a required magnetomotive force may be used.
本実施例は、三位置安定で高感度電磁アクチュエータと
して適用できる。This embodiment can be applied as a three-position stable and highly sensitive electromagnetic actuator.
次に、本発明の第２の実施例を第２図を参照して説明す
る。 ′
永久磁石５による第２の磁束９の左右の分流比を所要範
囲に限定する手段は可動鉄心２の片方のスプリング３と
反対側の非磁性体６ａとにより構成される。Next, a second embodiment of the present invention will be described with reference to FIG. ' The means for limiting the left and right branching ratio of the second magnetic flux 9 by the permanent magnet 5 to a required range is constituted by the spring 3 on one side of the movable iron core 2 and the non-magnetic body 6a on the opposite side.
永久磁石５は非磁性体６ａに接触し、可動鉄心２は非磁
性体６ａに対してｖｃ離する。The permanent magnet 5 contacts the non-magnetic body 6a, and the movable iron core 2 is separated by vc from the non-magnetic body 6a.
次に、本発明の第３の実施例を第３図を参照して説明す
る。Next, a third embodiment of the present invention will be described with reference to FIG.
第２図の実施例と同様に、永久磁石５による第２の磁束
９の左右の分流比を所要範囲に限定する手段は可動鉄心
２の片方のスプリング３と反対側の非磁性体６ｂとによ
り構成される。Similar to the embodiment shown in FIG. 2, the means for limiting the left and right branching ratio of the second magnetic flux 9 by the permanent magnet 5 to a required range is provided by the spring 3 on one side of the movable iron core 2 and the non-magnetic body 6b on the opposite side. configured.
永久磁石５は非磁性体６ｂとは接触せずに、離隔して配
設されるのでラッチング特性を得やすい。Since the permanent magnet 5 is arranged apart from the non-magnetic material 6b without contacting it, it is easy to obtain latching characteristics.
第４図（ａ）（ｂ）（ｃ）（ｄ）は、本実施例の永久磁
石磁極面の模式構造図である。FIGS. 4(a), 4(b), 4(c), and 4(d) are schematic structural diagrams of the permanent magnet pole surface of this embodiment.
第２図、第３図の実施例と同様に永久磁石５の周囲には
磁性体は配設されていない。Similar to the embodiments shown in FIGS. 2 and 3, no magnetic material is arranged around the permanent magnet 5.
第４図（ａ）は第１図の実施例の永久磁石５の説明図で
、永久磁石５の周囲には磁性体は配設されていない。FIG. 4(a) is an explanatory diagram of the permanent magnet 5 of the embodiment shown in FIG. 1, and no magnetic material is arranged around the permanent magnet 5. FIG.
これに対して第４図（ｂ）の実施例では永久磁石５の全
面に磁性体７ａを接して配設される。On the other hand, in the embodiment shown in FIG. 4(b), the magnetic body 7a is disposed in contact with the entire surface of the permanent magnet 5.
第４図（ｃ）の実施例では永久磁石５の両側面に接して
磁性体７ｂが配設される。In the embodiment shown in FIG. 4(c), magnetic bodies 7b are disposed in contact with both side surfaces of the permanent magnet 5.
第４図（ｄ）の実施例では永久磁石５と所要間隙を介し
て磁性体７Ｃが配設される。In the embodiment shown in FIG. 4(d), a magnetic body 7C is disposed with a required gap from the permanent magnet 5.
従って、永久磁石５の磁束９の一部分または大部分は、
磁性体７ａ、７ｂ、７ｃに分流し、ラッチング保磁力を
減少させる。。Therefore, a part or most of the magnetic flux 9 of the permanent magnet 5 is
The flow is divided into the magnetic bodies 7a, 7b, and 7c to reduce the latching coercive force. .
特に、第４図（ｂ）の実施例では保磁力は消去し、通電
時動作、停電時スプリング力による復帰特性を有する。Particularly, in the embodiment shown in FIG. 4(b), the coercive force is eliminated, and it has a characteristic of operating when energized and restoring by spring force during power outage.
さらに、ソレノイド通電による磁束８も磁性体７ａ、７
ｂ、７ｃに分流し、永久磁石５の磁束を相殺する方向に
作用するため、高感度特性を発揮する。Furthermore, the magnetic flux 8 due to the energization of the solenoid is also
b and 7c, and acts in a direction to cancel the magnetic flux of the permanent magnet 5, thus exhibiting high sensitivity characteristics.
本発明は以上説明したように、磁気回路における磁気抵
抗値および永久磁石および電磁石起磁力を所要範囲に限
定する手段を設けるため、常に高特性の特性を得る。As described above, the present invention provides means for limiting the magnetic resistance value and the magnetomotive force of the permanent magnets and electromagnets in the magnetic circuit to the required ranges, so that high characteristics are always obtained.
このため、常に微電流で大きな推力を発生するという効
果を奏する。Therefore, it is possible to always generate a large thrust with a small current.
第１図（ａ）（ｂ）（ｃ）は本発明の第１の実施例の説
明図、第２図は本発明の第２の実施例の説明図、第３図
は本発明の第３の実施例の説明図、第４図（ａ）（ｂ）
（ｃ）（ｄ）は本実施例を構成する永久磁石の取付状態
説明図、第５図は電磁アクチュエータの特性説明図、第
６図は従来装置の説明図である。
■・・・固定鉄心
２・・・可動鉄心
３・・・スプリング
４・・・電気巻線
５・・・永久磁石
６ａ、６ｂ・・・非磁性体
７ａ、７ｂ、７ｃｍ−・ｆｇ磁性
体・・・第１の磁束
９・・・第２の磁束
出 願 人 三菱鉱業セメント株式会社岩崎技研工業株
式会社1(a), (b), and (c) are explanatory diagrams of a first embodiment of the present invention, FIG. 2 is an explanatory diagram of a second embodiment of the present invention, and FIG. 3 is a diagram of a third embodiment of the present invention. Explanatory diagram of the embodiment, FIG. 4(a)(b)
(c) and (d) are explanatory diagrams of the mounting state of the permanent magnets constituting this embodiment, FIG. 5 is an explanatory diagram of the characteristics of the electromagnetic actuator, and FIG. 6 is an explanatory diagram of the conventional device. ■...Fixed iron core 2...Movable iron core 3...Spring 4...Electric winding 5...Permanent magnets 6a, 6b...Non-magnetic material 7a, 7b, 7cm-・fg magnetic material・...First magnetic flux 9...Second magnetic flux Applicant Mitsubishi Mining and Cement Co., Ltd. Iwasaki Giken Kogyo Co., Ltd.
Claims (1)
と、通電時に該可動鉄心に第１の磁束を作用させるよう
に巻回された電気巻線 と、該第１の磁束に第２の磁束を並列に分流させて作用
させるように該固定鉄心または該可動鉄心に設けた永久
磁石とから成る電磁アクチュエータにおいて、 該可動鉄心の一方の端面側磁極面から対面 する該固定鉄心の磁極面間の磁気抵抗値および該可動鉄
心の側面側磁極面から該永久磁石の磁極面間の磁気抵抗
値の和と、該可動鉄 心の両端面側磁極面から各々対面する該固 定鉄心の磁極面間の磁気抵抗値の和との比が０．２以上
１．０以下で、かつ、該永久磁石起磁力と、該電気巻線
の通電による起磁力の比が０．２以上２．０以下とする
手段を設けることを特徴とする電磁アクチュエータ。 ２ 該永久磁石の全面に磁性体を接して配設した特許請
求の範囲第１項記載の電磁アクチュエータ。 ３ 該永久磁石の両側面に接して磁性体を配設した特許
請求の範囲第１項記載の電磁アク チュエータ。 ４ 該永久磁石と所要間隙を介して磁性体を配設した特
許請求の範囲第１項記載の電磁アクチュエータ。[Scope of Claims] 1. A fixed core, a movable core that moves with respect to the fixed core, an electric winding wound so as to apply a first magnetic flux to the movable core when energized, and the first In an electromagnetic actuator comprising a permanent magnet provided on the fixed core or the movable core so that a second magnetic flux is shunted in parallel to the magnetic flux of the movable core, The sum of the magnetic resistance value between the magnetic pole surfaces of the fixed core and the magnetic resistance value between the side magnetic pole surface of the movable iron core and the magnetic pole surface of the permanent magnet, and the fixed magnetic resistance that faces each other from the magnetic pole surfaces of both end surfaces of the movable iron core. The ratio of the sum of the magnetic resistance values between the magnetic pole faces of the iron core is 0.2 or more and 1.0 or less, and the ratio of the magnetomotive force of the permanent magnet to the magnetomotive force due to energization of the electric winding is 0.2 or more 2.0 or less. 2. The electromagnetic actuator according to claim 1, wherein a magnetic material is disposed in contact with the entire surface of the permanent magnet. 3. The electromagnetic actuator according to claim 1, wherein magnetic bodies are disposed in contact with both side surfaces of the permanent magnet. 4. The electromagnetic actuator according to claim 1, wherein a magnetic body is disposed with a required gap between the permanent magnet and the permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61115440A JPS62271404A (en) | 1986-05-20 | 1986-05-20 | Electromagnetic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61115440A JPS62271404A (en) | 1986-05-20 | 1986-05-20 | Electromagnetic actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62271404A true JPS62271404A (en) | 1987-11-25 |
| JPH0423403B2 JPH0423403B2 (en) | 1992-04-22 |
Family
ID=14662611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61115440A Granted JPS62271404A (en) | 1986-05-20 | 1986-05-20 | Electromagnetic actuator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62271404A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0294481A1 (en) * | 1986-12-26 | 1988-12-14 | Mitsubishi Mining & Cement Co., Ltd. | Use of an electromagnetic actuator |
| JPH01113307U (en) * | 1988-01-27 | 1989-07-31 | ||
| JP2011080579A (en) * | 2009-10-12 | 2011-04-21 | Denso Corp | Clutch mechanism |
| WO2014076867A1 (en) * | 2012-11-16 | 2014-05-22 | 株式会社デンソー | Clutch mechanism |
| WO2014080560A1 (en) * | 2012-11-23 | 2014-05-30 | 株式会社デンソー | Clutch mechanism |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57186312A (en) * | 1981-05-11 | 1982-11-16 | Kamiya Denshi Kogyo Kk | Bistable keep solenoid |
-
1986
- 1986-05-20 JP JP61115440A patent/JPS62271404A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57186312A (en) * | 1981-05-11 | 1982-11-16 | Kamiya Denshi Kogyo Kk | Bistable keep solenoid |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0294481A1 (en) * | 1986-12-26 | 1988-12-14 | Mitsubishi Mining & Cement Co., Ltd. | Use of an electromagnetic actuator |
| JPH01113307U (en) * | 1988-01-27 | 1989-07-31 | ||
| JPH0427132Y2 (en) * | 1988-01-27 | 1992-06-30 | ||
| JP2011080579A (en) * | 2009-10-12 | 2011-04-21 | Denso Corp | Clutch mechanism |
| WO2014076867A1 (en) * | 2012-11-16 | 2014-05-22 | 株式会社デンソー | Clutch mechanism |
| WO2014080560A1 (en) * | 2012-11-23 | 2014-05-30 | 株式会社デンソー | Clutch mechanism |
| JP2014105720A (en) * | 2012-11-23 | 2014-06-09 | Denso Corp | Clutch mechanism |
| US10030716B2 (en) | 2012-11-23 | 2018-07-24 | Denso Corporation | Clutch mechanism with guide portion |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0423403B2 (en) | 1992-04-22 |
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