JPH0563006U - Polarized electromagnet - Google Patents
Polarized electromagnetInfo
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- JPH0563006U JPH0563006U JP7861791U JP7861791U JPH0563006U JP H0563006 U JPH0563006 U JP H0563006U JP 7861791 U JP7861791 U JP 7861791U JP 7861791 U JP7861791 U JP 7861791U JP H0563006 U JPH0563006 U JP H0563006U
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Abstract
(57)【要約】
【目的】 部品点数を増やさずに、単安定型または双安
定型のものを作製する。
【構成】 可動部材4 は、コイル2 を指定方向に励磁す
ると両空隙3d,3e 間にて鉄芯1 の一端1aと継鉄3 の両対
向片3a,3b のいずれか一方とに吸引されるよう永久磁石
43の両側に対向して取付けられた両磁極片41,42 を有
し、その一方磁極片41の外側面に非磁性板44を設けてな
っており、この非磁性板44は、一方磁極片41の永久磁石
43への取付方向を変えることにより、継鉄3 の対向片3a
に当接しないか又は当接するよう配設されている。従っ
て、非磁性板44を外側面に設けた一方磁極片41を準備し
ておけば部品点数を増やすことなく、一方磁極片41の永
久磁石43への取付方向を変えるだけで、単安定型または
双安定型のものを作製することができる。
(57) [Summary] [Purpose] A monostable or bistable type is manufactured without increasing the number of parts. [Structure] When the coil 2 is excited in the specified direction, the movable member 4 is attracted to one end 1a of the iron core 1 and one of the facing pieces 3a and 3b of the yoke 3 between the gaps 3d and 3e. Like permanent magnet
The magnetic pole pieces 41 and 42 are mounted opposite to each other on the both sides of 43, and the non-magnetic plate 44 is provided on the outer surface of the one magnetic pole piece 41. 41 permanent magnets
By changing the mounting direction to 43, the facing piece 3a of the yoke 3
Is disposed so as not to contact or to contact with. Therefore, if one magnetic pole piece 41 provided with the non-magnetic plate 44 on the outer surface is prepared, it is possible to change the mounting direction of the one magnetic pole piece 41 to the permanent magnet 43 without increasing the number of parts, and to obtain the monostable type or A bistable type can be manufactured.
Description
【０００１】[0001]
本考案は、有極電磁石に関する。 The present invention relates to a polarized electromagnet.
【０００２】[0002]
従来の有極電磁石として、図３及び図４に示す構造のものが存在する。 As a conventional polarized electromagnet, there is one having a structure shown in FIGS. 3 and 4.
【０００３】 図３のものは、鉄芯A と、鉄芯A に巻回したコイルB と、両対向片C1,C2 が鉄 芯A の一端A1の両側に空隙を有して平行に位置し鉄芯A の他端A2に基片C3を固着 された略コ字状の継鉄C と、永久磁石D3の両側に対向して取付けられた両磁極片 D1,D2 が鉄芯A の一端A1及び継鉄C の対向片C1,C2 に吸引釈放される可動部材D と、を有して構成されており、継鉄C は鉄芯A に対して対称形になっている。In FIG. 3, the iron core A, the coil B wound around the iron core A, and the opposing pieces C 1 and C 2 are parallel to each other with a gap on both sides of one end A 1 of the iron core A. Located at the other end A 2 of the iron core A with a base piece C 3 fixed to it, and a substantially U-shaped yoke C, and both magnetic pole pieces D 1 and D attached to opposite sides of the permanent magnet D 3. 2 is configured to have one end A 1 of the iron core A and a movable member D that is suction-released to the facing pieces C 1 and C 2 of the yoke C, and the yoke C with respect to the iron core A. It is symmetrical.
【０００４】 その動作は、いま図３の状態にあるとき、鉄芯A の一端A1がＮ極になるようコ イルB を励磁すると、継鉄C の対向片C1,C2 がＳ極になり、一方、可動部材D の 両磁極片D1,D2 はそれぞれＮ極及びＳ極になっているので、可動部材D は両磁極 片D1,D2 に働く吸引反発力でコイルB の軸と直交する方向に移動して両磁極片D1 ,D2 を継鉄C の対向片C1及び鉄芯A の一端A1に吸引保持されるとともに、コイル B の励磁を切っても永久磁石D3の磁束は閉磁路を形成しているのでその状態を維 持する。次いで、コイルB を逆方向に励磁すると、継鉄C は鉄芯A に対して対称 形になっているから、上記と逆の動作により図３の状態に戻る。つまり、いわゆ る双安定型の有極電磁石となる。In the operation, when the coil B is excited so that one end A 1 of the iron core A becomes the N pole in the state of FIG. 3, the facing pieces C 1 and C 2 of the yoke C are the S poles. On the other hand, since the magnetic pole pieces D 1 and D 2 of the movable member D are the N pole and the S pole, respectively, the movable member D is attracted and repelled by the magnetic pole pieces D 1 and D 2 to the coil B. The magnetic pole pieces D 1 and D 2 are moved by suction in the opposite piece C 1 of the yoke C and one end A 1 of the iron core A by moving in the direction orthogonal to the axis of Since the magnetic flux of the permanent magnet D 3 forms a closed magnetic circuit, that state is maintained. Next, when the coil B is excited in the opposite direction, the yoke C has a symmetrical shape with respect to the iron core A, and thus the operation shown in FIG. In other words, it becomes a so-called bistable polar electromagnet.
【０００５】 図４のものは、図３における継鉄C の対向片C1,C2 の内、その一方の対向片C2 を可動部材D の磁極片D2が当接しない程度に短く形成して、継鉄C は鉄芯A に対 して非対称形になっており、その他の構成は図３のものと同じである。In FIG. 4, one of the facing pieces C 1 and C 2 of the yoke C in FIG. 3 is formed so that one of the facing pieces C 2 is short enough not to come into contact with the magnetic pole piece D 2 of the movable member D. Then, the yoke C is asymmetric with respect to the iron core A, and other configurations are the same as those in FIG.
【０００６】 その動作を説明すると、図４は、鉄芯A の一端A1がＳ極になるようコイルB を 励磁することにより、磁極片D1と対向片C1及び一端A1と磁極片D2間で反発力、一 端A1と磁極片D1間で吸引力がそれぞれ働いて、磁極片D1が一端A1に吸引保持され た後の状態を示しており、この状態でコイルB を無励磁にすると、対向片C2が磁 極片D2に当接しない程度に短く形成してあるので、永久磁石D3の磁束は、磁極片 D2と対向片C2間の漏れが大き過ぎ、従って、可動部材D は閉磁路を形成しようと して、磁極片D1が対向片C1に、磁極片D2が一端A1にそれぞれ吸引保持されて元の 状態に復帰する。つまり、いわゆる単安定型の有極電磁石となる。To explain the operation, FIG. 4 shows that by exciting the coil B so that one end A 1 of the iron core A becomes an S pole, the pole piece D 1 and the facing piece C 1 and the one end A 1 and the pole piece D 1 are magnetized. It shows the state after the repulsion force acts between D 2 and the attraction force acts between the end A 1 and the pole piece D 1 , respectively, and the pole piece D 1 is attracted and held at the one end A 1. When B is de-excited, the opposing piece C 2 is formed so short that it does not come into contact with the magnetic pole piece D 2 , so the magnetic flux of the permanent magnet D 3 leaks between the magnetic pole piece D 2 and the opposing piece C 2. Is too large, so that the movable member D tries to form a closed magnetic path, and the magnetic pole piece D 1 is attracted and held by the facing piece C 1 and the magnetic pole piece D 2 by the one end A 1 , respectively, and returns to the original state. .. In other words, it becomes a so-called monostable polarized electromagnet.
【０００７】[0007]
上記した従来の有極電磁石にあっては、単安定型のものを作製する場合、コイ ルB を励磁して後に無励磁にしたときに可動部材D が元の状態に復帰するよう、 継鉄C を双安定型のものと違って鉄芯A に対して非対称の形状にしているので、 双安定型ものとは全く別形状の継鉄C を準備して組立加工する必要があり、部品 の共用ができず、部品点数も多くなって、コストアップの要因になっていた。 In the case of producing a monostable type of the above-mentioned conventional polarized electromagnet, a yoke is used so that the movable member D returns to its original state when the coil B is excited and then demagnetized. Unlike the bistable type, C has an asymmetrical shape with respect to the iron core A, so it is necessary to prepare and assemble the yoke C, which has a completely different shape from the bistable type. It could not be shared, and the number of parts increased, which was a factor of cost increase.
【０００８】 本考案は、上記事由に鑑みてなしたもので、その目的とするところは、単安定 型または双安定型のものを作製するのに、部品を共用することができる有極電磁 石を提供することにある。The present invention has been made in view of the above circumstances, and an object thereof is to manufacture a monostable type or a bistable type, and a polarized electromagnetic stone that can share components. To provide.
【０００９】[0009]
上記した課題を解決するために、本考案の有極電磁石は、鉄芯と、鉄芯に巻回 したコイルと、両対向片が鉄芯の一端の両側に空隙を有して位置するよう鉄芯の 他端に固着された略コ字状の継鉄と、コイルを指定方向に励磁すると前記両空隙 間にて鉄芯の一端と継鉄の両対向片のいずれか一方とに吸引されるよう永久磁石 の両側に対向して取付けられた両磁極片を有してなる可動部材と、を備え、コイ ルが無励磁のときに可動部材の一方磁極片を鉄芯の一端に常に吸引させたい場合 のみ、継鉄の対向片に当接し得る非磁性板をその一方磁極片の外側面に設けた構 成にしてある。 In order to solve the above-mentioned problems, the polarized electromagnet of the present invention comprises an iron core, a coil wound around the iron core, and an iron core so that both opposing pieces are positioned with a gap on both sides of one end of the iron core. When the coil is magnetized in a specified direction and the substantially U-shaped yoke fixed to the other end of the core, it is attracted between one end of the iron core and one of the opposing pieces of the yoke between the two gaps. And a movable member having two pole pieces attached to opposite sides of the permanent magnet so as to always attract one pole piece of the movable member to one end of the iron core when the coil is not excited. Only when desired, a non-magnetic plate that can come into contact with the facing piece of the yoke is provided on the outer surface of the one pole piece.
【００１０】 また、一方磁極片の外側面に設けた非磁性板が、その一方磁極片の永久磁石へ の取付方向を変えることにより、継鉄の対向片に当接し得るようなした構成にし てもよい。Further, the non-magnetic plate provided on the outer surface of the one pole piece can be brought into contact with the facing piece of the yoke by changing the mounting direction of the one pole piece to the permanent magnet. Good.
【００１１】[0011]
本考案の有極電磁石によれば、可動部材は、コイルを指定方向に励磁すると鉄 芯の一端と継鉄の両対向片のいずれか一方とに吸引されて、いわゆる双安定型の 動作をするが、継鉄の対向片に当接し得る非磁性板をその一方磁極片の外側面に 設けると、無励磁のときに永久磁石の磁束は、非磁性板によって一方磁極片と継 鉄の対向片との間の磁気抵抗が大きな閉磁路が形成されて吸引保持される力が弱 くなるから、一方磁極片は鉄芯の一端に常に吸引されるよう復帰し、いわゆる単 安定型の動作をさせることができ、従って、双安定型の部品を共用して非磁性板 を単に付設するだけで、単安定型を作製することができる。 According to the polarized electromagnet of the present invention, when the coil is excited in the specified direction, the movable member is attracted to one end of the iron core and one of the opposing pieces of the yoke, and performs a so-called bistable operation. However, if a non-magnetic plate that can come into contact with the facing piece of the yoke is provided on the outer surface of the one pole piece, the magnetic flux of the permanent magnet during non-excitation will be changed by the non-magnetic plate. Since a closed magnetic circuit with a large magnetic resistance is formed between the magnetic pole piece and the magnetic pole piece, the force to be attracted and held weakens. Therefore, the monostable type can be manufactured by simply attaching the non-magnetic plate in common with the bistable type components.
【００１２】 また、非磁性板を外側面に設けた一方磁極片を予め準備しておいた場合は、そ の非磁性板が、継鉄の対向片に当接しないよう配設すれば、永久磁石の磁束は、 非磁性板に影響されずに、両磁極片でもって同様の閉磁路が形成されることによ り双安定型の動作をするのに対し、その一方磁極片の永久磁石への取付方向を変 えて、非磁性板が継鉄の対向片に当接し得るよう配設すれば、前述したように、 単安定型の動作をするようになり、従って、部品点数を増やすことなく、一方磁 極片の永久磁石への取付方向を変えるだけで、単安定型または双安定型のものを 作製することができる。In addition, when one pole piece having a non-magnetic plate provided on the outer surface is prepared in advance, if the non-magnetic plate is arranged so as not to abut on the facing piece of the yoke, it will be permanent. The magnetic flux of the magnet is not affected by the non-magnetic plate and acts as a bistable type by forming a similar closed magnetic path with both pole pieces. If the non-magnetic plate is placed so that it can abut the facing piece of the yoke by changing the mounting direction, the operation will be monostable, as described above, and therefore the number of parts will not increase. On the other hand, a monostable type or a bistable type can be manufactured only by changing the mounting direction of the magnetic pole piece to the permanent magnet.
【００１３】[0013]
本考案の一実施例を図１及び図２に基づいて説明する。 An embodiment of the present invention will be described with reference to FIGS.
【００１４】 まず、図１は、双安定型のものであり、以下のように構成されている。 1 は鉄芯で、電磁軟鉄等の磁性材料により、棒状に形成されている。First, FIG. 1 shows a bistable type, which is configured as follows. Reference numeral 1 denotes an iron core, which is made of a magnetic material such as electromagnetic soft iron and formed into a rod shape.
【００１５】 2 はコイルで、コイル枠2aを介して鉄芯1 にその一端1aを突出させて巻回され ている。Reference numeral 2 denotes a coil, which is wound around the iron core 1 via the coil frame 2a with one end 1a thereof protruding.
【００１６】 3 は継鉄で、電磁軟鉄等の磁性材料により、両対向片3a,3b と基片3cを有して 略コ字状に形成され、両対向片3a,3b は先端部が鉄芯1 の一端1aの両側に空隙3d ,3e を有して鉄芯1 よりも長く平行に位置し、基片3cの中央が鉄芯1 の他端1bに 固着されている。Reference numeral 3 denotes a yoke, which is made of a magnetic material such as electromagnetic soft iron and has a substantially U-shape with both facing pieces 3a and 3b and a base piece 3c. The core 1 has voids 3d, 3e on both sides of the one end 1a and is positioned longer and parallel to the iron core 1. The center of the base piece 3c is fixed to the other end 1b of the iron core 1.
【００１７】 4 は可動部材で、両磁極片41,42 がそれぞれの長さの略半分となる一端部41a, 42a を永久磁石43の両側に取付けられ、他端部41b,42b を空隙を有して対向する よう形成され、その一方磁極片41の一端部41a の外側面には、リン青銅等の非磁 性材料製の薄板からなる非磁性板44が固着されている。そして、この可動部材4 は、他端部41b,42b が、それぞれ前記両空隙3d,3e 間に配設され、コイル2 を指 定方向に励磁すると鉄芯1 の一端1aと継鉄3 の両対向片3a,3b のいずれか一方と に吸引され得るようになっている。ただし、このとき、非磁性板44は、継鉄3 の 対向片3aには当接しない状態になっている。Reference numeral 4 denotes a movable member, one end portions 41a and 42a of which both pole pieces 41 and 42 are approximately half of their respective lengths are attached to both sides of the permanent magnet 43, and the other end portions 41b and 42b have a gap. A non-magnetic plate 44 made of a thin plate made of a non-magnetic material such as phosphor bronze is fixed to the outer surface of the one end 41a of the one pole piece 41. The movable member 4 has the other ends 41b and 42b disposed between the gaps 3d and 3e, respectively, and when the coil 2 is excited in the specified direction, both ends 1a of the iron core 1 and the yoke 3 are excited. It can be sucked into either one of the facing pieces 3a and 3b. However, at this time, the non-magnetic plate 44 is not in contact with the facing piece 3a of the yoke 3.
【００１８】 その動作は、いま図１の状態にあるとき、鉄芯1 の一端1aがＳ極になるようコ イル2 を励磁すると、継鉄3 の両対向片3a,3b がＮ極になり、一方、可動部材4 の両磁極片41,42 はそれぞれＮ極及びＳ極になっているので、可動部材4 は両磁 極片41,42 に働く吸引反発力でコイル2 の軸と直交する方向に移動して両磁極片 41,42 をそれぞれ鉄芯1 の一端1a及び継鉄3 の対向片3bに吸引保持されるととも に、コイル2 の励磁を切っても、永久磁石43の磁束は閉磁路を形成して、可動部 材4 を吸引保持する力が、図外復帰ばね等によって元に戻す力よりも強いのでそ の状態を維持する。次いで、コイル2 を逆方向に励磁すると、継鉄3 は鉄芯1 に 対して対称形になっているから、上記と逆の動作により図１の状態に戻る。つま り、いわゆる双安定型の有極電磁石となる。ただし、このとき、非磁性板44は、 継鉄3 の対向片3aには当接しない状態になっているから、双安定型の動作には、 影響することはない。In the operation, when the coil 2 is excited so that one end 1a of the iron core 1 becomes the S pole in the state of FIG. 1, both facing pieces 3a and 3b of the yoke 3 become the N pole. On the other hand, since the magnetic pole pieces 41 and 42 of the movable member 4 are the N pole and the S pole, respectively, the movable member 4 is orthogonal to the axis of the coil 2 by the attractive repulsive force acting on the magnetic pole pieces 41 and 42. Moving in the direction, the magnetic pole pieces 41, 42 are attracted and held by the one end 1a of the iron core 1 and the facing piece 3b of the yoke 3, and even if the coil 2 is de-energized, the magnetic flux of the permanent magnet 43 is Forms a closed magnetic circuit, and the force for attracting and holding the movable member 4 is stronger than the force for returning it to the original state by a return spring (not shown), so that state is maintained. Then, when the coil 2 is excited in the opposite direction, the yoke 3 has a symmetrical shape with respect to the iron core 1, and therefore the operation shown in FIG. In other words, it becomes a so-called bistable polar electromagnet. However, at this time, since the non-magnetic plate 44 is not in contact with the facing piece 3a of the yoke 3, it does not affect the operation of the bistable type.
【００１９】 次いで、図２は、単安定型のものであり、上記した図１の双安定型の各部材を そのまま使用して以下のように構成されている。Next, FIG. 2 shows a monostable type, which is configured as follows using the above-mentioned bistable type members of FIG. 1 as they are.
【００２０】 つまり、図１に対して、可動部材4 が、その一方磁極片41の永久磁石43への取 付方向を一端部41a と他端部41b とが逆になるよう変えて取付けられており、従 って一端部41a の外側面に固着されている非磁性板44は、図２に示すように、継 鉄3 の対向片3aに当接し得るよう配設されることになる。That is, with respect to FIG. 1, the movable member 4 is attached by changing the attaching direction of the one pole piece 41 to the permanent magnet 43 so that the one end portion 41a and the other end portion 41b are reversed. Therefore, the non-magnetic plate 44 fixed to the outer surface of the one end portion 41a is arranged so as to be able to contact the facing piece 3a of the yoke 3 as shown in FIG.
【００２１】 その動作を説明すると、図２において、鉄芯1 の一端1aがＮ極になるようコイ ル2 を励磁すると、継鉄3 の両対向片3a,3b がＳ極になり、一方、可動部材4 の 両磁極片41,42 はそれぞれＮ極及びＳ極になっているので、可動部材4 は両磁極 片41,42 に働く吸引反発力でコイル2 の軸と直交する方向に移動し、一方磁極片 41が非磁性板44を介して継鉄3 の対向片3bに、他方磁極片42が鉄芯1 の一端1aに それぞれ吸引される。ここで、コイル2 の励磁を切ると、永久磁石43の磁束は、 非磁性板44によって図１の場合よりも磁気抵抗が大きな閉磁路が形成されている から、可動部材4 を吸引保持する力が、図外復帰ばね等によって元に戻す力より も弱くなって一方磁極片41が鉄芯1 の一端1aに常に吸引された図２の状態に復帰 し、単安定型の動作をすることになる。Explaining the operation, in FIG. 2, when the coil 2 is excited so that one end 1a of the iron core 1 becomes the N pole, both facing pieces 3a and 3b of the yoke 3 become the S pole, while Since both magnetic pole pieces 41 and 42 of the movable member 4 are the N pole and the S pole, respectively, the movable member 4 is moved in the direction orthogonal to the axis of the coil 2 by the attractive repulsive force acting on the both magnetic pole pieces 41 and 42. The one pole piece 41 is attracted to the facing piece 3b of the yoke 3 via the non-magnetic plate 44, and the other pole piece 42 is attracted to the one end 1a of the iron core 1. Here, when the excitation of the coil 2 is cut off, the magnetic flux of the permanent magnet 43 forms a closed magnetic circuit having a magnetic resistance larger than that in the case of FIG. However, it becomes weaker than the restoring force due to an unillustrated return spring, etc., while the pole piece 41 returns to the state of FIG. Become.
【００２２】 かかる有極電磁石にあっては、上述したように、可動部材4 は、一方磁極片41 の外側面に設けた非磁性板44が、図１に示すように、継鉄3 の対向片3aに当接し ないよう配設されていれば、永久磁石43の磁束は、非磁性板44に影響されずに、 両磁極片41,42 でもって同様の閉磁路が形成されることにより双安定型の動作を するのに対し、その一方磁極片41の永久磁石43への取付方向を変えて、図２に示 すように、非磁性板44が継鉄3 の対向片3aに当接し得るよう配設されると、永久 磁石43の磁束は、非磁性板44によって磁気抵抗が大きな閉磁路が形成されるから 、無励磁のときに吸引保持される力が弱くなって元の状態に復帰して単双安定型 の動作をするようになり、従って、非磁性板44を外側面に設けた一方磁極片41を 準備しておけば部品点数を増やすことなく、一方磁極片41の永久磁石43への取付 方向を変えるだけで、単安定型または双安定型のものを作製することができるよ うになり、よって組立作業や部品管理がやりやすく、コストダウンにもなる。In such a polarized electromagnet, as described above, the movable member 4 is such that the non-magnetic plate 44 provided on the outer surface of the one pole piece 41 faces the yoke 3 as shown in FIG. If the magnetic poles of the permanent magnet 43 are not affected by the non-magnetic plate 44, the magnetic poles 41 and 42 form a closed magnetic circuit, so that the magnetic flux of the permanent magnet 43 does not come into contact with the piece 3a. On the other hand, in contrast to the stable operation, by changing the mounting direction of the pole piece 41 to the permanent magnet 43, the non-magnetic plate 44 contacts the facing piece 3a of the yoke 3 as shown in FIG. The magnetic flux of the permanent magnet 43, when arranged so as to obtain the magnetic field, forms a closed magnetic circuit with a large magnetic resistance due to the non-magnetic plate 44. After returning, it operates as a mono-bistable type. Therefore, if one pole piece 41 with a non-magnetic plate 44 on the outer surface is prepared, A monostable type or a bistable type can be manufactured by simply changing the mounting direction of the pole piece 41 to the permanent magnet 43 without increasing the number of parts. It is easy to do, and it also reduces costs.
【００２３】 なお、本実施例では、非磁性板44は、一方磁極片41の一端部41a の外側面に設 けたが、その外側面は、一端部41a と他端部41b とが共に同じ平坦面であるため 、図１の状態から、その一方磁極片41の永久磁石43への取付方向を変えて、図２ に示すように、非磁性板44が継鉄3 の対向片3aに当接し得るよう配設されると、 可動部材4 は、図２の場合の方が図１の場合よりも、非磁性板44の板厚分だけ動 作ストロークが短くなってしまう。このため、一方磁極片41の外側面が、一端部 41a の方を他端部41b よりも非磁性板44の板厚分だけ低くしておけば、非磁性板 44を設けた状態では、一端部41a と他端部41b との外側面が共に同じ高さになっ て、一方磁極片41の永久磁石43への取付方向を変えても、動作ストロークが変わ ることがなくなる。In this embodiment, the non-magnetic plate 44 is provided on the outer surface of the one end 41a of the one pole piece 41, but the outer surface of the one end 41a and the other end 41b are the same flat surface. Since it is a surface, the mounting direction of the one pole piece 41 to the permanent magnet 43 is changed from the state of FIG. 1 so that the non-magnetic plate 44 contacts the facing piece 3a of the yoke 3 as shown in FIG. When the movable member 4 is arranged so as to obtain the movable member 4, the operation stroke in the case of FIG. 2 becomes shorter than that in the case of FIG. 1 by the plate thickness of the non-magnetic plate 44. Therefore, if the outer surface of the one pole piece 41 is made lower at the one end portion 41a than the other end portion 41b by the plate thickness of the non-magnetic plate 44, one end in the state where the non-magnetic plate 44 is provided. Even if the outer surfaces of the portion 41a and the other end portion 41b have the same height, the operating stroke does not change even if the mounting direction of the one pole piece 41 to the permanent magnet 43 is changed.
【００２４】 また、本実施例では、予め、外側面に非磁性板44を設けた一方磁極片41を準備 しておいて、その一方磁極片41の永久磁石43への取付方向を変えることにより、 単安定型または双安定型のものを作製したが、一方磁極片41の永久磁石43への取 付方向を変えずに、双安定型のものには、非磁性板44を設けなくて、単安定型の 場合のみ、双安定型の部品を共用して非磁性板44を継鉄3 の対向片3aに当接し得 るよう単に付設するだけでよい。In addition, in the present embodiment, one magnetic pole piece 41 having the non-magnetic plate 44 provided on the outer surface is prepared in advance, and the mounting direction of the one magnetic pole piece 41 to the permanent magnet 43 is changed. A monostable type or a bistable type was prepared.On the other hand, the non-magnetic plate 44 was not provided in the bistable type without changing the mounting direction of the pole piece 41 to the permanent magnet 43. Only in the case of the monostable type, it is sufficient to simply attach the non-magnetic plate 44 so that the non-magnetic plate 44 can abut the facing piece 3a of the yoke 3 by sharing the bistable type component.
【００２５】[0025]
本考案の有極電磁石は、双安定型の部品を共用して、単に、継鉄の対向片に当 接し得る非磁性板をその一方磁極片の外側面に設けるだけで、単安定型を作製す ることができ、また、非磁性板を外側面に設けた一方磁極片を予め準備しておい た場合は、その非磁性板が、継鉄の対向片に当接しないよう配設すれば、双安定 型の動作をするのに対し、その一方磁極片の永久磁石への取付方向を変えて、非 磁性板が継鉄の対向片に当接し得るよう配設すれば、単安定型の動作をするよう になり、よって組立作業や部品管理がやりやすく、コストダウンにもなる。 The polarized electromagnet of the present invention is made monostable by sharing a bistable type component and simply providing a non-magnetic plate capable of contacting a facing piece of a yoke on the outer surface of one of the pole pieces. Also, if one pole piece with a non-magnetic plate on the outer surface is prepared in advance, it should be arranged so that the non-magnetic plate does not come into contact with the facing piece of the yoke. In contrast to the bistable type operation, if the mounting direction of the pole piece on the one hand is changed and the non-magnetic plate is arranged so as to be able to contact the facing piece of the yoke, the monostable type will be obtained. As a result, it will be easier to perform assembly work and parts management, and cost will be reduced.
【図１】本考案の一実施例で双安定型の場合を示す部分
断面正面図である。FIG. 1 is a partial cross-sectional front view showing a bistable type according to an embodiment of the present invention.
【図２】同上の単安定型の場合を示す部分断面正面図で
ある。FIG. 2 is a partial sectional front view showing the case of the above monostable type.
【図３】従来例の双安定型の場合を示す部分断面正面図
である。FIG. 3 is a partial cross-sectional front view showing a case of a bistable type of a conventional example.
【図４】同上の単安定型の場合を示す部分断面正面図で
ある。FIG. 4 is a partial sectional front view showing the case of the above monostable type.
1 鉄芯 1a 一端 1b 他端 2 コイル 3 継鉄 3a 対向片 3b 対向片 3d 空隙 3e 空隙 4 可動部材 41 一方磁極片 42 他方磁極片 43 永久磁石 44 非磁性板 1 iron core 1a one end 1b other end 2 coil 3 yoke 3a facing piece 3b facing piece 3d void 3e void 4 movable member 41 one pole piece 42 the other pole piece 43 permanent magnet 44 non-magnetic plate
Claims (2)
向片が鉄芯の一端の両側に空隙を有して位置するよう鉄
芯の他端に固着された略コ字状の継鉄と、コイルを指定
方向に励磁すると前記両空隙間にて鉄芯の一端と継鉄の
両対向片のいずれか一方とに吸引されるよう永久磁石の
両側に対向して取付けられた両磁極片を有してなる可動
部材と、を備え、コイルが無励磁のときに可動部材の一
方磁極片を鉄芯の一端に常に吸引させたい場合のみ、継
鉄の対向片に当接し得る非磁性板をその一方磁極片の外
側面に設けたことを特徴とする有極電磁石。1. An iron core, a coil wound around the iron core, and a substantially U-shape fixed to the other end of the iron core so that both opposing pieces are positioned with a gap on both sides of one end of the iron core. Of the permanent magnet so that, when the yoke and the coil are excited in the specified direction, they are attracted to one end of the iron core and one of the facing pieces of the yoke between the air gaps. A movable member having both magnetic pole pieces, and it is possible to contact the opposite piece of the yoke only when it is desired to always attract one magnetic pole piece of the movable member to one end of the iron core when the coil is not excited. A polarized electromagnet, wherein a non-magnetic plate is provided on the outer surface of one of the pole pieces.
が、その一方磁極片の永久磁石への取付方向を変えるこ
とにより、継鉄の対向片に当接し得るようなしたことを
特徴とする請求項１記載の有極電磁石。2. A non-magnetic plate provided on the outer side surface of one pole piece can be brought into contact with a facing piece of a yoke by changing the mounting direction of the one pole piece to a permanent magnet. The polarized electromagnet according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7861791U JPH0563006U (en) | 1991-09-30 | 1991-09-30 | Polarized electromagnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7861791U JPH0563006U (en) | 1991-09-30 | 1991-09-30 | Polarized electromagnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0563006U true JPH0563006U (en) | 1993-08-20 |
Family
ID=13666853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7861791U Pending JPH0563006U (en) | 1991-09-30 | 1991-09-30 | Polarized electromagnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0563006U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022508875A (en) * | 2018-11-09 | 2022-01-19 | 湖南信量電子有限公司 | Operation mechanism and object detection device for object detection |
-
1991
- 1991-09-30 JP JP7861791U patent/JPH0563006U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022508875A (en) * | 2018-11-09 | 2022-01-19 | 湖南信量電子有限公司 | Operation mechanism and object detection device for object detection |
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