JPH0834151B2 - Monostable electromagnet - Google Patents
Monostable electromagnetInfo
- Publication number
- JPH0834151B2 JPH0834151B2 JP63176577A JP17657788A JPH0834151B2 JP H0834151 B2 JPH0834151 B2 JP H0834151B2 JP 63176577 A JP63176577 A JP 63176577A JP 17657788 A JP17657788 A JP 17657788A JP H0834151 B2 JPH0834151 B2 JP H0834151B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic body
- magnetic
- electromagnet
- coil
- permanent magnet
- 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.)
- Expired - Lifetime
Links
Landscapes
- Electromagnets (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、３相モータの開閉用の電磁接触器などに
適用される単安定電磁石に関するものである。Description: TECHNICAL FIELD The present invention relates to a monostable electromagnet applied to an electromagnetic contactor for opening and closing a three-phase motor.
従来のこの種の単安定電磁石として、クラッパ型電磁
石やＥ型電磁石など、磁気回路中に永久磁石を含まない
いわゆる無極型の電磁石が一般的であった。この無極型
の電磁石は低コストではあるが、コイルの発生磁束しか
アーマチュアの駆動力に利用できないため、一定の吸引
力幅を得るために消費電力を大きくする必要があった。As a conventional monostable electromagnet of this type, a so-called non-polar electromagnet having no permanent magnet in a magnetic circuit, such as a clapper type electromagnet and an E type electromagnet, has been generally used. Although this non-polar type electromagnet is low in cost, since only the magnetic flux generated by the coil can be used for the driving force of the armature, it was necessary to increase the power consumption in order to obtain a certain attractive force width.
これに対して、近年電磁石の低消費電力化のため磁気
回路中に永久磁石を含む有極型の電磁石装置が提案され
ている（たとえば特開昭57−188816号，特公昭56−7288
号，実公昭58−10327号，米国特許第4,191,937号）。On the other hand, in recent years, in order to reduce the power consumption of the electromagnet, a polar type electromagnet device including a permanent magnet in the magnetic circuit has been proposed (for example, JP-A-57-188816 and JP-B-56-7288).
No. 58-327, U.S. Pat. No. 4,191,937).
ところが、特開昭57−188816号および特公昭56−7288
号の単安定電磁石は、永久磁石の磁束もアーマチュアの
駆動力に利用できるので一定の吸引力幅を得るために無
極型に比べて低消費電力にすることができる。しかし、
双安定用の電磁石構造であるため一般的な電磁接触器や
単安定リレーなどの片寄ったばね負荷には不向きであっ
た。However, JP-A-57-188816 and JP-B-56-7288
Since the magnetic flux of the permanent magnet can also be used for the driving force of the armature, the monostable electromagnet of No. 3 can achieve lower power consumption than the non-polar type in order to obtain a constant attraction force width. But,
Because of the bistable electromagnet structure, it was not suitable for biased spring loads such as general electromagnetic contactors and monostable relays.
これに対して、実公昭58−10327号の単安定電磁石
は、無極型と有極型の前記従来例との中間的な特性、す
なわち有極であるため低消費電力が図れるが、前記従来
例と異なり非対称の磁気回路であるため片寄ったばね負
荷に適した特性を有している。On the other hand, the monostable electromagnet of Japanese Utility Model Publication No. 58-10327 has an intermediate characteristic between the non-polar type and the polar type of the conventional example, that is, it has low power consumption because it is polar. Unlike the asymmetric magnetic circuit, it has characteristics suitable for biased spring load.
しかし、コ字形のヨークを打ち抜き構造とし、かつア
ーマチュアを板状としているため、薄形化には向いてい
るが直方体型の電磁石にはコイルのスペースが多くとれ
ないので不向きである。However, since the U-shaped yoke has a punched structure and the armature has a plate shape, it is suitable for thinning, but it is not suitable for a rectangular parallelepiped electromagnet because it does not have a lot of coil space.
同様に、米国特許第4,191937号は、ほぼ同一構造で単
安定および双安定の電磁石を供給することができるが、
構造が複雑になり単安定電磁石がコスト高になるととも
に、実公昭58−10327号と同様アーマチュアとして板を
用いているため薄型化には向いているが直方体型の電磁
石には不向きである。Similarly, U.S. Pat.No. 4,191,937 can provide monostable and bistable electromagnets with nearly identical construction,
Since the structure becomes complicated and the cost of the monostable electromagnet becomes high, and since a plate is used as an armature as in JP-B-58-10327, it is suitable for thinning, but is not suitable for a rectangular parallelepiped electromagnet.
したがって、この発明の目的は、コイルのスペースを
少なくすることなく直方体型の電磁石を提供でき、しか
も可動部の吸引力が増大でき、より一層低消費電力を図
ることができる単安定電磁石を提供することである。Therefore, an object of the present invention is to provide a rectangular parallelepiped electromagnet without reducing the space of the coil, to increase the attractive force of the movable part, and to provide a monostable electromagnet capable of further reducing power consumption. That is.
この発明の単安定電磁石は、略コ字形をなす第１の磁
性体と、この第１の磁性体に巻装されたコイルと、前記
第１の磁性体の一端に対向する一片を有するとともに前
記第１の磁性体の前記一端と他端とに対向する他片を有
する略コ字形の第２の磁性体と、前記第１の磁性体の前
記他端に前記第２の磁性体の前記他片と反対側に対向す
る第３の磁性体と、前記第２の磁性体と前記第３の磁性
体との間に介在されて相異なる磁極を前記第２の磁性体
および第３の磁性体に磁気結合した永久磁石とを備え、
前記第２の磁性体，前記第３の磁性体および前記永久磁
石の組と第１の磁性体のいずれか一方を固定側としたも
のである。The monostable electromagnet of the present invention has a first magnetic body having a substantially U-shape, a coil wound around the first magnetic body, and a piece facing one end of the first magnetic body, and A substantially U-shaped second magnetic body having another piece facing the one end and the other end of the first magnetic body; and the other of the second magnetic body at the other end of the first magnetic body. A third magnetic body facing the opposite side of the one piece, and different magnetic poles interposed between the second magnetic body and the third magnetic body to form the second magnetic body and the third magnetic body. With a permanent magnet magnetically coupled to
One of the set of the second magnetic body, the third magnetic body and the permanent magnet and the first magnetic body is the fixed side.
この発明の構成によれば、コイルを励磁すると第１の
磁性体の両端と第２の磁性体の両片とが吸着されるよう
に可動側が動作し、励磁を解くと復帰して第１の磁性体
の他片と第３の磁性体とが吸着する。この場合、第１の
磁性体と第２の磁性体とを噛み合わせているため直方体
形の電磁石に適用するのに適するとともに、略コ字形の
第１の磁性体にコイルを巻装するのでコイルのスペース
を大きくすることができる。またコイルを励磁時に永久
磁石を含まないで第１の磁性体もよび第２の磁性体によ
る閉磁路を形成することができるため、可動側の吸引力
を増大でき消費電力をより一層低減することができる。According to the configuration of the present invention, when the coil is excited, the movable side operates such that both ends of the first magnetic body and both pieces of the second magnetic body are attracted to each other. The other piece of the magnetic material and the third magnetic material are attracted to each other. In this case, since the first magnetic body and the second magnetic body are meshed with each other, it is suitable for application to a rectangular parallelepiped electromagnet, and the coil is wound around the substantially U-shaped first magnetic body. The space can be increased. Further, since the closed magnetic circuit can be formed by the first magnetic body and the second magnetic body without including the permanent magnet when the coil is excited, the attraction force on the movable side can be increased and the power consumption can be further reduced. You can
この発明の第１の実施例を第１図に基づいて説明す
る。すなわち、この単安定電磁石は、第１の磁性体１
と，コイル２と，第２の磁性体３と，第３の磁性体4,永
久磁石５とを有する。A first embodiment of the present invention will be described with reference to FIG. That is, the monostable electromagnet is the first magnetic body 1
A coil 2, a second magnetic body 3, a third magnetic body 4, and a permanent magnet 5.
第１の磁性体１は、略コ字形をなすように折曲されて
いる。The first magnetic body 1 is bent so as to form a substantially U-shape.
コイル２は、第１の磁性体１に巻装されている。 The coil 2 is wound around the first magnetic body 1.
第２の磁性体３は、第１の磁性体１の一端７に対向す
る一片６を有するとともに第１の磁性体１の一端７と他
端８とに対向する他片９を有する略コ字形をなしてい
る。The second magnetic body 3 has a substantially U-shape having one piece 6 facing one end 7 of the first magnetic body 1 and another piece 9 facing one end 7 and the other end 8 of the first magnetic body 1. Is doing.
第３の磁性体４は、第１の磁性体１の他端８に第２の
磁性体３の他片９と反対側に対向している。The third magnetic body 4 faces the other end 8 of the first magnetic body 1 on the side opposite to the other piece 9 of the second magnetic body 3.
永久磁石５は、第２の磁性体３と第３の磁性体４との
間に介在されて相異なる磁極を第２の磁性体および第３
の磁性体４に磁気結合している。The permanent magnet 5 is interposed between the second magnetic body 3 and the third magnetic body 4 and has different magnetic poles from the second magnetic body and the third magnetic body.
Is magnetically coupled to the magnetic body 4.
この実施例では、第１の磁性体１およびコイル２の組
が固定側で、第２の磁性体3,第３の磁性体４および永久
磁石５の組が第１の磁性体１の両端7,8の並び方向に往
復可能な可動側となる。In this embodiment, the set of the first magnetic body 1 and the coil 2 is the fixed side, and the set of the second magnetic body 3, the third magnetic body 4 and the permanent magnet 5 is the both ends 7 of the first magnetic body 1. It becomes a movable side that can be reciprocated in the arrangement direction of 8 and 8.
この実施例によれば、コイル２を励磁すると第１の磁
性体１の両端7,8と第２の磁性体３の両片6,9とが吸着さ
れるように可動側が動作し、励磁を解くと復帰して第１
の磁性体１の他端８と第３の磁性体4,並びに第１の磁性
体１の一端７と第２の磁性体３の他片９、がそれぞれ吸
着する。この場合、第１の磁性体１と第２の磁性体３と
を噛み合わせているため直方体形の電磁石に適用するの
に適するとともに、略コ字形の第１の磁性体１にコイル
２を巻装するのでコイル２のスペースを大きくすること
ができる。またコイル２の励磁時に永久磁石４を含まな
いで第１の磁性体１および第２の磁性体３による閉磁路
を形成することができるため、可動側の吸引力を増大で
き消費電力をより一層低減することができる。According to this embodiment, when the coil 2 is excited, the movable side operates so that both ends 7 and 8 of the first magnetic body 1 and both pieces 6 and 9 of the second magnetic body 3 are attracted to each other, and the excitation is performed. When you solve it
The other end 8 of the magnetic body 1 and the third magnetic body 4, and the one end 7 of the first magnetic body 1 and the other piece 9 of the second magnetic body 3 are attracted respectively. In this case, since the first magnetic body 1 and the second magnetic body 3 are meshed with each other, it is suitable for application to a rectangular parallelepiped electromagnet, and the coil 2 is wound around the substantially U-shaped first magnetic body 1. Since it is mounted, the space of the coil 2 can be increased. In addition, since the closed magnetic circuit can be formed by the first magnetic body 1 and the second magnetic body 3 without including the permanent magnet 4 when the coil 2 is excited, the attraction force on the movable side can be increased and power consumption can be further improved. It can be reduced.
またこの実施例は、第１の磁性体１をコ字状に曲げ、
その脚部にコイル２を巻回し、第１の磁性体１の両端7,
8に可動側となる第２の磁性体３および第３の磁性体４
と永久磁石５を設ける構成としたため、コイル２を効率
良く巻装できるとともに、第１の磁性体１を略コ字形の
抜き加工および曲げ加工のみとしているので、コイル２
への組込み性を向上できる。また第２の磁性体３も略コ
字状の曲げ部を有する構造とすることにより、曲げ部と
なる一片６および他片９に吸引力発生の磁極面を設ける
ことができ、スペースの有効利用ができるのでコイルス
ペースが大きく取れ、高効率化が図れる。Further, in this embodiment, the first magnetic body 1 is bent into a U-shape,
The coil 2 is wound around the leg, and both ends 7 of the first magnetic body 1,
The second magnetic body 3 and the third magnetic body 4 on the movable side 8
Since the permanent magnet 5 is provided, the coil 2 can be efficiently wound, and the first magnetic body 1 is only subjected to substantially U-shaped punching and bending.
The ability to be embedded in Further, by making the second magnetic body 3 also have a substantially U-shaped bent portion, it is possible to provide a magnetic pole surface for generating an attractive force on the one piece 6 and the other piece 9 which are to be the bent portion, and to effectively use the space. As a result, the coil space can be made large and high efficiency can be achieved.
なお、この実施例において、第１の磁性板１を可動側
とし、第２の磁性体２等を固定側としてもよい。この場
合、第１の磁性体１を往復動作ではなく、第１の磁性体
１の折曲部側に軸を設けて回動するようにしてもよい。In this embodiment, the first magnetic plate 1 may be the movable side and the second magnetic body 2 may be the fixed side. In this case, the first magnetic body 1 may be rotated by providing a shaft on the bent portion side of the first magnetic body 1 instead of reciprocating.
この発明の第２の実施例を第２図に示す。すなわち、
この単安定電磁石は、第１の磁性体１を平面コ字形に形
成し、その中間部にコイル２を巻装し、第２の磁性体３
の一片６は第１の磁性体１の一端７の片面に対向し、他
片９は第１の磁性体１の両端7,8の前記片面と反対側の
片面に対向し、第３の磁性体４を第１の磁性体１の他端
８の前記一片６と同じ側に対向し、第２の磁性体３と第
３の磁性体４との間に永久磁石５を介在している。FIG. 2 shows a second embodiment of the present invention. That is,
In this monostable electromagnet, a first magnetic body 1 is formed in a planar U-shape, a coil 2 is wound around the middle portion thereof, and a second magnetic body 3 is formed.
One piece 6 faces one surface of one end 7 of the first magnetic body 1, and the other piece 9 faces one surface of both ends 7 and 8 of the first magnetic body 1 opposite to the one surface, and the third magnetic The body 4 opposes the other end 8 of the first magnetic body 1 on the same side as the piece 6, and a permanent magnet 5 is interposed between the second magnetic body 3 and the third magnetic body 4.
この実施例の場合、第１の磁性体１を平面コ字形に形
成しており、第１の磁性体１側または第２の磁性体３側
のいずれか一方を可動にでき、しかも往復動作および回
動動作のどちらも可能となる。さらに可動側が回動する
場合は中心部に支軸10を設けることができるのでバラン
スよくすることができる。また第２の磁性体３を平板に
することにより双安定形電磁石への展開が容易にでき
る。In the case of this embodiment, the first magnetic body 1 is formed in a planar U-shape, and either the first magnetic body 1 side or the second magnetic body 3 side can be made movable, and the reciprocating motion and Both rotation operations are possible. Further, when the movable side rotates, the support shaft 10 can be provided in the central portion, so that good balance can be achieved. Further, by making the second magnetic body 3 a flat plate, it is possible to easily develop it into a bistable electromagnet.
この発明の単安定電磁石によれば、コイルを励磁する
と第１の磁性体の両端と第２の磁性体の両片とが吸着さ
れるように可動側が動作し、励磁を解くと復帰して第１
の磁性体の他片と第３の磁性体とが吸着する。この場
合、第１の磁性体と第２の磁性体とを噛み合わせている
ため直方体形の電磁石に適用するのに適するとともに、
略コ字形の第１の磁性体にコイルを巻装するのでコイル
のスペースを大きくすることができる。またコイルの励
磁時に永久磁石を含まないで第１の磁性体および第２の
磁性体による閉磁路を形成することができるため、可動
側の吸引力を増大でき消費電力をより一層低減すること
ができるという効果がある。According to the monostable electromagnet of the present invention, when the coil is excited, the movable side operates so that both ends of the first magnetic body and both pieces of the second magnetic body are attracted to each other, and when the excitation is released, it returns to the first position. 1
The other piece of the magnetic substance and the third magnetic substance are adsorbed. In this case, since the first magnetic body and the second magnetic body are meshed with each other, it is suitable for application to a rectangular parallelepiped electromagnet, and
Since the coil is wound around the substantially U-shaped first magnetic body, the space of the coil can be increased. Further, when the coil is excited, a closed magnetic circuit can be formed by the first magnetic body and the second magnetic body without including the permanent magnet, so that the attraction force on the movable side can be increased and the power consumption can be further reduced. The effect is that you can do it.
第１図はこの発明の第１の実施例の斜視図、第２図は第
２の実施例の斜視図である。 １……第１の磁性体、２……コイル、３……第２の磁性
体、４……第３の磁性体、５……永久磁石、６……一
片、７……一端、８……他端、９……他片FIG. 1 is a perspective view of the first embodiment of the present invention, and FIG. 2 is a perspective view of the second embodiment. 1 ... First magnetic body, 2 ... Coil, 3 ... Second magnetic body, 4 ... Third magnetic body, 5 ... Permanent magnet, 6 ... Piece, 7 ... One end, 8 ... ... the other end, 9 ... the other piece
Claims (1)
の磁性体に巻装されたコイルと、前記第１の磁性体の一
端に対向する一片を有するとともに前記第１の磁性体の
前記一端と他端とに対向する他片を有する略コ字形の第
２の磁性体と、前記第１の磁性体の前記他端に前記第２
の磁性体の前記他片と反対側に対向する第３の磁性体
と、前記第２の磁性体と前記第３の磁性体との間に介在
されて相異なる磁極を前記第２の磁性体および第３の磁
性体に磁気結合した永久磁石とを備え、前記第２の磁性
体，前記第３の磁性体および前記永久磁石の組と第１の
磁性体のいずれか一方を固定側とし、他方を可動側とし
た単安定電磁石。1. A first magnetic body having a substantially U-shape, and the first magnetic body.
A substantially U-shaped coil having a coil wound around the magnetic body, and a piece facing one end of the first magnetic body and another piece facing the one end and the other end of the first magnetic body. A second magnetic body and the second magnetic body on the other end of the first magnetic body.
A third magnetic body facing the other side of the other magnetic body, and different magnetic poles interposed between the second magnetic body and the third magnetic body to form the second magnetic body. And a permanent magnet magnetically coupled to the third magnetic body, and one of the set of the second magnetic body, the third magnetic body and the permanent magnet and the first magnetic body is a fixed side, A monostable electromagnet with the other side movable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63176577A JPH0834151B2 (en) | 1988-07-14 | 1988-07-14 | Monostable electromagnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63176577A JPH0834151B2 (en) | 1988-07-14 | 1988-07-14 | Monostable electromagnet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0226005A JPH0226005A (en) | 1990-01-29 |
| JPH0834151B2 true JPH0834151B2 (en) | 1996-03-29 |
Family
ID=16015994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63176577A Expired - Lifetime JPH0834151B2 (en) | 1988-07-14 | 1988-07-14 | Monostable electromagnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0834151B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040081824A (en) * | 2003-03-17 | 2004-09-23 | 김연수 | fermentation food making apparatus |
-
1988
- 1988-07-14 JP JP63176577A patent/JPH0834151B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0226005A (en) | 1990-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0992526A (en) | Electromagnetic device | |
| JPH0834151B2 (en) | Monostable electromagnet | |
| JPH0225204Y2 (en) | ||
| JPH0642419B2 (en) | Monostable electromagnet | |
| JPH02125406A (en) | Monostable electromagnet | |
| JPH0446359Y2 (en) | ||
| JPH0117797Y2 (en) | ||
| JPH0347297Y2 (en) | ||
| JPS6230768Y2 (en) | ||
| JPH0481843B2 (en) | ||
| JPH0134837Y2 (en) | ||
| JPH0347296Y2 (en) | ||
| JPH0446357Y2 (en) | ||
| JPH0442884Y2 (en) | ||
| JPH0342651Y2 (en) | ||
| JPH0134839Y2 (en) | ||
| JPH0134838Y2 (en) | ||
| JPH0225201Y2 (en) | ||
| JPH0347294Y2 (en) | ||
| JPH0225206Y2 (en) | ||
| JPH0440249Y2 (en) | ||
| JPH0440251Y2 (en) | ||
| JPS6348170B2 (en) | ||
| JPH0358846U (en) | ||
| JPH03196505A (en) | Monostable electromagnet |