JPS62188205A - Polarized electromagnet - Google Patents

Abstract

PURPOSE:To avoid a bad effect to adjacently located electronic parts by providing a moving element striding a central leg in order to make a permanent magnet which constitutes the moving element located at the position other than the extension of the central leg at one end of the central leg of an iron core. CONSTITUTION:A moving element 34 consisting of a permanent magnet 35 and iron pieces 36, 37 is provided perpendicularly to an iron core 31 striding the central leg 32 of the iron core 31 and the iron pieces 36, 37 are provided between the central leg 32 and the iron pieces 36, 37. Accordingly, the magnetic flux leaking from the permanent magnet 35 can be prevented from leaking to the direction of the plane constituted by the central leg 32 and outer legs 38, 39. This can prevent the erroneous operation of, e.g., an electromagnetic relay provided near the same printed wiring substrate to the electromagnetic relay which uses a polarized electromagnet and other electronic parts.

Description

【発明の詳細な説明】 （産業上の利用分野） この発明は、例えば電磁継電器等に適用される有極電磁
石に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a polar electromagnet applied to, for example, an electromagnetic relay.

（従来の技術） 近時、永久磁石と電磁石の相互作用によって動磁力の永
久磁石が使用されているため、その磁気が電磁継電器の
外部に漏れることがある。(Prior Art) Recently, permanent magnets with dynamic magnetic force are used due to the interaction between a permanent magnet and an electromagnet, so the magnetism may leak to the outside of an electromagnetic relay.

ところで、電磁継電器は、複数個が近接して配設される
ことがある。このように印刷配線基板に近接して配設し
た場合、永久磁石からの漏洩磁気によって電磁継電器相
互が誤動作することがあった。Incidentally, a plurality of electromagnetic relays may be arranged close to each other. When the electromagnetic relays are disposed close to the printed wiring board in this way, the electromagnetic relays may malfunction due to magnetic leakage from the permanent magnets.

また、この種の有極電磁石を使用した電子部品は、他の
電子部品とも近接して配設されるため、これらの電子部
品に悪影響を与えることもあった。Further, since electronic components using this type of polar electromagnet are disposed in close proximity to other electronic components, these electronic components may be adversely affected.

（発明が解決しようとする問題点） この発明は、永久磁石からの漏洩磁気に関する問題を解
決するものであり、その目的とするところは、漏洩磁気
が少なく、近接して配設される電子部品に悪影響を与え
ることがないを極電磁石を提供しようとするものである
。(Problems to be Solved by the Invention) This invention solves problems related to magnetic leakage from permanent magnets, and its purpose is to reduce magnetic leakage and provide electronic components that are disposed in close proximity. The aim is to provide a polar electromagnet that does not have a negative impact on the environment.

［発明の構成］ （問題点を解決するための手段） 導く第１．第２の外脚が設けられた鉄芯と、中央部に永
久磁石が設けられこの永久磁石の両極にそれぞれ鉄片の
一端部が設けられこれら鉄片の他端部が前記鉄芯の第１
．第２の外脚および中央脚の相互間にそれぞれ位置し、
且つ永久磁石が中央脚の一端部で中央脚の延長以外の位
置に跨いで設けられ、前記コイルの励磁方向により中央
脚と直交する方向に移動される可動子とから構成されて
いる。[Structure of the invention] (Means for solving the problem) Leading first. An iron core is provided with a second outer leg, a permanent magnet is provided in the center, one end of an iron piece is provided at both poles of the permanent magnet, and the other end of these iron pieces is connected to the first outer leg of the iron core.
．． each located between the second outer leg and the middle leg;
A permanent magnet is provided at one end of the central leg at a position other than the extension of the central leg, and the movable element is moved in a direction perpendicular to the central leg by the excitation direction of the coil.

（作用） この発明は、可動子を構成する永久磁石が鉄芯の中央脚
の一端部で、中央脚の延長以外の位置となるよう、可動
子を中央脚に跨いで設けることにより、永久磁石から漏
れる磁束が鉄芯の中央脚と第１．第２の外脚によって構
成される面方向に漏れないようにしている。(Function) This invention provides a permanent magnet by providing the mover astride the center leg so that the permanent magnet constituting the mover is at one end of the center leg of the iron core and at a position other than the extension of the center leg. The magnetic flux leaking from the central leg of the iron core and the first leg. This prevents leakage in the direction of the surface formed by the second outer leg.

（実施例） 以下、この発明の一実施例について図面を参照して説明
する。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

第１図は、この発明に係わる有極電磁石を電子継電器に
適用した場合を示すものである。ここで鉄芯３１、コイ
ル３３、可動子３４が有極電磁石を構成している。即ち
、鉄芯３１の中央脚３２には、コイル３３が巻回されて
いる。また、可動子３４は永久磁石３５、およびこの永
久磁石３５の両極にそれぞれ設けられた鉄片３６．３７
より構成される。この鉄片３６．３７はそれぞれ前記鉄
芯３１の中央脚３２、第１．第２の外脚３８，３９相互
間に配置され、可動子３４は中央脚３２に跨がった状態
となっている。つまり、可動子３４は鉄芯３１の中央脚
３２と第１．第２の外脚３８゜３９が構成する面と直交
するように中央脚３２が跨がっている。FIG. 1 shows a case where a polarized electromagnet according to the present invention is applied to an electronic relay. Here, the iron core 31, coil 33, and mover 34 constitute a polarized electromagnet. That is, a coil 33 is wound around the central leg 32 of the iron core 31. The mover 34 also includes a permanent magnet 35 and iron pieces 36 and 37 provided at both poles of the permanent magnet 35, respectively.
It consists of These iron pieces 36, 37 are respectively connected to the central leg 32 and the first leg 32 of the iron core 31. The movable element 34 is disposed between the second outer legs 38 and 39, and is in a state astride the center leg 32. In other words, the movable element 34 is connected to the central leg 32 of the iron core 31 and the first. The central leg 32 straddles the planes formed by the second outer legs 38 and 39 at right angles.

一方、基板５１には所定間隔離間して保持部一端部が設
けられる。これら一対の可動接片５４゜５５、および５
６．５７の他端部にはそれぞれ接点５ｇ、５９，６０．
６１が設けられ、この接点５８．５９および６０．６１
の相互間にはそれぞれ固定接点６２．６３が所定間隔離
間して設けられる。この固定接点６２．６３はそれぞれ
前記基板５１に設けられた保持部７４に保持される。On the other hand, one end of the holding portion is provided on the substrate 51 at a predetermined distance. These pairs of movable contact pieces 54, 55, and 5
The other end of 6.57 has contacts 5g, 59, 60.
61 is provided, the contacts 58.59 and 60.61
Fixed contacts 62 and 63 are provided between each other at a predetermined distance. The fixed contacts 62 and 63 are held by holding portions 74 provided on the substrate 51, respectively.

また、６４は回動子である。この回動子６４は略Ｔ字状
とされており、はぼ中央部には透孔６５が設けられてい
る。この透孔６５は前記Ｕ板５１の保持部５２．５３の
ほぼ中間部に設けられた突部６６に嵌挿され、この状態
において可動子６４設けられ、他端部両端部には前記可
動接片５４゜５５および５６．５７のそれぞれ相互間に
位置し、回動子６４の回動に伴って可動接片５４，５５
゜５６．５７を駆動する突起６７．６８が設けられてい
る。さらに、前記鉄芯３１は前記回動子６４の上面部に
設けられる。即ち、前記保持部５２゜５３および７４に
はそれぞれ段部６９．７０および切欠き部７１が設けら
れ、これらに鉄芯３１が嵌合保持される。この状態にお
いて前記可動子３４の鉄片３６．３７は鉄芯３１の中央
脚３２および゛第１．第２の外脚３８．３９の相互間に
位置しると、これに伴ない回動子６４も突部６６を中心
としてＥ方向に回動される。したがって、突起６７．６
８により可動接片５４〜５７が駆動され、接点５８と６
１が固定接点６２．６３にそれぞれ当接されてオン状態
となり、接点５９．６０はオフ状態とされ乞。この状態
においてコイル３３の励磁が切られても永久磁石３５に
よりこの状態が保持される。゛ に伴い回動子６４もＦ方向に回動される。したがって、
突起６７．６８により回動接片５４〜５７が駆動され、
接点５９と６０が固定接点６２．６３にそれぞれ当接さ
れてオン状態となり、接点５８．６１はオフ状態となる
。この状態においてコイル３３の励磁が切られても永久
磁石３５によりこの状態が保持される。Further, 64 is a rotator. The rotator 64 has a substantially T-shape, and a through hole 65 is provided in the center of the rotor. This through hole 65 is fitted into a protrusion 66 provided approximately in the middle of the holding portions 52 and 53 of the U plate 51, and in this state, the movable element 64 is provided, and the movable contact is provided at both ends of the U plate 51. The movable contact pieces 54, 55 are located between the pieces 54, 55 and 56, 57, respectively, and move as the rotator 64 rotates.
A projection 67.68 is provided which drives the angle 56.57°. Furthermore, the iron core 31 is provided on the upper surface of the rotator 64. That is, the holding parts 52, 53 and 74 are provided with step parts 69, 70 and notches 71, respectively, and the iron core 31 is fitted and held in these. In this state, the iron pieces 36 and 37 of the movable element 34 are connected to the central leg 32 of the iron core 31 and the "first." When located between the second outer legs 38 and 39, the rotator 64 is also rotated in the E direction about the protrusion 66 accordingly. Therefore, protrusion 67.6
8 drives the movable contact pieces 54 to 57, and contacts 58 and 6
1 are in contact with fixed contacts 62 and 63, respectively, to be in the on state, and contacts 59 and 60 are in the off state. In this state, even if the excitation of the coil 33 is cut off, this state is maintained by the permanent magnet 35. Accordingly, the rotor 64 is also rotated in the F direction. therefore,
The rotary contact pieces 54 to 57 are driven by the projections 67 and 68,
Contacts 59 and 60 are brought into contact with fixed contacts 62 and 63, respectively, and are turned on, while contacts 58 and 61 are turned off. In this state, even if the excitation of the coil 33 is cut off, this state is maintained by the permanent magnet 35.

上記実施例によれば、永久磁石３５と鉄片３６゜３７と
からなる可動子３４を鉄芯３１の中央脚３２に鉄芯３１
と直交するように跨いで設け、前記鉄片３６．３７を中
央脚３２と鉄片３６．３７によって構成される面方向に
漏れることを防止できるため、例えばこの有極電磁石を
利用した電磁継電器と同一の印刷配線基板に近接して配
設される電磁継電器や、他の電子部品の誤動作を防止す
ることが可能である。According to the above embodiment, the mover 34 consisting of the permanent magnet 35 and the iron pieces 36 and 37 is attached to the central leg 32 of the iron core 31.
Since it is possible to prevent the iron pieces 36, 37 from leaking in the plane direction formed by the center leg 32 and the iron pieces 36, 37, it is possible to prevent the iron pieces 36, 37 from leaking in the direction of the plane formed by the central leg 32 and the iron pieces 36, 37. It is possible to prevent malfunctions of electromagnetic relays and other electronic components disposed close to the printed wiring board.

尚、上記実施例では、この発明を電磁継電器に適用した
場合について説明したが、これに限定されるものではな
い。In addition, although the said Example demonstrated the case where this invention was applied to an electromagnetic relay, it is not limited to this.

その他、この発明の要旨を変えない範囲において、種々
変形実施可能なことは勿論である。It goes without saying that various other modifications can be made without departing from the gist of the invention.

［発明の効果］ 以上、詳述したようにこの発明によれば可動子を構成す
る永久磁石が鉄芯の中央脚の一端部で、中央脚の延長以
外の位置となるよう、可動子を中央脚に跨いで設けるこ
とにより、永久磁石から漏れる磁束が鉄芯の中央脚と第
１．第２の外脚によって構成される面方向に漏れないよ
うにしているため、近接して配設される電子部品に悪影
響を与えることがない有極電磁石を提供できる。[Effects of the Invention] As described in detail above, according to the present invention, the mover is moved to the center so that the permanent magnet constituting the mover is at one end of the center leg of the iron core and is located at a position other than the extension of the center leg. By straddling the legs, the magnetic flux leaking from the permanent magnet is distributed between the central leg of the iron core and the first leg. Since leakage is prevented in the direction of the surface formed by the second outer leg, it is possible to provide a polarized electromagnet that does not adversely affect electronic components disposed in close proximity.

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの発明の一実施例を示す斜視図、第２図は第
１図の組立て状態を示す正面図である。 ３６．３７・・・鉄片、６４・・・回動子、５４，５５
゜５６．５７・・・可動接片、６２．６３・・・固定接
点。 出願人代理人　弁理士　鈴江武彦 篇　フ　国 Ｆ １Ｎ−ｍ−／ｌ 箪２図FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a front view showing the assembled state of FIG. 1. 36.37... Iron piece, 64... Rotator, 54, 55
゜56.57...Movable contact piece, 62.63...Fixed contact. Applicant's agent Patent attorney Takehiko Suzue F Country F 1N-m-/l 2 drawings

Claims (1)

【特許請求の範囲】[Claims] 　中央脚にコイルが設けられ、この中央脚の一端部両側
部に他端部の磁極をそれぞれ導く第１、第２の外脚が設
けられた鉄芯と、中央部に永久磁石が設けられこの永久
磁石の両極にそれぞれ鉄片の一端部が設けられこれら鉄
片の他端部が前記鉄芯の第１、第２の外脚および中央脚
の相互間にそれぞれ位置し、且つ永久磁石が中央脚の一
端部で中央脚の延長以外の位置に跨いで設けられ、前記
コイルの励磁方向により中央脚と直交する方向に移動さ
れる可動子とを具備したことを特徴とする有極電磁石。A coil is provided on the central leg, and an iron core is provided on both sides of one end of the central leg with first and second outer legs that guide the magnetic poles at the other end, and a permanent magnet is provided in the center. One end of an iron piece is provided at each pole of the permanent magnet, and the other end of these iron pieces is located between the first and second outer legs and the center leg of the iron core, and the permanent magnet is located between the first and second outer legs and the center leg of the iron core. 1. A polarized electromagnet comprising: a movable element that is provided at one end to straddle a position other than an extension of the central leg, and is moved in a direction perpendicular to the central leg according to the excitation direction of the coil.