JPH0815033B2 - Electromagnet block - Google Patents
Electromagnet blockInfo
- Publication number
- JPH0815033B2 JPH0815033B2 JP62066802A JP6680287A JPH0815033B2 JP H0815033 B2 JPH0815033 B2 JP H0815033B2 JP 62066802 A JP62066802 A JP 62066802A JP 6680287 A JP6680287 A JP 6680287A JP H0815033 B2 JPH0815033 B2 JP H0815033B2
- Authority
- JP
- Japan
- Prior art keywords
- armature
- base
- contact
- magnetic pole
- terminal
- 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
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Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は電磁継電器等に使用される電磁石ブロックに
関するものである。TECHNICAL FIELD The present invention relates to an electromagnet block used for an electromagnetic relay or the like.
（従来の技術） 従来、前記電磁継電器の一態様として、略コ字状に屈
曲して両端に対向する一対の磁極片を形成するととも
に、前記磁極片の先端をさらに外方に屈曲して受け部を
形成した鉄心にスプールを介してコイルを巻回した電磁
石ブロックと、接極子の両端部を夫々前記受け部に作用
空間を以て対向させた接極子ブロックとを備え、前記電
磁石ブロックに接極子ブロックを揺動可能に支持し、前
記コイルに電流を印加して前記受け部に接極子を吸引，
離反することにより、前記接極子ブロックを揺動させて
可動接点と固定接点とを接離するものが、特開昭59−14
3235号公報により提案されている。(Prior Art) Conventionally, as one mode of the electromagnetic relay, a pair of magnetic pole pieces are bent in a substantially U shape so as to face each other at both ends, and the tips of the magnetic pole pieces are further bent outward to receive the magnetic pole pieces. An electromagnet block in which a coil is wound around a core formed with a spool via a spool, and an armature block in which both ends of an armature are opposed to the receiving part with a working space, respectively. Is swingably supported and a current is applied to the coil to attract the armature to the receiving portion,
Japanese Patent Laid-Open No. 59-14 discloses a structure in which the movable contact and the fixed contact are brought into contact with and separated from each other by swinging the armature block by separating them.
It is proposed by Japanese Patent No. 3235.
（発明が解決しようとする問題点） しかしながら、前記電磁石ブロックにおいて、起立部
の先端を単に屈曲して受け部を形成しただけでは屈曲部
外側の曲率半径が大きいため、受け部と接極子との対向
面積が面積が小さく、両者の磁気効率が悪いという問題
点を有していた。(Problems to be Solved by the Invention) However, in the electromagnet block, the radius of curvature of the outside of the bent portion is large by simply bending the tip of the standing portion to form the receiving portion. There is a problem that the facing area is small and the magnetic efficiency of both is poor.
（問題点を解決するための手段） 本発明は前記問題点を解決するためになされたもの
で、電磁石ブロックにおいて、前記鉄心の受け部に、 i.前記接極子との対向部を切除する加工、 ii.前記接極子との対向部を叩打する加工、 の少なくともいずれか１つを施して、前記受け部に形成
される磁極面積を大きくしたものである。(Means for Solving the Problems) The present invention has been made to solve the above problems, and in the electromagnet block, i. Processing for cutting away the facing portion of the iron core to the receiving portion of the iron core. Ii. At least one of the processing of tapping the facing portion with the armature is performed to increase the magnetic pole area formed in the receiving portion.
（実施例） 以下、本発明を一実施例である添付図面を参照して説
明する。(Example) Hereinafter, the present invention will be described with reference to the accompanying drawings which are examples.
第１図，第２図は電磁継電器を示し、この電磁継電器
は、概略、ベース1,電磁石ブロック2,接極子ブロック3,
及びケース４で構成されている。1 and 2 show an electromagnetic relay, which is roughly composed of a base 1, an electromagnet block 2, an armature block 3,
And a case 4.
1.概略構成 以下、各部の構成について説明する。1. Schematic configuration The configuration of each part will be described below.
（ｉ）ベース１ ベース１は絶縁性の合成樹脂からなり、ベース本体10
には上方に開放された収容部11が形成され、長辺方向の
両外側部には上下方向に溝部10a,10b,10b,10c,10cがそ
れぞれ形成されている。(I) Base 1 The base 1 is made of an insulating synthetic resin and has a base body 10
An accommodating portion 11 that is open upward is formed in the upper side, and groove portions 10a, 10b, 10b, 10c, and 10c are formed in the vertical direction on both outer side portions in the long side direction.
溝部10b,10cは、溝部10aを中心に左右に対称に振り分
けられており、溝部10a,10b,10cには夫々共通端子12,固
定接点端子13,コイル端子14のリード部が夫々位置させ
てある。The groove portions 10b, 10c are symmetrically distributed around the groove portion 10a, and the lead portions of the common terminal 12, the fixed contact terminal 13, and the coil terminal 14 are respectively located in the groove portions 10a, 10b, 10c. .
各端子12,13,14の上部はベース本体10の中に埋め込ま
れて一体化されており、共通端子12の先端接点部12a,12
aは、本体10の長辺方向略中央部に形成されている凹部1
8の上面に露出し、固定接点端子13の固定接点13aは収容
部11の四隅に形成された台部15の上面に夫々露出し、コ
イル端子14の接点部14aは前記台部15の短辺方向内側に
形成され、台部15よりも一段と低くなった凹所16の底面
に夫々露出させてあり、コイル端子接点部14aの裏面に
は、ベース本体10の外部に通じる溶接電極挿入用の案内
部17が形成されている。The upper portions of the terminals 12, 13, 14 are embedded and integrated in the base body 10, and the contact portions 12a, 12
a is a concave portion 1 formed at a substantially central portion in the long side direction of the main body 10.
8, the fixed contacts 13a of the fixed contact terminals 13 are exposed on the upper surfaces of the base portions 15 formed at the four corners of the housing portion 11, and the contact portions 14a of the coil terminals 14 are the short sides of the base portion 15. Formed on the inner side in the direction and exposed on the bottom surface of the recess 16 which is lower than the base portion 15, and on the back surface of the coil terminal contact portion 14a, a guide for inserting a welding electrode leading to the outside of the base body 10. The part 17 is formed.
なお、ベース１の成形方法については後に詳述する。 The method of molding the base 1 will be described in detail later.
（ii）電磁石ブロック２ 電磁石ブロック２は、概略、鉄心20,スプール23,コイ
ル27,永久磁石28で構成されている。(Ii) Electromagnet block 2 The electromagnet block 2 is generally composed of an iron core 20, a spool 23, a coil 27, and a permanent magnet 28.
鉄心20は、第３図に示すように、磁性材からなる長方
形板材の両端部に夫々磁極辺21a,21bを夫々形成してあ
り、一方の磁極辺21aは板材の一端側を上方に屈曲して
起立部21cを形成し、さらに該起立部21cの上部を外側に
屈曲して起立部21dを形成したもので、他方の磁極片21b
は単に板材の他端側を前記起立部21cに対向するように
屈曲したものである。As shown in FIG. 3, the iron core 20 has magnetic pole sides 21a and 21b formed at both ends of a rectangular plate made of magnetic material, and one magnetic pole side 21a is bent upward at one end side of the plate. To form an upright portion 21c, and the upper portion of the upright portion 21c is bent outward to form an upright portion 21d.
Is a plate material in which the other end side is bent so as to face the standing portion 21c.
永久磁石28は上下に夫々磁極が形成された長方形状の
もので、鉄心本体22の略中央部に配置されている。The permanent magnet 28 has a rectangular shape in which magnetic poles are formed on the upper and lower sides, respectively, and is disposed substantially at the center of the core body 22.
スプール23は鉄心本体22を被覆するように鉄心20に一
体的に形成されており、両端部には鍔部24,24が形成さ
れていると共に、これらの間には鍔部を兼用した保持部
29が形成され、該保持部29は、永久磁石28をその上部が
露出した状態で一体的に保持するとともに、上面であっ
て鉄心20の両端側には、永久磁石28の長手方向に断面半
円形状の凹溝29a,29aが形成されている。The spool 23 is integrally formed with the iron core 20 so as to cover the iron core main body 22, has collar portions 24, 24 formed at both ends, and a holding portion that also serves as a collar portion between these.
29 is formed, the holding portion 29 integrally holds the permanent magnet 28 in a state where the upper portion thereof is exposed, and at the upper surface and both end sides of the iron core 20, a half-section in the longitudinal direction of the permanent magnet 28 is formed. Circular grooves 29a, 29a are formed.
コイル27は鍔部24,24と保持部29の間に夫々巻回され
ており、単部は鍔部24,24に一体成形されている中継端
子25のコイル巻回部26にそれぞれ電気的に接続されてい
る。The coil 27 is wound between the collar portions 24, 24 and the holding portion 29, and the single portion is electrically connected to the coil winding portion 26 of the relay terminal 25 integrally formed with the collar portions 24, 24. It is connected.
ところで、前記スプール23は、上下２分割された金型
内に、永久磁石28を載置した鉄心20と中継端子25とを所
定の位置に収容し、樹脂を注入して一体的に形成され
る。なお、このとき、樹脂を下方から注入するようにす
れば、その注入圧によって永久磁石28は上部金型に押し
付けられ、永久磁石28の上面と保持部29の凹溝29aとの
ギャップを正確に規定することができる。なお、これに
より、永久磁石28の下面と鉄心22の上面との間には隙間
が生じることになるが、その隙間はほんの僅かであるた
め問題ない。By the way, the spool 23 is integrally formed by housing the iron core 20 on which the permanent magnet 28 is mounted and the relay terminal 25 at predetermined positions in a mold which is divided into upper and lower parts and injecting resin. . At this time, if the resin is injected from below, the injection pressure causes the permanent magnet 28 to be pressed against the upper mold, and the gap between the upper surface of the permanent magnet 28 and the concave groove 29a of the holding portion 29 is accurately set. Can be defined. As a result, a gap is formed between the lower surface of the permanent magnet 28 and the upper surface of the iron core 22, but there is no problem because the gap is very small.
また、磁極片21a,21bを、その上面と上部金型とを微
小ギャップをもって保持し、鍔部24,24の上面を磁極片2
1a,21bの上面との間に段差を設け、接極子30を前記磁極
片21a,21bよりも一段高くなった鍔部24,24の上面で受け
るようにすれば、接極子30と前記磁極片21a,21bとの吸
着時のギャップは、前記微小ギャップに保たれ、遮磁板
は不要になる。Further, the magnetic pole pieces 21a and 21b are held with a small gap between the upper surfaces of the magnetic pole pieces 21a and 21b, and the upper surfaces of the collar portions 24 and 24 are made to correspond to the magnetic pole pieces 2a and 2b.
If a step is provided between the armatures 1a and 21b and the armature 30 is received by the upper surfaces of the collar portions 24 and 24 which are one step higher than the magnetic pole pieces 21a and 21b, the armature 30 and the magnetic pole pieces can be received. The gap at the time of attraction with 21a and 21b is kept at the minute gap, and the magnetic shield is not necessary.
（iii）接極子ブロック３ 接極子ブロック３は、接極子30,可動接触片31,31,支
持部36で構成されている。(Iii) Armature Block 3 The armature block 3 is composed of an armature 30, movable contact pieces 31, 31, and a supporting portion 36.
接極子30は磁性材からなる長方形板材で、可動接触片
31は両端側にいわゆるツイン構造の接点機構を設けて夫
々に可動接点32を有し、中央部を側方に延設して導出部
34を形成するとともに、その先端を接極子30に沿って両
側に延設して翼部35,35を形成したＴ字状の接点接続部3
3を有するもので、可動接触片31は接極子30の長辺方向
両側部にこれと平行に配置され、合成樹脂からなる絶縁
性の支持部36により、接極子30に一体化されている。た
だし、一体化された状態で、前記Ｔ字状の接続部33は、
支持部36の側部に突出させてある。The armature 30 is a rectangular plate made of magnetic material and has a movable contact piece.
Reference numeral 31 designates a contact mechanism having a so-called twin structure on both end sides, and each has a movable contact 32, and the central portion is extended laterally to lead out.
A T-shaped contact connecting portion 3 in which the blades 35, 35 are formed by forming the blades 34 and forming the tips thereof on both sides along the armature 30.
3, the movable contact piece 31 is arranged on both sides of the armature 30 in the long side direction in parallel with the armature 30, and is integrated with the armature 30 by an insulating support portion 36 made of synthetic resin. However, in the integrated state, the T-shaped connecting portion 33 is
It is projected to the side of the support portion 36.
前記支持部36の下面両側には、前記電磁石ブロック２
の凹溝29a,29aに対応して、先端部を凹溝29aよりも小径
の半円形断面に形成した凸条37,37（第３図参照）が形
成してあり、その高さは、凸条37,37を凹溝29a,29aに位
置させた状態で、接極子中央部30aの下面と永久磁石28
の上面との間にほんの僅かなギャップが生じるようにし
てある。The electromagnet blocks 2 are formed on both sides of the lower surface of the support portion 36.
Corresponding to the recessed grooves 29a, 29a, there are formed ridges 37, 37 (see FIG. 3) whose tips are formed in a semicircular cross section having a diameter smaller than that of the recessed groove 29a, and the height thereof is With the strips 37, 37 positioned in the concave grooves 29a, 29a, the lower surface of the armature central portion 30a and the permanent magnet 28
There is only a slight gap between it and the upper surface of the.
（iv）ケース４ ケース４は合成樹脂からなりベース１に外装しうる箱
形状としてある。(Iv) Case 4 The case 4 is made of synthetic resin and has a box shape that can be mounted on the base 1.
II.組立 以上の構成からなる電磁継電器の組立について説明す
る。II. Assembly The assembly of the electromagnetic relay having the above configuration will be described.
まず、第２図において、後に詳述する方法により形成
されたベース１の収容部11に電磁石ブロック２を装着す
る。この状態で、電磁石ブロック２の中継端子25は、第
３図に示すように、ベース１の凹所16の底面に露出した
コイル端子接続部14a上に位置する。ただし、本実施例
において、第３図に示すように、スプール鍔部24の底面
から中継端子25の下面までの高さ（h1）は、収容部11の
底面からコイル端子接点部14aの上面までの高さ（h2）
よりも若干高く設定されているため、中継端子25と接点
部14aとは離間している。したがって、溶接機（図示せ
ず）の一方の電極を案内部17から上方に向かって差し込
んでコイル端子接点部14aの下面に当接し、他方の電極
を中継端子25の上面に押しあて、中継端子25を弾性変形
してコイル端子接点部14aに押圧した状態で両者を溶接
して一体化する。First, in FIG. 2, the electromagnet block 2 is attached to the housing portion 11 of the base 1 formed by the method described in detail later. In this state, the relay terminal 25 of the electromagnet block 2 is located on the coil terminal connecting portion 14a exposed on the bottom surface of the recess 16 of the base 1, as shown in FIG. However, in the present embodiment, as shown in FIG. 3, the height (h 1 ) from the bottom surface of the spool collar portion 24 to the lower surface of the relay terminal 25 is set to the upper surface of the coil terminal contact portion 14a from the bottom surface of the housing portion 11. Height up to (h 2 )
Since it is set to be slightly higher than that, the relay terminal 25 and the contact portion 14a are separated from each other. Therefore, one electrode of a welding machine (not shown) is inserted upward from the guide portion 17 so as to abut against the lower surface of the coil terminal contact portion 14a, and the other electrode is pressed against the upper surface of the relay terminal 25 so that the relay terminal While 25 is elastically deformed and pressed against the coil terminal contact portion 14a, both are welded and integrated.
したがって、中継端子25自身の復元力により、電磁石
ブロック２はベース１に押し付けられた状態で強固に固
定される。Therefore, due to the restoring force of the relay terminal 25 itself, the electromagnet block 2 is firmly fixed while being pressed against the base 1.
なお、レーザ等で中継端子25と接点部14aとを溶接す
る場合は、ベース１に電磁石ブロック２を装着した状態
で、端子25と接点部14aとを重ね合わせる。また、案内
部17は不要である。When welding the relay terminal 25 and the contact portion 14a with a laser or the like, the terminal 25 and the contact portion 14a are overlapped with the electromagnet block 2 mounted on the base 1. Further, the guide unit 17 is unnecessary.
次に、第３図に示すように、接極子ブロック３の凸条
37を電磁石ブロック２の凹溝29aに位置させ、接極子ブ
ロック３を凹溝29と凸条27との接点を支点として矢印a,
a′方向に揺動可能に支持させる。Next, as shown in FIG. 3, the ridges of the armature block 3
37 is positioned in the concave groove 29a of the electromagnet block 2, and the armature block 3 is formed with the contact point between the concave groove 29 and the convex ridge 27 as a fulcrum.
Support it so that it can swing in the a'direction.
ここで、前述したように、電磁石ブロック２のスプー
ル23を成形する際に、永久磁石28の上面と凹溝29aとの
間隔は正確に規定されているため、前記凹溝29aに支持
される接極子30の下面と永久磁石28の上面との間には微
小ギャップが正確に形成される。Here, as described above, when the spool 23 of the electromagnet block 2 is molded, the distance between the upper surface of the permanent magnet 28 and the concave groove 29a is accurately defined, and therefore, the contact supported by the concave groove 29a is made. A minute gap is accurately formed between the lower surface of the pole 30 and the upper surface of the permanent magnet 28.
接極子30の両端部は、電磁石ブロック２の磁極片21a
（受け部21dの上面）,21bの上面に対向し、これらの間
には作用空間S,Sが形成されるとともに、永久磁石28の
磁力に基づき、永久磁石28,鉄心20,接極子31を結ぶ磁気
回路が形成される。Both ends of the armature 30 are connected to the magnetic pole pieces 21a of the electromagnet block 2.
(Upper surface of the receiving portion 21d), facing the upper surface of 21b, the working space S, S is formed between them, and based on the magnetic force of the permanent magnet 28, the permanent magnet 28, the iron core 20, the armature 31 A connecting magnetic circuit is formed.
可動接触片31のＴ字状接続部33は、その翼部35,35が夫
々共通端子接点部12a,12aの上に位置すると共に、可動
接点32は固定接点13aに対向し、第３図に示すように、
接極子ブロック２が矢印ａ（ａ′）方向に動作した状態
で図中右側（左側）の可動接点32と固定接点13aとが接
触する一方、左側（右側）の接点32と13aとが離間して
作用空間Ｓが形成されるようになっている。The T-shaped connecting portion 33 of the movable contact piece 31 has its wings 35, 35 located on the common terminal contact portions 12a, 12a, respectively, and the movable contact 32 faces the fixed contact 13a. As shown
While the armature block 2 is operating in the direction of arrow a (a '), the movable contact 32 on the right side (left side) and the fixed contact 13a in the figure are in contact with each other, while the contact points 32 and 13a on the left side (right side) are separated from each other. The working space S is formed.
次に、Ｔ字状接続部33における翼部35,35の先端側
を、接続部12a,12aにそれぞれ溶接して両者を電気的に
接続する。Next, the tip ends of the wing portions 35, 35 of the T-shaped connecting portion 33 are welded to the connecting portions 12a, 12a, respectively, to electrically connect them.
なお、Ｔ字状接続部33において、導出部34は細く、か
つ、翼部35の付け根の部分には半円形の切欠部36（第１
図参照）が形成してあるため、導出部34の捩り抵抗及び
翼部35の根元の曲げ剛性は小さく、接極子ブロック３の
揺動動作を円滑に行うことができる。In addition, in the T-shaped connecting portion 33, the lead-out portion 34 is thin, and a semicircular cutout portion 36 (first portion) is formed at the base of the wing portion 35.
(See the drawing), the torsional resistance of the lead-out portion 34 and the bending rigidity of the root of the blade portion 35 are small, so that the armature block 3 can be swung smoothly.
最後に、以上のごとく内部構成部品を装着したベース
１にケース４を外装し、ベース１とケース４との間に樹
脂５を充填して封止する。Finally, the case 1 is exteriorly mounted on the base 1 on which the internal components are mounted as described above, and the resin 5 is filled between the base 1 and the case 4 for sealing.
III.動作 以上のようにして形成された電磁継電器の動作につい
て説明する。III. Operation The operation of the electromagnetic relay formed as described above will be described.
コイル端子14に電流が印加されていない無励磁状態に
あっては、鉄心20の磁極片21aと21bとでは、磁極片21a
の受け部21dの上面の方が接極子31上面との対向面積が
大きく左右の磁気バランスが崩れているため、接極子31
は矢印ａ方向に動作して第３図に示す状態を保持され
る。In the non-excited state in which no current is applied to the coil terminal 14, the magnetic pole pieces 21a and 21b of the iron core 20 are
The upper surface of the receiving portion 21d of the armature 31 has a larger facing area with the upper surface of the armature 31 and the left and right magnetic balance is lost.
Operates in the direction of arrow a and maintains the state shown in FIG.
コイル端子14を介して左右のコイル27,27に電流を印
加し、また、その方向を切り替えて鉄心20を励磁するこ
とにより、第３図に示すように、接極子ブロック３は凹
溝29aと凸条37との接点を支点として、矢印ａ又はａ′
方向に揺動動作し、可動接点32を固定接点13aに接離す
る。なお、接極子ブロック３の揺動動作に従って凹溝29
aと凸条37とが摩擦接触しても、これらは共に合成樹脂
で形成されているため摩耗粉等の発生は少なくなる。By applying a current to the left and right coils 27, 27 via the coil terminal 14 and switching the direction to excite the iron core 20, as shown in FIG. 3, the armature block 3 is formed with a concave groove 29a. Using the contact point with the ridge 37 as a fulcrum, the arrow a or a '
The movable contact 32 is moved toward and away from the fixed contact 13a by swinging in the direction. In addition, according to the swinging motion of the armature block 3, the concave groove 29
Even if the a and the ridge 37 are in frictional contact with each other, the generation of abrasion powder and the like is reduced because both are made of synthetic resin.
また、接極子中央部30aの下面と永久磁石28の上面と
の間には所定のギャップが保持されているため、両者が
接触して揺動動作の妨げになることもない。しかも、前
記ギャップは微小に規定されているため、永久磁石28の
磁気効率はさほど低下せず、安定した動作を維持でき
る。Further, since a predetermined gap is maintained between the lower surface of the armature central portion 30a and the upper surface of the permanent magnet 28, they do not come into contact with each other and hinder the swinging operation. Moreover, since the gap is minutely defined, the magnetic efficiency of the permanent magnet 28 does not decrease so much, and stable operation can be maintained.
IV.ベース及び端子の成型方法 次に、ベース１及びこれに一体的に成形される端子1
2,13,14の成形方法について、第５図から第10図を参照
して説明する。IV. Molding method of base and terminal Next, the base 1 and the terminal 1 integrally molded with the base 1
The molding method of 2, 13, 14 will be described with reference to FIGS. 5 to 10.
まず、端子12,13,14は、これらを構成する導電性板材
を打ち抜いて、第５図に示す形状のリードフレーム50と
一体的に形成される。First, the terminals 12, 13 and 14 are integrally formed with the lead frame 50 having the shape shown in FIG. 5 by punching out the conductive plate materials constituting them.
ここで、端子12,13,14は、左右の基部51,51の内側に
それぞれ対称に設けてあり、固定接点端子13とコイル端
子14は、共通端子12を中心に図中上下方向に対称に振り
分けられている。Here, the terminals 12, 13 and 14 are provided symmetrically inside the left and right bases 51 and 51, respectively, and the fixed contact terminal 13 and the coil terminal 14 are symmetrical with respect to the common terminal 12 in the vertical direction in the figure. It is distributed.
また、上下に位置する固定接点端子13,13の先端部
は、コイル端子14,14との間にブランクを設けることな
く一体的に連設されており、上下に位置するコイル端子
接点部14a,14a間で、上下固定接点13a,13a間の距離が可
能な限り大きくできるようにしてある。Further, the tip end portions of the fixed contact terminals 13 and 13 located above and below are integrally connected without providing a blank between the coil terminals 14 and 14, and the coil terminal contact portions 14a located above and below, The distance between the upper and lower fixed contacts 13a, 13a is made as large as possible between 14a.
したがって、可動接触片31の可動接点間距離を大きく
とることができ、換言すれば、可動接触片31の長さを大
きくすることができ、電磁継電器はバラツキの小さい安
定した動作特性を得ることができる。また、スプール鍔
部24、24の間隔を大きくすることも可能になり、電磁石
ブロック２に巻回されるコイル27,27の巻数を大きくし
てより大きな起磁力を得ることも可能になる。Therefore, the distance between the movable contacts of the movable contact piece 31 can be increased, in other words, the length of the movable contact piece 31 can be increased, and the electromagnetic relay can obtain stable operation characteristics with little variation. it can. Further, it is possible to increase the interval between the spool collar portions 24, 24, and increase the number of turns of the coils 27, 27 wound around the electromagnet block 2 to obtain a larger magnetomotive force.
次に、リードフレーム50はプレス工程に移され、ここ
で接点端子13とコイル端子14とをカット線53に沿って切
断して両者を分離するとともに、第６図に示すように、
コイル端子14については、点線部X1でいったん紙面の下
方に折り曲げるとともに、さらに、実線部Y1でそれより
先をリードフレーム50と平行な状態に折り曲げ、共通端
子12については、実線部X2で上方に折り曲げ、さらに点
線部Y2でリードフレーム50と平行状態に折り曲げて接点
部12a,12aを形成し、第7,8図に示す形状に加工する。こ
れにより、コイル端子14は固定接点端子13よりも一段と
低い位置に設定され、両者が交錯するようなことはな
い。Next, the lead frame 50 is moved to a pressing step, where the contact terminal 13 and the coil terminal 14 are cut along the cut line 53 to separate them, and as shown in FIG.
For coil terminal 14 has one end bent into the plane of downward dotted line X 1, further bent before it in solid lines Y 1 to parallel with the lead frame 50, the common terminal 12, a solid line portion X 2 Is bent upward, and further, the dotted line portion Y 2 is bent in parallel with the lead frame 50 to form the contact portions 12a, 12a, and processed into the shape shown in FIGS. As a result, the coil terminal 14 is set at a position much lower than the fixed contact terminal 13, and the two do not cross each other.
続いて、以上のごとく加工されたリードフレーム50
は、次のベース成形工程に移され、上下に２分割された
金型に固定され、この金型内に樹脂を注入してベース１
を成形する。これにより、端子12,13,14の先端部は、第
９図に示すように、ベース１の中に一体的に埋め込ま
れ、前述したように、各端子12,13,14の先端接点又は接
点部12a,13a,14aはそれぞれ、凹部18,台部15の上面，凹
所16の底面に露出される。Next, the lead frame 50 processed as above.
Is transferred to the next base molding step, is fixed to a mold that is divided into two parts, and resin is injected into this mold to form the base 1
Is molded. As a result, the tip portions of the terminals 12, 13, 14 are integrally embedded in the base 1 as shown in FIG. 9, and as described above, the tip contact points or contact points of the terminals 12, 13, 14 are connected. The portions 12a, 13a, 14a are exposed to the recess 18, the upper surface of the base 15 and the bottom of the recess 16, respectively.
このように端子12,13,14の先端部はベース１の表面か
ら大きく突出することなく、単に接点又は接点部12a,13
a,14aを露出させるだけであるため、上下の金型を組み
合わせる際に、端子12,13,14の先端が金型に接触して折
れ曲がるという危険性がない。したがって、金型を簡単
な構造として加工コストの低減を図ることができるとと
もに、金型の組み合わせ速度を速くして生産効率を上げ
ることも可能になる。In this way, the tips of the terminals 12, 13 and 14 do not significantly project from the surface of the base 1 and are simply contact points or contact points 12a, 13
Since only a and 14a are exposed, there is no risk that the tips of the terminals 12, 13, and 14 will come into contact with the mold and bend when the upper and lower molds are combined. Therefore, it is possible to reduce the processing cost with a simple structure of the mold, and to increase the combination speed of the molds to improve the production efficiency.
次に、共通端子12,接点端子14は、リードフレーム50
との接続部分で第10図に示すように切断された後、ベー
ス１から突出した根元のところで下方に折り曲げられ、
夫々溝部10a,10cに収容される。ただし、まだ固定接点
端子13はリードフレーム50に接続されており、このまま
の状態で次の組立工程に移され、前述のごとくベース１
の電磁石ブロック２、接極子ブロック３を装着した後、
ケース４を装着する前の段階でリードフレーム50から切
り離され、ベース１から突出する根元部分で下方に折り
曲げて第１図に示す状態に加工される。Next, the common terminal 12 and the contact terminal 14 are connected to the lead frame 50.
After cutting at the connection part with and as shown in FIG. 10, it is bent downward at the base protruding from the base 1,
They are housed in the groove portions 10a and 10c, respectively. However, the fixed contact terminal 13 is still connected to the lead frame 50, and in this state, the fixed contact terminal 13 is moved to the next assembling step, and the base 1 is connected as described above.
After mounting the electromagnet block 2 and armature block 3 of
Before mounting the case 4, the case 4 is separated from the lead frame 50, and the root portion protruding from the base 1 is bent downward to be processed into the state shown in FIG.
つまり、ベース１はリードフレーム50をキャリアとし
て、これに保持された状態で各組立工程を搬送される。That is, the base 1 is carried by each of the assembling steps while being held by the lead frame 50 as a carrier.
したがって、端子12,13,14を総てリードフレーム50か
ら切り離し、第１図に示す状態で各組立工程を搬送する
方法に比べ、次のような利点がある。Therefore, as compared with the method in which all the terminals 12, 13, 14 are separated from the lead frame 50 and each assembling process is carried in the state shown in FIG.
即ち、ベース１をプラテンに乗せて搬送する必要がな
く、プラテンが不要になる。That is, it is not necessary to carry the base 1 on the platen for transportation, and the platen is not required.
また、プラテンに載せた状態で搬送する場合、搬送過
程でこれをストッパに衝突させてベース１を位置決め
し、そのうえで組立作業を行なうわけであるが、ストッ
パに衝突する際に生じるバックラッシユによりベース１
の位置が狂うため組立精度が低下することがある。これ
に対し、前記方法ではリードフレーム50をキャリアとし
ているため、該リードフレーム50はもちろん、ベース１
を正確に位置決めすることができ、組立精度が著しく向
上して品質が良くなる。In the case where the base 1 is carried on the platen, it is collided with the stopper in the carrying process to position the base 1 and then the assembling work is performed. However, the backlash generated when the base 1 collides with the stopper causes the base 1 to move.
The assembly accuracy may decrease because the position of is out of order. On the other hand, in the above method, since the lead frame 50 is used as the carrier, the lead frame 50 and the base 1 are of course used.
Can be accurately positioned, the assembly accuracy is significantly improved, and the quality is improved.
さらに、組立中に特性チェックを行なうとき、ベース
１の下面には共通端子12とコイル端子14だけが突出し、
これら端子12,14の間には固定接点端子13が並んで突出
していないため、特性チェック用の接触子等を端子12,1
4に容易に導通させることができ、調整のインライン化
が可能になる。なお、各固定接点端子13はリードフレー
ム50を介して導通状態にあるが、このままの状態でも、
リレーの調整に必要な特性は測定できるため問題ない。Furthermore, when the characteristics are checked during assembly, only the common terminal 12 and the coil terminal 14 project on the bottom surface of the base 1,
Since the fixed contact terminals 13 do not protrude side by side between these terminals 12 and 14, contactors for characteristic check are not used.
4 can be easily conducted and adjustment can be done in-line. Although each fixed contact terminal 13 is in a conductive state through the lead frame 50, even in this state,
There is no problem because the characteristics required for adjusting the relay can be measured.
V.鉄心等の形状 次に、鉄心20、永久磁石28、及び接極子30の形状につ
いて第11図を参照して説明する。V. Shapes of Iron Core, etc. Next, the shapes of the iron core 20, the permanent magnet 28, and the armature 30 will be described with reference to FIG.
鉄心20の本体22はその略中央部両側を一部側方に拡幅
して拡幅部22a,22aが形成され、同様に、接極子30はそ
の略中央部30aの両側を一部側方に拡幅され、拡幅部22
a,22aの端面間距離l1は、鉄心本体22の幅l2のほぼ２倍
弱で、永久磁石28の長手方向幅l3と同一で、さらに、接
極子中央部30aの幅l4と同一に設定されるとともに、拡
幅部22aの幅b1は永久磁石28の幅b2と同一としてある。The main body 22 of the iron core 20 has widened portions 22a, 22a formed by partially widening both sides of the substantially central portion thereof, and similarly, the armature 30 partially widens both sides of the substantially central portion 30a of the armature 30. Widened part 22
The distance l 1 between the end faces of a and 22a is almost twice as small as the width l 2 of the iron core body 22, the same as the longitudinal width l 3 of the permanent magnet 28, and further, the width l 4 of the armature central portion 30a. The width b 1 of the widened portion 22a is set to be the same as the width b 2 of the permanent magnet 28 while being set to be the same.
以上の形状にすることにより、永久磁石28は、これと
ほぼ同一幅の鉄心拡幅部22a,22aと接極子30とで端面を
揃えた状態に配置されるため、鉄心20,永久磁石28,及び
接極子30で形成される磁気回路の磁気効率を向上するこ
とができる。With the above-described shape, the permanent magnet 28 is arranged in a state where the end faces of the iron core widened portions 22a, 22a having substantially the same width as the armature 30 are aligned, so that the iron core 20, the permanent magnet 28, and The magnetic efficiency of the magnetic circuit formed by the armature 30 can be improved.
また、永久磁石28の本体幅b2を小さくし、その分本体
22に巻回されるコイル27の巻数、及び電磁石ブロック２
の起磁力を大きくすることができるとともに、永久磁石
28の厚さを小さくして、電磁石ブロック２の嵩を低く
し、電磁継電器をより小型化することができる。In addition, the width b 2 of the main body of the permanent magnet 28 is reduced, and
The number of turns of the coil 27 wound around 22, and the electromagnet block 2
Can increase the magnetomotive force of the
It is possible to reduce the thickness of 28, reduce the bulk of the electromagnet block 2, and further reduce the size of the electromagnetic relay.
また、前記実施例のように、スプール23の保持部29に
永久磁石28を一体的に成型する際、永久磁石28は拡幅部
22a,22aに端面を揃えて設置すればよく、鉄心20に対し
て永久磁石28を精度良く位置決めした状態で成型加工す
ることができる。Further, when the permanent magnet 28 is integrally molded with the holding portion 29 of the spool 23 as in the above embodiment, the permanent magnet 28 has a widened portion.
It suffices if the end surfaces are aligned with the 22a, 22a, and the molding can be performed with the permanent magnet 28 accurately positioned with respect to the iron core 20.
VI.樹脂流入対策 ベース１にケース４を装着して、ベース１の外周に樹
脂５を充填する際、充填された樹脂５はケース１の外側
部の溝部10a,10b,10cに伝って流れ、特に本実施例のよ
うに、ケース外壁上面に形成した凹部18上に接極子ブロ
ック３のＴ字状接続部33を位置させた場合、樹脂５が毛
管現象により導出部34とベース１との間に侵入して両者
の間で固化すると、接極子ブロック３の揺動が阻害され
て所期の特性が得られないことになる。VI. Resin inflow countermeasure When the case 4 is mounted on the base 1 and the resin 5 is filled on the outer periphery of the base 1, the filled resin 5 flows along the grooves 10a, 10b, 10c on the outer side of the case 1, In particular, when the T-shaped connecting portion 33 of the armature block 3 is positioned on the concave portion 18 formed on the upper surface of the outer wall of the case as in the present embodiment, the resin 5 is separated between the lead-out portion 34 and the base 1 by the capillary phenomenon. If it penetrates into the core and solidifies between them, the swing of the armature block 3 is hindered and the desired characteristics cannot be obtained.
それ故、本実施例では、第13,14,15図に示すように、
共通端子12の先端部をＴ字状態に成形するとともに、こ
れを一旦上方に屈曲した後、さらに水平に折り曲げて接
点部12a,12aを形成し、該接点部12a,12a間の基部12bを
ケース１に埋め込むことによりその上に隔壁18aを形成
し、その内側に、導出部34とケース１との間に位置する
空隙S0が形成される。Therefore, in this embodiment, as shown in FIGS.
The tip of the common terminal 12 is formed into a T-shape, and is bent once upward and then horizontally bent to form the contact portions 12a and 12a, and the base portion 12b between the contact portions 12a and 12a is formed into a case. The partition 18a is formed on the partition wall 18a by embedding the partition wall 1 in the space 1, and the space S 0 located between the lead-out portion 34 and the case 1 is formed inside the partition wall 18a.
したがって、溝部10aを伝って流れ込む樹脂５は、ま
ず前記隔壁18aに遮ぎられてその内側に流れ込む樹脂５
の量は極めて微量になる。また、隔壁18aを越えて流れ
込もうとする樹脂５は空隙S0により毛管現象が損なわれ
て隔壁18a部で止まり、ケース１と導出部34との間で両
者を一体化した状態で固化することはない。Therefore, the resin 5 flowing along the groove portion 10a is first blocked by the partition wall 18a and flows into the inside thereof.
Is extremely small. Further, the resin 5 trying to flow over the partition wall 18a is impaired in the capillary phenomenon due to the void S 0 and stops at the partition wall 18a portion, and is solidified in a state where the case 1 and the lead-out portion 34 are integrated with each other. There is no such thing.
このため、可動接触片31のＴ字状接続部33,33の先端
間隔をベース１の幅相当まで大きくとり、接極子30及び
これに対向する永久磁石28、鉄心磁極片21a,21bの短辺
方向幅を大きくして電磁石ブロック２の吸引力を大きく
することができる。For this reason, the distance between the tip ends of the T-shaped connecting portions 33, 33 of the movable contact piece 31 is made large to the width of the base 1, and the armature 30 and the short sides of the permanent magnet 28 and the iron core magnetic pole pieces 21a, 21b facing the armature 30. The attraction force of the electromagnet block 2 can be increased by increasing the width in the direction.
VII.磁極片の形状 第12図に示すように、受け部21dを有する磁極片21a
は、単に折り曲げただけでは点線状態にあり、接極子30
と対向する上面の平坦部面積は非常に小さく、接極子30
との間の磁気効率が悪い。VII. Shape of magnetic pole piece As shown in FIG. 12, a magnetic pole piece 21a having a receiving portion 21d.
Is in a dotted line when it is simply bent, and the armature 30
The flat area of the upper surface facing the
The magnetic efficiency between and is poor.
したがって、本発明にかかる電磁石ブロック２では、
磁極片21aに矢印β方向から力を加えて起立部21cと受け
部21dとの屈曲部を外側に突き出した後、受け部21dの上
部をα方向から叩いて、Ｒ部21eの円弧面長さを短かく
して接極子30との対向面における平坦部面積（磁極面面
積）を広げたものである。Therefore, in the electromagnet block 2 according to the present invention,
After a force is applied to the magnetic pole piece 21a from the direction of the arrow β to project the bent portion of the standing portion 21c and the receiving portion 21d to the outside, the upper portion of the receiving portion 21d is tapped from the α direction, and the arc surface length of the R portion 21e. The area of the flat part (area of the magnetic pole surface) on the surface facing the armature 30 is made shorter by shortening.
このため、磁極面面積を同一とすれば、それだけ磁極
片21aの端面をより内側（矢印ｂ方向）にもっていくこ
とができ、鉄心20の長辺方向の長さを小さくして電磁継
電器をコンパクトにすることができるとともに、接極子
30との対向面積を大きくして磁束の漏れを防止し、磁気
効率を向上することができる。Therefore, if the magnetic pole surface area is the same, the end surface of the magnetic pole piece 21a can be moved further inward (direction of arrow b), and the length of the iron core 20 in the long side direction can be reduced to make the electromagnetic relay compact. Can be an armature
It is possible to increase the area opposed to 30 to prevent leakage of magnetic flux and improve magnetic efficiency.
なお、磁極片21aの上面は、シェービングカットして
平坦に成形するようにしてもよい。The top surface of the pole piece 21a may be shaving cut to be formed flat.
また、第11図に示すように、接極子30に対向する受け
部21dの幅（l5）を拡幅すれば、接極子30との対向面積
をさらに大きくして、磁気効率をさらに向上することが
できる。Further, as shown in FIG. 11, if the width (l 5 ) of the receiving portion 21d facing the armature 30 is increased, the facing area with the armature 30 can be further increased to further improve the magnetic efficiency. You can
VIII.他の実施例 前記実施例では、磁極片21aだけに受け部21cを形成す
るものとしたが、ラッチングタイプとする場合には、左
右の磁極片21a,21bを同一形状にすればよい。VIII. Other Embodiments In the above embodiment, the receiving portion 21c is formed only on the magnetic pole piece 21a, but in the case of the latching type, the left and right magnetic pole pieces 21a, 21b may have the same shape.
また、前記実施例では、接極子ブロック３は保持部29
で支持するものとしたが、永久磁石28で支持するように
してもよい。Further, in the above-mentioned embodiment, the armature block 3 has the holding portion 29.
However, it may be supported by the permanent magnet 28.
（発明の効果） 以上の説明で明らかなように、本発明では、電磁石ブ
ロックの鉄心受け部に、受け部の前記接極子との対向部
を切除する加工、受け部を叩打する加工のいずれか一つ
を施して前記受け部の前記接極子との磁極面積を大きく
している。(Effect of the invention) As is clear from the above description, in the present invention, either the processing of cutting the facing portion of the receiving portion of the electromagnet block facing the armature or the processing of tapping the receiving portion is performed. One is performed to increase the magnetic pole area of the receiving portion with the armature.
したがって、接極子と、これに近接、離間する受け部
との磁極面積が大きくなり、漏れ磁束が少なく両者の磁
気効率が向上する。Therefore, the magnetic pole area between the armature and the receiving portion that is close to or apart from the armature is large, the leakage magnetic flux is small, and the magnetic efficiency of both is improved.
第１図から第４図は本発明にかかる電磁継電器を示し、
第１図は平面図、第２図は分解斜視図、第３図は第１図
のIII−III線断面図、第４図は第１図のIV−IV線断面
図、第５図、第６図はリードフレームの平面図、第７図
は第６図のVII−VII線断面図、第８図は第６図のVIII−
VIII線断面図、第９図，第10図はベースの成型工程を示
す斜視図、第11図の要部斜視図、第12図は磁極片の側面
図、第13図は電磁継電器の一部拡大平面図、第14,15図
は電磁継電器の一部拡大断面図である。 １…ベース、10…ベース本体、11…収容部、12…共通端
子、12a…接点部、13…固定接点端子、13a…固定接点、
14…コイル端子、14a…接点部、15…台部、16…凹所、1
7…案内溝、18…凹部、２…電磁石ブロック、20…鉄
心、21a,21b…磁極片、21c…起立部、21d…受け部、21e
…Ｒ部、22…鉄心本体、23…スプール、24…鍔部、25…
中継端子、26…コイル巻回部、27…コイル、28…永久磁
石、29…保持部、29a…凹溝、３…接極子ブロック、30
…接極子、31…可動接触片、32…固定接点、33…接続
部、34…導出部、35…翼部、36…支持部、37…凸条、４
…ケース、５…樹脂、Ｓ…作用空間。1 to 4 show an electromagnetic relay according to the present invention,
1 is a plan view, FIG. 2 is an exploded perspective view, FIG. 3 is a sectional view taken along the line III-III in FIG. 1, FIG. 4 is a sectional view taken along the line IV-IV in FIG. 1, FIG. 6 is a plan view of the lead frame, FIG. 7 is a sectional view taken along line VII-VII of FIG. 6, and FIG. 8 is VIII- of FIG.
VIII line sectional view, FIG. 9, FIG. 10 is a perspective view showing the molding process of the base, FIG. 11 is a perspective view of the main part, FIG. 12 is a side view of the pole piece, and FIG. 13 is a part of the electromagnetic relay. An enlarged plan view and FIGS. 14 and 15 are partially enlarged sectional views of the electromagnetic relay. DESCRIPTION OF SYMBOLS 1 ... Base, 10 ... Base main body, 11 ... Storage part, 12 ... Common terminal, 12a ... Contact part, 13 ... Fixed contact terminal, 13a ... Fixed contact,
14 ... Coil terminal, 14a ... Contact part, 15 ... Stand part, 16 ... Recess, 1
7 ... Guide groove, 18 ... Recessed portion, 2 ... Electromagnet block, 20 ... Iron core, 21a, 21b ... Magnetic pole piece, 21c ... Standing portion, 21d ... Receiving portion, 21e
… R part, 22… iron core body, 23… spool, 24… collar part, 25…
Relay terminal, 26 ... Coil winding section, 27 ... Coil, 28 ... Permanent magnet, 29 ... Holding section, 29a ... Groove, 3 ... Armature block, 30
... Armature, 31 ... Movable contact piece, 32 ... Fixed contact, 33 ... Connection part, 34 ... Derivation part, 35 ... Wing part, 36 ... Support part, 37 ...
... Case, 5 ... Resin, S ... Working space.
Claims (1)
ルが巻回されたコイル部と、両端部がそれぞれの鉄芯の
両端の磁極部に対向し、中間位置に設けられた支点部で
軸支されて揺動する接極子とからなる電磁石ブロックに
おいて、 前記磁極部の少なくとも一方を外方に屈曲して前記接極
子と対向する磁極面を形成する受け部を設けるととも
に、該受け部表面を切除または叩打して前記接極子と対
向する前記磁極面の面積を大きくしたことを特徴とする
電磁石ブロック。1. A coil portion, in which a coil is wound around an intermediate portion of an iron core formed in a substantially U-shape, and both ends thereof are provided at intermediate positions so as to face magnetic pole portions at both ends of each iron core. In an electromagnet block consisting of an armature that is pivotally supported and swings at a fulcrum part, at least one of the magnetic pole parts is provided with a receiving part that is bent outward to form a magnetic pole surface facing the armature, and An electromagnet block characterized in that the surface of the magnetic pole surface facing the armature is enlarged by cutting or tapping the surface of the receiving portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62066802A JPH0815033B2 (en) | 1987-03-19 | 1987-03-19 | Electromagnet block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62066802A JPH0815033B2 (en) | 1987-03-19 | 1987-03-19 | Electromagnet block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63231832A JPS63231832A (en) | 1988-09-27 |
| JPH0815033B2 true JPH0815033B2 (en) | 1996-02-14 |
Family
ID=13326366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62066802A Expired - Lifetime JPH0815033B2 (en) | 1987-03-19 | 1987-03-19 | Electromagnet block |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0815033B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5395263A (en) * | 1977-01-31 | 1978-08-21 | Matsushita Electric Works Ltd | Electromagnetic relay |
| JPS5491761A (en) * | 1977-12-29 | 1979-07-20 | Omron Tateisi Electronics Co | Method of working mobile iron piece for electric magnet device |
| JPS565234Y2 (en) * | 1980-03-07 | 1981-02-04 |
-
1987
- 1987-03-19 JP JP62066802A patent/JPH0815033B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63231832A (en) | 1988-09-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |