JPS6228535B2 - - Google Patents

Description

【発明の詳細な説明】 本発明は電磁継電器に関する。[Detailed description of the invention] The present invention relates to an electromagnetic relay.

従来の電磁継電器の接点開閉機構は例えば第１
図に示すように、一端をケース１に固定された比
較的長いスパンの一対の接点ばね２，２の先端内
側にそれぞれ可動接点３，３が固定され、これら
の可動接点３，３の中間に位置するように固定接
点４，４が一端をケース１に固定されたステー５
の先端に取り付けられている。そして前記接点ば
ね２，２は作動部材６により一体に連結されてい
て、この作動部材６を電磁石（図示せず）によつ
て矢印方向に駆動することによつて接点ばね２，
２を動かして可動接点３，３と固定接点４，４と
の開閉状態を変化させるように構成している。 For example, the contact opening/closing mechanism of a conventional electromagnetic relay is
As shown in the figure, movable contacts 3, 3 are fixed inside the tips of a pair of relatively long span contact springs 2, 2 whose one ends are fixed to the case 1, respectively, and a movable contact 3, 3 is fixed in the middle of these movable contacts 3, 3. One end of the fixed contacts 4, 4 is fixed to the stay 5 fixed to the case 1 so that the
attached to the tip of. The contact springs 2, 2 are integrally connected by an actuating member 6, and by driving the actuating member 6 in the direction of the arrow by an electromagnet (not shown), the contact springs 2, 2 are connected together.
2 to change the open/close states of the movable contacts 3, 3 and the fixed contacts 4, 4.

しかし、このような従来の接点開閉機構にあつ
ては、可動接点３が接触面に対してほぼ垂直に移
動して接触するため、接触後の可動接点３と固定
接点４との摺動量（ワイプ量）は１〜２μｍと小
さく、従つて接点開閉時のスパーク等によつて発
生する絶縁性物質等の除去が必ずしも十分でな
く、一方、摺動量をある程度大きくしようとする
と、接点ばね２のスパンを長くしてたわみを大き
くするか、接点ばね２に複雑な曲げ加工を加えな
ければならず、小型化が困難であるとともに、接
点ばね２の寿命が短かくなるという欠点があつ
た。 However, in such a conventional contact opening/closing mechanism, since the movable contact 3 moves almost perpendicularly to the contact surface and makes contact, the amount of sliding between the movable contact 3 and the fixed contact 4 after contact (wipe The amount of sliding is as small as 1 to 2 μm, so it is not always sufficient to remove insulating materials generated by sparks when opening and closing contacts. It is necessary to increase the deflection by increasing the length of the contact spring 2 or to apply complicated bending to the contact spring 2, which makes miniaturization difficult and shortens the life of the contact spring 2.

本発明は、この欠点を改め、接点の摺動量が大
きく接触信頼性が高くまた小型化が可能な電磁継
電器を提供することを目的とする。 An object of the present invention is to correct this drawback and provide an electromagnetic relay that has a large contact sliding amount, high contact reliability, and can be miniaturized.

この目的のために本発明では電磁駆動によつて
シーソー式に揺動する接極子を用い、この接極子
の揺動動作により接点の接離を行なうようにし、
この接極子に設けられた揺動接点の円弧運動に伴
なう水平方向の移動成分によつて大きな摺動量を
確保し、従つて、接点ばねのスパンの長大化を不
要とし、かつ、前記接極子の両端部を電磁駆動に
より揺動支点を中心として同一方向に回動させる
電磁石を設けることにより駆動できるようにする
とともに、電磁石の小型化を可能にしたものであ
る。 For this purpose, in the present invention, an armature that swings in a seesaw manner by electromagnetic drive is used, and the contacts are connected and separated by the swinging action of the armature.
A large amount of sliding is ensured by the horizontal movement component accompanying the circular arc movement of the swinging contact provided on the armature.Therefore, there is no need to increase the span of the contact spring, and the contact By providing an electromagnet that rotates both ends of the pole in the same direction about a swing fulcrum by electromagnetic drive, it is possible to drive the pole, and the electromagnet can be made smaller.

以下、図面によつて本発明の一実施例を説明す
る。 Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

第２図は本実施例の電磁継電器の内部構造を示
す断面図で、第３図は組立途中における分解斜視
図である。 FIG. 2 is a sectional view showing the internal structure of the electromagnetic relay of this embodiment, and FIG. 3 is an exploded perspective view during assembly.

電磁継電器のケース１１の周壁には、その長手
方向の両側において、それぞれ第１の接点ばね１
２、コモン接点ばね１３及び第２の接点ばね１４
がこの順序で装着されている。この第１の接点ば
ね１２及び第２の接点ばね１４の下端部にはそれ
ぞれ１本の端子１２Ａ，１４Ａが一体に形成さ
れ、これらの端子１２Ａ，１４Ａはケース１１へ
の装着後、第４図中鎖線で示すように、段がつく
ように折曲され、ケース１１からの抜止がなされ
更に端子ピツチを確保している。コモン接点ばね
１３の下端部には２本の端子１３Ａ，１３Ｂが一
体に形成され、これらの端子１３Ａ，１３Ｂもケ
ース１１への装着後、段がつくように折曲されて
いる。また、これらの第１の接点ばね１２、コモ
ン接点ばね１３及び第２の接点ばね１４の先端部
にはそれぞれすり割溝１５，１６，１７が形成さ
れて接触信頼性を高めるための双子接点構造にな
つており、これらの先端部にはそれぞれ接点１
８，１９，２０が固定されている。 First contact springs 1 are provided on the peripheral wall of the case 11 of the electromagnetic relay on both sides in the longitudinal direction.
2. Common contact spring 13 and second contact spring 14
are installed in this order. One terminal 12A, 14A is integrally formed at the lower end of the first contact spring 12 and the second contact spring 14, respectively, and these terminals 12A, 14A are attached to the case 11 as shown in FIG. As shown by the middle chain line, it is bent in steps to prevent it from coming out of the case 11 and to ensure the terminal pitch. Two terminals 13A, 13B are integrally formed at the lower end of the common contact spring 13, and these terminals 13A, 13B are also bent in steps after being attached to the case 11. Furthermore, slotted grooves 15, 16, and 17 are formed at the tips of the first contact spring 12, common contact spring 13, and second contact spring 14, respectively, to create a twin contact structure for improving contact reliability. , and each of these tips has a contact point 1.
8, 19, and 20 are fixed.

前記ケース１１内には電磁石２１が収納されて
いる。この電磁石２１は、鉄心２２と、この鉄心
２２の周囲に巻回されたコイル２３と、前記鉄心
２２の両端にそれぞれ固定された段差のついたヨ
ーク２４，２５とから構成され、これらのヨーク
２４，２５の段差は互いに逆方向に折曲され、こ
れらのヨーク２４，２５の段差のついた端部間に
は接極子２６が配置されている。 An electromagnet 21 is housed within the case 11. The electromagnet 21 is composed of an iron core 22, a coil 23 wound around the iron core 22, and stepped yokes 24 and 25 fixed to both ends of the iron core 22, respectively. , 25 are bent in opposite directions, and an armature 26 is disposed between the stepped ends of these yokes 24, 25.

この接極子２６の両側中央部には第５図に示す
ように側方に突出され且つ板厚方向に湾曲された
揺動支点部２７が一体に形成され、この揺動支点
部２７はケース１１に一体もしくは別体に形成さ
れた受部２８（第２図参照）に揺動自在に支持さ
れている。 As shown in FIG. 5, swinging fulcrum portions 27 that project laterally and are curved in the plate thickness direction are integrally formed in the center portions of both sides of the armature 26. It is swingably supported by a receiving portion 28 (see FIG. 2) formed integrally with or separately from the.

前記接極子２６の上面には、第５図に示すよう
に、所定パターンの印刷接点からなる揺動接点２
９がプリント基板３０を介して固着されている。
この接極子２６の上面に固定されたプリント基板
３０の上面一側すなわち第２図中左側は、一端を
ケース１１に装着される付勢手段としての側面略
倒伏Ｌ字形の復帰ばね３１の他端により押圧さ
れ、常時は所定位置すなわち左側が斜め下方にな
るように傾斜された位置になるよう付勢されてい
る。そして、この傾斜状態において、接極子２６
の両端部は前記電磁石２１の両側のヨーク２４，
２５の段差部からそれぞれ離間して対向した状態
になつている。即ち左方のヨーク２４の段差部は
第２図中接極子２６の左端の上方に位置し、右方
のヨーク２５の段差部は接極子２６の右端の下方
に位置している。 On the upper surface of the armature 26, as shown in FIG.
9 is fixed via a printed circuit board 30.
One side of the upper surface of the printed circuit board 30 fixed to the upper surface of the armature 26, that is, the left side in FIG. , and is normally biased to a predetermined position, that is, a position tilted so that the left side is diagonally downward. In this tilted state, the armature 26
Both ends of the yoke 24 on both sides of the electromagnet 21,
They are spaced apart from and facing each other from the step portions 25 and 25. That is, the stepped portion of the left yoke 24 is located above the left end of the armature 26 in FIG. 2, and the stepped portion of the right yoke 25 is located below the right end of the armature 26.

そして電磁石２１のコイル２３に通電されると
両側のヨーク２４，２５によつて接極子２６の両
端がそれぞれ吸引されて復旧ばね３１の押圧力に
打ち勝つて揺動支点部２７を中心として第２図中
時計方向に回動してヨーク２４，２５に接極子２
６の両端が接触するようになつている。 When the coil 23 of the electromagnet 21 is energized, both ends of the armature 26 are attracted by the yokes 24 and 25 on both sides, overcoming the pressing force of the recovery spring 31 and pivoting around the fulcrum 27 as shown in FIG. The armature 2 is attached to the yokes 24 and 25 by rotating clockwise.
Both ends of 6 are in contact with each other.

前記第１の接点ばね１２、コモン接点ばね１３
及び第２の接点ばね１４は第３図に示すようにケ
ース１１へ装着し電磁石２１及び接極子２６を装
着した後に、あるいはケース１１への装着前に、
第４図または第６図に示すように、それぞれケー
ス１１の内側に向つて折曲され、第１、第２の接
点ばね１２，１４は、前記電磁石２１の両側のヨ
ーク２４，２５上にそれぞれ設けられた絶縁材か
らなるストツパ３２，３３に所定圧力で当接し、
コモン接点ばね１３は２段に折曲されて接点１９
が所定圧力で揺動接点２９に当接している。そし
て第２図に示すように接極子２６が復帰ばね３１
により左端側が下方になるように傾斜していると
きは揺動接点２９の右端部が第２の接点ばね１４
の接点２０に当接して第２の接点ばね１４の先端
側を上方へたわませて第２の接点ばね１４はスト
ツパ３３から浮いた状態になり、接極子２６が右
端側が下方になるように傾斜したときは第８図に
示すように揺動接点２９の左端部が第１の接点ば
ね１２の接点１８に当接して第１の接点ばね１２
を上方へたわませて第１の接点ばね１２はストツ
パ３２から浮いた状態となるように構成されてい
る。またコモン接点ばね１３は揺動接点２９の揺
動にかかわらず常に揺動接点２９に接触してい
る。なお、組立にあたり、第１、第２の接点ばね
１２，１４及びコモン接点ばね１３が予め折曲さ
れている場合は、電磁石２１及び接極子２６をケ
ース１１内に装着した後、各接点ばね１２〜１４
をケース１１に装着するようにする。 The first contact spring 12 and the common contact spring 13
The second contact spring 14 is attached to the case 11 as shown in FIG. 3, and after the electromagnet 21 and armature 26 are attached, or before attachment to the case 11,
As shown in FIG. 4 or 6, the first and second contact springs 12 and 14 are bent toward the inside of the case 11, respectively, and are mounted on yokes 24 and 25 on both sides of the electromagnet 21, respectively. Abuts against provided stoppers 32 and 33 made of insulating material with a predetermined pressure,
The common contact spring 13 is bent into two stages to form the contact 19.
is in contact with the swing contact 29 with a predetermined pressure. Then, as shown in FIG.
When the left end side is tilted downward, the right end of the swing contact 29 is connected to the second contact spring 14.
The second contact spring 14 comes into contact with the contact 20 and bends the tip end of the second contact spring 14 upward, so that the second contact spring 14 is floating above the stopper 33, and the armature 26 is placed so that the right end side is downward. When it is tilted, the left end of the swinging contact 29 comes into contact with the contact 18 of the first contact spring 12 as shown in FIG.
The first contact spring 12 is configured to be suspended from the stopper 32 by bending upward. Further, the common contact spring 13 is always in contact with the swing contact 29 regardless of the swing of the swing contact 29. Note that when assembling, if the first and second contact springs 12, 14 and the common contact spring 13 are bent in advance, after installing the electromagnet 21 and armature 26 in the case 11, each contact spring 12 ~14
is attached to the case 11.

前記各接点ばね１２〜１４、電磁石２１、接極
子２６及び復帰ばね３１等が装着されたケース１
１の上面開口部には、第６図に示すように、透明
プラスチツクなどからなるカバー３４が取り付け
られている。 A case 1 in which each of the contact springs 12 to 14, an electromagnet 21, an armature 26, a return spring 31, etc. are attached.
As shown in FIG. 6, a cover 34 made of transparent plastic or the like is attached to the opening on the top surface of 1. As shown in FIG.

次に本実施例の動作について説明する。 Next, the operation of this embodiment will be explained.

電磁石２１のコイル２３の通電が停止されると
接極子２６は復帰ばね３１の押圧力によつて第２
図に示すように左端部が下方になるように傾斜
し、接極子２６にプリント基板３０を介して設け
られた揺動接点２９の右端部は第２の接点ばね１
４の接点２０に当接する。この際、第７図に示す
ように接極子２６すなわち揺動接点２９の右端部
の所定点Ｐの軌跡は、第７図中線ｐで示すよう
に、揺動支点部２７を中心とした円弧となり、一
方、接点２０の揺動接点２９に接触する点Ｑの軌
跡は線ｑで示すような弧状になる。このため、接
点２０が揺動接点２９に最初に当接した点から、
接極子２６の傾斜が停止される点までの間に接点
２０は距離Ｗだけ摺動することとなり、この摺動
距離Ｗは従来の接点開閉機構に比べ格段に大きな
値となる。従つて、接点２０及び揺動接点２９の
表面はこの摺動により払拭され磨かれて新しい面
が形成され安定な接触状態が得られ、比較的長い
断続的な使用でも高い接触信頼性を得られる。こ
こにおいて、接点２０（後述する第１の接点ばね
１２の接点１８も同様）及び揺動接点２９の材料
として摺動接点用材料を用いることによつて磨耗
も少なくできる。この揺動接点２９と接点２０と
の接触により、揺動接点２９に接点１９を介して
常時接触しているコモン接点ばね１３と第２の接
点ばね１４との電気的導通がなされ、端子１３
Ａ，１３Ｂと端子１４Ａとが導通状態とされる。 When the coil 23 of the electromagnet 21 is de-energized, the armature 26 is moved to the second position by the pressing force of the return spring 31.
As shown in the figure, the left end is inclined downward, and the right end of the swing contact 29 provided on the armature 26 via the printed circuit board 30 is connected to the second contact spring 1.
4 contact point 20. At this time, as shown in FIG. 7, the locus of the predetermined point P on the right end of the armature 26, that is, the swing contact 29, is a circular arc centered on the swing fulcrum 27, as shown by the line p in FIG. On the other hand, the locus of the point Q of the contact 20 that contacts the swinging contact 29 has an arc shape as shown by the line q. Therefore, from the point where the contact 20 first contacts the swinging contact 29,
The contact 20 will slide by a distance W until the point at which the armature 26 stops tilting, and this sliding distance W will be a much larger value than in the conventional contact opening/closing mechanism. Therefore, the surfaces of the contact 20 and the swinging contact 29 are wiped and polished by this sliding action, forming new surfaces and achieving a stable contact condition, and high contact reliability can be obtained even with relatively long intermittent use. . Here, wear can be reduced by using a sliding contact material as the material for the contact 20 (the same applies to the contact 18 of the first contact spring 12 described later) and the swing contact 29. This contact between the swinging contact 29 and the contact 20 establishes electrical continuity between the common contact spring 13 and the second contact spring 14, which are constantly in contact with the swinging contact 29 via the contact 19, and the terminal 13
A, 13B and the terminal 14A are brought into conduction.

電磁石２１のコイル２３に通電されると、鉄心
２２を介して両ヨーク２４，２５に電磁吸引力が
生じ、接極子２６が復帰ばね３１の押圧力に抗し
て第２図中時計方向に回動され、第８図に示され
るように接極子２６の両端部が両ヨーク２４，２
５の段差部に当接した点で確実に停止され、鉄心
２２、ヨーク２４，接極子２６、ヨーク２５及び
鉄心２２を結ぶ磁路が形成される。これにより、
接極子２６にプリント基板３０を介して設けられ
た揺動接点２９の右端部は第２の接点ばね１４の
接点２０から離れて電気的に遮断され、第２の接
点ばね１４はストツパ３３に当接して停止され、
一方、左端部は第１の接点ばね１２の接点１８に
当接され、電気的導通がなされる。この揺動接点
２９と接点１８との接触にあつても、前記第７図
で説明したと同様にして大きな摺動量が得られ、
安定した接触状態が得られる。また、揺動接点２
９と接点１８との接触により、第１の接点ばね１
２とコモン接点ばね１３とが電気的に接続され、
端子１２Ａと端子１３Ａ，１３Ｂとが導通状態と
なる。以下、電磁石２１への通電あるいは遮断に
より上述の動作を繰返すこととなる。この際、コ
モン接点ばね１３はすり割溝１６が形成されて所
定のばね圧が与えられているため常に適正な接触
圧で揺動接点２９と接点１９との接触がなされる
こととなる。 When the coil 23 of the electromagnet 21 is energized, an electromagnetic attractive force is generated between the yokes 24 and 25 via the iron core 22, and the armature 26 rotates clockwise in FIG. 2 against the pressing force of the return spring 31. 8, both ends of the armature 26 are connected to both yokes 24,
It is reliably stopped at the point where it comes into contact with the stepped portion of No. 5, and a magnetic path connecting the iron core 22, yoke 24, armature 26, yoke 25, and iron core 22 is formed. This results in
The right end of the swing contact 29 provided on the armature 26 via the printed circuit board 30 is separated from the contact 20 of the second contact spring 14 and is electrically cut off, and the second contact spring 14 hits the stopper 33. stopped in contact with
On the other hand, the left end portion is brought into contact with the contact 18 of the first contact spring 12 to establish electrical continuity. Even in the contact between the swinging contact 29 and the contact 18, a large amount of sliding can be obtained in the same manner as explained with reference to FIG.
A stable contact condition can be obtained. In addition, the swing contact 2
9 and the contact 18, the first contact spring 1
2 and the common contact spring 13 are electrically connected,
The terminal 12A and the terminals 13A and 13B become electrically connected. Thereafter, the above-described operation is repeated by energizing or cutting off the electromagnet 21. At this time, since the common contact spring 13 is provided with the slotted groove 16 and given a predetermined spring pressure, the swinging contact 29 and the contact 19 are always brought into contact with an appropriate contact pressure.

上述のような本実施例によれば、シーソー状に
揺動運動する接極子２６を用い、この接極子２６
を電磁石２１で揺動させて接点開閉を行なうよう
にしたから、揺動接点２９と接点１８，２０との
摺動量を十分に大きくとれ、接点１８，２０，２
９の表面に接触時に新しい面が得られ、接触信頼
性を向上できる。また、第１、第２の接点ばね１
２，１４はスパンを長くしなくとも前述のように
摺動量を大きくとれるから、継電器を小型にでき
る。さらに、第１、第２の接点ばね１２，１４
は、ストツパ３２，３２により定位置で停止され
るから、所定の接点圧力と接点間隙とを得ること
ができ、動作の安定性を向上できる。またヨーク
２４，２５の段差に当接させて接極子２６を停止
させるとともに磁路の一部として用いるから、吸
着動作を確実にでき、且つ定位置に停止させるこ
とができる。さらに、復帰ばね３１を設けたか
ら、不動作状態では接極子２６を確実に一方に傾
けて常開接点、常閉接点を構成させ、電磁吸引力
によつて接極子２６が反転された場合には接点切
換え後の反動、バウンスを確実に防止できる。ま
た、揺動接点２９はプリント基板３０上に設けら
れる印刷接点で構成されているから、構造を簡単
且つ板厚を薄くでき、この点からも継電器の小型
化を図れる。さらに、従来のカードリフト構造の
所定の接点組立を備えたものと比べて接点ばねの
数が少なく構造が簡単であるから組立作業性を向
上でき、安価に提供できる。 According to this embodiment as described above, the armature 26 that swings like a seesaw is used, and the armature 26
Since the contacts are opened and closed by being swung by the electromagnet 21, the amount of sliding between the oscillating contact 29 and the contacts 18, 20 can be sufficiently large, and the contacts 18, 20, 2
A new surface is obtained when contacting the surface of 9, and contact reliability can be improved. In addition, the first and second contact springs 1
2 and 14, the amount of sliding can be increased as described above without increasing the span, so the relay can be made smaller. Furthermore, first and second contact springs 12 and 14
are stopped at a fixed position by the stoppers 32, 32, so that a predetermined contact pressure and contact gap can be obtained, and the stability of operation can be improved. Furthermore, since the armature 26 is stopped by coming into contact with the step between the yokes 24 and 25 and is used as part of the magnetic path, the attracting operation can be ensured and the armature 26 can be stopped at a fixed position. Furthermore, since the return spring 31 is provided, the armature 26 is surely tilted to one side in the non-operating state to form a normally open contact and a normally closed contact, and when the armature 26 is reversed by electromagnetic attraction force. Reliably prevents recoil and bounce after switching contacts. Furthermore, since the swing contact 29 is formed of a printed contact provided on the printed circuit board 30, the structure can be simplified and the plate thickness can be reduced, and from this point of view as well, the relay can be made smaller. Furthermore, compared to a conventional car drift structure with predetermined contact assemblies, the number of contact springs is small and the structure is simple, so assembly workability can be improved and it can be provided at low cost.

なお、実施にあたり、第１，第２の接点ばね１
２，１４は一方のみ設けて単なる接点の開閉のみ
を行なうようにしてもよく、また、揺動接点２９
は印刷接点に限らず、一般の接点部材で構成して
もよい。さらに、端子１２Ａ，１３Ａ，１３Ｂ，
１４Ａは、図示のようにいわゆるDIP端子に限ら
ず、他の形式の端子でもよく、且つ組立ての際に
一体的にするならば第１、第２の接点ばね１２，
１４あるいはコモン接点ばね１３と一体でなくと
もよいが、一体に設ければ組立作業性を向上でき
る利点がある。また、復帰ばね３１は図示のよう
に板ばねに限らず、コイルばね等他の形式のばね
あるいはゴム等の弾性部材でもよく、要するに接
極子２６を不動作時に所定方向に付勢する付勢手
段であればよい。 In addition, in implementation, the first and second contact springs 1
Only one of 2 and 14 may be provided to simply open and close the contact, or the swing contact 29
is not limited to printed contacts, but may be constructed from general contact members. Furthermore, terminals 12A, 13A, 13B,
14A is not limited to the so-called DIP terminal as shown in the figure, but may be any other type of terminal, and if integrated during assembly, the first and second contact springs 12,
14 or the common contact spring 13, but providing them integrally has the advantage of improving assembly workability. Further, the return spring 31 is not limited to a leaf spring as shown in the drawings, but may be another type of spring such as a coil spring, or an elastic member such as rubber. That's fine.

上述のように本発明によれば、小型で接点の摺
動量が大きく、且つ小さな電磁力で駆動可能な電
磁継電器を提供できるという効果がある。 As described above, according to the present invention, it is possible to provide an electromagnetic relay that is small in size, has a large contact sliding amount, and can be driven with a small electromagnetic force.

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

第１図は従来の電磁継電器の要部の概略構造を
示す断面図、第２図は本発明に係る電磁継電器の
一実施例を示す断面図、第３図は第２図の実施例
の分解斜視図、第４図は第３図の各接点ばねの折
曲げ状態を示す側面図、第５図は本実施例に用い
られる接極子及び揺動接点部分の斜視図、第６図
は第２図の実施例のカバーをはずした状態の斜視
図、第７図及び第８図はそれぞれ本実施例の動作
説明図である。 １２…第１の接点ばね、１３…コモン接点ば
ね、１４…第２の接点ばね、２１…電磁石、２
４，２５…ヨーク、２６…接極子、２７…揺動支
点部、２９…揺動接点、３…プリント基板、３１
…付勢手段としての復帰ばね。 Fig. 1 is a sectional view showing the schematic structure of the main parts of a conventional electromagnetic relay, Fig. 2 is a sectional view showing an embodiment of the electromagnetic relay according to the present invention, and Fig. 3 is an exploded view of the embodiment of Fig. 2. 4 is a side view showing the bent state of each contact spring in FIG. 3, FIG. 5 is a perspective view of the armature and swinging contact portion used in this embodiment, and FIG. A perspective view of the illustrated embodiment with the cover removed, and FIGS. 7 and 8 are explanatory views of the operation of this embodiment, respectively. 12...First contact spring, 13...Common contact spring, 14...Second contact spring, 21...Electromagnet, 2
4, 25... Yoke, 26... Armature, 27... Swinging fulcrum, 29... Swinging contact, 3... Printed circuit board, 31
...Return spring as biasing means.

Claims (1)

【特許請求の範囲】 １ 中間部を揺動自在に支持された平板状の接極
子と、 前記接極子の一面に設けられた揺動接点と、 前記接極子の少なくとも一端側に対向され、接
極子の揺動に伴なつて前記接極子の揺動接点に接
離される接点を有する接点ばねと、 前記揺動接点の揺動中心上で、揺動接点に常に
接触しているコモン接点ばねと、 前記接極子を、常時は前記揺動接点に対して前
記接点ばねが離れた、あるいは接触した位置に位
置させるように付勢する付勢手段と、 前記接極子の両端部の表面及び裏面に、互いに
逆極性に磁化される先端部がそれぞれ対向したヨ
ークを有し、該２つのヨーク先端部がそれぞれ対
向した接極子の両端部を磁気吸引して磁路を形成
することによつて、前記付勢手段に抗して前記接
極子を前記揺動支点を中心として回動させる電磁
石とを備え、 前記電磁石の通電と非通電とに応じて、前記接
極子を前記揺動支点を中心として揺動させて接極
子の前記揺動接点と前記接点ばねとを接離させる
ようにしたことを特徴とする電磁継電器。[Scope of Claims] 1. A planar armature whose intermediate portion is swingably supported, a swinging contact provided on one surface of the armature, and a contact located opposite to at least one end of the armature. a contact spring having a contact that comes into contact with and separates from the swinging contact of the armature as the pole swings; and a common contact spring that is always in contact with the swinging contact on the swinging center of the swinging contact. , biasing means for biasing the armature so that the contact spring is normally located at a position away from or in contact with the swinging contact; and on the front and back surfaces of both ends of the armature. , has yokes whose tips are magnetized with opposite polarities and are opposed to each other, and the two yoke tips magnetically attract opposite ends of the armature to form a magnetic path, thereby forming a magnetic path. an electromagnet that rotates the armature about the swing fulcrum against a biasing means, the armature swings about the swing fulcrum depending on whether the electromagnet is energized or de-energized; An electromagnetic relay characterized in that the oscillating contact of the armature and the contact spring are brought into contact and separated by moving the armature.