JPH06267390A - Electromagnetic relay - Google Patents
Electromagnetic relayInfo
- Publication number
- JPH06267390A JPH06267390A JP5268793A JP5268793A JPH06267390A JP H06267390 A JPH06267390 A JP H06267390A JP 5268793 A JP5268793 A JP 5268793A JP 5268793 A JP5268793 A JP 5268793A JP H06267390 A JPH06267390 A JP H06267390A
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- JP
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- Prior art keywords
- movable contact
- piece
- electromagnetic relay
- divided
- free end
- 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.)
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は電磁継電器、特に、メイ
ク・ビフォア・ブレイク（Ｍａｋｅ−Ｂｅｆｏｒｅ−Ｂ
ｒｅａｋ（以下、「ＭＢＢ」という。））接点機構を有
する電磁継電器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic relay, and in particular, a make-before-break (Make-Before-B).
The present invention relates to an electromagnetic relay having a reak (hereinafter referred to as "MBB") contact mechanism.
【０００２】[0002]
【従来の技術】従来、ＭＢＢ接点機構を有する電磁継電
器としては、例えば、図１２ないし図２２に示すよう
に、断面略Ｃ字形の箱形ベース１０と、この箱形ベース
１０の上面両側に形成された接点機構２０，２０と、電
磁石部３０と、断面略く字形の可動鉄片４０と、この可
動鉄片４０を付勢するヒンジばね５０と、前記ベース１
０に嵌合可能な外形形状を有するケース６０とからなる
ものである。2. Description of the Related Art Conventionally, as an electromagnetic relay having an MBB contact mechanism, for example, as shown in FIGS. 12 to 22, a box base 10 having a substantially C-shaped cross section and formed on both sides of the upper surface of the box base 10. The contact mechanisms 20, 20, the electromagnet section 30, the movable iron piece 40 having a substantially V-shaped cross section, the hinge spring 50 for urging the movable iron piece 40, and the base 1
And a case 60 having an outer shape that can be fitted to zero.
【０００３】前記箱形ベース１０は対向する側壁に端子
孔１１，１２，１３を有するもので、側方に開口部を有
する空洞部１４を設けてある。The box-shaped base 10 has terminal holes 11, 12 and 13 on opposite side walls, and a cavity 14 having an opening on the side.
【０００４】接点機構２０，２０は、固定接点２１ａを
有する常閉固定接点端子２１、可動接触片２４を有する
可動接点端子２２および固定接点２３ａを設けた常開固
定接点端子２３を、前記ベース１０の端子孔１１，１
２，１３に順次圧入して一体化することにより、形成さ
れる。The contact mechanisms 20, 20 include a normally closed fixed contact terminal 21 having a fixed contact 21a, a movable contact terminal 22 having a movable contact piece 24, and a normally open fixed contact terminal 23 having a fixed contact 23a. Terminal holes 11, 1
It is formed by sequentially press-fitting into 2 and 13 and integrating them.
【０００５】特に、前記可動接触片２４は、巾方向に２
分割して形成した分割片２５，２６からなり、この分割
片２５，２６はいずれも下方側に折り曲げられ、特に、
分割片２５は下方側により大きく折り曲げられている。
そして、分割片２５の先端部下面に設けた接点は常閉可
動接点２５ａとして作用し、分割片２６の先端部上面に
設けた接点は常開可動接点２６ａとして作用する。In particular, the movable contact piece 24 has a width of 2
It is composed of divided pieces 25 and 26 formed by dividing, and each of the divided pieces 25 and 26 is bent downward,
The divided piece 25 is largely bent downward.
The contact provided on the lower surface of the tip of the split piece 25 acts as a normally closed movable contact 25a, and the contact provided on the upper surface of the tip of the split piece 26 acts as a normally open movable contact 26a.
【０００６】前記電磁石部３０はコイル３１を巻回した
スプール３２に鉄芯３３を挿通し、突出する一端部を磁
極部３３ａとし、突出する他端部３３ｂ（図１４）を略
Ｌ字形状に屈曲したヨーク３４の垂直部３５にカシメ固
定したものである。なお、スプール３２の鍔部３２ａに
設けたコイル端子３６にはコイル３１の引き出し線をか
らげてハンダ付けしてある。そして、電磁石部３０は前
記ベース１０の空洞部１４に側方から圧入して固定され
る。In the electromagnet section 30, an iron core 33 is inserted into a spool 32 around which a coil 31 is wound, one projecting end portion serves as a magnetic pole portion 33a, and the projecting other end portion 33b (FIG. 14) has a substantially L-shape. The bent yoke 34 is fixed to the vertical portion 35 by crimping. The lead wire of the coil 31 is twisted and soldered to the coil terminal 36 provided on the collar portion 32a of the spool 32. Then, the electromagnet portion 30 is press-fitted and fixed in the cavity portion 14 of the base 10 from the side.
【０００７】前記可動鉄片４０は水平部４１の先端にカ
ード４３を設けたもので、前記カード４３の上面には分
割片２６にのみ当接する突部４４が突設されている。The movable iron piece 40 is provided with a card 43 at the tip of a horizontal portion 41, and a projection 44 that abuts only the divided piece 26 is provided on the upper surface of the card 43.
【０００８】そして、前記可動鉄片４０を電磁石部３０
に組み付け、その内面角部をヨーク３４の水平先端縁部
に位置決めし、正面略Ｈ字形状のヒンジばね５０を前記
ケース６０の受け部１５，１５および電磁石部３０のス
プール３２の鍔部３２ａに係止することにより、ヒンジ
ばね５０の中央部から延在する弾性舌片５１が可動鉄片
４０の外面角部を付勢するので、可動鉄片４０が回動可
動に支持される。The movable iron piece 40 is attached to the electromagnet section 30.
The inner surface corner portion is positioned at the horizontal tip edge portion of the yoke 34, and the hinge spring 50 having a substantially H-shaped front surface is attached to the receiving portions 15 and 15 of the case 60 and the collar portion 32a of the spool 32 of the electromagnet portion 30. By locking, the elastic tongue piece 51 extending from the central portion of the hinge spring 50 biases the outer surface corner portion of the movable iron piece 40, so that the movable iron piece 40 is rotatably supported.
【０００９】そして、前記ベース１０にケース６０を嵌
合し、前記ベース１０の底面にシール剤６１を注入，固
化することにより、組み立て作業が完了する。Then, the case 60 is fitted to the base 10 and the sealant 61 is injected and solidified on the bottom surface of the base 10 to complete the assembly work.
【００１０】次に、従来例にかかる電磁継電器の動作に
ついて説明する。まず、無励磁の場合、可動接触片２４
のばね力により、可動鉄片４０の水平先端部４１が下方
側に付勢され、常閉可動接点２５ａが固定接点２１ａに
圧接している（図１４、図１９（ａ））。Next, the operation of the electromagnetic relay according to the conventional example will be described. First, in the case of non-excitation, the movable contact piece 24
The horizontal tip portion 41 of the movable iron piece 40 is urged downward by the spring force, and the normally closed movable contact 25a is in pressure contact with the fixed contact 21a (FIGS. 14 and 19A).
【００１１】ついで、前記電磁石部３０のコイル３１に
電圧を印加して励磁すると、鉄芯３３の磁極部３３ａが
可動鉄片４０の垂直部４２を吸引するので、可動鉄片４
０がヨーク３４の上面先端縁部を支点に回動する。そし
て、まず、カード４３の突部４４が分割片２６を押し上
げ、可動接点２６ａが固定接点２３ａに接触する。この
ため、可動接点２５ａ，２６ａが固定接点２１ａ，２３
ａにそれぞれ同時に接触し、ＭＢＢ接点機構を構成する
（図１９（ｂ））。さらに、可動鉄片４０が回動する
と、可動接点２６ａが固定接点２３ａに圧接するととも
に、カード４３が分割片２５を押し上げるので、可動接
点２５ａが固定接点２１ａから開離する（図１９
（ｃ））。Then, when a voltage is applied to the coil 31 of the electromagnet portion 30 to excite it, the magnetic pole portion 33a of the iron core 33 attracts the vertical portion 42 of the movable iron piece 40.
0 rotates about the tip edge of the upper surface of the yoke 34 as a fulcrum. Then, first, the protrusion 44 of the card 43 pushes up the divided piece 26, and the movable contact 26a comes into contact with the fixed contact 23a. Therefore, the movable contacts 25a and 26a are fixed to the fixed contacts 21a and 23.
Each of them simultaneously contacts a and forms an MBB contact mechanism (FIG. 19B). Further, when the movable iron piece 40 rotates, the movable contact 26a comes into pressure contact with the fixed contact 23a and the card 43 pushes up the divided piece 25, so that the movable contact 25a is separated from the fixed contact 21a (FIG. 19).
(C)).
【００１２】そして、前記励磁を解くと、分割片２５，
２６のばね力により、カード４３が押し下げられ、可動
鉄片４０が回動する。このため、常閉可動接点２５ａが
固定接点２１ａに接触し、可動接点２５ａ，２６ａが固
定接点２１ａ，２３ａに同時に接触してＭＢＢ接点機構
を構成する（図２１（ｂ））。さらに、可動鉄片４０が
回動すると、常閉可動接点２５ａが固定接点２１ａに圧
接し、可動接点２６ａが固定接点２３ａから開離して元
の状態に復帰する（図２１（ｃ））。When the excitation is released, the divided pieces 25,
The card 43 is pushed down by the spring force of 26, and the movable iron piece 40 rotates. Therefore, the normally closed movable contact 25a comes into contact with the fixed contact 21a, and the movable contacts 25a and 26a come into contact with the fixed contacts 21a and 23a at the same time to form an MBB contact mechanism (FIG. 21 (b)). Further, when the movable iron piece 40 rotates, the normally closed movable contact 25a comes into pressure contact with the fixed contact 21a, and the movable contact 26a separates from the fixed contact 23a and returns to the original state (FIG. 21 (c)).
【００１３】[0013]
【発明が解決しようとする課題】しかしながら、従来例
にかかる電磁継電器では、動作時，復帰時に図２０，図
２２で示すタイムチャート図のように、可動接点２５
ａ，２６ａにバウンシングが生じやすい。特に、動作時
においてはカード４３が可動接触片２４を押圧して位置
規制するので、バウンシングが抑制され、収束しやすい
が、復帰時の場合には分割片２５がいわばフリー状態と
なる。しかも、図１６および図１７に示すように、分割
片２５は支点間距離ｌ2で復帰するため、バウンシング
が非常に大きい。このため、所望の開閉性能が得られ
ず、電気的寿命が短かい。さらに、図２０のＢゾーンや
図２２のＦゾーンで示すように、安定したＭＢＢ特性が
得にくく、接点ノイズが発生しやすいので、これが電気
回路に悪影響を与えるという問題点がある。However, in the electromagnetic relay according to the conventional example, the movable contact 25 is provided at the time of operation and restoration as shown in the time charts of FIGS.
Bouncing is likely to occur in a and 26a. In particular, during operation, the card 43 presses the movable contact piece 24 to regulate its position, so that bouncing is suppressed and it is easy to converge, but when returning, the divided piece 25 is in a so-called free state. Moreover, as shown in FIGS. 16 and 17, the split piece 25 returns at the distance l 2 between the fulcrums, so that the bouncing is very large. Therefore, desired opening / closing performance cannot be obtained, and the electrical life is short. Further, as shown in the B zone of FIG. 20 and the F zone of FIG. 22, it is difficult to obtain a stable MBB characteristic and contact noise is likely to occur, which causes a problem that the electric circuit is adversely affected.
【００１４】本発明は、前記問題点に鑑み、可動接点の
バウンシング、特に、復帰時における常閉可動接点のバ
ウンシングが小さい電磁継電器を提供することを目的と
する。In view of the above problems, it is an object of the present invention to provide an electromagnetic relay in which the bouncing of the movable contact, particularly the bouncing of the normally closed movable contact at the time of restoration is small.
【００１５】[0015]
【課題を解決するための手段】本発明は、前記目的を達
成するため、可動接点端子に一端部を固定した可動接触
片の自由端部を巾方向に２分割して分割片を形成し、一
方の分割片の自由端部に常閉可動接点を設ける一方、他
方の分割片の自由端部に常開可動接点を設けた電磁継電
器において、前記可動接点端子に、常閉可動接点を設け
た分割片が復帰する際に当接する位置規制用舌部を設け
た構成としたものである。また、可動接触片の一端側を
巾方向に２分割して形成した分割片のうち、一方の分割
片の自由端部に常閉可動接点を設け、他方の分割片の自
由端部に常開可動接点を設けるとともに、常閉可動接点
を設けた分割片の軸心上で可動接触片の他端部を可動接
点端子に固定し、常閉可動接点を設けた分割片が復帰す
る際に前記可動接点端子の縁部に当接して位置規制され
る構成としたものであってもよい。さらに、一方の分割
片の自由端部に常閉可動接点を設け、他方の分割片の自
由端部に常開可動接点を設けた略Ｕ字形状の可動接触片
の間に可動接点端子の上端部をはさみ込み、各分割片の
基部を可動接点端子にそれぞれ固定し、常閉可動接点を
設けた分割片が復帰する際に可動接点端子の縁部に当接
して位置規制される構成であってもよい。そして、可動
接触片の一端側を巾方向に２分割して形成した分割片の
うち、一方の分割片の自由端部に常閉可動接点を設ける
一方、他方の自由端部に延在部を設け、この延在部のう
ち、前記常閉可動接点を設けた分割片の軸心の延長線上
に位置する部分に常開可動接点を設けた構成であっても
よい。In order to achieve the above-mentioned object, the present invention forms a divided piece by dividing the free end of a movable contact piece whose one end is fixed to a movable contact terminal into two in the width direction, An electromagnetic relay in which a normally closed movable contact is provided at the free end of one of the divided pieces and a normally open movable contact is provided at the free end of the other divided piece, in which the normally closed movable contact is provided at the movable contact terminal. The configuration is such that a position regulating tongue portion is provided that abuts when the divided pieces return. Also, of the divided pieces formed by dividing one end side of the movable contact piece into two in the width direction, a normally closed movable contact is provided at the free end of one divided piece, and the normally open contact is provided at the free end of the other divided piece. While the movable contact is provided, the other end of the movable contact piece is fixed to the movable contact terminal on the axis of the divided piece provided with the normally closed movable contact, and when the divided piece provided with the normally closed movable contact returns, The movable contact terminal may be in contact with the edge portion of the movable contact terminal to regulate the position. Further, a normally closed movable contact is provided at the free end of one of the divided pieces, and a normally open movable contact is provided at the free end of the other divided piece. The divided parts are sandwiched, the base of each divided piece is fixed to the movable contact terminal, and the divided piece provided with the normally closed movable contact comes into contact with the edge of the movable contact terminal to regulate the position when returning. May be. Of the divided pieces formed by dividing one end side of the movable contact piece into two in the width direction, one of the divided pieces is provided with a normally-closed movable contact at the free end, while the other free end is provided with an extending portion. Alternatively, the normally open movable contact may be provided at a portion of the extending portion located on the extension line of the axis of the divided piece provided with the normally closed movable contact.
【００１６】[0016]
【作用】したがって、本発明の請求項１ないし請求項４
によれば、常閉可動接点を有する分割片が復帰する際に
可動接点端子の縁部に当接して位置規制されることにな
る。Therefore, the first to fourth aspects of the present invention are provided.
According to this, when the divided piece having the normally-closed movable contact returns, it comes into contact with the edge portion of the movable contact terminal and its position is regulated.
【００１７】[0017]
【実施例】次に、本発明にかかる電磁継電器の実施例を
図１ないし図１１の添付図面に従って説明する。本実施
例にかかる電磁継電器は、接点機構２０を除き、前述の
従来例と同様であるので、説明の便宜上、異なる接点機
構のみを図示して説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of an electromagnetic relay according to the present invention will be described with reference to the accompanying drawings of FIGS. The electromagnetic relay according to the present embodiment is the same as the above-described conventional example except for the contact mechanism 20, so only different contact mechanisms will be illustrated and described for convenience of description.
【００１８】第１実施例は、図１ないし図３に示すよう
に、前述の従来例とほぼ同様であり、異なる点は可動接
点端子２２に対する可動接触片２４の支持構造である。As shown in FIGS. 1 to 3, the first embodiment is substantially the same as the above-mentioned conventional example, except that the movable contact piece 24 is supported by the movable contact terminal 22.
【００１９】すなわち、可動接点端子２２の上端面に可
動接触片２４の一端部がカシメ固定されているととも
に、前記可動接点端子２２の上端部から分割片２５の下
面に当接する位置規制用舌部２２ａが側方に突出してい
る。That is, one end of the movable contact piece 24 is fixed to the upper end surface of the movable contact terminal 22 by crimping, and the position regulating tongue portion is in contact with the lower surface of the split piece 25 from the upper end of the movable contact terminal 22. 22a projects laterally.
【００２０】したがって、電磁石部３０を励磁して可動
鉄片４０を回動し、カード４３で分割片２５，２６を押
圧すると、分割片２５はカード４３からカシメ部の基部
までの支点間距離ｌ1で回動し、分割片２６も同一の支
点間距離ｌ3で回動する。Therefore, when the movable iron piece 40 is rotated by exciting the electromagnet portion 30 and the divided pieces 25 and 26 are pressed by the card 43, the divided piece 25 has a distance l 1 between fulcrums from the card 43 to the base of the caulking portion. And the divided piece 26 also rotates with the same fulcrum distance l 3 .
【００２１】そして、電磁石部３０の励磁を解いて可動
鉄片４０を復帰させると、分割片２５は位置規制用舌部
２２ａの先端縁部に当接するので、支点間距離がｌ2と
なるのに対し、分割片２６は可動接点端子２２の上端面
縁部に当接するので、支点間距離がｌ4となる。When the movable iron piece 40 is returned by releasing the excitation of the electromagnet portion 30, the divided piece 25 contacts the tip edge portion of the position regulating tongue portion 22a, so that the fulcrum distance becomes l 2. On the other hand, since the split piece 26 abuts on the edge of the upper end surface of the movable contact terminal 22, the distance between fulcrums is l 4 .
【００２２】したがって、復帰する際は分割片２５の方
が分割片２６よりも支点間距離が短かいので、ばね定数
が大きくなり、バウンシングが生じにくい。Therefore, when returning, the split piece 25 has a shorter fulcrum distance than the split piece 26, so that the spring constant becomes large and bouncing hardly occurs.
【００２３】第２実施例は、図４ないし図６に示すよう
に、分割片２５，２６を有する可動接触片２４を、分割
片２５の軸心上で可動接点端子２２にカシメ固定した場
合である。In the second embodiment, as shown in FIGS. 4 to 6, the movable contact piece 24 having the divided pieces 25 and 26 is fixed to the movable contact terminal 22 by caulking on the axis of the divided piece 25. is there.
【００２４】したがって、動作する場合には、分割片２
５はカード４４からカシメ部の基部までを支点間距離ｌ
1として動作するのに対し、分割片２６はカード４３の
突部４４から分割片２６の基部までを支点間距離ｌ4と
して動作する。Therefore, when operating, the divided piece 2
5 is the distance l between the fulcrums from the card 44 to the base of the caulking part
While the divided piece 26 operates as 1 , the divided piece 26 operates from the protrusion 44 of the card 43 to the base of the divided piece 26 as the inter-fulcrum distance l 4 .
【００２５】そして、動作状態から復帰する場合には、
分割片２５は固定接点２１ａから可動接点端子２２の先
端縁部までを支点間距離ｌ2として復帰するのに対し、
分割片２６は固定接点２１ａからその基部までを支点間
距離ｌ4として復帰する。When returning from the operating state,
Divided pieces 25 while returning from the fixed contact 21a to the distal end portion of the movable contact terminal 22 as the fulcrum distance l 2,
Divided piece 26 returns up its base as a fulcrum distance l 4 from the fixed contact 21a.
【００２６】したがって、復帰する場合における分割片
２５の支点間距離ｌ2は分割片２６のそれよりも短かい
ので、ばね定数が大きくなり、バウンシングが生じにく
い。Therefore, since the distance l 2 between the fulcrums of the split piece 25 when returning is shorter than that of the split piece 26, the spring constant becomes large and bouncing is unlikely to occur.
【００２７】第３実施例は、図７ないし図９に示すよう
に、略Ｕ字形の可動接触片２４の間に可動接点端子２２
の上端部をはさみ込むようにして取り付けた場合であ
る。特に、本実施例では、分割片２５を可動接点端子２
２の上端部の上面に配置する一方、分割片２６を可動接
点端子２２の上端部の下面に配置し、それぞれの基部を
可動接点端子２２の上端部にカシメ固定してある。In the third embodiment, as shown in FIGS. 7 to 9, the movable contact terminal 22 is provided between the movable contact pieces 24 having a substantially U shape.
It is the case where it is attached by inserting the upper end of the. In particular, in this embodiment, the split piece 25 is used as the movable contact terminal 2.
The divided pieces 26 are arranged on the lower surface of the upper end of the movable contact terminal 22, while the divided pieces 26 are arranged on the upper surface of the upper end of the movable contact terminal 22.
【００２８】このため、本実施例によれば、動作する場
合には、分割片２５はカード４３からかしめ部の基部ま
でを支点間距離ｌ1として動作するのに対し、分割片２
６はカード４３の突部４４から可動接点端子２２の先端
縁部までを支点間距離ｌ3として動作する。Therefore, according to the present embodiment, when operating, the dividing piece 25 operates with the distance from the card 43 to the base of the caulking portion as the fulcrum distance l 1 , while the dividing piece 2 operates.
6 operates from the protrusion 44 of the card 43 to the tip edge of the movable contact terminal 22 with the inter-fulcrum distance l 3 .
【００２９】そして、復帰する場合には、分割片２５は
固定接点２１ａから可動接点端子２２の上端部の縁部ま
でを支点間距離ｌ2として復帰するのに対し、分割片２
６は固定接点２１ａからかしめ部の基部までを支点間距
離ｌ4として復帰する。When returning, the split piece 25 returns from the fixed contact 21a to the edge of the upper end of the movable contact terminal 22 with the inter-fulcrum distance l 2 while the split piece 2 returns.
6 returns from the fixed contact 21a to the base of the caulking portion as a fulcrum distance l 4.
【００３０】したがって、復帰する場合における分割片
２５の支点間距離ｌ2は分割片２６の支点間距離ｌ4より
も短かいので、前述の実施例と同様、バウンシングが低
減する。Therefore, since the distance l 2 between the fulcrums of the divided pieces 25 when returning is shorter than the distance l 4 between the fulcrums of the divided pieces 26, bouncing is reduced as in the above-described embodiment.
【００３１】第４実施例は、図１０および図１１に示す
ように、前述の実施例はいずれもが分割片２５，２６の
全長を等しくした場合であるのに対し、全長を異ならし
めた場合である。In the fourth embodiment, as shown in FIGS. 10 and 11, in the above-described embodiments, the split pieces 25 and 26 have the same total length, but the total length is different. Is.
【００３２】すなわち、先端部に延在部２７を設けて略
Ｌ字形状の分割片２６を形成し、分割片２５の常閉可動
接点２５ａと分割片２６の延在部２７に設けた常開可動
接点２６ａとが、前記分割片２５の軸心上に位置するも
のである。That is, the extending portion 27 is provided at the tip end portion to form the substantially L-shaped divided piece 26, and the normally closed movable contact 25a of the divided piece 25 and the normally open portion provided on the extended portion 27 of the divided piece 26. The movable contact 26a is located on the axis of the divided piece 25.
【００３３】本実施例によれば、動作，復帰する場合に
おける分割片２５の支点間距離ｌ1,l2は、分割片２６の
支点間距離ｌ3，ｌ4よりもそれぞれ短かく、ばね定数が
大きいので、バウンシングが低減する。According to this embodiment, the fulcrum distances l 1 and l 2 of the split piece 25 when operating and returning are shorter than the fulcrum distances l 3 and l 4 of the split piece 26, respectively, and the spring constant is constant. Is large, so bouncing is reduced.
【００３４】しかも、可動接点２５ａ，２６ａが固定接
点２１ａの上面に重なり合い、従来例のいわゆるクロス
バー接点のように可動接点２５ａ，２６ａの一部が固定
接点２１ａに接触しない場合がない。このため、可動接
点２５ａの部分的な摩耗がなく、接点寿命が伸び、接触
信頼性が向上するという利点がある。Moreover, the movable contacts 25a and 26a overlap the upper surface of the fixed contact 21a, and there is no case where the movable contacts 25a and 26a partially contact the fixed contact 21a unlike the so-called crossbar contact of the conventional example. Therefore, there is an advantage that the movable contact 25a is not partially worn, the contact life is extended, and the contact reliability is improved.
【００３５】[0035]
【発明の効果】以上の説明から明らかなように、本発明
にかかる請求項１ないし請求項４によれば、常閉可動接
点を設けた分割片が復帰する際に可動接点端子の縁部に
当接して位置規制されるので、この分割片が復帰する際
の支点間距離が短かい。このため、常閉可動接点を設け
た分割片が復帰する場合には、動作する場合よりもばね
定数が大きくなり、バウンシングが低減する。この結
果、所望の開閉性能が得られ、電気的寿命が長くなる。
しかも、安定したＭＢＢ特性が得られ、接点ノイズの発
生を防止するので、電気回路への悪影響を防止できる。
特に、本発明によれば、可動接触片および可動接点端子
の形状が簡単であり、プレス金型の構造が簡単であるの
で、生産性を維持でき、生産コストも増大しない。ま
た、請求項４によれば、常閉可動接点および常開可動接
点のいずれもが、固定接点の上面に全面的に重なり合う
ので、従来のようないわゆるクロスバー接点のように、
可動接点の一部が固定接点に非接触となることがない。
このため、可動接点の一部が部分的に摩耗することがな
いので、接点寿命が伸び、接触信頼性が向上するという
効果がある。As is apparent from the above description, according to the first to fourth aspects of the present invention, when the divided piece provided with the normally-closed movable contact is restored, the movable contact terminal has an edge portion. Since the position is abutted and regulated, the distance between the fulcrums when the divided pieces return is short. For this reason, when the divided piece provided with the normally closed movable contact returns, the spring constant becomes larger than that in the case where it operates, and the bouncing is reduced. As a result, desired opening / closing performance is obtained and the electrical life is extended.
Moreover, stable MBB characteristics are obtained and contact noise is prevented from occurring, so that adverse effects on the electric circuit can be prevented.
In particular, according to the present invention, the movable contact piece and the movable contact terminal have a simple shape, and the structure of the press die is simple, so that the productivity can be maintained and the production cost does not increase. Further, according to claim 4, since both the normally closed movable contact and the normally opened movable contact entirely overlap the upper surface of the fixed contact, like a conventional so-called crossbar contact,
Part of the movable contact does not come into contact with the fixed contact.
For this reason, the movable contacts are not partly worn, so that the life of the contacts is extended and the contact reliability is improved.
【図１】 本発明にかかる電磁継電器の第１実施例を示
す要部拡大平面図である。FIG. 1 is an enlarged plan view of essential parts showing a first embodiment of an electromagnetic relay according to the present invention.
【図２】 本発明にかかる電磁継電器の第１実施例を示
す要部拡大正面図である。FIG. 2 is an enlarged front view of essential parts showing a first embodiment of an electromagnetic relay according to the present invention.
【図３】 本発明にかかる電磁継電器の第１実施例を示
す要部拡大正面図である。FIG. 3 is an enlarged front view of an essential part showing the first embodiment of the electromagnetic relay according to the present invention.
【図４】 本発明にかかる電磁継電器の第２実施例を示
す要部拡大平面図である。FIG. 4 is an enlarged plan view of an essential part showing a second embodiment of the electromagnetic relay according to the present invention.
【図５】 本発明にかかる電磁継電器の第２実施例を示
す要部拡大正面図である。FIG. 5 is an enlarged front view of essential parts showing a second embodiment of the electromagnetic relay according to the present invention.
【図６】 本発明にかかる電磁継電器の第２実施例を示
す要部拡大正面図である。FIG. 6 is an enlarged front view of an essential part showing a second embodiment of the electromagnetic relay according to the present invention.
【図７】 本発明にかかる電磁継電器の第３実施例を示
す要部拡大平面図である。FIG. 7 is an enlarged plan view of an essential part showing a third embodiment of the electromagnetic relay according to the present invention.
【図８】 本発明にかかる電磁継電器の第３実施例を示
す要部拡大正面図である。FIG. 8 is an enlarged front view of essential parts showing a third embodiment of the electromagnetic relay according to the present invention.
【図９】 本発明にかかる電磁継電器の第３実施例を示
す要部拡大正面図である。FIG. 9 is an enlarged front view of essential parts showing a third embodiment of the electromagnetic relay according to the present invention.
【図１０】 本発明にかかる電磁継電器の第４実施例を
示す要部拡大平面図である。FIG. 10 is an enlarged plan view of essential parts showing a fourth embodiment of the electromagnetic relay according to the present invention.
【図１１】 本発明にかかる電磁継電器の第４実施例を
示す要部拡大側面図である。FIG. 11 is an enlarged side view of essential parts showing a fourth embodiment of the electromagnetic relay according to the present invention.
【図１２】 従来例にかかる電磁継電器を示す分解斜視
図である。FIG. 12 is an exploded perspective view showing an electromagnetic relay according to a conventional example.
【図１３】 従来例にかかる電磁継電器を示す平面断面
図である。FIG. 13 is a plan sectional view showing an electromagnetic relay according to a conventional example.
【図１４】 従来例にかかる電磁継電器を示す正面断面
図である。FIG. 14 is a front sectional view showing an electromagnetic relay according to a conventional example.
【図１５】 従来例にかかる電磁継電器を示す側面断面
図である。FIG. 15 is a side sectional view showing an electromagnetic relay according to a conventional example.
【図１６】 従来例にかかる電磁継電器を示す要部拡大
平面図である。FIG. 16 is an enlarged plan view of an essential part showing an electromagnetic relay according to a conventional example.
【図１７】 従来例にかかる電磁継電器を示す要部拡大
正面図である。FIG. 17 is an enlarged front view of an essential part showing an electromagnetic relay according to a conventional example.
【図１８】 従来例にかかる電磁継電器を示す要部拡大
正面図である。FIG. 18 is an enlarged front view of essential parts showing an electromagnetic relay according to a conventional example.
【図１９】 従来例にかかる電磁継電器の動作を示し、
（ａ）は復帰状態を示し、（ｂ）は動作途中の状態を示
し、（ｃ）は動作完了後を示す要部拡大側面図である。FIG. 19 shows the operation of the electromagnetic relay according to the conventional example,
(A) is a recovery state, (b) is a state in the middle of operation, (c) is an enlarged side view of the main parts showing after the operation is completed.
【図２０】 従来例にかかる電磁継電器の復帰状態から
動作状態を示すタイムチャート図である。FIG. 20 is a time chart diagram showing an operation state from a return state of the electromagnetic relay according to the conventional example.
【図２１】 従来例にかかる電磁継電器の動作を示し、
（ａ）は動作状態を示し、（ｂ）復帰途中の状態を示
し、（ｃ）は復帰完了後を示す要部拡大側面図である。FIG. 21 shows an operation of an electromagnetic relay according to a conventional example,
(A) is an operation | movement state, (b) shows the state in the middle of return, (c) is a principal part expanded side view which shows after completion | finish of return.
【図２２】 従来例にかかる電磁継電器の動作状態から
復帰状態を示すタイムチャート図である。FIG. 22 is a time chart diagram showing a return state from an operating state of the electromagnetic relay according to the conventional example.
２１，２３…固定接点端子、２１ａ，２３ａ…固定接
点、２２…可動接点端子、２２ａ…位置規制用舌部、２
４…可動接触片、２５，２６…分割片、２５ａ…常閉可
動接点、２６ａ…常開可動接触片、４３…カード、４４
…突部。21, 23 ... Fixed contact terminal, 21a, 23a ... Fixed contact, 22 ... Movable contact terminal, 22a ... Position regulating tongue part, 2
4 ... Movable contact piece, 25, 26 ... Division piece, 25a ... Normally closed movable contact, 26a ... Normally open movable contact piece, 43 ... Card, 44
… Protrusion.
Claims (4)
触片の自由端部を巾方向に２分割して分割片を形成し、
一方の分割片の自由端部に常閉可動接点を設ける一方、
他方の分割片の自由端部に常開可動接点を設けた電磁継
電器において、 前記可動接点端子に、常閉可動接点を設けた分割片が復
帰する際に当接する位置規制用舌部を設けたことを特徴
とする電磁継電器。1. A movable contact piece whose one end is fixed to a movable contact terminal is divided into two pieces in a width direction to form a divided piece,
While providing a normally closed movable contact at the free end of one of the divided pieces,
In an electromagnetic relay having a normally open movable contact at the free end of the other segment, the movable contact terminal is provided with a position regulating tongue that abuts when the segment provided with the normally closed movable contact returns. Electromagnetic relay characterized by the following.
て形成した分割片のうち、一方の分割片の自由端部に常
閉可動接点を設け、他方の分割片の自由端部に常開可動
接点を設けるとともに、常閉可動接点を設けた分割片の
軸心上で可動接触片の他端部を可動接点端子に固定し、
常閉可動接点を設けた分割片が復帰する際に前記可動接
点端子の縁部に当接して位置規制されることを特徴とす
る電磁継電器。2. A normally closed movable contact is provided at the free end of one of the split pieces formed by splitting one end of the movable contact piece in the width direction and the free end of the other split piece. In addition to the normally open movable contact, the other end of the movable contact piece is fixed to the movable contact terminal on the axis of the divided piece provided with the normally closed movable contact.
An electromagnetic relay, characterized in that when a segmented piece provided with a normally-closed movable contact is restored, the divided piece comes into contact with an edge of the movable contact terminal and is regulated in position.
を設け、他方の分割片の自由端部に常開可動接点を設け
た略Ｕ字形状の可動接触片の間に可動接点端子の上端部
をはさみ込み、各分割片の基部を可動接点端子にそれぞ
れ固定し、常閉可動接点を設けた分割片が復帰する際に
可動接点端子の縁部に当接して位置規制されることを特
徴とする電磁継電器。3. A movable contact between substantially U-shaped movable contact pieces in which a normally closed movable contact is provided at a free end of one divided piece and a normally open movable contact is provided at a free end of the other divided piece. The upper end of the terminal is sandwiched, the base of each divided piece is fixed to the movable contact terminal, and the divided piece provided with the normally-closed movable contact comes into contact with the edge of the movable contact terminal to regulate its position. Electromagnetic relay characterized by the following.
て形成した分割片のうち、一方の分割片の自由端部に常
閉可動接点を設ける一方、他方の自由端部に延在部を設
け、この延在部のうち、前記常閉可動接点を設けた分割
片の軸心の延長線上に位置する部分に常開可動接点を設
けたことを特徴とする電磁継電器。4. A normally-closed movable contact is provided at the free end of one of the split pieces formed by splitting one end of the movable contact piece in the width direction, while extending to the other free end. An electromagnetic relay, characterized in that an existing portion is provided, and a normally open movable contact is provided at a portion of the extended portion that is located on an extension line of the axis of the divided piece provided with the normally closed movable contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05268793A JP3440380B2 (en) | 1993-03-12 | 1993-03-12 | Electromagnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05268793A JP3440380B2 (en) | 1993-03-12 | 1993-03-12 | Electromagnetic relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06267390A true JPH06267390A (en) | 1994-09-22 |
| JP3440380B2 JP3440380B2 (en) | 2003-08-25 |
Family
ID=12921806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05268793A Expired - Fee Related JP3440380B2 (en) | 1993-03-12 | 1993-03-12 | Electromagnetic relay |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3440380B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7423504B2 (en) * | 2005-04-12 | 2008-09-09 | Nec Tokin Corporation | Electromagnetic relay |
| CN104969325A (en) * | 2013-12-27 | 2015-10-07 | 欧姆龙株式会社 | Electromagnetic relay |
-
1993
- 1993-03-12 JP JP05268793A patent/JP3440380B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7423504B2 (en) * | 2005-04-12 | 2008-09-09 | Nec Tokin Corporation | Electromagnetic relay |
| CN104969325A (en) * | 2013-12-27 | 2015-10-07 | 欧姆龙株式会社 | Electromagnetic relay |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3440380B2 (en) | 2003-08-25 |
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