JPH0453059B2 - - Google Patents

Info

Publication number
JPH0453059B2
JPH0453059B2 JP60008614A JP861485A JPH0453059B2 JP H0453059 B2 JPH0453059 B2 JP H0453059B2 JP 60008614 A JP60008614 A JP 60008614A JP 861485 A JP861485 A JP 861485A JP H0453059 B2 JPH0453059 B2 JP H0453059B2
Authority
JP
Japan
Prior art keywords
movable contact
movable
contact
movable block
coil
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
Application number
JP60008614A
Other languages
Japanese (ja)
Other versions
JPS61168831A (en
Inventor
Katsuto Kojima
Juichi Kamo
Nobuo Mikami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP861485A priority Critical patent/JPS61168831A/en
Priority to US06/756,358 priority patent/US4614927A/en
Priority to CA000487106A priority patent/CA1241362A/en
Priority to EP85305154A priority patent/EP0169714B1/en
Priority to DE8585305154T priority patent/DE3567314D1/en
Publication of JPS61168831A publication Critical patent/JPS61168831A/en
Publication of JPH0453059B2 publication Critical patent/JPH0453059B2/ja
Granted legal-status Critical Current

Links

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に関し、特に永久磁石を有
する電磁継電器に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electromagnetic relay, and more particularly to an electromagnetic relay having a permanent magnet.

〔従来の技術〕[Conventional technology]

この種の電磁継電器として出願人は先に特願昭
59−210744号記載の構造を提案している。
The applicant had previously filed a patent application for this type of electromagnetic relay.
The structure described in No. 59-210744 is proposed.

この電磁継電器を、第8図を参照して説明する
と、それぞれが第1の端部5aおよび6aと第2
の端部5bおよび6bとを有するコ字形磁極板5
および6が永久磁石7の両磁極に固定されてなる
可動ブロツク4を保時するカード11と、一端部
1aが磁極板端部5aと6aとの間に配置された
鉄心1と、この鉄心1に磁気接続され端部2aお
よび2bがそれぞれ磁極板端部5bおよび6bの
外側に対向配置されたヨーク2と、コイル3が巻
回されたコイルスプール21と、カード11の移
動によつて駆動される接点切換機構を有する絶縁
基体30と、カバー40とから構成される。
This electromagnetic relay will be explained with reference to FIG.
a U-shaped magnetic pole plate 5 having end portions 5b and 6b;
and 6 are fixed to both magnetic poles of a permanent magnet 7, and a card 11 for retaining a movable block 4; an iron core 1 having one end 1a disposed between magnetic pole plate ends 5a and 6a; A yoke 2, which is magnetically connected to the yoke 2 and whose ends 2a and 2b are arranged opposite to the outsides of the magnetic pole plate ends 5b and 6b, respectively, and a coil spool 21 around which a coil 3 is wound, is driven by the movement of the card 11. It is composed of an insulating base 30 having a contact switching mechanism and a cover 40.

永久磁石7と2枚のコ字形磁極板5および6か
ら構成された可能ブロツク4は、カード11の可
動ブロツク保持部12により保持され、カードブ
ロツク10を構成する。カード11の両側後部に
設けたスタツド131を有する可動接点ばね駆動
部13の上端からそれぞれ前方にL字形をなすよ
うガイド溝14が一体形成されている。コイルブ
ロツク20は、コイル3が巻回されたコイルスプ
ール21に下方からヨーク2を組み合わせ、コイ
ルスプール21の挿入孔22より挿入された鉄心
1をヨーク2の嵌合穴2cに打込み組み合わせる
ことにより構成される。つば部23にはガイドピ
ン24が2つ設けられており、それぞれのガイド
ピン24がカードブロツク10のそれぞれのガイ
ド溝14にはめ込まれる。つば部25にはコイル
端子26が設けられている。絶縁基体30は中央
部にコイルブロツク20と嵌合する嵌合溝31を
有し、嵌合溝31の両側には可動接点ばね32の
一端がばね固定端子33に溶接固定され、他端は
自由端となるよう配置されている。可動接点ばね
32の自由端両側面に対向して内側および外側に
固定接点端子34および35が設けられている。
A movable block 4 composed of a permanent magnet 7 and two U-shaped magnetic pole plates 5 and 6 is held by a movable block holding portion 12 of a card 11, and constitutes a card block 10. L-shaped guide grooves 14 are integrally formed forward from the upper ends of the movable contact spring drive parts 13 having studs 131 provided on both rear sides of the card 11. The coil block 20 is constructed by assembling the yoke 2 from below to the coil spool 21 around which the coil 3 is wound, and driving the iron core 1 inserted through the insertion hole 22 of the coil spool 21 into the fitting hole 2c of the yoke 2. be done. Two guide pins 24 are provided on the flange portion 23, and each guide pin 24 is fitted into each guide groove 14 of the card block 10. A coil terminal 26 is provided on the flange portion 25 . The insulating base 30 has a fitting groove 31 in the center for fitting the coil block 20, and on both sides of the fitting groove 31, one end of a movable contact spring 32 is welded and fixed to a spring fixed terminal 33, and the other end is free. It is placed at the end. Fixed contact terminals 34 and 35 are provided on the inner and outer sides of the free end of the movable contact spring 32 so as to face each other.

可動接点ばね32の自由端は、ばね自体の弾性
力によりそれぞれ内側の固定接点端子34に接触
している。絶縁基体30にカバー40を取り付け
ることにより電磁継電器が構成される。詳述する
と、コイルブロツク20は絶縁基体30の嵌合溝
31に嵌合され、コイルスプール21の有するガ
イドピン24にカード11の有するガイド溝14
をはめ込むようカードブロツク10は上方から嵌
合装着される。ガイド溝14の内幅はガイドピン
24の外径よりも大きく、ガイド溝14の深さは
ガイドピン24の高さより小さいので、カードブ
ロツク10はそれぞれのガイド溝14内において
ガイドピン24の頂点で支持されている。このよ
うに、カードブロツク10はガイドピン24の2
点支持により永久磁石8の磁極方向に摺動して平
行移動可能に遊支持される。カードブロツク10
の平行移動により可動接点ばね駆動部の13のス
タツド131が、その両側に配置された可動接点
ばね32を押圧、開放することにより可動接点ば
ね32は固定接点端子34および35と接触、開
離し接点を切換える。
The free ends of the movable contact springs 32 are in contact with the respective inner fixed contact terminals 34 due to the elastic force of the springs themselves. An electromagnetic relay is constructed by attaching the cover 40 to the insulating base 30. Specifically, the coil block 20 is fitted into the fitting groove 31 of the insulating base 30, and the guide pin 24 of the coil spool 21 is fitted into the guide groove 14 of the card 11.
The card block 10 is fitted and mounted from above so as to fit into the card block. The inner width of the guide groove 14 is larger than the outer diameter of the guide pin 24, and the depth of the guide groove 14 is smaller than the height of the guide pin 24, so that the card block 10 is positioned at the top of the guide pin 24 within each guide groove 14. Supported. In this way, the card block 10 has two guide pins 24.
By point support, it is loosely supported so that it can slide and move in parallel in the direction of the magnetic pole of the permanent magnet 8. card block 10
Due to the parallel movement of , the 13 studs 131 of the movable contact spring drive section press and release the movable contact springs 32 arranged on both sides of the movable contact springs 32 , so that the movable contact springs 32 come into contact with the fixed contact terminals 34 and 35 and open the contacts. Switch.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

このような既提案の電磁継電器においては、第
9図に示すように、固定接点36および37をそ
れぞれ有する固定接点端子34および35の間に
可動接38および39を有する1枚の可動接点点
ばね32を配置しているので、可動接点ばね駆動
部13のスタツド131が可動接点ばね32を押
圧して固定接点36と可動接点38が離れた後に
固定接点37と可動接点39が接触するトランス
フア接点は構成できるが、固定接点37と可動接
点39が接触した後に固定接点36と可動接点3
8が離れるコンテイニアス接点は構成できないと
いう問題点があつた。
In such a previously proposed electromagnetic relay, as shown in FIG. 9, one movable contact spring having movable contacts 38 and 39 is placed between fixed contact terminals 34 and 35 having fixed contacts 36 and 37, respectively. Since the stud 131 of the movable contact spring drive unit 13 presses the movable contact spring 32 and the fixed contact 36 and the movable contact 38 are separated, the fixed contact 37 and the movable contact 39 come into contact with each other. However, after the fixed contact 37 and the movable contact 39 come into contact, the fixed contact 36 and the movable contact 3
There was a problem that a continuous contact in which 8 was separated could not be constructed.

また近年、高感度でしかも接点間絶縁耐圧の大
きい小形の電磁継電器が求められているが、対向
する接点間の高耐圧化には接点間隙を大にする必
要があり、可動接点ばねのステフネスを変えない
で接点間隙を大きくするためには、第10図に示
すように△c(接点間隙)≒d(スタツド〓変位
量)−α1(可動接点ばねたわみ量)−α2(可動接点ば
ねあそび量)の関係よりスタツド変位量dを大に
するか、又は可動接点ばねたわみ量α1やあそびα2
を小さくする必要がある。ここで可動接点ばねた
わみ量α1やあそび量α2を小さくすることは電磁継
電器の構造上、製造上の限界があるのでスタツド
変位量dを大とすることに帰着される。一方、第
11A図におよび第11B図に示すスタツド変位
量dと磁気吸引力F(スタツドに加わる力)との
関係より、定格励磁曲線Faと非励磁曲線Fbに挟
まれた面積で表される励磁エネルギーSを一定と
すると、スタツド変位量dが大きくなるほど(d1
>d2)定格励磁曲線Faと非励磁曲線Fbとの間隔
△Fが小となり、ばね負荷曲線(図示せず)が間
隔△F内に納まらなくなつて整合が困難となり、
従つて電磁継電器の感度が下がる。よつて、高感
度で接点間の絶縁耐圧の大きい電磁継電器を得る
ことが困難であるという問題点があつた。
In addition, in recent years, there has been a demand for compact electromagnetic relays with high sensitivity and high dielectric strength between contacts, but in order to increase the withstand voltage between opposing contacts, it is necessary to increase the gap between the contacts, and the stiffness of the movable contact spring has to be increased. In order to increase the contact gap without changing it, as shown in Figure 10, △c (contact gap) ≒ d (stud = displacement) - α 1 (movable contact spring deflection) - α 2 (movable contact spring Either increase the stud displacement amount d, or increase the movable contact spring deflection amount α 1 or the play amount α 2.
needs to be made smaller. Here, reducing the movable contact spring deflection amount α 1 and the play amount α 2 has limitations due to the structure and manufacturing of the electromagnetic relay, so the result is to increase the stud displacement amount d. On the other hand, from the relationship between the stud displacement amount d and the magnetic attraction force F (force applied to the stud) shown in Figures 11A and 11B, the area between the rated excitation curve Fa and the de-excitation curve Fb is expressed as Assuming that the excitation energy S is constant, the larger the stud displacement d (d 1
>d 2 ) The interval △F between the rated excitation curve Fa and the de-excitation curve Fb becomes small, and the spring load curve (not shown) no longer falls within the interval △F, making it difficult to match.
Therefore, the sensitivity of the electromagnetic relay decreases. Therefore, there has been a problem that it is difficult to obtain an electromagnetic relay with high sensitivity and high dielectric strength between the contacts.

〔問題点を解決するための手段〕[Means for solving problems]

本発明の電磁継電器は、それぞれが2つの端部
を有するコ字形の2枚の磁極板を永久磁石の両磁
極に1枚づつ固定してなる可動ブロツクと;前記
可動ブロツクの2枚の磁極板により形成される2
組の端部の一方の組の端部間に自己の一端部を挿
入配置した鉄心と;該鉄心に磁気接続し、前記可
動ブロツクの2枚の磁極板により形成される2組
の端部のうちの他方の組の少なくとも1つの端部
の外側に自己の端部を配置したヨークと;内部に
前記鉄心を貫通させる孔と、前記可動ブロツクが
前記永久磁石の着磁方向に平行移動するように遊
支持するガイドを有し、周囲にコイル3を巻回し
たスプールと;前記可動ブロツクの近傍に配置し
た複数の固定接点端子と;該複数の固定接点端子
間に配設した複数の可動接点ばねと;該複数の可
動接点ばねの両側および中間に配置し前記可動接
点ばねを駆動する可動接点ばね駆動部と、前記可
動ブロツクを保持する可動ブロツク保持部とを有
するカードと;を備え、かつ前記中間に配置され
た前記駆動部は前記、可動接点ばねの一方を駆動
するが、他方には全く接触しない構成を有するこ
とを特徴とする。
The electromagnetic relay of the present invention includes a movable block formed by fixing two U-shaped magnetic pole plates, each having two ends, to both magnetic poles of a permanent magnet; two magnetic pole plates of the movable block; 2 formed by
an iron core with one end of itself inserted between the ends of one of the sets of ends; magnetically connected to the iron core, and two sets of ends formed by the two magnetic pole plates of the movable block; a yoke with its own end disposed outside at least one end of the other set; a hole through which the iron core is penetrated; and a yoke so that the movable block moves parallel to the magnetization direction of the permanent magnet. a spool having a loosely supported guide and around which a coil 3 is wound; a plurality of fixed contact terminals disposed near the movable block; and a plurality of movable contacts disposed between the plurality of fixed contact terminals. a card having: a spring; a movable contact spring driving section disposed on both sides and in the middle of the plurality of movable contact springs and driving the movable contact spring; and a movable block holding section holding the movable block; The drive unit disposed in the middle drives one of the movable contact springs, but does not come into contact with the other at all.

〔実施例〕〔Example〕

次に、本発明について図面を参照して説明す
る。
Next, the present invention will be explained with reference to the drawings.

第1A図および第1B図を参照すると、本発明
の第一の実施例は、それぞれが第1の端部5aお
よび6aと第2の端部5bおよび6bとを有する
コ字形磁極板5および6が永久磁石7の両磁極に
固定されてなる可動ブロツク4と、この可動ブロ
ツク4を保持するカード51と、一端部1aを磁
極板端部5aと6aとの間に配置した鉄心1と、
この鉄心1に磁気接続し端部2aおよび2bをそ
れぞれ磁極板端部5bおよび6bの外側に対向配
置したヨーク2と、コイル3を巻回しカード51
をガイドするコイルスプール21と、カード51
の移動によつて駆動される可動接点ばね62,6
3,68,69を有する絶縁基体60と、この絶
縁基体60に被せられるカバー40とから構成さ
れる。
Referring to FIGS. 1A and 1B, a first embodiment of the invention includes U-shaped pole plates 5 and 6, each having a first end 5a and 6a and a second end 5b and 6b. is fixed to both magnetic poles of a permanent magnet 7, a card 51 that holds the movable block 4, an iron core 1 with one end 1a disposed between magnetic pole plate ends 5a and 6a,
A yoke 2 is magnetically connected to the iron core 1 and its ends 2a and 2b are arranged opposite to the outsides of magnetic pole plate ends 5b and 6b, respectively, and a card 51 is wound around a coil 3.
Coil spool 21 that guides the card 51
Movable contact springs 62, 6 driven by the movement of
3, 68, and 69, and a cover 40 that covers this insulating base 60.

永久磁石7と2枚のコ字形磁極板5および6か
ら構成された可動ブロツク4は、カード51に保
持されてカードブロツク50を構成する。カード
51は、左右に1本づつのガイド突起53と左右
に3本づつのスタツド521,522,523を
備えた可動接点ばね駆動部52を有している。
(詳細は後述する。)コイルスプール21は、ガイ
ド27が設けられた鍔部23と、コイル3を引き
出すコイル端子26が設けられた鍔部25と、鉄
心1を嵌装する孔22とを有している。コイルス
プール21に下方からヨーク2を組み合わせ、孔
20から挿入した鉄心1をヨーク2の嵌合穴2c
に打込み組み合わせることによりコイルブロツク
20が構成される。絶縁基体60は、コイルブロ
ツク20が嵌合する嵌合凹部61と、この嵌合凹
部61の両外側に配置した固定接点端子66およ
び72と、この固定接点端子66および72の両
側外に配置した固定接点端子67および73と、
この固定接点端子66と67との間および72と
73との間にそれぞれの一端を配置しそれぞれの
他端を中立端子64,65,70,71に固定し
た可動接点ばね62,63,68,69を有して
いる。
A movable block 4 composed of a permanent magnet 7 and two U-shaped magnetic pole plates 5 and 6 is held by a card 51 to constitute a card block 50. The card 51 has a movable contact spring drive section 52 with one guide protrusion 53 on the left and right sides and three studs 521, 522, 523 on the left and right sides.
(Details will be described later.) The coil spool 21 has a flange 23 provided with a guide 27, a flange 25 provided with a coil terminal 26 for pulling out the coil 3, and a hole 22 into which the iron core 1 is fitted. are doing. Assemble the yoke 2 to the coil spool 21 from below, and insert the iron core 1 inserted through the hole 20 into the fitting hole 2c of the yoke 2.
The coil block 20 is constructed by combining the two. The insulating base 60 includes a fitting recess 61 into which the coil block 20 is fitted, fixed contact terminals 66 and 72 arranged on both sides of the fitting recess 61, and fixed contact terminals 66 and 72 arranged outside both sides of the fixed contact terminals 66 and 72. fixed contact terminals 67 and 73;
Movable contact springs 62, 63, 68, each having one end disposed between the fixed contact terminals 66 and 67 and between 72 and 73, and each other end fixed to the neutral terminals 64, 65, 70, 71, It has 69.

コイルスプール21の下部に有する複数の突起
の29を、嵌合凹部61内の穴(図示されていな
い)にはめこむことによりコイルブロツク20を
絶縁基体60に嵌合し、カード51のガイド突起
53がコイルスプール21のガイド27により形
成されたガイド溝部28に係合するようにカード
ブロツク50を上方から組み合わせる。可動ブロ
ツク4の磁極板端部5aと6aは鉄心端部1aの
両側面に対向し、磁極板端部5bおよび6bはそ
れぞれヨーク端部2aおよび2bの内側に対向し
て配置される。このようにカードブロツク50は
ガイド27により永久磁石7の磁極方向に摺動し
て平行移動可能なように遊支持される。絶縁基体
60にカバー40を被せて電磁継電器が構成され
る。
The coil block 20 is fitted to the insulating base 60 by fitting the plurality of protrusions 29 provided at the lower part of the coil spool 21 into holes (not shown) in the fitting recess 61, and the guide protrusions 53 of the card 51 are fitted. The card block 50 is assembled from above so that it engages with the guide groove 28 formed by the guide 27 of the coil spool 21. The magnetic pole plate ends 5a and 6a of the movable block 4 are arranged opposite to both side surfaces of the iron core end 1a, and the magnetic pole plate ends 5b and 6b are arranged to face inside the yoke ends 2a and 2b, respectively. In this way, the card block 50 is loosely supported by the guide 27 so that it can slide in the direction of the magnetic pole of the permanent magnet 7 and move in parallel. An electromagnetic relay is constructed by covering the insulating base 60 with the cover 40.

(第1B図)永久磁石7の磁束により磁極板端
部5a,5b,6a,6bに発生する磁極と、巻
線3の通電により鉄心端部1aおよびヨーク端部
2a,2bに励磁される磁極との吸引、反発によ
りカードブロツク50は永久磁石7の磁極方向に
平行移動し、可動接点ばね駆動部52が接点を切
換える。
(Fig. 1B) Magnetic poles generated at the magnetic pole plate ends 5a, 5b, 6a, 6b by the magnetic flux of the permanent magnet 7, and magnetic poles excited at the iron core end 1a and yoke ends 2a, 2b by energization of the winding 3. The card block 50 moves in parallel in the direction of the magnetic pole of the permanent magnet 7 due to the attraction and repulsion from the permanent magnet 7, and the movable contact spring driving section 52 switches the contact.

第2A図および第2B図を参照して、カードの
一例について説明する。これらの図に示すように
カード51は可動ブロツク4を保持する可動ブロ
ツク保持部54の両側部にそれぞれ内スタツド5
21、中スタツド522、外スタツド523を有
している。内スタツド521と中スタツド522
との間に可動接点ばね62,68が配置され、中
スタツド522と外スタツド523との間に可動
接点ばね63,69が配置される。
An example of the card will be described with reference to FIGS. 2A and 2B. As shown in these figures, the card 51 has inner studs 5 on both sides of a movable block holding section 54 that holds the movable block 4.
21, an inner stud 522, and an outer stud 523. Inner stud 521 and middle stud 522
Movable contact springs 62, 68 are arranged between the inner stud 522 and outer stud 523, and movable contact springs 63, 69 are arranged between the inner stud 522 and the outer stud 523.

次に第3A図〜第5C図を参照して接点切換機
構の第1構成例について説明する。
Next, a first configuration example of the contact switching mechanism will be described with reference to FIGS. 3A to 5C.

第3A図〜第3C図に第1の実施例であるトラ
ンスフア接点構成を示す。可動接点ばね68は、
一端を中立端子70に固定され、他端に固定接点
端子72の固定接点721に対向する可動接点6
81を有している。可動接点ばね69は、一端を
中立端子71に固定され、他端に固定接点端子7
3の固定接点731に対向する可動接点691を
有している。中立端子70および71は絶縁基体
60の内部で一体化されており、1本の端子とし
て外部に引き出されている。可動接点ばね68は
予備圧力により固定接点端子72側に押しつけら
れている。可動接点ばね69は予備圧力を有しな
い。カード51の内スタツド521が可動接点ば
ね68を押圧して可動接点68と固定接点721
が離され、かつ中スタツド522が可動接点ばね
69を押圧して可動接点691と固定接点731
が接触した状態(第3A図)から、カード51が
矢印方向へ移動すると中スタツド522が可動接
点ばね69の押圧を開放しかわりに外スタツド5
23が可動接点ばね69を押圧して可動接点69
1と固定接点731が離され(第3B図)、次に
内スタツド521が可動接点ばね68の押圧を開
放して可動接点ばね68は予備圧力により固定接
点端子72側に押しつけられ、可動接点681と
固定接点721が接触する(第3C図)。以上の
ように可動接点691の開放後に可能接点681
が閉成するトランスフア接点が構成される。
FIGS. 3A to 3C show a transfer contact structure according to a first embodiment. The movable contact spring 68 is
A movable contact 6 whose one end is fixed to the neutral terminal 70 and whose other end faces the fixed contact 721 of the fixed contact terminal 72
81. The movable contact spring 69 has one end fixed to the neutral terminal 71 and the other end fixed to the fixed contact terminal 7.
It has a movable contact 691 facing the fixed contact 731 of No. 3. The neutral terminals 70 and 71 are integrated inside the insulating base 60 and are drawn out as one terminal. The movable contact spring 68 is pressed against the fixed contact terminal 72 by preliminary pressure. The movable contact spring 69 has no prestress. The inner stud 521 of the card 51 presses the movable contact spring 68 to connect the movable contact 68 and the fixed contact 721.
is released, and the middle stud 522 presses the movable contact spring 69 to disconnect the movable contact 691 and the fixed contact 731.
When the card 51 moves in the direction of the arrow from the state in which the contacts are in contact (FIG. 3A), the inner stud 522 releases the pressure of the movable contact spring 69 and instead moves the outer stud 5.
23 presses the movable contact spring 69 and the movable contact 69
1 and the fixed contact 731 are separated (FIG. 3B), then the inner stud 521 releases the pressure on the movable contact spring 68, and the movable contact spring 68 is pressed against the fixed contact terminal 72 side by preliminary pressure, and the movable contact 681 and the fixed contact 721 comes into contact with each other (FIG. 3C). As described above, after the movable contact 691 is opened, the possible contact 681
A transfer contact is formed that closes.

第6図より明らかなように同実施例における接
点間隙△cは、スタツド変位量d、可動接点ばね
あそび量α2、可動接点ばねはねあかり量α3より△
c≒d−α2+α3となり、第10図に示す従来の接
点開閉機構に比較してスタツド変位量dが同じで
も可動接点ばねたわみ量α1+可動接点ばねはねあ
がり量α3だけ接点間隙を大きくでき、したがつて
感度を下げずに従来より接点間耐圧の大きい電磁
継電器を実現できる。
As is clear from FIG. 6, the contact gap △c in the same embodiment is determined by the stud displacement amount d, the movable contact spring play amount α 2 , and the movable contact spring spring amount α 3
c≒d−α 23 , and compared to the conventional contact opening/closing mechanism shown in Fig. 10, even if the stud displacement amount d is the same, the contact will be reduced by the amount of deflection of the movable contact spring α 1 + the amount of springing of the movable contact spring α 3 The gap can be made larger, and therefore an electromagnetic relay with higher contact voltage resistance than the conventional one can be realized without lowering the sensitivity.

第7図に、この電磁継電器におけるスタツド変
位量と磁気吸引力およびばね負荷力との関係を示
す。横軸はスタツド変位量d、縦軸はスタツドに
かかる力Fを示している。破線Faは定格励磁曲
線、実線Fbは非励磁曲線をそれぞれ示し、実線
Fcはばね負荷力を示している。また、一転鎖線
Fdはスタツドを動かして接点を切換えるのに最
低限必要な磁気吸引力を表わす感動励磁曲線であ
る。
FIG. 7 shows the relationship between stud displacement, magnetic attraction force, and spring load force in this electromagnetic relay. The horizontal axis shows the stud displacement amount d, and the vertical axis shows the force F applied to the stud. The broken line Fa indicates the rated excitation curve, and the solid line Fb indicates the de-excitation curve.
Fc indicates spring load force. Also, the dashed line
Fd is an exciting excitation curve that represents the minimum magnetic attraction force required to move the stud and switch the contacts.

第4A図〜第4C図に第2の構成例であるコン
テイニアス接点構成を示す。第3A図〜第3C図
に示す第1の実施例と異なるのは、可動接点ばね
68および69の両方に予備圧力を与え、内スタ
ツド521と外スタツド523との間隔を広げた
点である。内スタツド521が可動接点ばね68
を押圧して可動接点681と固定接点721が離
れ、かつ中スタツド522が可動接点ばね69を
押圧して可動接点691と固定接点731が接触
した状態(第4A図)から、カード51が矢印方
向へ平行移動すると、内スタツド521および中
スタツド522がそれぞれ可動接点ばね68およ
び69の押圧を開放しそれぞれに与えられた予備
圧力により可動接点681と固定接点721とが
接触しかつ可動接点691と固定接点731とは
接触を続け(第4B図)、次に外スタツド523
が可動接点ばね69を押圧して可動接点691と
固定接点731が離される(第4C図)。以上の
ように可動接点681の閉成後に可動接点691
が開放するコンテイニアス接点が構成される。
FIGS. 4A to 4C show a continuous contact configuration, which is a second configuration example. The difference from the first embodiment shown in FIGS. 3A to 3C is that both movable contact springs 68 and 69 are preloaded and the distance between inner stud 521 and outer stud 523 is increased. The inner stud 521 is the movable contact spring 68
From the state in which the movable contact 681 and the fixed contact 721 are separated by pressing , and the middle stud 522 presses the movable contact spring 69 and the movable contact 691 and the fixed contact 731 are in contact (FIG. 4A), the card 51 is moved in the direction of the arrow. When the inner stud 521 and the middle stud 522 release the pressure on the movable contact springs 68 and 69, respectively, the movable contact 681 and the fixed contact 721 come into contact with each other due to the pre-pressure applied to each spring, and the movable contact 691 and the fixed contact are fixed. Contact 731 remains in contact (FIG. 4B) and then outer stud 523
presses the movable contact spring 69, and the movable contact 691 and the fixed contact 731 are separated (FIG. 4C). As described above, after the movable contact 681 is closed, the movable contact 691
A continuous contact is constructed that opens.

第5A図〜第5C図にコンテイニアス接点構成
の他の参考例を示す。この例においては第4A図
〜第4C図に示す第2の実施例に比べて、中スタ
ツド522が可動接点ばね68も押圧するように
なつている点で異なり、接点ギヤツプ(△C)
が、小さくならざるを得ず、接点間耐圧は劣る。
Other reference examples of continuous contact configurations are shown in FIGS. 5A to 5C. This example differs from the second embodiment shown in FIGS. 4A to 4C in that the middle stud 522 also presses the movable contact spring 68, and the contact gap (△C)
However, it has to be small, and the withstand voltage between the contacts is inferior.

なお、以上の説明は可動接点ばね62,63に
ついても同様である。可動接点ばね62,63,
68,69に与える予備圧力はこれらのそれぞれ
が独立に固定されている中立端子64,65,7
0,71を個別に捩ることにより調節可能であ
る。
Note that the above description also applies to the movable contact springs 62 and 63. Movable contact springs 62, 63,
The preliminary pressure applied to 68, 69 is applied to neutral terminals 64, 65, 7, which are each fixed independently.
It can be adjusted by twisting 0 and 71 individually.

また、第一の実施例では、コイルブロツク20
のヨーク2は二又に分岐した端部2aおよび2b
を有し、コイル3の通電により接点を切換えたカ
ードブロツク50が永久磁石7の磁束により、そ
の切換状態を自己保持する自己保持型の電磁継電
器を示したが、一方のヨーク端部例えば端部2b
を削除して磁気回路の平衡を崩しコイル3非通電
時のカードブロツク50をヨーク端部2a側に吸
引させておきコイル3通電により切換状態を保持
する電流保持型の電磁継電器であつてもよい。
Further, in the first embodiment, the coil block 20
The yoke 2 has bifurcated ends 2a and 2b.
A self-holding type electromagnetic relay has been shown in which the card block 50, which switches the contacts by energizing the coil 3, maintains its switching state by the magnetic flux of the permanent magnet 7. 2b
It may be a current holding type electromagnetic relay in which the card block 50 is attracted to the yoke end 2a side when the coil 3 is not energized by deleting the balance of the magnetic circuit, and the switching state is maintained by energizing the coil 3. .

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明によると固定接点間
に配設した2枚1組の可動接点ばねを、この可動
接点ばねの一方の両側にそれぞれ押圧用及び引き
はがし用として、他方の片側にひきはがし用とし
て動作する駆動部を有し、スリム化差動形磁気回
路を用いて平行移動するカードブロツクで切換駆
動することにより容易にコンテイニアス接点構成
を可能とし、小形、高感度で接点間耐圧の高い電
磁継電器が得られる。
As explained above, according to the present invention, a set of two movable contact springs arranged between fixed contacts are used for pressing and peeling on one side of the movable contact spring, and for peeling on the other side. It has a drive unit that operates as a multi-purpose device, and uses a slim differential magnetic circuit to switch and drive a card block that moves in parallel, making it possible to easily configure continuous contacts.It is small, highly sensitive, and has high withstand voltage between contacts. An electromagnetic relay is obtained.

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

第1A図および1B図はそれぞれ本発明の一実
施例を示す分解斜視図および一部断面斜視図、第
2A図および第2B図はカードの一例を示す斜視
図および平面図、第3図、第4図および第5図は
それぞれ接点切換機構の第1、第2および第3の
例を示す一部断面平面図、第6図は接点切換機構
の特性を表わす平面図、第7図はスタツド変位と
磁気吸引力およびばね負荷力との特性図、第8図
は従来の電気継電器を示す斜視図、第9図は従来
の接点切換機構を示す平面図、第10図は従来の
接点切換機構の特性を表わす平面図、第11図は
従来のスタツド変位と磁気吸引力との特性図であ
る。 1……鉄心、1a……鉄心端部、2……ヨー
ク、2a,2b……ヨーク端部、2c……嵌合
穴、3……コイル、4……可動ブロツク、5,6
……磁極板、5a,5b,6a,6b……磁極板
端部、7……永久磁石、20……コイルブロツ
ク、21……コイルスプール、22……孔、2
3,25……鍔部、26……コイル端子、27…
…ガイド、28……ガイド溝部、50……カード
ブロツク、51……カード、52……可動接点ば
ね駆動部、53……ガイド突起、521……内ス
タツド、522……中スタツド、523……外ス
タツド、60……絶縁基体、61……嵌合凹部、
62,63,68,69……可動接点ばね、6
4,65,70,71……中立端子、66,6
7,72,73……固定接点端子、681,69
1……可動接点、721,731……固定接点。
1A and 1B are an exploded perspective view and a partially sectional perspective view showing an embodiment of the present invention, FIGS. 2A and 2B are a perspective view and a plan view showing an example of a card, and FIGS. 4 and 5 are partial cross-sectional plan views showing the first, second, and third examples of the contact switching mechanism, respectively, FIG. 6 is a plan view showing the characteristics of the contact switching mechanism, and FIG. 7 is a stud displacement diagram. Figure 8 is a perspective view of a conventional electric relay, Figure 9 is a plan view of a conventional contact switching mechanism, and Figure 10 is a diagram of a conventional contact switching mechanism. FIG. 11, a plan view showing the characteristics, is a characteristic diagram of the conventional stud displacement and magnetic attraction force. 1... Iron core, 1a... Iron core end, 2... Yoke, 2a, 2b... Yoke end, 2c... Fitting hole, 3... Coil, 4... Movable block, 5, 6
...Magnetic pole plate, 5a, 5b, 6a, 6b...Magnetic pole plate end, 7...Permanent magnet, 20...Coil block, 21...Coil spool, 22...Hole, 2
3, 25...flange, 26...coil terminal, 27...
... Guide, 28 ... Guide groove, 50 ... Card block, 51 ... Card, 52 ... Movable contact spring drive section, 53 ... Guide protrusion, 521 ... Inner stud, 522 ... Middle stud, 523 ... Outer stud, 60... Insulating base, 61... Fitting recess,
62, 63, 68, 69...Movable contact spring, 6
4, 65, 70, 71...neutral terminal, 66, 6
7, 72, 73...Fixed contact terminal, 681, 69
1...Movable contact, 721, 731...Fixed contact.

Claims (1)

【特許請求の範囲】 1 それぞれが2つの端部を有するコ字形の2枚
の磁極板を永久磁石の両極に1枚づつ固定してな
る可動ブロツクと; 前記可動ブロツクの2枚の磁極板により形成さ
れる2組の端部の一方の組の端部間に自己の一端
部を挿入配置した鉄心と; 該鉄心に磁気接続し、前記可動ブロツクの2枚
の磁極板により形成される2組の端部のうちの他
方の組の少くとも1つの端部の外側に自己の端部
を配置したヨークと; 内部に前記鉄心を貫通させる孔と、前記可動ブ
ロツクが前記永久磁石の着磁方向に平行移動する
ように遊支持するガイドとを有し、周囲にコイル
を巻回したコイルスプールと; 前記可動ブロツクの近傍に配置した複数の固定
接点端子と; 該複数の固定接点端子間に配設した複数の可動
接点ばねと; 該複数の可動接点ばねの両側および中間に配置
し、前記可動接点ばねを駆動する可動接点ばね駆
動部と、前記可動ブロツクを保持する可動ブロツ
ク保持部とを有するカードと; を備え、かつ、前記中間に配置された前記駆動部
は前記可動接点ばねの一方を駆動するが他方には
全く接触しない構成を有することを特徴とする電
磁継電器。
[Scope of Claims] 1. A movable block formed by fixing two U-shaped magnetic pole plates, each having two ends, to both poles of a permanent magnet; By the two magnetic pole plates of the movable block; an iron core with one end of itself inserted between the ends of one of the two sets of end parts to be formed; and two sets magnetically connected to the iron core and formed by the two magnetic pole plates of the movable block. a yoke with its own end disposed outside at least one end of the other set of end parts; a hole through which the iron core passes through the yoke; a coil spool having a guide loosely supported so as to move in parallel to the movable block; a coil spool around which a coil is wound; a plurality of fixed contact terminals disposed near the movable block; a coil spool disposed between the plurality of fixed contact terminals; a plurality of movable contact springs provided; a movable contact spring driving section disposed on both sides and in the middle of the plurality of movable contact springs to drive the movable contact springs; and a movable block holding section holding the movable block. An electromagnetic relay comprising: a card; and wherein the drive section disposed in the middle drives one of the movable contact springs but does not come into contact with the other at all.
JP861485A 1984-07-20 1985-01-21 Electromagnetic relay Granted JPS61168831A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP861485A JPS61168831A (en) 1985-01-21 1985-01-21 Electromagnetic relay
US06/756,358 US4614927A (en) 1984-07-20 1985-07-18 Polarized electromagnetic relay
CA000487106A CA1241362A (en) 1984-07-20 1985-07-19 Polarized electromagnetic relay
EP85305154A EP0169714B1 (en) 1984-07-20 1985-07-19 Polarized electromagnetic relay
DE8585305154T DE3567314D1 (en) 1984-07-20 1985-07-19 Polarized electromagnetic relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP861485A JPS61168831A (en) 1985-01-21 1985-01-21 Electromagnetic relay

Publications (2)

Publication Number Publication Date
JPS61168831A JPS61168831A (en) 1986-07-30
JPH0453059B2 true JPH0453059B2 (en) 1992-08-25

Family

ID=11697825

Family Applications (1)

Application Number Title Priority Date Filing Date
JP861485A Granted JPS61168831A (en) 1984-07-20 1985-01-21 Electromagnetic relay

Country Status (1)

Country Link
JP (1) JPS61168831A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6386330A (en) * 1986-09-30 1988-04-16 アンリツ株式会社 Electromagnetic relay

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56159030A (en) * 1980-05-13 1981-12-08 Matsushita Electric Works Ltd Electromagnetic relay
JPS5914234A (en) * 1982-07-16 1984-01-25 株式会社フジソク Self-holding type relay

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56159030A (en) * 1980-05-13 1981-12-08 Matsushita Electric Works Ltd Electromagnetic relay
JPS5914234A (en) * 1982-07-16 1984-01-25 株式会社フジソク Self-holding type relay

Also Published As

Publication number Publication date
JPS61168831A (en) 1986-07-30

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