JPH0338691B2 - - Google Patents
Info
- Publication number
- JPH0338691B2 JPH0338691B2 JP62274812A JP27481287A JPH0338691B2 JP H0338691 B2 JPH0338691 B2 JP H0338691B2 JP 62274812 A JP62274812 A JP 62274812A JP 27481287 A JP27481287 A JP 27481287A JP H0338691 B2 JPH0338691 B2 JP H0338691B2
- Authority
- JP
- Japan
- Prior art keywords
- latch
- hanger
- closing
- tripping
- opening
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 13
- 230000000694 effects Effects 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 1
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はラツチ機構により機械的に電磁接触
器の保持を行なうラツチ付電磁接触器に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electromagnetic contactor with a latch that mechanically holds the electromagnetic contactor using a latch mechanism.
〔従来の技術〕
投入コイルの励磁により投入され、投入後はラ
ツチ機構により上記投入を保持するラツチ付電磁
接触器としては、例えば実公昭56−22598号公報
に示されたものが知られている。[Prior Art] As an electromagnetic contactor with a latch, which is closed by excitation of a closing coil and which is held in the closed state by a latch mechanism after closing, the one shown in Japanese Utility Model Publication No. 56-22598 is known, for example. .
第５図は上記実公昭56−22598号公報に示され
た従来のラツチ付電磁接触器の縦断面図であり、
電磁接触器がラツチされた状態を示す。図におい
て３０３は投入コイル、３０４は可動片、３０４
ａは操作片、３０５は投入ばね、３０６は可動接
触子支え、３０８は上記投入コイル３０３の消磁
用開閉機構を構成するスイツチ接点、３１０は電
磁接触器フレームの底部より突きでた上記可動接
触子支え３０６の先端に取付けられた施錠板３１
３は可動接触子、３１４は固定接触子、３１５は
引きはずしコイル、３１６は引きはずし鉄心であ
り、この引きはずしコイル３１５、引きはずし鉄
心３１６および上記投入ばね３０５により、ラツ
チ引きはずし用の電磁石手段を構成する。 FIG. 5 is a longitudinal sectional view of a conventional magnetic contactor with a latch shown in the above-mentioned Japanese Utility Model Publication No. 56-22598.
Shows the state in which the magnetic contactor is latched. In the figure, 303 is a closing coil, 304 is a movable piece, 304
305 is an operating piece, 305 is a closing spring, 306 is a movable contact support, 308 is a switch contact constituting the degaussing opening/closing mechanism for the closing coil 303, and 310 is the movable contact protruding from the bottom of the electromagnetic contactor frame. Lock plate 31 attached to the tip of support 306
3 is a movable contact, 314 is a fixed contact, 315 is a trip coil, and 316 is a trip core, and the trip coil 315, trip core 316, and closing spring 305 create an electromagnetic means for tripping the latch. Configure.
このような構造において、投入コイル３０３の
励磁により可動接触子支え３０６が下方へ移動
し、可動接触子３１３と固定接触子３１４が接触
すると共に、投入ばね３０５に付勢されている可
動片３０４が施錠板３１０と係合してラツチを完
了する。そして同時に操作片３０４ａによつて接
点３０８が開路され、上記投入コイル３０３は消
磁される。次に引きはずしコイル３１５を励磁す
ると引きはずし鉄心３１６が動作して上記可動片
３０４を施錠板３１０より引き抜いてラツチを解
く。 In such a structure, the movable contact support 306 moves downward by the excitation of the closing coil 303, the movable contact 313 and the fixed contact 314 come into contact, and the movable piece 304, which is biased by the closing spring 305, moves downward. Engagement with locking plate 310 completes the latching. At the same time, the contact 308 is opened by the operating piece 304a, and the closing coil 303 is demagnetized. Next, when the tripping coil 315 is energized, the tripping core 316 operates to pull out the movable piece 304 from the locking plate 310 and release the latch.
引きはずし鉄心３１６に可動片３０４と操作片
３０４ａを直結して可動接触子支え３０６をラツ
チし、かつ、投入コイル３０３の消磁用開閉機構
を操作するように構成された従来のラツチ付電磁
接触器においては、ラツチ引きはずし用の電磁石
手段の有効ストロークを、このラツチ引きはずし
に必要なストロークよりも大きな上記開閉機構の
操作に必要なストロークに合せて設定しなければ
ならず、比較的大容量の電磁石手段を必要とする
などの問題点があつた。
A conventional electromagnetic contactor with a latch configured to directly connect a movable piece 304 and an operating piece 304a to a trip core 316 to latch a movable contact support 306 and operate a degaussing opening/closing mechanism of a closing coil 303. In this case, the effective stroke of the electromagnetic means for latch tripping must be set to match the stroke required to operate the opening/closing mechanism, which is larger than the stroke required for latch tripping. There were problems such as the need for electromagnetic means.
この発明は上記のような問題点を解消するため
になされたもので、電磁石手段の比較的小さなス
トロークで投入コイル消磁用開閉機構を操作でき
るラツチ付電磁接触器を得ることを目的とする。 The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an electromagnetic contactor with a latch that can operate an opening/closing mechanism for demagnetizing the closing coil with a relatively small stroke of the electromagnetic means.
この発明に係るラツチ付電磁接触器は、主回路
電磁石を励磁してラツチ機構により主回路接点を
閉成状態にラツチして開閉機構により前記主回路
電磁石を消磁させると共に引きはずし電磁石によ
りラツチを外して主回路接点を開放するラツチ付
電磁接触器において、前記ラツチ機構を前記主回
路電磁石の駆動方向に移動してフツク部を設けた
ラツチ受けと、一端が回動可能に枢着され可動端
側が前記引きはずし電磁石に連結されてバネ圧に
より前記フツク部に係合する掛け具とから構成
し、該掛け具に中央部を回動可能に連結しこの掛
け具の回動支点側の端部を前記開閉機構の開閉操
作体に係接すると共に他端部をピボツト動作する
支点とした作動体を設けたものである。
The electromagnetic contactor with a latch according to the present invention excites a main circuit electromagnet, latches the main circuit contacts in a closed state by a latch mechanism, demagnetizes the main circuit electromagnet by an opening/closing mechanism, and releases the latch by a tripping electromagnet. In an electromagnetic contactor with a latch that opens a main circuit contact by moving the latch mechanism in the driving direction of the main circuit electromagnet, the latch mechanism is moved in the driving direction of the main circuit electromagnet, and the latch receiver is provided with a hook portion, and one end is rotatably pivoted and the movable end side is provided with a hook portion. a hanger connected to the tripping electromagnet and engaged with the hook part by spring pressure, a central portion of which is rotatably connected to the hanger, and an end portion of the hanger on the rotation fulcrum side. An operating body is provided which engages the opening/closing operation body of the opening/closing mechanism and uses the other end as a fulcrum for pivoting operation.
掛け具は付勢されて回動し、ラツチ受けのフツ
ク部へ係合してラツチされ、作動体は掛け具に軸
承された位置を作用点に、一端のピボツト動作す
る支点を中心に上記掛け具の回動に応じて回動し
この作動体のもう一方の端における開閉機構の開
閉操作体との係接点では、上記掛け具のフツク部
との係合箇所における移動に必要なストロークが
上記開閉機構の開閉操作に必要なストロークに拡
大して与えられる。
The hanger is energized and rotates, engages with the hook part of the latch receiver, and is latched. At the point of engagement with the opening/closing operating body of the opening/closing mechanism at the other end of the operating body, which rotates in accordance with the rotation of the tool, the stroke required for movement at the engagement point with the hook portion of the above-mentioned hanger is as described above. It is given by expanding the stroke required for the opening/closing operation of the opening/closing mechanism.
以下、この発明の実施例を第１図〜第４図によ
り説明する。第１図において、１は可動接触子、
１ａ，１ｂは固定接触子、２は可動接触子１を保
持するクロスバー、３はクロスバー２に可動鉄心
ピン４を介して固定される可動鉄心、５は中間部
に可動鉄心ピン４が貫通する穴を設けた一対のレ
バーで、可動鉄心３の積層方向における両側にて
上記可動鉄心ピンに軸支されるように設けられる
と共に、その一端部に連結体６がねじ７により回
動可能に枢着されており、この連結体６は本体の
ベース８に支持される軸９により回転自在に保持
されている。又、１０はレバー５の他端部にねじ
１１により回転自在に取付けられたラツチ受け
で、このラツチ受け１０には後述の掛け具１８と
係合するフツク部５８が設けられており、このフ
ツク部５８はその両側面にガイドを構成するラツ
チベース１２に設けられた溝１３と摺動自在な突
起（図示せず）が設けられている。ラツチベース
１２はラツチ取付板１４にねじ１５で固定され、
ラツチ取付板１４はねじ（図示せず）でレール板
１６に固定され、更に、レール板１６は第２図に
示すねじ１７によりベース８に固定されているた
め、結局、ラツチベース１２はベース８に固定さ
れることになる。１８はラツチベース１２に軸１
９により回転自在に取付けられた掛け具、２０は
掛け具に設けられた溝、２１は上記溝２０にその
軸部２２が挿入される引きはずし可動鉄心、２３
は引きはずし可動鉄心２１を内挿する柱状穴を有
し、この可動鉄心を駆動する引きはずしコイル、
２４は引きはずしコイル２３の外側に上記柱状穴
の片側を塞ぐように設けられる継鉄板、２５はば
ねで、継鉄板２４と引きはずし鉄心２１間に設け
られ、引きはずし鉄心２１を上記掛け具１８側に
付勢するものである。なお、ラツチ取付板１４、
引きはずし鉄心２１、継鉄板２４の間に磁路を形
成している。上記引きはずし鉄心２１、引きはず
しコイル２２、ばね２５等でラツチ引きはずし用
電磁石手段の主要部を構成し、この電磁石手段
と、上記ラツチ受け１０、ラツチベース１２、掛
け具１８等でラツチおよびその引きはずし機構の
主要部を構成している。２６は可動鉄心３と対向
する固体鉄心、２７はコイルケース２８に収納さ
れ、固定鉄心２６に巻装された投入コイルで、固
定鉄心２６とコイルケース２８と共に、レール板
１６に固定されている。２９は投入コイル２７の
励磁電流をしや断する開閉機構を構成する自己消
磁スイツチ、３０は自己消磁スイツチ２９を開閉
する作動体を構成する作動板で、一端はラツチベ
ース１２に形成された溝３１に挿入されてピボツ
ト動作をする支点とされ、他端は自己消磁スイツ
チ２９の開閉操作体である補助クロスバー３２に
当接されている。そして、その中央折曲部３３に
設けた穴３４に掛け具１８に連結する軸３５が挿
入され、これにより作動板３０はラツチベース１
２に対して回転自在に保持されている。なお、第
２図において、８ａはクロスバー２の摺動溝であ
る。
Embodiments of the present invention will be described below with reference to FIGS. 1 to 4. In FIG. 1, 1 is a movable contact;
1a and 1b are fixed contacts, 2 is a cross bar that holds the movable contact 1, 3 is a movable core that is fixed to the cross bar 2 via a movable core pin 4, and 5 is a movable core pin 4 that passes through the intermediate portion. A pair of levers with holes provided therein are provided so as to be pivotally supported by the movable core pins on both sides in the stacking direction of the movable core 3, and a connecting body 6 is rotatably attached to one end thereof by a screw 7. The connecting body 6 is rotatably held by a shaft 9 supported by a base 8 of the main body. Reference numeral 10 denotes a latch receiver rotatably attached to the other end of the lever 5 with a screw 11. The latch receiver 10 is provided with a hook portion 58 that engages with a hook 18, which will be described later. The portion 58 is provided with protrusions (not shown) on both sides thereof that are slidable in the groove 13 provided in the latch base 12, which constitutes a guide. The latch base 12 is fixed to the latch mounting plate 14 with screws 15,
Since the latch mounting plate 14 is fixed to the rail plate 16 with screws (not shown), and the rail plate 16 is further fixed to the base 8 with screws 17 shown in FIG. It will be fixed. 18 is the shaft 1 on the latch base 12
9 is a hanger rotatably attached; 20 is a groove provided in the hanger; 21 is a tripping movable iron core whose shaft portion 22 is inserted into the groove 20; 23;
has a columnar hole into which a tripping movable core 21 is inserted, and a tripping coil that drives this movable core;
24 is a yoke plate provided on the outside of the tripping coil 23 so as to close one side of the columnar hole; 25 is a spring provided between the yoke plate 24 and the tripping core 21; This applies force to the side. In addition, the latch mounting plate 14,
A magnetic path is formed between the trip iron core 21 and the yoke plate 24. The trip iron core 21, trip coil 22, spring 25, etc. constitute the main part of the electromagnet means for tripping the latch, and this electromagnet means, the latch receiver 10, the latch base 12, the hanger 18, etc. are used to lock the latch and its trip. It constitutes the main part of the removal mechanism. 26 is a solid iron core facing the movable iron core 3; 27 is a charging coil that is housed in a coil case 28 and wound around the fixed iron core 26, and is fixed to the rail plate 16 together with the fixed iron core 26 and the coil case 28. 29 is a self-demagnetizing switch that constitutes an opening/closing mechanism that cuts off the excitation current of the closing coil 27; 30 is an operating plate that constitutes an operating body that opens and closes the self-demagnetizing switch 29; one end is connected to a groove 31 formed in the latch base 12; The other end of the self-demagnetizing switch 29 is in contact with an auxiliary crossbar 32 which is an opening/closing operating body for the self-demagnetizing switch 29. Then, a shaft 35 connected to the latch 18 is inserted into a hole 34 provided in the central bent portion 33, and thereby the actuating plate 30 is attached to the latch base 1.
It is rotatably held relative to 2. In addition, in FIG. 2, 8a is a sliding groove of the cross bar 2.
自己消磁スイツチ２９は、ねじ３６によりラツ
チベース１２に固定され、次の様に構成されてい
る。３７は自己消磁スイツチ２９を構成するスイ
ツチベース、３８はスイツチベース３７に固定さ
れ、投入コイル２７と引きはずしコイル２３に外
部電線を接続する４個の中継端子、３９は同じく
スイツチベース３７に固定される一対の固定接触
子、４０は固定接触子３９と相対する可動接触
子、４１は可動接触子４０を付勢する押ばねで、
この可動接触子４０、押ばね４１は補助クロスバ
ー３２に形成される角穴４２に保持されている。
４３は補助クロスバー３２を付勢するばねで、補
助クロスバー３２をスイツチベース３７内で所定
の摺動動作させるものである。４４はスイツチベ
ース３７に固定され、その上部を覆うスイツチカ
バーである。 The self-demagnetizing switch 29 is fixed to the latch base 12 with a screw 36 and is constructed as follows. 37 is a switch base constituting the self-demagnetizing switch 29; 38 is fixed to the switch base 37; four relay terminals connect external wires to the closing coil 27 and the tripping coil 23; 39 is also fixed to the switch base 37; 40 is a movable contact facing the fixed contact 39; 41 is a push spring that biases the movable contact 40;
The movable contact 40 and the push spring 41 are held in a square hole 42 formed in the auxiliary crossbar 32.
A spring 43 biases the auxiliary cross bar 32 and causes the auxiliary cross bar 32 to slide within the switch base 37 in a predetermined manner. A switch cover 44 is fixed to the switch base 37 and covers the upper part thereof.
次にその電気接続構成について第４図を用いて
説明する。投入コイル２７は、自己消磁スイツチ
２９の接点部分５２と直列に接続されて、機械的
に電磁触器が保持された時に接点部分５２が開路
し消磁される。又、引きはずしコイル２３は主接
点部分５３と並動する補助接点５４の常開接点５
５に直列接続されて、電磁接触器の機械的保持が
引きはずされた時に開路し、消磁される様に構成
されている。 Next, the electrical connection configuration will be explained using FIG. 4. The closing coil 27 is connected in series with a contact portion 52 of a self-demagnetizing switch 29, and when the electromagnetic contactor is mechanically held, the contact portion 52 is opened and demagnetized. Further, the tripping coil 23 is connected to the normally open contact 5 of the auxiliary contact 54 which operates in parallel with the main contact portion 53.
5 and is configured to open and demagnetize when the mechanical holding of the electromagnetic contactor is tripped.
次に、上記構成による電磁接触器の動作につい
て説明する。第１図はラツチ機構の解除した後の
開放状態を示し、第３図はラツチ機構により保持
された保持状態を示している。 Next, the operation of the electromagnetic contactor with the above configuration will be explained. FIG. 1 shows the open state after the latch mechanism has been released, and FIG. 3 shows the held state held by the latch mechanism.
今、説明の都合上、開放状態から保持状態にか
わる動作を投入動作、保持状態から開放状態にか
わる動作を引きはずし動作と称し、先ず投入動作
について説明する。 For convenience of explanation, the operation of changing from the open state to the holding state will be referred to as the closing operation, and the operation of changing from the holding state to the open state will be referred to as the tripping operation, and the closing operation will be explained first.
第１図において、投入コイル２７を励磁する
と、可動鉄心３は図示されていない戻しばねのば
ね圧に抗して固定鉄心２６に吸引され、矢印Ａ方
向に移動し、本体のベース８に設けられた摺動溝
８ａを摺動するクロスバー２を介して、可動接触
子１と固定接触子１ａおよび１ｂの接点が接触す
ると共に、レバー５の一端と連結体６はねじ７を
中心として矢印Ｂ方向に回転移動し、レバー５の
他端とラツチ受け１０はラツチベース１２の溝１
３をガイドとして矢印Ｃ方向に移動する。可動鉄
心３が固定鉄心２６に吸着し、ラツチ受け１０の
角部５６が掛け具１８の角部５７より外れると、
掛け具１８は軸１９を中心として矢印Ｄ方向に移
動してラツチ受け１０のフツク部５８に、掛け具
１８の先端部５９が入り込む。掛け具１８の移動
は引きはずし鉄心２１を介したばね２５と、作動
板３０、補助クロスバー３２を介したばね４３の
付勢力により行なわれる。 In FIG. 1, when the closing coil 27 is excited, the movable core 3 is attracted to the fixed core 26 against the spring pressure of a return spring (not shown), moves in the direction of arrow A, and is attached to the base 8 of the main body. The contact points of the movable contact 1 and the fixed contacts 1a and 1b come into contact via the cross bar 2 which slides in the sliding groove 8a, and one end of the lever 5 and the connecting body 6 move in the direction of arrow B with the screw 7 as the center. The other end of the lever 5 and the latch receiver 10 are aligned with the groove 1 of the latch base 12.
3 as a guide to move in the direction of arrow C. When the movable iron core 3 is attracted to the fixed iron core 26 and the corner 56 of the latch receiver 10 comes off from the corner 57 of the hanger 18,
The hanger 18 moves in the direction of arrow D around the shaft 19, and the tip end 59 of the hanger 18 enters the hook portion 58 of the latch receiver 10. The movement of the hanger 18 is effected by the urging force of a spring 25 via a trip iron core 21, a spring 43 via an actuating plate 30, and an auxiliary crossbar 32.
掛け具１８に連結された軸３５が軸１９を中心
に掛け具１８と同様に矢印Ｄ方向に回転すると共
に、軸３５に連結された作動板３０がラツチベー
ス１２の溝３１を中心として矢印Ｅ方向に回転す
る。作動板３０の先端が矢印Ｅ方向に回転する
と、ばね４３で付勢されている補助クロスバー３
２が矢印Ｅ方向に移動して固定接触子３９から可
動接触子４０が開離する。接点部分５２が開離す
ると投入コイル２７が消磁されて図示されていな
い戻しばね作用により可動鉄心３が固定鉄心２６
より離れ、矢印Ａ方向と逆方向に移動する。可動
鉄心３の移動に伴ない、ラツチ受け１０が矢印Ｃ
方向と逆方向に移動するが、第３図に示す通り、
ラツチ受け１０のラツチ部５８と掛け具１８の先
端部５９が当接してラツチ受け１０を掛け具１８
により係止するため、機械的にクロスバー２が保
持されて投入動作を完了する。 A shaft 35 connected to the hanger 18 rotates in the direction of arrow D about the shaft 19 in the same way as the hanger 18, and an actuating plate 30 connected to the shaft 35 rotates in the direction of arrow E around the groove 31 of the latch base 12. Rotate to. When the tip of the actuating plate 30 rotates in the direction of arrow E, the auxiliary crossbar 3 biased by the spring 43
2 moves in the direction of arrow E, and the movable contact 40 separates from the fixed contact 39. When the contact portion 52 is opened, the closing coil 27 is demagnetized and the movable core 3 is moved back to the fixed core 26 by the action of a return spring (not shown).
Move further away and move in the opposite direction to arrow A. As the movable iron core 3 moves, the latch receiver 10 moves in the direction of arrow C.
Although it moves in the opposite direction, as shown in Figure 3,
The latch part 58 of the latch receiver 10 and the tip end 59 of the hanger 18 contact each other, and the latch receiver 10 is moved to the hanger 18.
Since the crossbar 2 is locked by the crossbar 2, the crossbar 2 is mechanically held and the closing operation is completed.
次に、引きはずし動作について説明する。 Next, the tripping operation will be explained.
第３図において、閉路状態の常開接点５５と直
列に接続されている引きはずしコイル２３を励磁
すると、引きはずし鉄心２１はばね２５のばね圧
に抗して継鉄板２４に吸引されて矢印Ｆ方向に移
動する。引きはずし鉄心２１と連結された掛け具
１８は矢印Ｇ方向に回転し、ラツチ受け１０より
掛け具１８が外れて係合が解除される。係合が解
除されると、図示されていない戻しばねによりラ
ツチ受け１０はラツチベース１２の溝１３をガイ
ドにして矢印Ｈ方向に、レバー５は矢印Ｈ、Ｊ方
向に、連結体６は矢印Ｊ方向に、可動鉄心３は矢
印Ｋ方向に、クロスバー２は摺動溝８ａをガイド
にして矢印Ｋ方向に夫々移動して第１図の開放状
態に復帰する。クロスバー２の移動中に常開接点
５５は開路して引きはずしコイル２３を消磁し、
又、掛け具１８の移動により、作動板３０、補助
クロスバー３２は矢印Ｌ方向に移動して接点部分
５２を閉路状態に戻す。 In FIG. 3, when the trip coil 23 connected in series with the normally open contact 55 in the closed circuit state is excited, the trip core 21 is attracted to the yoke plate 24 against the spring pressure of the spring 25, and is attracted to the arrow F move in the direction. The hook 18 connected to the trip iron core 21 rotates in the direction of arrow G, and the hook 18 is disengaged from the latch receiver 10, so that the engagement is released. When the engagement is released, a return spring (not shown) moves the latch receiver 10 in the direction of arrow H using the groove 13 of the latch base 12 as a guide, the lever 5 moves in the direction of arrows H and J, and the connecting body 6 moves in the direction of arrow J. Then, the movable iron core 3 moves in the direction of arrow K, and the cross bar 2 moves in the direction of arrow K using the sliding groove 8a as a guide, and returns to the open state shown in FIG. 1. While the crossbar 2 is moving, the normally open contact 55 opens and demagnetizes the tripping coil 23.
Further, as the hook 18 moves, the actuating plate 30 and the auxiliary crossbar 32 move in the direction of arrow L, returning the contact portion 52 to the closed state.
上述のごとく、この実施例では掛け具１８はラ
ツチベース１２上に回動自在に枢着され、プラン
ジヤーを兼ねた引きはずし鉄心２１と係合し、か
つこの鉄心２１を介してばね２５により付勢され
てラツチ受け１０に当接されている。作動体を構
成する作動板３０はそのほゞ、中間部が上部掛け
具１８の上記引きはずし鉄心２１との係合部近傍
でこの掛け具１８に回動自在に支承され、上記ラ
ツチベース１２上の掛け具の枢軸の位置とは反対
側の一端がピボツト動作の支点として、すなわ
ち、この作動板３０の回動の支点となると共に、
上記掛け具１８による軸支側へは移動可能に上記
ラツチベース１２上に保持され、他端が投入コイ
ル２７の励磁を断つ開閉機構を構成する自己消磁
スイツチ２９の開閉操作体である補助クロスバー
３２の突起部と係接し、この電磁接触器が動作し
ていない状態では、第１図に示すごとくこの突起
部をこのスイツチ２９のばね４３に抗して押し込
んだ状態にある。そして上記投入コイル２７が励
磁されると、第３図に示すように上記ラツチ受け
１０が移動してそのフツク部５８へ上記掛け具１
８が係合、すなわちラツチされ、同時に上記作動
板３０が回動して上記自己消磁スイツチ２９の補
助クロスバー３２が解放され、ばね４３により開
状態となる。この作動板３０は上記ラツチ受け１
０のフツク部５８へ掛け具１８が係合される際
の、この掛け具１８を押し込む上記引きはずし鉄
心２１のストロークを拡大して、上記補助クロス
バー３２の必要なストロークを確保するためのも
のである。 As mentioned above, in this embodiment, the hanger 18 is rotatably pivoted on the latch base 12, engages with the trip core 21 which also serves as a plunger, and is biased by the spring 25 via the core 21. and is brought into contact with the latch receiver 10. The actuating plate 30 constituting the actuating body is rotatably supported by the upper hanger 18 near the engaging portion of the upper hanger 18 with the trip core 21 at its middle portion, and is supported on the latch base 12 by One end of the hanger opposite to the pivot position serves as a fulcrum for pivoting, that is, a fulcrum for rotation of this actuating plate 30, and
An auxiliary crossbar 32 is movably held on the latch base 12 toward the shaft support side of the hanger 18, and the other end is an opening/closing operation body for a self-demagnetizing switch 29 constituting an opening/closing mechanism for cutting off the excitation of the closing coil 27. When the electromagnetic contactor is not operating, the protrusion is pushed in against the spring 43 of the switch 29, as shown in FIG. When the closing coil 27 is energized, the latch receiver 10 moves and the hook 10 is attached to the hook portion 58 as shown in FIG.
8 is engaged or latched, and at the same time the actuating plate 30 pivots to release the auxiliary crossbar 32 of the self-demagnetizing switch 29, which is opened by the spring 43. This actuating plate 30 is connected to the latch receiver 1.
When the hanger 18 is engaged with the hook portion 58 of 0, the stroke of the tripping core 21 that pushes the hanger 18 is expanded to ensure the necessary stroke of the auxiliary cross bar 32. It is.
すなわち、上記掛け具１８の枢軸１９からラツ
チ受け１０のフツク部５８との係合箇所までの距
離は同じく枢軸１９から引きはずし鉄心２１との
係合箇所の中心までの距離とはほゞ等しいものと
して、これをL0、同じく枢軸１９から作動板３
０との枢軸３５までの距離をL1、上記引きはず
し鉄心２１の動作距離（ストローク）をl0、上記
枢軸３５の移動距離をl1、とすると
l1＝l0L1／L0 ……(1)
の関係にあり、上記作動板３０のピボツト３１
と上記掛け具１８との枢軸３５間の距離をL2、
同じくピボツト３０と上記補助クロスバー３２と
の係接点との距離をL3、このクロスバー３２の
作動距離（ストローク）をl3とすると(1)式を用い
て
l3＝l1・L3／L2＝l0・L1／L0・L3／L2 ……(2)
の関係が得られる。すなわち上記掛け具１８の
作動板３０との枢軸３５の位置を引きはずし鉄心
２１との係合箇所近傍に位置させて、L1≒L0が
成りたてば、上記枢軸３５が作動板３０のほゞ中
央にあり、L3≒2L2とすると(2)式において、l3＝
2l0となり、上記自己消磁スイツチ２９の補助ク
ロスバー３２は、上記作動板３０の効果により、
引きはずし鉄心２１、引きはずしコイル２３等か
ら構成された電磁石手段の約２倍のストロークが
得られるが、上記(2)式においてL1／L0・L3／L2＞１を
適切に選定することで任意の倍率のストロークが
得られる。 That is, the distance from the pivot 19 of the hanger 18 to the engagement point with the hook portion 58 of the latch receiver 10 is approximately equal to the distance from the pivot 19 to the center of the engagement location with the tripping core 21. , this is L 0 , and also from the axis 19 to the actuating plate 3
0 to the pivot 35 is L 1 , the operating distance (stroke) of the tripping core 21 is l 0 , and the moving distance of the pivot 35 is l 1 , then l 1 = l 0 L 1 /L 0 ... ...(1), and the pivot 31 of the actuating plate 30
The distance between the pivot 35 and the hanger 18 is L 2 ,
Similarly, if the distance between the pivot 30 and the contact point of the auxiliary crossbar 32 is L3 , and the operating distance (stroke) of this crossbar 32 is l3 , then using equation (1), l3 = l1・L3 /L 2 =l 0・L 1 /L 0・L 3 /L 2 …(2) is obtained. That is, if the position of the pivot 35 of the hanger 18 with the actuation plate 30 is located near the engagement point with the tripping core 21 and L 1 ≒ L 0 holds, then the pivot 35 is connected with the actuation plate 30 . It is located almost in the center, and if L 3 ≒ 2L 2 , then in equation (2), l 3 =
2l 0 , and the auxiliary crossbar 32 of the self-demagnetizing switch 29 is activated by the effect of the actuating plate 30.
Approximately twice the stroke of the electromagnetic means composed of the tripping core 21, tripping coil 23, etc. can be obtained, but by appropriately selecting L 1 /L 0 · L 3 /L 2 > 1 in the above equation (2). By doing this, you can obtain a stroke of any magnification.
掛け具１８の腕の枢軸側に電磁石手段の引きは
ずし鉄心を係合させ、その外側に自己消磁スイツ
チの補助クロスバー突起を配設しても上記引きは
ずし鉄心のストロークを拡大して補助クロスバー
を作動させ得るが、ラツチ受けとの係合の精度を
考慮すると上記掛け具の許容回転角には限度があ
り、この掛け具の制限された回転角の範囲内で必
要なストロークの拡大を得ようとすると、必然的
に掛け具の腕の長さが長くなり、ラツチ機構自身
が大きくなる不都合を生ずる。すなわち、作動板
３０はストロークの拡大をコンパクト構造体内に
実現する効果を有する。 Even if the trip core of the electromagnetic means is engaged with the pivot side of the arm of the hanger 18 and the auxiliary crossbar protrusion of the self-demagnetizing switch is disposed on the outside thereof, the stroke of the tripping core is expanded and the auxiliary crossbar However, considering the accuracy of engagement with the latch receiver, there is a limit to the permissible rotation angle of the above-mentioned hanger, and it is difficult to obtain the necessary stroke expansion within the limited rotation angle of this hanger. If this is attempted, the length of the arm of the hanger will inevitably become longer, resulting in the disadvantage that the latch mechanism itself will become larger. That is, the actuating plate 30 has the effect of realizing stroke expansion within a compact structure.
以上のように、この発明によれば作動体を掛け
具に回動自在に支承させ、この作動体の上記掛け
具の枢軸側の端部分を開閉機構の開閉操作体に係
接させ、他端部をピボツト動作する支点とするよ
うに構成したので、上記作動体の開閉操作体との
係接点では、上記掛け具のラツチ受けとのラツチ
のための移動ストロークにほゞ等しいラツチ引き
はずし電磁石手段の有効ストロークを拡大した、
上記開閉機構の操作に必要なストロークが比較的
小寸法の空間内で得られ、上記電磁石手段も比較
的小容量ですむという効果がある。
As described above, according to the present invention, the actuating body is rotatably supported by the hanger, the end of the actuating body on the pivot side of the hanger is engaged with the opening/closing operation body of the opening/closing mechanism, and the other end Since the part is configured to be a fulcrum for pivoting, at the point of engagement of the operating body with the opening/closing operation body, the latch tripping electromagnetic means is approximately equal to the movement stroke for latching the latch with the latch receiver. The effective stroke of
The advantage is that the stroke necessary for operating the opening/closing mechanism can be obtained within a relatively small space, and that the electromagnetic means also requires a relatively small capacity.
第１図はこの発明の一実施例であるラツチ付電
磁接触器の開放状態を示す図、第２図は第１図の
−線断面図、第３図はこの発明の一実施例で
あるラツチ付電磁接触器の保持状態を示す図、第
４図はこの発明の一実施例であるラツチ付電磁接
触器の電気接続図、第５図は従来のラツチ付電磁
接触器のラツチ動作した状態にある断面を示す図
である。
図中３は可動鉄心、５はレバー、１０はラツチ
受け、１２はラツチベース、１３は溝、１４はラ
ツチ取付板、１８は掛け具、２６は固定鉄心、２
７は投入コイル、２９は開閉機構を構成する自己
消磁スイツチ、３２は開閉機構の開閉操作体であ
る補助クロスバー、３０は作動体を構成する作動
板である。なお、図中同一符号は同一又は相当部
分を示す。
Fig. 1 is a diagram showing an open state of an electromagnetic contactor with a latch which is an embodiment of the present invention, Fig. 2 is a sectional view taken along the line - - of Fig. Figure 4 is an electrical connection diagram of a magnetic contactor with a latch, which is an embodiment of the present invention, and Figure 5 shows a conventional magnetic contactor with a latch in a latched state. It is a figure which shows a certain cross section. In the figure, 3 is a movable core, 5 is a lever, 10 is a latch receiver, 12 is a latch base, 13 is a groove, 14 is a latch mounting plate, 18 is a hanger, 26 is a fixed core, 2
Reference numeral 7 indicates a closing coil, 29 a self-demagnetizing switch constituting the opening/closing mechanism, 32 an auxiliary crossbar serving as an opening/closing operating body of the opening/closing mechanism, and 30 an operating plate constituting an operating body. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
回路接点を閉成状態にラツチして開閉機構により
前記主回路電磁石を消磁させると共に引きはずし
電磁石によりラツチを外して主回路接点を開放す
るラツチ付電磁接触器において、 前記ラツチ機構を前記主回路電磁石の駆動方向
に移動するフツク部を設けたラツチ受けと、一端
が回動可能に枢着され可動端側が前記引きはずし
電磁石に連結されてバネ圧により前記フツク部に
係合する掛け具とから構成し、該掛け具に中央部
を回動可能に連結しこの掛け具の回動支点側の端
部を前記開閉機構の開閉操作体に係接すると共に
他端部をピボツト動作する支点とした作動体を設
けたことを特徴とするラツチ付電磁接触器。[Scope of Claims] 1. Excite the main circuit electromagnet, use the latch mechanism to latch the main circuit contacts in the closed state, demagnetize the main circuit electromagnet using the opening/closing mechanism, and release the latch using the tripping electromagnet to close the main circuit contacts. In an electromagnetic contactor with a latch for opening, the latch receiver is provided with a hook part that moves the latch mechanism in the driving direction of the main circuit electromagnet, and one end is rotatably pivoted and the movable end side is connected to the tripping electromagnet. and a hanger that is connected to the hook and engages with the hook part by spring pressure, the central part of the hanger is rotatably connected to the hanger, and the end of the hanger on the rotation fulcrum side is used to open and close the opening/closing mechanism. An electromagnetic contactor with a latch, characterized in that it is provided with an operating body that engages with an operating body and uses its other end as a fulcrum for pivoting motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27481287A JPS63126132A (en) | 1987-10-30 | 1987-10-30 | Electromagnetic contactor with latch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27481287A JPS63126132A (en) | 1987-10-30 | 1987-10-30 | Electromagnetic contactor with latch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63126132A JPS63126132A (en) | 1988-05-30 |
| JPH0338691B2 true JPH0338691B2 (en) | 1991-06-11 |
Family
ID=17546909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27481287A Granted JPS63126132A (en) | 1987-10-30 | 1987-10-30 | Electromagnetic contactor with latch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63126132A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4396170T1 (en) * | 1992-11-24 | 1995-10-05 | Komatsu Mfg Co Ltd | Four-wheel drive system for dump trucks |
| JP2014107221A (en) | 2012-11-29 | 2014-06-09 | Fujitsu Component Ltd | Relay |
| JP7254423B2 (en) * | 2019-05-15 | 2023-04-10 | 日東工業株式会社 | magnetic contactor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5545649U (en) * | 1978-09-18 | 1980-03-25 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49119765U (en) * | 1973-02-12 | 1974-10-14 |
-
1987
- 1987-10-30 JP JP27481287A patent/JPS63126132A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5545649U (en) * | 1978-09-18 | 1980-03-25 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63126132A (en) | 1988-05-30 |
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