JPS5828133A - Movable contact mechanism for electromagnetic contactor - Google Patents
Movable contact mechanism for electromagnetic contactorInfo
- Publication number
- JPS5828133A JPS5828133A JP12648481A JP12648481A JPS5828133A JP S5828133 A JPS5828133 A JP S5828133A JP 12648481 A JP12648481 A JP 12648481A JP 12648481 A JP12648481 A JP 12648481A JP S5828133 A JPS5828133 A JP S5828133A
- Authority
- JP
- Japan
- Prior art keywords
- movable contact
- contact
- spring
- fixed
- movable
- 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.)
- Granted
Links
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 本発明は電磁接触器の可動接点機構、特に電動。[Detailed description of the invention] The present invention relates to a movable contact mechanism of an electromagnetic contactor, particularly an electric contactor.
機などの電路を開閉制御する電磁接触器の可動接点機構
に関する。This invention relates to a movable contact mechanism for an electromagnetic contactor that controls the opening and closing of electric circuits in machines, etc.
従来、この種の電磁接触器の可動接点機構として第１図
に示される機構が使用されていた。Conventionally, a mechanism shown in FIG. 1 has been used as a movable contact mechanism for this type of electromagnetic contactor.
図において、電磁接触器本体全取付盤などに取シ付ける
ために箱状に形成された取付板１０が設けられ、取付板
１０に設けられた複数の取付孔１０１Ｌを介して電磁接
触器本体が取付盤に螺着されている。In the figure, a box-shaped mounting plate 10 is provided for mounting the electromagnetic contactor main body on a complete mounting board, etc., and the electromagnetic contactor main body is mounted through a plurality of mounting holes 101L provided in the mounting plate 10. It is screwed onto the mounting board.
そして、電磁接触器は以下に説明するような可動接点機
構を有している。The electromagnetic contactor has a movable contact mechanism as described below.
すなわち、取付板１０には絶縁材にて形成されたベース
１２が取付ねじ１４によって固定され、ベース１２には
主回路に接続される端子板１６が固定され、また端子板
１６には固定接点１８を備えた固定接触子２０が端子板
１６と導電状態で固定されている。更に、ベース１２に
は絶縁材にて形成されたクロスバー２２が第１図におい
て上下動可能に設けられており、クロスバー２２は該ク
ロスパー２２下端に設けられたばね受２４と取付板１０
との間に圧入された引外しばね２６によシ、第１図にお
いて上方向に付勢されている。そして、上記クロスパー
２２に設けられた保持孔２８には、前記固定接点１８と
対向配置される可動接点３゜を備えた可動接触子３２が
挿設され、可動接触子３２はクロスパー２２に設けられ
たばね受３４とばね支え３６との間に圧縮状態で装着さ
れた接触子ばね３Ｂにより第１図において下方向に付勢
されている。That is, a base 12 made of an insulating material is fixed to the mounting plate 10 with mounting screws 14, a terminal plate 16 connected to the main circuit is fixed to the base 12, and a fixed contact 18 is fixed to the terminal plate 16. A fixed contact 20 having a fixed contact 20 is fixed to the terminal plate 16 in a conductive state. Furthermore, a cross bar 22 made of an insulating material is provided on the base 12 so as to be movable up and down as shown in FIG.
It is biased upward in FIG. 1 by a tripping spring 26 press-fitted between the two. A movable contact 32 having a movable contact 3° facing the fixed contact 18 is inserted into the holding hole 28 provided in the cross par 22. It is biased downward in FIG. 1 by the contact spring 3B, which is compressed and mounted between the leaf spring receiver 34 and the spring support 36.
可動接点機構は以上の構成から成シ、以下に可動接点３
０を駆動し固定接点１８との協働で接点開閉作用を行わ
せるための駆動機構について説明する。The movable contact mechanism consists of the above configuration, and the movable contact 3 is shown below.
A driving mechanism for driving the contact point 0 and performing the contact opening/closing action in cooperation with the fixed contact point 18 will be explained.
すなわち、取付板ｌｏ上にはけい素鋼板が積層された固
定鉄心４０が配置されておシ、この固定鉄心４０には複
数のビン４２が挿通され、更にこのピン４２の両端部に
緩衝ゴム４４が装着されるとともに、この緩衝ゴム４４
と取付板１ｏとの間に緩衝ばね４６が装設されている。That is, a fixed core 40 made of laminated silicon steel plates is arranged on the mounting plate lo, a plurality of pins 42 are inserted through the fixed core 40, and buffer rubber 44 is attached to both ends of the pin 42. is installed, and this cushioning rubber 44
A buffer spring 46 is installed between the mounting plate 1o and the mounting plate 1o.
ｔた、前記クロスパー２２の下端にはぎ７４８にて可動
鉄心５゜宰固定され、該可動鉄心５ｏは固定鉄心４０に
対して所定の間隙を隔てて対向配置されている。そして
、固定鉄心４０に電磁力を与え可動鉄心を吸引するため
に、固定鉄心４０に装着されたコイル保持枠５２には操
作コイル５４が巻回されておシ、操作コイル５４とコイ
ル端子５６とＬリード線５１にて接続されている。Furthermore, a movable iron core 5o is secured to the lower end of the cross spar 22 by a hook 748, and the movable iron core 5o is disposed opposite to the fixed iron core 40 with a predetermined gap therebetween. In order to apply electromagnetic force to the fixed core 40 and attract the movable core, an operating coil 54 is wound around a coil holding frame 52 attached to the fixed core 40, and the operating coil 54 and the coil terminal 56 are connected to each other. It is connected by an L lead wire 51.
更に、接点開閉の際に生じるアークを消弧させるためＫ
、ペース１２には耐熱性材料から成るアークがツクス６
０がねじ６２にて固定されておシ、このアークボックス
６０内には磁性金属から成シ可動接点３０及び固定接点
１８を包囲するように形成されたグリッド６４が設けら
れ、該グリッド６４によ）アークが導き消弧される。Furthermore, K is used to extinguish the arc that occurs when the contacts open and close.
, Pace 12 has an arc made of heat-resistant material.
0 is fixed with a screw 62. A grid 64 made of magnetic metal and formed so as to surround the movable contact 30 and the fixed contact 18 is provided in the arc box 60. ) The arc is guided and extinguished.
従来の電磁接触器の可動接点機構は以上の構成から成シ
、以下にその作用を説明する。The movable contact mechanism of a conventional electromagnetic contactor has the above configuration, and its operation will be explained below.
操作コイル５４に駆動電圧が印加されると、この操作コ
イル５４が発生する磁束によシ固定鉄心４０と可動鉄心
５０との間に電磁吸引力が生じ、上記可動鉄心５０が引
外しばね２６に抗して固定鉄心４０に吸引される。これ
に伴って可動鉄心５゜に連結されたクロスパー２２が固
定鉄心４０＠に移動し、クロスパー２２に保持された可
動接触子３２の可動接点３０が固定接触子２０の固定接
点１８と当接する。このとき、可動接点３０と固定接点
１８との間の接点ギャップよシも可動鉄心５０と固定鉄
心４０との間の鉄心ギャップの方が大きく形成されてい
るので、鉄心の閉成時にはクロスパー２２は上記接点の
当接位置よシもさらに固定鉄心４０＠に移動する。この
ため接触子ばね３８が圧縮変形し、このばね圧力がばね
支え３６を介して可動接触子３２に伝達され、所定の接
触圧力を得て接点１８．３０間を閉成する。When a driving voltage is applied to the operating coil 54 , an electromagnetic attraction force is generated between the fixed iron core 40 and the movable iron core 50 due to the magnetic flux generated by the operating coil 54 , and the movable iron core 50 is applied to the tripping spring 26 . It resists and is attracted to the fixed iron core 40. Accordingly, the cross spar 22 connected to the movable iron core 5° moves to the fixed iron core 40@, and the movable contact 30 of the movable contact 32 held by the cross spar 22 comes into contact with the fixed contact 18 of the fixed contact 20. At this time, since the core gap between the movable core 50 and the fixed core 40 is larger than the contact gap between the movable contact 30 and the fixed contact 18, the cross spar 22 is formed when the core is closed. The abutting position of the contact point is also further moved to the fixed iron core 40@. Therefore, the contact spring 38 is compressed and deformed, and this spring pressure is transmitted to the movable contact 32 via the spring support 36 to obtain a predetermined contact pressure and close the contacts 18 and 30.
操作コイル５４に印加されていた駆動電圧を取シ除くと
、固定鉄心４０と可動鉄心５０との間の電磁吸引力は消
滅し、クロスパー２２は圧縮されている引外しばね２６
のばね付勢力によシ反固定鉄心側に移動されて各接点１
ｇ、３０間が開離する。When the drive voltage applied to the operating coil 54 is removed, the electromagnetic attractive force between the fixed core 40 and the movable core 50 disappears, and the cross spar 22 is released from the compressed tripping spring 26.
Each contact 1 is moved toward the side opposite to the fixed core by the spring biasing force of
g, 30 are separated.
このとき、可動接点３０と固定接点１８との間アークが
発生するが、このアークは上記接点部分を包囲するグリ
ッド６４内に引込まれ、冷却分断されて消弧される。At this time, an arc is generated between the movable contact 30 and the fixed contact 18, but this arc is drawn into the grid 64 that surrounds the contact portion, is cooled and divided, and is extinguished.
しかしながら、従来の電磁接触器の可動接点機構におい
ては、可動接触子３２は単にクロスパー２２に設けられ
た保持孔２８に挿設され、ばね受３４とばね支え３６と
の間に圧縮状態で装設された接触子ばね３８によシ押圧
支持されているにすぎなかった。このため、固定接点１
８と可動接点３８との接点開閉作用によシ可動接触子３
２ががたつき、可動接点１８の接点位置ずれを生じて両
接点１ｇ、３ｇの消耗量が多くなるという欠点があった
。However, in the movable contact mechanism of the conventional electromagnetic contactor, the movable contact 32 is simply inserted into the holding hole 28 provided in the cross spar 22, and is installed in a compressed state between the spring receiver 34 and the spring support 36. The contact spring 38 was simply pressed and supported by the contact spring 38. For this reason, fixed contact 1
8 and the movable contact 38, the movable contact 3
2 rattles, causing the contact position of the movable contact 18 to shift, resulting in an increase in the amount of wear of both contacts 1g and 3g.
また、従来の電磁接触器の可動接点機構においては可動
接触子３２の着脱交換作業が複雑化し、可動接触子３２
を゛容易に取シ替えることができないという欠点があっ
た。In addition, in the movable contact mechanism of the conventional electromagnetic contactor, the work of attaching and detaching the movable contactor 32 becomes complicated, and the movable contactor 32
The disadvantage was that it could not be easily replaced.
更に、従来の電磁接触器の可動接点機構においては、接
点閉成時の両接点１８．３０間の接触抵抗により両接点
１ｇ、３０が発熱してその消耗量が多くな）、また両接
点１Ｂ、３０に接続される電線等を損傷する等の欠点が
あった。Furthermore, in the movable contact mechanism of the conventional electromagnetic contactor, both contacts 1g and 30 generate heat due to contact resistance between both contacts 18 and 30 when the contacts are closed, resulting in a large amount of wear. , 30 has the disadvantage of damaging the electric wires etc. connected to it.
本発明は前述した従来の課題に鑑み為されたものであり
、その目的は接点開閉作用による可動接触子のがたつき
を防止して可動接点の接点位置ずれを防止することがで
き、可動接触子を容易に着脱交換することができ、両接
点の接触抵抗による発熱を放熱することができる電磁接
触器の可動接点機構を提供することにある。The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to prevent the movable contact from wobbling due to the contact opening/closing action and to prevent the contact position of the movable contact from shifting. It is an object of the present invention to provide a movable contact mechanism for an electromagnetic contactor, in which a child can be easily attached and detached, and heat generated by contact resistance of both contacts can be radiated.
上記目的を達成するために、本発明はペースに固定され
た主回路固定接点と、ベースに摺動自在に設けられたク
ロスバーに担持され前記固定接点を開閉する可動接点と
、を含む電磁接触器の可動接点機構において、可動接点
を有しクロスバーの上端部に当接配置された可動接触子
と、一端がクロスバーに設けられたばね孔に挿入され他
端が可動接触子を把持するばね受けと、クロスバーのば
ね孔に挿入され一端かばね受けに他端がクロスバーに固
定されたストン／９に係止される接点ばねと、可動接触
子とげね受けとの間に装着され可動接触子及びばね受け
との保合部と指掛は部と放熱フィンとを含む熱良導体か
ら成る可動接触子弁えと、を備えたことを特徴とする。In order to achieve the above object, the present invention provides an electromagnetic contact including a main circuit fixed contact fixed to a pace, and a movable contact supported on a crossbar slidably provided on a base and opening and closing the fixed contact. The movable contact mechanism of the device includes a movable contact having a movable contact and placed in contact with the upper end of the crossbar, and a spring whose one end is inserted into a spring hole provided in the crossbar and whose other end grips the movable contact. A movable contact is installed between the receiver, a contact spring that is inserted into the spring hole of the cross bar and is locked to a stone/9 whose one end or the other end is fixed to the cross bar, and the movable contact barb receiver. The present invention is characterized by comprising a movable contact valve plate made of a good thermal conductor including a retaining part for the child and the spring receiver, a finger rest part, and a heat radiation fin.
以下図面に基づいて本発明の好適な実施例を説明する。Preferred embodiments of the present invention will be described below based on the drawings.
第２図には本発明に係る電磁接触器の可動接点機構の好
適な実施例が示されておシ、図において前述した従来例
と同一部材には同一符号を付して説明を省略する。FIG. 2 shows a preferred embodiment of the movable contact mechanism of the electromagnetic contactor according to the present invention, and in the figure, the same members as in the conventional example described above are given the same reference numerals, and the explanation thereof will be omitted.
クロスバー６６の上端部６６ａは第３図で示されるよう
に船底型に形成され、該クロスバー６６の上端部６６ａ
には断面形状がコの字型をした可動接触子６８が当接配
置されており、可動接触子６８の両端下部には可動接点
７０が固着されている。そして、第４図で示されるよう
にクロスバー６６の内部に設けられたばね孔７２には、
ばね受け７４の一端が挿入されておシ、ばね受け７４の
他端は前記可動接触子６８を把持している。また、クロ
スバー６６のはね孔７２には接点ばね７６が圧縮状態で
挿入され、接点ばね７６の一端はばね受け７４の一端内
面に固定され、他端はクロスバ−６６に固定されたスト
ン・９７８に固定されている。従って、可動接触子６８
は接点ばね７６の付勢力によシ常時固定接点１Ｂ側に向
って押圧付勢されている。The upper end 66a of the cross bar 66 is formed into a ship's bottom shape as shown in FIG.
A movable contact 68 having a U-shaped cross section is disposed in contact with the movable contact 68, and movable contacts 70 are fixed to the lower portions of both ends of the movable contact 68. As shown in FIG. 4, the spring hole 72 provided inside the cross bar 66 has a
One end of the spring receiver 74 is inserted, and the other end of the spring receiver 74 grips the movable contact 68. Further, a contact spring 76 is inserted in a compressed state into the spring hole 72 of the cross bar 66, and one end of the contact spring 76 is fixed to the inner surface of one end of the spring receiver 74, and the other end is fixed to the spring hole 72 of the cross bar 66. It is fixed at 978. Therefore, the movable contact 68
is constantly urged toward the fixed contact 1B by the urging force of the contact spring 76.
そして、可動接触子６８とばね受け７４との間には熱良
導体から成る可動接触子弁え８０が装着されておシ、可
動接触子弁え８０下部には可動接触子６８に設けられた
保合孔８２と係合して装着状態を保持する保合突起８４
が設けられ、また可動接触子弁え８０上部にはばね受け
７４に設けられた保合突起８６と係合して装着状態を保
持する保合孔８８が設けられている。更に、可動接触子
弁え８０の上面には放熱フィン９ｏが形成されておシ、
両接点１８．７０の接触抵抗によシ生じる発熱は該放熱
フィン９０にて放熱される。兜に、可動接触子弁え８０
には指掛は部９２が設けられ、該指掛は部９２に指を掛
けて可動接触子弁え８０を第５図で示されるように接点
ばね７６の付勢力に抗して引き上げることによシ、可動
接触子６８の着脱交換を行うことができる。A movable contact valve 80 made of a good thermal conductor is installed between the movable contact 68 and the spring receiver 74, and a protection provided on the movable contact 68 is installed at the bottom of the movable contact valve 80. A retaining protrusion 84 that engages with the mating hole 82 to maintain the attached state
Further, a retaining hole 88 is provided in the upper part of the movable contact valve valve 80 to engage with a retaining protrusion 86 provided on the spring receiver 74 to maintain the attached state. Furthermore, a radiation fin 9o is formed on the upper surface of the movable contactor valve 80.
Heat generated due to contact resistance of both contacts 18 and 70 is radiated by the heat radiation fins 90. On the helmet, movable contact valve 80
A finger rest 92 is provided, and the finger rest can be used to hook the finger on the part 92 and pull up the movable contact valve valve 80 against the biasing force of the contact spring 76, as shown in FIG. Additionally, the movable contactor 68 can be attached and detached.
そして、これら係合突起８４、係合孔８８、放熱フィン
９０及び指掛は部９２を有する可動接触子弁え８０はア
ルミニウムダイキャストにて一体成形することが好適で
ｌ）、１個の部品で可動接触子６８を抑圧支持する機能
の他に１両液点１８．７０の放熱機能及び可動接触子６
８の着脱交換時の指掛は機能をも備えている。The movable contact valve 80 having the engaging protrusion 84, the engaging hole 88, the radiation fin 90, and the finger rest 92 is preferably integrally molded by aluminum die-casting. In addition to the function of suppressing and supporting the movable contact 68, it also has a heat dissipation function with a liquid point of 18.70 and a movable contact 6.
The finger rest for attaching and detaching 8 also has a function.
本発明の実施例は以上の構成から成シ、以下にその作用
を説明する。The embodiment of the present invention consists of the above configuration, and its operation will be explained below.
第２図において操作コイル５４に駆動電圧が印加される
と、この操作コイル５４が発生する磁束によシ固定鉄心
４０と可動鉄心５０との間に電磁吸引力が生じ、上記可
動鉄心５０が図示していない引外しばねの付勢力に抗し
て固定鉄心４０に吸引される。これに伴って可動鉄心５
０に連結されたクロスバー６６が固定鉄心４０側に移動
し、クロスバー６６に保持された可動接触子６８の可動
接点７０が固定接触子２０の固定接点１８と当接する。In FIG. 2, when a driving voltage is applied to the operating coil 54, an electromagnetic attraction force is generated between the fixed iron core 40 and the movable iron core 50 due to the magnetic flux generated by the operating coil 54, and the movable iron core 50 is It is attracted to the fixed core 40 against the biasing force of a tripping spring (not shown). Along with this, the movable iron core 5
0 moves toward the fixed core 40, and the movable contact 70 of the movable contact 68 held by the cross bar 66 comes into contact with the fixed contact 18 of the fixed contact 20.
このとき、可動接触子６８は接点ばね７６付勢力によっ
てばね受け７４及び可動接触子押え８０を介して固定接
触子２０に向けて押圧付勢され、第６図において実線で
示されるようにクロスバー６１５の船底型上端部６６ａ
にて位置決めされた状態にあるので、両接点１Ｂ、７０
の接点位置ずれを防止することができる。また、可動接
触子６８はその断面形状がコの字型をしているので機械
的強度が強く、可動接点７ｏが固定接点１８に当接した
際の変形を防止することができる。At this time, the movable contact 68 is urged toward the fixed contact 20 by the biasing force of the contact spring 76 via the spring receiver 74 and the movable contact holder 80, and as shown by the solid line in FIG. Bottom type upper end part 66a of 615
Since it is positioned at , both contacts 1B and 70
Contact position shift can be prevented. Furthermore, since the movable contact 68 has a U-shaped cross-section, it has strong mechanical strength and can prevent deformation when the movable contact 7o contacts the fixed contact 18.
そして、可動接点７０と固定接点１８との間の接点ギヤ
ラグよシも可動鉄心５０と固定鉄心４゜との間の鉄心ギ
ヤングの方が大きく形成されているので、鉄心の閉成時
にはクロスバー６６は上記接点の消液位置よシもさらに
固定鉄心４０［に移動する。このため、接点ばね７６が
圧縮変形し、とのばね圧力かばね受け７４及び可動接触
子持え８０を介して可動接触子６８に伝達され、所定の
接触圧力を得て接点１８．７０間を閉成する。このとき
、可動接触子６８は第６図において２点鎖線で示される
位置に保持されている。In addition, since the contact gear lug between the movable contact 70 and the fixed contact 18 and the core gear lugs between the movable core 50 and the fixed core 4° are formed larger, the crossbar 66 is formed when the core is closed. The liquid extinguishing position of the contact further moves to the fixed core 40. Therefore, the contact spring 76 is compressed and deformed, and the spring pressure is transmitted to the movable contact 68 via the spring receiver 74 and the movable contact holder 80, and a predetermined contact pressure is obtained to close the contact between the contacts 18 and 70. do. At this time, the movable contactor 68 is held at the position shown by the two-dot chain line in FIG.
このように両接点１８．７０が閉成状態にあるとき、両
接点１８．７０間の接触抵抗にょシ両接点１８．７０が
発熱することとなるが、このとき発生した熱は可動接触
子６８を経て熱良導体から成る可動接触子持え８０に伝
達され、該可動接触子持え８Ｇに設けられた放熱フィン
９０にて放熱されるので、両接点１８．７０の発熱によ
る消耗量を減少させることができる。When both contacts 18.70 are in the closed state in this way, both contacts 18.70 generate heat due to the contact resistance between both contacts 18.70, and the heat generated at this time is transferred to the movable contact 68. The heat is transmitted to the movable contact holder 80 made of a good thermal conductor, and is radiated by the heat radiation fins 90 provided on the movable contact holder 8G, so that the amount of wear due to heat generation of both contacts 18 and 70 can be reduced. can.
次に、操作コイル５４に印加されていた駆動電圧を取シ
除くと、固定鉄心４０と可動鉄心５０との間の電磁吸引
力は消滅し、クロスバー６６は図示していない引外しば
ねのばね付勢力によシ反固定鉄心側に移動されて各接点
１８．７０間が開離する。このような接点開離過程にお
いて、第６図で示されるように可動接触子６８の開成時
移動距離り、はクロスパー上部６６ａの船底深さＬ！
よりも短くなるように構成されているので、可動接触子
６８を実線で示されるような位置に正確に復帰させるこ
とができる。Next, when the drive voltage applied to the operating coil 54 is removed, the electromagnetic attractive force between the fixed core 40 and the movable core 50 disappears, and the crossbar 66 becomes a spring of a tripping spring (not shown). The contact points 18 and 70 are moved apart by the biasing force toward the opposite side of the fixed core. In such a contact opening process, as shown in FIG. 6, the moving distance of the movable contact 68 during opening is equal to the bottom depth L of the cross spar upper part 66a!
Since the movable contactor 68 is configured to be shorter than that shown in FIG.
このように、両接点１ｇ、７０が開離する際、可動接点
７Ｇと固定接点１８との間にアークが発生するが、この
アークは上記接点部分を包囲するグリッド６４内に引込
まれ、冷却分断されて消弧される。In this way, when both contacts 1g and 70 open, an arc is generated between the movable contact 7G and the fixed contact 18, but this arc is drawn into the grid 64 surrounding the contact area and is cooled and separated. The arc is extinguished.
可動接触子６８を着脱交換する場合には、可動接触子持
え８０の指掛は部９２に指を掛けて接点ばね７６の付勢
力に抗して第５図において矢印Ａ方向に可動接触子持え
を引き上げ、可動接触子持え８０の係合突起８４と可動
接触子６Ｂの係合孔８２との係合状態を解除する。そし
て、可動接触子６Ｂを矢印Ｂ方向に引き出すことによシ
容易に可動接触子６８を取シ外すことができる。可動接
触子６８を取シ付ける際には、以上の操作と逆の操作を
することによシ行うことができる。When attaching and detaching the movable contact 68, put your finger on the finger hook 92 of the movable contact holder 80 and move the movable contact holder in the direction of arrow A in FIG. 5 against the biasing force of the contact spring 76. is pulled up to release the engagement between the engagement protrusion 84 of the movable contact holder 80 and the engagement hole 82 of the movable contact 6B. Then, by pulling out the movable contact 6B in the direction of arrow B, the movable contact 68 can be easily removed. When attaching the movable contactor 68, it can be done by performing the above operation in reverse.
以上説明したように本発明によれば、可動接点を有しク
ロスバーの上端部に当接配置された可動接触子と、一端
がクロスバ−に設けられたばね孔に挿入され他端が可動
接触子を把持するばね受けと、クロスバ−のばね孔に挿
入され一端かばね受けに他端がクロスバ−に固定された
ストッパに係止される接点ばねと、可動接触子とげね受
けとの間に装着され可動接触子及びばね受けとの保合部
と指掛は部と放熱フィンとを含む熱良導体から成る可動
接触子持えと、を備えたことによシ、接点開閉作用によ
る可動接触子のがたつきを防止して可動接点の接点位置
ずれを防止することができ、可動接触子を容易に着脱交
換することができるとともに、両接点の接触抵抗による
発熱を放熱することができる。As explained above, according to the present invention, the movable contact has a movable contact and is placed in contact with the upper end of the crossbar, and the movable contact has one end inserted into a spring hole provided in the crossbar and the other end of the movable contact. A contact spring that is inserted into a spring hole of a cross bar and is latched to a stopper whose one end is fixed to the spring receiver and the other end to the cross bar, and the movable contact barb receiver. The movable contact holder is made of a good thermal conductor and includes a retaining part for the movable contact and the spring receiver, a finger rest part, and a heat radiation fin, thereby preventing the movable contact from wobbling due to the contact opening/closing action. It is possible to prevent the contact position of the movable contact from shifting, the movable contact can be easily attached and detached, and the heat generated by the contact resistance of both contacts can be dissipated.
第１図は従来の電磁接触器の可動接点機構の実例を示す
断面図、第２図は本発明に係る電磁接触器の可動接点機
構の好適な実施例を示す要部断面図、第３図は本発明に
係る電磁接触器の可動接点機構の外観斜視図、第４図は
第３図のＩＶ−ＩＶ断面図、第５図は第４図で示される
電磁接触器の可動接点機構において可動接触子の着脱状
態を示す説明図、第６図は第３図で示される電磁接触器
の可動接点機構において可動接触子の作動状態を示す説
明図である。
各図中同一部材には同一符号を付して、１２はペース、
１ｇは固定接点、２０は固定接触子、４０は固定鉄心、
５０は可動鉄心、６６はクロスパー、６６ａはクロスパ
ー上端部、６８は可動接触子、７Ｇ＃′ｉ可動接点、７
２拡ばね孔、７４はばね受け、７６は接点ばね、７８は
ストッパ、８゜は可動接触子弁え、８４は係合突起、８
８は係合孔、９０は放熱フィン、９２拡指掛は部である
。
代理人 弁理士 葛 野 信 −
（ｔｌか１名）
第 １ バ
第２図
第４図
２ ７４FIG. 1 is a cross-sectional view showing an actual example of a movable contact mechanism of a conventional electromagnetic contactor, FIG. 2 is a cross-sectional view of essential parts showing a preferred embodiment of a movable contact mechanism of a magnetic contactor according to the present invention, and FIG. is an external perspective view of the movable contact mechanism of the electromagnetic contactor according to the present invention, FIG. 4 is a sectional view taken along IV-IV in FIG. 3, and FIG. FIG. 6 is an explanatory diagram showing the operating state of the movable contact in the movable contact mechanism of the electromagnetic contactor shown in FIG. 3. The same members in each figure are given the same reference numerals, and 12 is a pace;
1g is a fixed contact, 20 is a fixed contact, 40 is a fixed core,
50 is a movable iron core, 66 is a cross spar, 66a is a cross spar upper end, 68 is a movable contact, 7G#'i movable contact, 7
2 expanded spring hole, 74 a spring receiver, 76 a contact spring, 78 a stopper, 8° a movable contact valve valve, 84 an engagement protrusion, 8
8 is an engagement hole, 90 is a radiation fin, and 92 is a finger expansion part. Agent Patent attorney Makoto Kuzuno - (TL or 1 person) 1st bar Figure 2 Figure 4 Figure 2 74
Claims (1)
在に設けられたクロスバーに担持され前記固定接点を開
閉する可動接点と、を含む電磁接触器の可動接点機構に
おいて、可動接点を有しクロスバーの上端部に当接配置
された可動接触子と、一端がクロスバ−に設けられたば
ね孔に挿入され他端が可動接触子を把持するばね受けと
、クロスバ−のばね孔に挿入され一端かばね受けに他端
がクロスバーに固定されたストッパに係止される接点ば
ねと、可動接触子とげね受けとの間に装着され可動接触
子及びばね受けとの保合部と指掛は部と放熱フィンとを
含む熱良導体から成る可動接触子弁えと、を備えた電磁
接触器の可動接点機構。A movable contact mechanism of an electromagnetic contactor including a main circuit fixed contact fixed to a base, and a movable contact supported by a crossbar slidably provided on the base to open and close the fixed contact. A movable contact is placed in contact with the upper end of the crossbar, a spring receiver has one end inserted into a spring hole provided in the crossbar and the other end grips the movable contact, and a spring receiver inserted into the spring hole of the crossbar. A contact spring whose one end is latched to a stopper whose other end is fixed to a crossbar, and a movable contact and a spring holder are installed between the movable contact and the spring holder, and a retaining part and a finger rest are attached to the spring holder. A movable contact mechanism of an electromagnetic contactor, comprising: a movable contact valve valve made of a good thermal conductor including a heat dissipation fin and a heat dissipation fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12648481A JPS5828133A (en) | 1981-08-12 | 1981-08-12 | Movable contact mechanism for electromagnetic contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12648481A JPS5828133A (en) | 1981-08-12 | 1981-08-12 | Movable contact mechanism for electromagnetic contactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5828133A true JPS5828133A (en) | 1983-02-19 |
| JPH0113186B2 JPH0113186B2 (en) | 1989-03-03 |
Family
ID=14936344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12648481A Granted JPS5828133A (en) | 1981-08-12 | 1981-08-12 | Movable contact mechanism for electromagnetic contactor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5828133A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019083174A (en) * | 2017-10-31 | 2019-05-30 | オムロン株式会社 | Electromagnetic relay |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4420170Y1 (en) * | 1966-12-12 | 1969-08-29 | ||
| JPS4844513A (en) * | 1971-10-11 | 1973-06-26 | ||
| JPS5013965U (en) * | 1973-06-01 | 1975-02-13 |
-
1981
- 1981-08-12 JP JP12648481A patent/JPS5828133A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4420170Y1 (en) * | 1966-12-12 | 1969-08-29 | ||
| JPS4844513A (en) * | 1971-10-11 | 1973-06-26 | ||
| JPS5013965U (en) * | 1973-06-01 | 1975-02-13 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019083174A (en) * | 2017-10-31 | 2019-05-30 | オムロン株式会社 | Electromagnetic relay |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0113186B2 (en) | 1989-03-03 |
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