JP3903713B2 - Electromagnetic relay - Google Patents

Electromagnetic relay Download PDF

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Publication number
JP3903713B2
JP3903713B2 JP2000379117A JP2000379117A JP3903713B2 JP 3903713 B2 JP3903713 B2 JP 3903713B2 JP 2000379117 A JP2000379117 A JP 2000379117A JP 2000379117 A JP2000379117 A JP 2000379117A JP 3903713 B2 JP3903713 B2 JP 3903713B2
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Japan
Prior art keywords
elastic member
leaf spring
movable
contact
iron piece
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JP2000379117A
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JP2002184290A (en
Inventor
博久 鈴木
康一 塚田
浩治 川口
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Denso Corp
Denso Electronics Corp
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Denso Corp
Anden Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
    • H01H50/305—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature damping vibration due to functional movement of armature

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  • Electromagnets (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、電気回路の開閉を行う電磁継電器に関するもので、車両用の電磁継電器に適用して有効である。
【０００２】
【従来の技術】
図４は従来の電磁継電器（以下、リレーと呼ぶ。）を示すもので、コイル１３０への通電時に固定鉄心１４０側に吸引される可動鉄片１２２が、かしめ部１２２ａをかしめて板バネ１２１に一体化されている。また、板バネ１２１と可動鉄片１２２との間に板状のゴム製の弾性部材１６０が配置され、この弾性部材１６０は板バネ１２１の弾性力により可動鉄片１２２側に押し付けられている。
【０００３】
そして、コイル１３０への通電が遮断されて可動接点１２０のかしめ部１２０ａがストッパ１５０に衝突した際に、板バネ１２１の振動を弾性部材１６０の圧縮変形により抑制して、板バネ１２１の振動に起因する音を低減するようにしている。（実開平２−８７３５１号公報、実開平５−２７９４２号公報、特開平５−１７４６８４号公報等参照）
【０００４】
【発明が解決しようとする課題】
しかしながら、上記した従来のリレーでは、ゴム製の弾性部材１６０は板バネ１２１の弾性力を受けて圧縮変形するが、ゴムの圧縮方向のばね定数は大きいため弾性部材１６０が変形しにくく、従って、板バネ１２１におけるかしめ部１２２ａから可動接点１２０に至る部位が反ってしまい、可動鉄片１２２との間に角度θの傾きが発生してしまう。
【０００５】
そして、この板バネ１２１の反りにより、コイル１３０に通電した時に可動接点１２０が傾いた状態で固定接点１１０に当接する。そのため、両接点１１０、１２０は点接触に近い状態になって接触面積が小さくなり、ひいてはその接触部が発熱しやすくなり、耐久性が低下してしまうという問題があった。
【０００６】
また、弾性部材１６０の板厚のばらつきにより傾き角度θが大きくなった場合、コイル１３０に通電しても可動接点１２０が固定接点１１０に当接できない恐れがあった。
【０００７】
本発明は上記の点に鑑みてなされたもので、弾性部材による音の低減効果を確保しつつ、耐久性向上および作動不良防止を図ることを目的とする。
【０００８】
【課題を解決するための手段】
上記目的を達成するため、請求項１に記載の発明では、通電時に電磁力を発生する電磁コイル（１３０）と、電磁コイル（１３０）内に配置されて磁路を形成する固定鉄心（１４０）と、固定鉄心（１４０）に対向して配置され、電磁コイル（１３０）の電磁力により固定鉄心（１４０）側に吸引される可動鉄片（１２２）と、可動鉄片（１２２）を保持すると共に可動鉄片（１２２）を固定鉄心（１４０）から離れる向きに付勢する板バネ（１２１）と、板バネ（１２１）に装着された可動接点（１２０）と、可動接点（１２０）に対向して配置され、電磁コイル（１３０）への通電時に可動接点（１２０）が当接する固定接点（１１０）とを有する電磁継電器において、可動鉄片（１２２）に装着されて板バネ（１２１）が当接する弾性部材（１６０）を備え、板バネ（１２１）には、可動鉄片（１２２）側に突出する突起部（１２１ａ）が形成されており、可動鉄片（１２２）には、弾性部材（１６０）が固定鉄心（１４０）側に変形するのを許容する逃がし部（１２２ｃ）が形成されており、板バネ（１２１）の突起部（１２１ａ）が弾性部材（１６０）に当接し、弾性部材（１６０）が板バネ（１２１）の弾性力により固定鉄心（１４０）側の面の外縁部で可動鉄片（１２２）に支持され、可動鉄片（１２２）に逃がし部（１２２ｃ）が形成されていることにより、弾性部材（１６０）が固定鉄心（１４０）側に剪断変形するようになっていることを特徴とする。
【０００９】
これによると、コイルへの通電が遮断された際、板バネの突起部が弾性部材に当接しているため、弾性部材の制振効果により板バネの振動が低減され、ひいては板バネの振動に起因する音が低減される。
【００１０】
また、弾性部材は剪断変形するためそのばね定数が小さくなって板バネの反りが小さくなり、コイルに通電した時に可動接点と固定接点は面接触状態になって所定の接触面積が確保され、従って接触部の発熱による耐久性低下を防ぐことができる。また、弾性部材（１６０）の板厚のばらつきも弾性部材の剪断変形により吸収されるため、コイルに通電しても可動接点が固定接点に当接できないという事態も確実に防止できる。
【００１２】
なお、上記各手段の括弧内の符号は、後述する実施形態に記載の具体的手段との対応関係を示すものである。
【００１３】
【発明の実施の形態】
図１ないし図３は本発明になる電磁継電器（リレー）の一実施形態を示すもので、図１はリレー全体の正面図、図２は板バネ１２１および可動鉄片１２２を図１のＡ方向から見たＡ矢視図、図３は図１のＢ部の拡大図である。
【００１４】
図１および図２において、１１０は固定接点であり、１２０は固定接点１１０に対して接離する可動接点である。この可動接点１２０はかしめ部１２０ａをかしめて板バネ１２１の先端部に装着されている。
【００１５】
通電時に電磁力を発生する電磁コイル１３０（以下、コイルという）内には、磁路を形成する固定鉄心１４０が配置されている。そして、コイル１３０への通電時に固定鉄心１４０側に吸引される可動鉄片１２２が、その３箇所のかしめ部１２２ａをかしめて板バネ１２１に一体化されている。
【００１６】
板バネ１２１は、可動接点１２０が固定接点１１０から離れる向きの付勢力、および可動鉄片１２２が固定鉄心１４０から離れる向きの付勢力を発生すると共に、電気回路の一部を兼ねる。
【００１７】
ヨーク１４１は、コイル１３０により誘起された磁束の磁路を構成するとともに、コイル１３０及び板バネ１２１を保持する。樹脂製のベース１４２には、ヨーク１４１及び固定接点１１０が設けられた第１接点ターミナル１４３、板バネ１２１を介して可動接点１２０と電気的に繋がった第２接点ターミナル１４４、及びコイル１３０に電力を供給するコイルターミナル１４５等が挿入固定されている。１４６はコイル１３０等を覆うカバーである。さらに、可動接点１２０のかしめ部１２０ａに対向する位置には金属製のストッパ１５０が配置され、このストッパ１５０はベース１４２に挿入固定されている。
【００１８】
そして、コイル１３０に通電すると、その電磁吸引力により可動鉄片１２２が固定鉄心１４０に吸引され、可動接点１２０が固定接点１１０に当接して、電気回路が閉じるようになっている。一方、コイル１３０への通電が遮断されると、板バネ１２１の弾性力により可動接点１２０が固定接点１１０から離され、電気回路が開くようになっている。
【００１９】
次に、本実施形態の特徴点について説明する。図３に示すように、板バネ１２１と可動鉄片１２２との間には、弾性部材１６０が配置されている。この弾性部材１６０は樹脂にて円盤状（円形平板状）に形成されており、より詳細には、厚さが０、５ｍｍ程度で、弾性および耐熱性に富むゴム（例えばフッ素ゴム）よりなる。
【００２０】
板バネ１２１には、可動接点１２０取付部とかしめ部１２２ａ位置の中間部位に、可動鉄片１２２側に突出する突起部１２１ａが形成されている。
【００２１】
一方、可動鉄片１２２には、突起部１２１ａに対向する位置に円柱状の凹部１２２ｂが形成されている。この凹部１２２ｂは弾性部材１６０よりも僅かに大径で、かつ弾性部材１６０の厚さと同程度の深さに形成されている。また、凹部１２２ｂの底部には、弾性部材１６０よりも小径の円柱状の逃がし部１２２ｃが凹部１２２ｂと同心に形成されている。
【００２２】
なお、凹部１２２ｂ内に弾性部材１６０を収納した後に板バネ１２１と可動鉄片１２２とを一体化することにより、突起部１２１ａが弾性部材１６０の略中心部に当接し、弾性部材１６０は板バネ１２１の弾性力により凹部１２２ｂの底部側に押し付けられて凹部１２２ｂ内に保持される。
【００２３】
そして、板バネ１２１の弾性力により弾性部材１６０の略中心部が押され、この際、逃がし部１２２ｃがあるため弾性部材１６０の略中心部が固定鉄心１４０側に剪断変形可能になっている。この時、弾性部材１６０の剪断変形時のばね定数は、板バネ１２１のばね定数の５分の１以下の設定が望ましい。
【００２４】
上記構成の本実施形態によれば、コイル１３０への通電が遮断されて可動接点１２０のかしめ部１２０ａがストッパ１５０に衝突した際、板バネ１２１の突起部１２１ａが弾性部材１６０に当接しているため、弾性部材１６０の制振効果により板バネ１２１の振動が低減され、ひいては板バネ１２１の振動に起因する音が低減される。
【００２５】
また、弾性部材１６０における固定鉄心１４０側の面の略中心部に対向する位置に逃がし部１２２ｃを設けて、弾性部材１６０における固定鉄心１４０側の面の外縁部で弾性部材１６０を支持しているため、板バネ１２１の弾性力を受けて弾性部材１６０はその略中心部が固定鉄心１４０側に変形する。
【００２６】
そして、この変形は剪断変形であるためそのばね定数は圧縮変形時のばね定数よりも小さくなって弾性部材１６０が変形しやすくなる。従って、板バネ１２１におけるかしめ部１２２ａから可動接点１２０に至る部位の反りが小さくなり、可動鉄片１２２との間の傾き角度θも小さくなる。
【００２７】
このように板バネ１２１の反りが小さくなると、コイル１３０に通電した時に可動接点１２０と固定接点１１０は中心付近で面接触状態になって所定の接触面積が確保され、従って接触部の発熱による耐久性低下を防ぐことができる。また、コイル１３０に通電しても可動接点１２０が固定接点１１０に当接できないという事態も確実に防止できる。
【００２８】
また、弾性部材１６０の厚さや逃がし部１２２ｃの径を変更することにより、弾性部材１６０のばね定数を容易に調整可能である。
【００２９】
また、弾性部材１６０を円形にすることにより、弾性部材１６０の組付け時の方向性をなくして、その組み付けの簡素化が可能である。
【００３０】
（他の実施形態）
上記実施形態ではゴム製の弾性部材１６０を用いたが、スポンジ等の発泡弾性樹脂よりなる弾性部材を用いてもよい。
【００３１】
また、可動鉄片１２２の逃がし部１２２ｃは、可動鉄片１２２における固定鉄心１４０と対向する側の面まで貫通させてもよい。
【００３２】
さらに、弾性部材１６０、凹部１２２ｂ、および逃がし部１２２ｃは、円盤状または円柱状でなくてもよい。すなわち、板バネ１２１の弾性力が弾性部材１６０に作用した際に、弾性部材１６０が剪断変形可能であればよい。
【００３３】
また、ストッパ１５０が設置された位置に、ストッパ１５０の代わりに第２の固定接点を設けた形式のリレーにも、本発明は適用可能である。
【図面の簡単な説明】
【図１】本発明になる電磁継電器の一実施形態を示す正面図である。
【図２】図１の板バネ１２１および可動鉄片１２２を図１のＡ方向から見たＡ矢視図である。
【図３】図１のＢ部の拡大図である。
【図４】従来の電磁継電器を示す正面図である。
【符号の説明】
１１０…固定接点、１２０…可動接点、１２１…板バネ、１２２…可動鉄片、１３０…電磁コイル、１４０…固定鉄心、１６０…弾性部材。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electromagnetic relay that opens and closes an electric circuit, and is effective when applied to an electromagnetic relay for a vehicle.
[0002]
[Prior art]
FIG. 4 shows a conventional electromagnetic relay (hereinafter referred to as a relay). A movable iron piece 122 attracted to the fixed iron core 140 side when the coil 130 is energized is integrated with a leaf spring 121 by caulking a caulking portion 122a. It has become. A plate-shaped rubber elastic member 160 is disposed between the plate spring 121 and the movable iron piece 122, and the elastic member 160 is pressed against the movable iron piece 122 side by the elastic force of the plate spring 121.
[0003]
When the energization of the coil 130 is interrupted and the caulking portion 120a of the movable contact 120 collides with the stopper 150, the vibration of the leaf spring 121 is suppressed by the compression deformation of the elastic member 160, and the vibration of the leaf spring 121 is suppressed. The resulting sound is reduced. (See Japanese Utility Model Laid-Open No. 2-87351, Japanese Utility Model Laid-Open No. 5-27942, Japanese Patent Laid-Open No. 5-174684, etc.)
[0004]
[Problems to be solved by the invention]
However, in the above-described conventional relay, the elastic member 160 made of rubber is compressed and deformed by receiving the elastic force of the leaf spring 121. However, since the spring constant in the compression direction of the rubber is large, the elastic member 160 is not easily deformed. A portion of the leaf spring 121 from the caulking portion 122 a to the movable contact 120 is warped, and an inclination of an angle θ is generated between the leaf spring 121 and the movable iron piece 122.
[0005]
Then, due to the warpage of the leaf spring 121, the movable contact 120 abuts against the fixed contact 110 while being inclined when the coil 130 is energized. For this reason, both the contacts 110 and 120 are in a state close to point contact, and the contact area is reduced. As a result, the contact portion is likely to generate heat, resulting in a decrease in durability.
[0006]
In addition, when the inclination angle θ is increased due to variations in the plate thickness of the elastic member 160, there is a possibility that the movable contact 120 cannot contact the fixed contact 110 even when the coil 130 is energized.
[0007]
The present invention has been made in view of the above points, and an object of the present invention is to improve durability and prevent malfunctions while ensuring a sound reduction effect by an elastic member.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, an electromagnetic coil (130) that generates an electromagnetic force when energized, and a fixed iron core (140) that is disposed in the electromagnetic coil (130) and forms a magnetic path. And a movable iron piece (122) disposed opposite to the fixed iron core (140) and attracted to the fixed iron core (140) side by the electromagnetic force of the electromagnetic coil (130), and holding and moving the movable iron piece (122) A leaf spring (121) that urges the iron piece (122) away from the fixed iron core (140), a movable contact (120) mounted on the leaf spring (121), and a movable contact (120) are arranged opposite to each other. In the electromagnetic relay having the fixed contact (110) with which the movable contact (120) abuts when the electromagnetic coil (130) is energized, the elastic is attached to the movable iron piece (122) and the leaf spring (121) abuts. Comprising a timber (160), the leaf spring (121), and projecting portions projecting to the movable iron piece (122) side (121a) is formed, the movable iron piece (122), the elastic member (160) fixed An escape portion (122c) that allows deformation to the iron core (140) side is formed, the protrusion (121a) of the leaf spring (121) abuts on the elastic member (160), and the elastic member (160) The elastic force of the leaf spring (121) is supported by the movable iron piece (122) at the outer edge portion of the surface on the fixed iron core (140) side, and the relief portion (122c) is formed on the movable iron piece (122), thereby being elastic. characterized in that the member (160) is adapted to shear the fixed iron core (140) side.
[0009]
According to this, since the projection of the leaf spring is in contact with the elastic member when the current to the coil is interrupted, the vibration of the leaf spring is reduced by the vibration damping effect of the elastic member, and consequently the vibration of the leaf spring is reduced. The resulting sound is reduced.
[0010]
In addition, since the elastic member undergoes shear deformation, its spring constant is reduced and the warpage of the leaf spring is reduced, and when the coil is energized, the movable contact and the fixed contact are in a surface contact state and a predetermined contact area is ensured. It is possible to prevent a decrease in durability due to heat generation at the contact portion. In addition, since the variation in the plate thickness of the elastic member (160) is absorbed by the shear deformation of the elastic member, it is possible to reliably prevent a situation in which the movable contact cannot contact the fixed contact even when the coil is energized.
[0012]
In addition, the code | symbol in the bracket | parenthesis of each said means shows the correspondence with the specific means as described in embodiment mentioned later.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
1 to 3 show an embodiment of an electromagnetic relay (relay) according to the present invention. FIG. 1 is a front view of the entire relay, and FIG. 2 shows a leaf spring 121 and a movable iron piece 122 from the direction A in FIG. FIG. 3 is an enlarged view of a portion B in FIG. 1.
[0014]
In FIG. 1 and FIG. 2, 110 is a fixed contact, and 120 is a movable contact that contacts and separates from the fixed contact 110. The movable contact 120 is attached to the distal end portion of the leaf spring 121 by caulking the caulking portion 120a.
[0015]
A fixed iron core 140 that forms a magnetic path is disposed in an electromagnetic coil 130 (hereinafter referred to as a coil) that generates an electromagnetic force when energized. And the movable iron piece 122 attracted | sucked to the fixed iron core 140 side at the time of electricity supply to the coil 130 is integrated with the leaf | plate spring 121 by crimping the three crimping parts 122a.
[0016]
The leaf spring 121 generates an urging force in a direction in which the movable contact 120 is separated from the fixed contact 110 and an urging force in a direction in which the movable iron piece 122 is separated from the fixed iron core 140, and also serves as a part of an electric circuit.
[0017]
The yoke 141 constitutes a magnetic path of magnetic flux induced by the coil 130 and holds the coil 130 and the leaf spring 121. The base 142 made of resin has a first contact terminal 143 provided with a yoke 141 and a fixed contact 110, a second contact terminal 144 electrically connected to the movable contact 120 via a leaf spring 121, and power to the coil 130. A coil terminal 145 and the like for supplying are fixedly inserted. A cover 146 covers the coil 130 and the like. Further, a metal stopper 150 is disposed at a position facing the caulking portion 120 a of the movable contact 120, and this stopper 150 is inserted and fixed to the base 142.
[0018]
When the coil 130 is energized, the movable iron piece 122 is attracted to the fixed iron core 140 by the electromagnetic attraction force, the movable contact 120 comes into contact with the fixed contact 110, and the electric circuit is closed. On the other hand, when the energization to the coil 130 is cut off, the movable contact 120 is separated from the fixed contact 110 by the elastic force of the leaf spring 121 so that the electric circuit is opened.
[0019]
Next, features of the present embodiment will be described. As shown in FIG. 3, an elastic member 160 is disposed between the leaf spring 121 and the movable iron piece 122. The elastic member 160 is formed of a resin in a disk shape (circular flat plate shape). More specifically, the elastic member 160 is made of rubber (for example, fluororubber) having a thickness of about 0 to 5 mm and rich in elasticity and heat resistance.
[0020]
The leaf spring 121 has a protrusion 121a that protrudes toward the movable iron piece 122 at an intermediate position between the movable contact 120 mounting portion and the caulking portion 122a.
[0021]
On the other hand, the movable iron piece 122 is formed with a cylindrical recess 122b at a position facing the protrusion 121a. The recess 122b is slightly larger in diameter than the elastic member 160 and is formed to a depth similar to the thickness of the elastic member 160. In addition, a cylindrical escape portion 122c having a smaller diameter than the elastic member 160 is formed concentrically with the recess 122b at the bottom of the recess 122b.
[0022]
In addition, by integrating the leaf spring 121 and the movable iron piece 122 after the elastic member 160 is accommodated in the recess 122b, the protrusion 121a contacts the substantially central portion of the elastic member 160, and the elastic member 160 is the leaf spring 121. It is pressed against the bottom side of the recess 122b by the elastic force and is held in the recess 122b.
[0023]
Then, the substantially central portion of the elastic member 160 is pushed by the elastic force of the leaf spring 121. At this time, since there is the relief portion 122c, the substantially central portion of the elastic member 160 can be shear-deformed toward the fixed iron core 140 side. At this time, the spring constant at the time of the shear deformation of the elastic member 160 is desirably set to 1/5 or less of the spring constant of the leaf spring 121.
[0024]
According to the present embodiment having the above configuration, when the energization of the coil 130 is interrupted and the caulking portion 120a of the movable contact 120 collides with the stopper 150, the protrusion 121a of the leaf spring 121 is in contact with the elastic member 160. For this reason, the vibration of the leaf spring 121 is reduced by the vibration damping effect of the elastic member 160, and thus the sound due to the vibration of the leaf spring 121 is reduced.
[0025]
Further, a relief portion 122c is provided at a position facing the substantially central portion of the surface of the elastic member 160 on the fixed iron core 140 side, and the elastic member 160 is supported by the outer edge portion of the surface of the elastic member 160 on the fixed iron core 140 side. Therefore, the elastic member 160 receives the elastic force of the leaf spring 121, and its substantially central portion is deformed to the fixed iron core 140 side.
[0026]
Since this deformation is a shear deformation, the spring constant becomes smaller than the spring constant at the time of compressive deformation, and the elastic member 160 is easily deformed. Accordingly, the warpage of the portion of the leaf spring 121 from the caulking portion 122a to the movable contact 120 is reduced, and the inclination angle θ with the movable iron piece 122 is also reduced.
[0027]
When the warpage of the leaf spring 121 is reduced in this way, when the coil 130 is energized, the movable contact 120 and the fixed contact 110 are in a surface contact state near the center, and a predetermined contact area is secured, so that durability due to heat generation at the contact portion is secured. Deterioration can be prevented. In addition, even when the coil 130 is energized, the situation where the movable contact 120 cannot contact the fixed contact 110 can be reliably prevented.
[0028]
Further, the spring constant of the elastic member 160 can be easily adjusted by changing the thickness of the elastic member 160 and the diameter of the relief portion 122c.
[0029]
Further, by making the elastic member 160 circular, the directionality when the elastic member 160 is assembled can be eliminated, and the assembly can be simplified.
[0030]
(Other embodiments)
In the above embodiment, the elastic member 160 made of rubber is used, but an elastic member made of foamed elastic resin such as sponge may be used.
[0031]
Further, the escape portion 122c of the movable iron piece 122 may be penetrated to the surface of the movable iron piece 122 facing the fixed iron core 140.
[0032]
Furthermore, the elastic member 160, the recessed part 122b, and the escape part 122c do not need to be disk-shaped or cylindrical. That is, it is only necessary that the elastic member 160 can be subjected to shear deformation when the elastic force of the leaf spring 121 acts on the elastic member 160.
[0033]
The present invention can also be applied to a relay in which a second fixed contact is provided in place of the stopper 150 at a position where the stopper 150 is installed.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of an electromagnetic relay according to the present invention.
2 is a view taken in the direction of an arrow A when the leaf spring 121 and the movable iron piece 122 of FIG. 1 are viewed from the direction A of FIG.
FIG. 3 is an enlarged view of a portion B in FIG.
FIG. 4 is a front view showing a conventional electromagnetic relay.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 110 ... Fixed contact, 120 ... Movable contact, 121 ... Leaf spring, 122 ... Movable iron piece, 130 ... Electromagnetic coil, 140 ... Fixed iron core, 160 ... Elastic member.

Claims (1)

通電時に電磁力を発生する電磁コイル（１３０）と、
前記電磁コイル（１３０）内に配置されて磁路を形成する固定鉄心（１４０）と、
前記固定鉄心（１４０）に対向して配置され、前記電磁コイル（１３０）の電磁力により前記固定鉄心（１４０）側に吸引される可動鉄片（１２２）と、
前記可動鉄片（１２２）を保持すると共に前記可動鉄片（１２２）を前記固定鉄心（１４０）から離れる向きに付勢する板バネ（１２１）と、
前記板バネ（１２１）に装着された可動接点（１２０）と、
前記可動接点（１２０）に対向して配置され、前記電磁コイル（１３０）への通電時に前記可動接点（１２０）が当接する固定接点（１１０）とを有する電磁継電器において、
前記可動鉄片（１２２）に装着されて前記板バネ（１２１）が当接する弾性部材（１６０）を備え、
前記板バネ（１２１）には、前記可動鉄片（１２２）側に突出する突起部（１２１ａ）が形成されており、
前記可動鉄片（１２２）には、前記弾性部材（１６０）が前記固定鉄心（１４０）側に変形するのを許容する逃がし部（１２２ｃ）が形成されており、
前記板バネ（１２１）の前記突起部（１２１ａ）が前記弾性部材（１６０）に当接し、前記弾性部材（１６０）が前記板バネ（１２１）の弾性力により前記固定鉄心（１４０）側の面の外縁部で前記可動鉄片（１２２）に支持され、前記可動鉄片（１２２）に前記逃がし部（１２２ｃ）が形成されていることにより、前記弾性部材（１６０）が前記固定鉄心（１４０）側に剪断変形するようになっていることを特徴とする電磁継電器。An electromagnetic coil (130) that generates electromagnetic force when energized;
A stationary iron core (140) disposed within the electromagnetic coil (130) to form a magnetic path;
A movable iron piece (122) disposed facing the fixed iron core (140) and attracted to the fixed iron core (140) side by the electromagnetic force of the electromagnetic coil (130);
A leaf spring (121) that holds the movable iron piece (122) and biases the movable iron piece (122) away from the fixed iron core (140);
A movable contact (120) mounted on the leaf spring (121);
An electromagnetic relay having a fixed contact (110) disposed opposite to the movable contact (120) and abutted on the movable contact (120) when the electromagnetic coil (130) is energized,
An elastic member (160) attached to the movable iron piece (122) and abutted against the leaf spring (121);
The leaf spring (121) is formed with a protrusion (121a) protruding toward the movable iron piece (122).
The movable iron piece (122) is provided with a relief portion (122c) that allows the elastic member (160) to be deformed toward the fixed iron core (140).
The protrusion (121a) of the leaf spring (121) abuts on the elastic member (160), and the elastic member (160) is a surface on the fixed iron core (140) side by the elastic force of the leaf spring (121). Is supported by the movable iron piece (122) at the outer edge portion, and the relief portion (122c) is formed on the movable iron piece (122), so that the elastic member (160) is moved to the fixed iron core (140) side. An electromagnetic relay characterized by being deformed in shear.
JP2000379117A 2000-12-13 2000-12-13 Electromagnetic relay Expired - Fee Related JP3903713B2 (en)

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Publication number Priority date Publication date Assignee Title
US6891705B2 (en) 2002-02-08 2005-05-10 Tyco Electronics Corporation Smart solid state relay
US6794966B2 (en) * 2002-07-01 2004-09-21 Tyco Electronics Corporation Low noise relay
KR100637678B1 (en) 2004-12-30 2006-10-26 한국오므론전장주식회사 Anti-noise Relay Structure
KR100676346B1 (en) 2005-04-07 2007-02-02 한국오므론전장주식회사 Anti-noise Relay Structure
JP4591224B2 (en) * 2005-06-13 2010-12-01 アンデン株式会社 Electromagnetic relay
JP4508091B2 (en) * 2005-11-25 2010-07-21 パナソニック電工株式会社 Electromagnetic switchgear
EP1953784B1 (en) 2005-11-25 2010-10-20 Panasonic Electric Works Co., Ltd. Electromagnetic switching device
JP6624384B2 (en) * 2016-02-05 2019-12-25 パナソニックＩｐマネジメント株式会社 Electromagnetic relay
JP6597378B2 (en) * 2016-02-19 2019-10-30 アンデン株式会社 Electromagnetic relay
EP3836170B1 (en) * 2019-12-11 2024-03-20 TE Connectivity Austria GmbH Spring assembly for biasing an armature of a switching device, and switching device comprising such spring assembly

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