JP6319684B2

JP6319684B2 - Electromagnetic relay

Info

Publication number: JP6319684B2
Application number: JP2014002903A
Authority: JP
Inventors: 博文深澤; 司西村; 山形　勝利; 勝利山形
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2014-01-10
Filing date: 2014-01-10
Publication date: 2018-05-09
Anticipated expiration: 2034-01-10
Also published as: JP2015133191A

Description

本発明は、一般に電磁継電器に関し、より詳細には、ヒンジ形の電磁継電器に関する。 The present invention relates generally to electromagnetic relays, and more particularly to hinged electromagnetic relays.

従来から、可動ばねの可動接点が固定接点から離れた後に可動ばねの移動を規制する構成を備える電磁継電器が知られている（例えば特許文献１参照）。 2. Description of the Related Art Conventionally, there has been known an electromagnetic relay having a configuration for restricting movement of a movable spring after the movable contact of the movable spring is separated from the fixed contact (see, for example, Patent Document 1).

特許文献１に記載された電磁継電器は、ボビンの鍔部に一体に形成された樹脂製のストッパによって可動ばねの移動を規制する。ストッパは、ボビンに対して固定されている。特許文献１に記載された電磁継電器では、ストッパに可動ばねが当接することによって、可動ばねの移動が規制される。 The electromagnetic relay described in Patent Document 1 regulates the movement of the movable spring by a resin stopper formed integrally with the bobbin collar. The stopper is fixed to the bobbin. In the electromagnetic relay described in Patent Document 1, the movement of the movable spring is restricted by the movable spring coming into contact with the stopper.

実開平２−１１０１５４号公報Japanese Utility Model Publication No. 2-110154

しかしながら、従来の電磁継電器では、ボビンに固定されている復帰ストッパに対して可動ばねが勢いよく衝突し、復帰ストッパが可動ばねの復帰力を受け止めるため、可動ばねが復帰ストッパに衝突したときに発生する衝突音が大きいという問題があった。 However, in the conventional electromagnetic relay, the movable spring collides with the return stopper fixed to the bobbin vigorously, and the return stopper receives the return force of the movable spring. There was a problem that the sound of collision was loud.

本発明は上記の点に鑑みて為された発明であり、本発明の目的は、可動ばねが復帰ストッパに衝突したときの衝突音を低減させることができる電磁継電器を提供することにある。 The present invention has been made in view of the above points, and an object of the present invention is to provide an electromagnetic relay capable of reducing a collision sound when a movable spring collides with a return stopper.

本発明の電磁継電器は、電磁石ブロックと、固定接点と、可動ばねと、復帰ストッパとを備える。前記電磁石ブロックは、励磁コイルを含む。前記可動ばねは、可動部と、固定部とを含む。前記可動部は、前記固定接点に接離する。前記固定部は、前記電磁石ブロックに固定される。前記可動ばねは、前記励磁コイルへ通電されたときに磁力によって前記固定部を支点として前記可動部が変形して前記固定接点に接触し、前記励磁コイルへの通電が遮断されたときに復帰力によって前記可動部が前記固定接点から離れる。前記復帰ストッパは、前記励磁コイルへの通電が遮断されたときに前記可動部が前記固定接点から離れた後における前記可動部の移動を抑制する。前記復帰ストッパは、基部と、延設部と、当接部とを含む。前記基部は、前記電磁石ブロックに固定される。前記延設部は、前記基部から延びて設けられている。前記当接部は、前記延設部の先端に設けられ、前記可動部が当接する。前記当接部は、第１の曲面部と、第２の曲面部とを含む。前記第１の曲面部は、前記延設部の先端に設けられ、前記可動部が前記固定接点から離れる方向に凸となる曲面を有する。前記第２の曲面部は、前記第１の曲面部の先端に設けられ、前記可動部が前記固定接点に近づく方向に凸となる曲面を有する。前記当接部は、前記当接部に前記可動部が当接すると、前記可動部が前記固定接点から離れる方向に沿って、弾性によって撓む。
本発明の電磁継電器は、電磁石ブロックと、固定接点と、可動ばねと、復帰ストッパとを備える。前記電磁石ブロックは、励磁コイルと、ボビンと、鉄芯とを含む。前記ボビンは、軸方向に挿通孔が形成された筒部を有し、前記筒部に前記励磁コイルが巻回される。前記鉄芯は、前記ボビンの前記挿通孔に挿通される。前記可動ばねは、可動部と、固定部とを含む。前記可動部は、前記固定接点に接離する。前記固定部は、前記電磁石ブロックに固定される。前記可動ばねは、前記励磁コイルへ通電されたときに磁力によって前記固定部を支点として前記可動部が変形して前記固定接点に接触し、前記励磁コイルへの通電が遮断されたときに復帰力によって前記可動部が前記固定接点から離れる。前記復帰ストッパは、前記励磁コイルへの通電が遮断されたときに前記可動部が前記固定接点から離れた後における前記可動部の移動を抑制する。前記鉄芯は、柱状の軸部と、前記軸部の一端に設けられた鍔部とを含む。前記復帰ストッパは、基部と、延設部と、当接部とを含む。前記基部は、前記鍔部と前記ボビンとの間に挟持されて前記電磁石ブロックに固定される。前記延設部は、前記基部から延びて設けられている。前記当接部は、前記延設部の先端に設けられ、前記可動部が当接する。前記当接部は、前記当接部に前記可動部が当接すると、前記可動部が前記固定接点から離れる方向に沿って、弾性によって撓む。
好ましくは、この電磁継電器において、前記基部には、前記軸部が挿通される貫通孔が形成されている。 The electromagnetic relay of the present invention includes an electromagnet block, a fixed contact, a movable spring, and a return stopper. The electromagnet block includes an exciting coil. The movable spring includes a movable part and a fixed part. The movable part contacts and separates from the fixed contact. The fixing portion is fixed to the electromagnet block. The movable spring is configured such that when the excitation coil is energized, the movable portion is deformed with the fixed portion as a fulcrum by a magnetic force to contact the fixed contact, and when the energization to the excitation coil is interrupted, a return force is obtained. To move the movable part away from the fixed contact. The return stopper suppresses the movement of the movable part after the movable part is separated from the fixed contact when the energization to the exciting coil is interrupted. It said return stop comprises a base, a extending portion and a contact portion. The base is fixed to the electromagnet block. The extending portion is provided to extend from the base portion. The abutting portion is provided at a tip of the extending portion, and the movable portion abuts on the abutting portion. The contact portion includes a first curved surface portion and a second curved surface portion. The first curved surface portion is provided at a distal end of the extending portion, and has a curved surface in which the movable portion is convex in a direction away from the fixed contact. The second curved surface portion is provided at a tip of the first curved surface portion, and has a curved surface that is convex in a direction in which the movable portion approaches the fixed contact. When the movable part comes into contact with the contact part, the contact part bends by elasticity along a direction in which the movable part moves away from the fixed contact.
The electromagnetic relay of the present invention includes an electromagnet block, a fixed contact, a movable spring, and a return stopper. The electromagnet block includes an exciting coil, a bobbin, and an iron core. The bobbin has a cylindrical portion in which an insertion hole is formed in the axial direction, and the exciting coil is wound around the cylindrical portion. The iron core is inserted through the insertion hole of the bobbin. The movable spring includes a movable part and a fixed part. The movable part contacts and separates from the fixed contact. The fixing portion is fixed to the electromagnet block. The movable spring is configured such that when the excitation coil is energized, the movable portion is deformed with the fixed portion as a fulcrum by a magnetic force to contact the fixed contact, and when the energization to the excitation coil is interrupted, a return force is obtained. To move the movable part away from the fixed contact. The return stopper suppresses the movement of the movable part after the movable part is separated from the fixed contact when the energization to the exciting coil is interrupted. The iron core includes a columnar shaft portion and a flange portion provided at one end of the shaft portion. The return stopper includes a base portion, an extending portion, and a contact portion. The base portion is sandwiched between the flange portion and the bobbin and is fixed to the electromagnet block. The extending portion is provided to extend from the base portion. The abutting portion is provided at a tip of the extending portion, and the movable portion abuts on the abutting portion. When the movable part comes into contact with the contact part, the contact part bends by elasticity along a direction in which the movable part moves away from the fixed contact.
Preferably, in this electromagnetic relay, a through hole through which the shaft portion is inserted is formed in the base portion.

好ましくは、この電磁継電器において、前記復帰ストッパおよび前記可動部は、金属で形成されている。 Preferably, in this electromagnetic relay, the return stopper and the movable part are made of metal.

本発明の電磁継電器は、電磁石ブロックと、固定接点と、可動ばねと、可動ストッパとを備える。前記電磁石ブロックは、励磁コイルと、ボビンと、鉄芯と、接極子とを含む。前記ボビンは、軸方向に挿通孔が形成された筒部を有し、前記筒部に前記励磁コイルが巻回される。前記鉄芯は、前記ボビンの前記挿通孔に挿通される。前記接極子は、前記鉄芯に対向して配置される。前記可動ばねは、可動部と、固定部とを含む。前記可動部は、前記固定接点に接離する。前記固定部は、前記電磁石ブロックに固定される。前記可動ばねは、前記励磁コイルへ通電されたときに磁力によって前記固定部を支点として前記可動部が変形して前記固定接点に接触し、前記励磁コイルへの通電が遮断されたときに復帰力によって前記可動部が前記固定接点から離れる。前記可動ストッパは、前記励磁コイルへ通電されたときに、前記可動部が前記固定接点に接触する前に、前記可動部が前記固定接点に近づく方向における前記可動部の移動速度を低減させる。前記接極子は、前記可動ばねに取り付けられている。前記可動ストッパは、取付部と、弾性部とを含む。前記取付部は、前記接極子における前記ボビンに対向する面に取り付けられている。前記弾性部は、前記励磁コイルへ通電されたときに前記可動部が前記固定接点に接触する前に前記鉄芯に当接し、弾性によって撓む。 The electromagnetic relay of the present invention includes an electromagnet block, a fixed contact, a movable spring, and a movable stopper. The electromagnet block includes an excitation coil, bobbin and the iron core, including the armature. The bobbin has a cylindrical portion in which an insertion hole is formed in the axial direction, and the exciting coil is wound around the cylindrical portion. The iron core is inserted through the insertion hole of the bobbin. The armature is arranged to face before Kitetsu core. The movable spring includes a movable part and a fixed part. The movable part contacts and separates from the fixed contact. The fixing portion is fixed to the electromagnet block. The movable spring is configured such that when the excitation coil is energized, the movable portion is deformed with the fixed portion as a fulcrum by a magnetic force to contact the fixed contact, and when the energization to the excitation coil is interrupted, a return force is obtained. To move the movable part away from the fixed contact. The movable stopper reduces the moving speed of the movable part in a direction in which the movable part approaches the fixed contact before the movable part contacts the fixed contact when the excitation coil is energized. The armature is attached to the movable spring. The movable stopper includes an attachment portion and an elastic portion. The attachment portion is attached to a surface of the armature facing the bobbin. When the energizing coil is energized, the elastic portion contacts the iron core before the movable portion contacts the fixed contact, and bends due to elasticity.

本発明の電磁継電器は、電磁石ブロックと、固定接点と、可動ばねと、可動ストッパとを備える。前記電磁石ブロックは、励磁コイルと、ボビンと、鉄芯と、接極子とを含む。前記ボビンは、軸方向に挿通孔が形成された筒部を有し、前記筒部に前記励磁コイルが巻回される。前記鉄芯は、前記ボビンの前記挿通孔に挿通される。前記接極子は、前記鉄芯に対向して配置される。前記可動ばねは、可動部と、固定部とを含む。前記可動部は、前記固定接点に接離する。前記固定部は、前記電磁石ブロックに固定される。前記可動ばねは、前記励磁コイルへ通電されたときに磁力によって前記固定部を支点として前記可動部が変形して前記固定接点に接触し、前記励磁コイルへの通電が遮断されたときに復帰力によって前記可動部が前記固定接点から離れる。前記可動ストッパは、前記励磁コイルへ通電されたときに、前記可動部が前記固定接点に接触する前に、前記可動部が前記固定接点に近づく方向における前記可動部の移動速度を低減させる。前記接極子は、前記可動ばねに取り付けられている。前記可動ストッパは、取付部と、弾性部とを含む。前記取付部は、前記接極子における前記ボビンに対向する面に取り付けられている。前記弾性部は、前記励磁コイルへ通電されたときに前記可動部が前記固定接点に接触する前に前記ボビンに当接し、弾性によって撓む。
好ましくは、この電磁継電器は、復帰ストッパを備える。前記復帰ストッパは、前記励磁コイルへの通電が遮断されたときに前記可動部が前記固定接点から離れた後における前記可動部の移動を抑制する。前記復帰ストッパは、前記可動部が当接する当接部を含む。前記当接部は、前記当接部に前記可動部が当接すると、前記可動部が前記固定接点から離れる方向に沿って、弾性によって撓む。 The electromagnetic relay of the present invention includes an electromagnet block, a fixed contact, a movable spring, and a movable stopper. The electromagnet block includes an excitation coil, bobbin and the iron core, including the armature. The bobbin has a cylindrical portion in which an insertion hole is formed in the axial direction, and the exciting coil is wound around the cylindrical portion. The iron core is inserted through the insertion hole of the bobbin. The armature is arranged to face before Kitetsu core. The movable spring includes a movable part and a fixed part. The movable part contacts and separates from the fixed contact. The fixing portion is fixed to the electromagnet block. The movable spring is configured such that when the excitation coil is energized, the movable portion is deformed with the fixed portion as a fulcrum by a magnetic force to contact the fixed contact, and when the energization to the excitation coil is interrupted, a return force is obtained. To move the movable part away from the fixed contact. The movable stopper reduces the moving speed of the movable part in a direction in which the movable part approaches the fixed contact before the movable part contacts the fixed contact when the excitation coil is energized. The armature is attached to the movable spring. The movable stopper includes an attachment portion and an elastic portion. The attachment portion is attached to a surface of the armature facing the bobbin. The elastic portion abuts on the bobbin before the movable portion contacts the fixed contact when the excitation coil is energized and bends due to elasticity.
Preferably, the electromagnetic relay includes a return stopper. The return stopper suppresses the movement of the movable part after the movable part is separated from the fixed contact when the energization to the exciting coil is interrupted. The return stopper includes a contact portion with which the movable portion contacts. When the movable part comes into contact with the contact part, the contact part bends by elasticity along a direction in which the movable part moves away from the fixed contact.

好ましくは、この電磁継電器において、前記復帰ストッパと前記可動ストッパは、金属で形成されている。 Preferably, in this electromagnetic relay, the return stopper and the movable stopper are made of metal.

好ましくは、この電磁継電器において、前記復帰ストッパおよび前記可動ストッパが一体に形成されている。 Preferably, in the electromagnetic relay, the return stopper and the movable stopper are integrally formed.

好ましくは、この電磁継電器において、前記可動ストッパは、基部と、延設部と、弾性部とをさらに含む。前記基部は、前記電磁石ブロックに固定される。前記延設部は、前記基部から延びて設けられ、先端に前記当接部が設けられている。前記弾性部は、前記基部から延びて設けられ、前記可動部が前記固定接点に接触する前に前記可動部が当接すると、前記可動部が前記固定接点に近づく方向に沿って、弾性によって撓む。
好ましくは、この電磁継電器において、前記復帰ストッパは、基部と、延設部と、弾性部とをさらに含む。前記基部は、前記電磁石ブロックに固定される。前記延設部は、前記基部から延びて設けられ、先端に前記当接部が設けられている。前記弾性部は、前記基部から延びて設けられ、前記可動部が前記固定接点に接触する前に前記可動部が当接すると、前記可動部が前記固定接点に近づく方向に沿って、弾性によって撓む。 Preferably, in this electromagnetic relay, before Symbol movable stopper further comprises a base, a extending portion and an elastic portion. The base is fixed to the electromagnet block. The extending portion is provided to extend from the base portion, and the contact portion is provided at the tip. The elastic portion is provided to extend from the base portion, and when the movable portion comes into contact with the movable contact before the movable portion contacts the fixed contact, the movable portion is bent by elasticity along a direction approaching the fixed contact. Mu
Preferably, in the electromagnetic relay, the return stopper further includes a base portion, an extending portion, and an elastic portion. The base is fixed to the electromagnet block. The extending portion is provided to extend from the base portion, and the contact portion is provided at the tip. The elastic portion is provided to extend from the base portion, and when the movable portion comes into contact with the movable contact before the movable portion contacts the fixed contact, the movable portion is bent by elasticity along a direction approaching the fixed contact. Mu

好ましくは、この電磁継電器において、前記弾性部は、前記励磁コイルへ通電されたときに前記可動部が前記固定接点に接触する前に、前記接極子において前記接極子が前記鉄芯と吸着する部分とは異なる部分に当接する。
好ましくは、この電磁継電器において、前記可動部は、可動接点と、作動部とを含む。前記固定接点に接離する。前記作動部は、前記可動接点が取り付けられ、前記励磁コイルへ通電されたときに変形する。 Preferably, in this electromagnetic relay, the front Symbol elastic part, before the movable portion comes into contact with the fixed contact when energized to the exciting coil, the armature is attracted to the iron core in the armature It abuts on a part different from the part.
Preferably, in the electromagnetic relay, the movable part includes a movable contact and an operating part. The fixed contact is contacted and separated. The operating portion is deformed when the movable contact is attached and the exciting coil is energized.

本発明によれば、可動ばねが復帰ストッパに衝突したときの衝突音を低減させることができる。 According to the present invention, it is possible to reduce the collision sound when the movable spring collides with the return stopper.

実施形態１に係る電磁継電器の外観斜視図である。1 is an external perspective view of an electromagnetic relay according to Embodiment 1. FIG. 実施形態１に係る電磁継電器の分解斜視図である。1 is an exploded perspective view of an electromagnetic relay according to Embodiment 1. FIG. 実施形態１に係る復帰ストッパの外観斜視図である。2 is an external perspective view of a return stopper according to Embodiment 1. FIG. 実施形態１に係る電磁継電器の要部の側面図である。It is a side view of the principal part of the electromagnetic relay which concerns on Embodiment 1. FIG. 実施形態２に係る電磁継電器の要部の斜視図である。It is a perspective view of the principal part of the electromagnetic relay which concerns on Embodiment 2. FIG. 実施形態２に係る電磁継電器の分解斜視図である。It is a disassembled perspective view of the electromagnetic relay which concerns on Embodiment 2. FIG. 実施形態２に係る可動ストッパの外観斜視図である。6 is an external perspective view of a movable stopper according to Embodiment 2. FIG. 実施形態２に係る電磁継電器の要部におけるオフ時の側面図である。It is a side view at the time of OFF in the principal part of the electromagnetic relay which concerns on Embodiment 2. FIG. 実施形態２に係る電磁継電器の要部におけるオン時の側面図である。It is a side view at the time of ON in the principal part of the electromagnetic relay which concerns on Embodiment 2. FIG. 実施形態２に係る電磁継電器の動作を説明するための説明図である。FIG. 6 is an explanatory diagram for explaining an operation of an electromagnetic relay according to a second embodiment. 比較例の電磁継電器の動作を説明するための説明図である。It is explanatory drawing for demonstrating operation | movement of the electromagnetic relay of a comparative example. 実施形態２に係る電磁継電器の変形例の要部の斜視図である。It is a perspective view of the principal part of the modification of the electromagnetic relay which concerns on Embodiment 2. FIG. 実施形態２に係る可動ストッパの変形例の外観斜視図である。It is an external appearance perspective view of the modification of the movable stopper which concerns on Embodiment 2. FIG. 実施形態３に係る電磁継電器の要部の斜視図である。It is a perspective view of the principal part of the electromagnetic relay which concerns on Embodiment 3. FIG. 実施形態３に係る可動ストッパの外観斜視図である。6 is an external perspective view of a movable stopper according to Embodiment 3. FIG. 実施形態３に係る可動ストッパの要部におけるオフ時の側面図である。It is a side view at the time of OFF in the principal part of the movable stopper concerning Embodiment 3. 実施形態３に係る可動ストッパの要部におけるオン時の側面図である。It is a side view at the time of ON in the principal part of the movable stopper which concerns on Embodiment 3. FIG. 実施形態３に係る電磁継電器の変形例の要部の斜視図である。It is a perspective view of the principal part of the modification of the electromagnetic relay which concerns on Embodiment 3. FIG. 実施形態３に係る可動ストッパの変形例の外観斜視図である。It is an external appearance perspective view of the modification of the movable stopper which concerns on Embodiment 3. FIG. 実施形態３に係る可動ストッパの変形例の要部におけるオフ時の側面図である。It is a side view at the time of OFF in the principal part of the modification of the movable stopper concerning Embodiment 3. 実施形態３に係る可動ストッパの変形例の要部におけるオン時の側面図である。It is a side view at the time of ON in the principal part of the modification of the movable stopper which concerns on Embodiment 3. FIG. 実施形態４に係る電磁継電器の要部の斜視図である。It is a perspective view of the principal part of the electromagnetic relay which concerns on Embodiment 4. FIG. 実施形態４に係る電磁継電器の分解斜視図である。It is a disassembled perspective view of the electromagnetic relay which concerns on Embodiment 4. FIG. 実施形態４に係るストッパの外観斜視図である。6 is an external perspective view of a stopper according to Embodiment 4. FIG. 実施形態４に係る可動ストッパの要部におけるオフ時の側面図である。It is a side view at the time of OFF in the principal part of the movable stopper concerning Embodiment 4. 実施形態４に係る可動ストッパの要部におけるオン時の側面図である。It is a side view at the time of ON in the principal part of the movable stopper concerning Embodiment 4.

以下の実施形態１〜４に係る電磁継電器は、復帰ストッパを備える。復帰ストッパの当接部は、当接部に可動ばねが当接すると、可動部が固定接点から離れる方向に沿って、弾性によって撓む。以下、図面を参照しながら、実施形態１〜４に係る電磁継電器の詳細について説明する。 The electromagnetic relays according to the following first to fourth embodiments include a return stopper. When the movable spring comes into contact with the contact portion, the contact portion of the return stopper bends due to elasticity along the direction away from the fixed contact. Hereinafter, the details of the electromagnetic relay according to the first to fourth embodiments will be described with reference to the drawings.

（実施形態１）
実施形態１に係る電磁継電器１は、図１，２に示すように、電磁石ブロック２と、接点ブロック３と、ケース４と、復帰ストッパ５とを備えている。 (Embodiment 1)
As illustrated in FIGS. 1 and 2, the electromagnetic relay 1 according to the first embodiment includes an electromagnet block 2, a contact block 3, a case 4, and a return stopper 5.

電磁石ブロック２は、図２に示すように、励磁コイル２１と、ボビン２２と、鉄芯２３と、継鉄２４と、接極子２５と、永久磁石２６と、一対のコイル端子２７１，２７２とを備えている。 As shown in FIG. 2, the electromagnet block 2 includes an exciting coil 21, a bobbin 22, an iron core 23, a yoke 24, an armature 25, a permanent magnet 26, and a pair of coil terminals 271 and 272. I have.

ボビン２２は、筒部２２１と、一対の鍔部２２２，２２３とを備えている。筒部２２１は、中空円筒状に形成されている。一対の鍔部２２２，２２３は、筒部２２１の軸方向の両端に形成されている。筒部２２１および一対の鍔部２２２，２２３は、樹脂などの絶縁材料により一体に形成されている。ボビン２２は、鍔部２２２と鍔部２２３との間の筒部２２１に励磁コイル２１が巻回されている。筒部２２１には、軸方向に挿通孔２２４が形成されている。鍔部２２２の略中央には、凹部２２５が形成されている。 The bobbin 22 includes a cylindrical portion 221 and a pair of flange portions 222 and 223. The cylinder part 221 is formed in a hollow cylindrical shape. The pair of flange portions 222 and 223 are formed at both ends of the cylindrical portion 221 in the axial direction. The cylindrical portion 221 and the pair of flange portions 222 and 223 are integrally formed of an insulating material such as resin. In the bobbin 22, the exciting coil 21 is wound around a cylindrical portion 221 between the flange portion 222 and the flange portion 223. An insertion hole 224 is formed in the cylindrical portion 221 in the axial direction. A recess 225 is formed in the approximate center of the flange 222.

鉄芯２３は、ボビン２２の挿通孔２２４に挿通されている。鉄芯２３は、軸部２３１と、鍔部２３２とを備えている。軸部２３１は、柱状に形成され、より詳細には長尺円柱状に形成されている。鍔部２３２は、軸部２３１の一端に設けられている。軸部２３１および鍔部２３２は、磁性材料により一体に形成されている。 The iron core 23 is inserted through the insertion hole 224 of the bobbin 22. The iron core 23 includes a shaft portion 231 and a flange portion 232. The shaft portion 231 is formed in a columnar shape, and more specifically in a long cylindrical shape. The flange portion 232 is provided at one end of the shaft portion 231. The shaft portion 231 and the flange portion 232 are integrally formed of a magnetic material.

継鉄２４は、第１の片２４１と、第２の片２４２とを備え、略Ｌ字状に形成されている。第１の片２４１および第２の片２４２は、磁性材料により一体に形成されている。第１の片２４１は、ボビン２２の鍔部２２３に形成された凹部２２６に嵌め込まれている。第１の片２４１には、挿通孔２４３が形成されている。挿通孔２４３には、鉄芯２３が挿通される。第２の片２４２は、第１の片２４１の一端より第１の片２４１の鉛直方向に延設されている。第２の片２４２は、ボビン２２の筒部２２１の軸方向に沿って設けられている。 The yoke 24 includes a first piece 241 and a second piece 242 and is formed in a substantially L shape. The first piece 241 and the second piece 242 are integrally formed of a magnetic material. The first piece 241 is fitted in a recess 226 formed in the flange 223 of the bobbin 22. An insertion hole 243 is formed in the first piece 241. The iron core 23 is inserted through the insertion hole 243. The second piece 242 extends in the vertical direction of the first piece 241 from one end of the first piece 241. The second piece 242 is provided along the axial direction of the cylindrical portion 221 of the bobbin 22.

接極子２５は、可動ばね３５に取り付けられて鉄芯２３に対向して配置されている。接極子２５は、磁性材料から長尺平板状に形成されている。接極子２５の一端は、継鉄２４の第２の片２４２と当接している。 The armature 25 is attached to the movable spring 35 and is disposed to face the iron core 23. The armature 25 is formed in a long flat plate shape from a magnetic material. One end of the armature 25 is in contact with the second piece 242 of the yoke 24.

一対のコイル端子２７１，２７２の各々は、銅などの導電性材料により長尺板状に形成されている。一対のコイル端子２７１，２７２の各々には、励磁コイル２１の先端が巻回されて、半田などによって接続されている。 Each of the pair of coil terminals 271 and 272 is formed in a long plate shape by a conductive material such as copper. The tip of the exciting coil 21 is wound around each of the pair of coil terminals 271 and 272 and connected by soldering or the like.

接点ブロック３は、一対の固定接点３１，３２と、一対の主端子３３，３４と、可動ばね３５とを備えている。 The contact block 3 includes a pair of fixed contacts 31 and 32, a pair of main terminals 33 and 34, and a movable spring 35.

固定接点３１は、主端子３３に取り付けられ、固定接点３２は、主端子３４に取り付けられている。一対の主端子３３，３４の各々は、銅などの導電性材料により形成されている。 The fixed contact 31 is attached to the main terminal 33, and the fixed contact 32 is attached to the main terminal 34. Each of the pair of main terminals 33 and 34 is made of a conductive material such as copper.

可動ばね３５は、励磁コイル２１への通電の入り切りに応じて固定接点３１，３２に接離自在に構成されている。可動ばね３５は、可動部３５１と、固定部３５２とを備えている。 The movable spring 35 is configured to be freely contacted and separated from the fixed contacts 31 and 32 according to whether the energization of the exciting coil 21 is turned on or off. The movable spring 35 includes a movable part 351 and a fixed part 352.

可動部３５１は、一対の固定接点３１，３２に接離する。可動部３５１は、一対の可動接点３５３，３５４と、板ばね状の作動部３５５と、成形部３５６とを備えている。可動部３５１のうち成形部３５６を除く部分は、金属で形成されている。成形部３５６は、樹脂などの絶縁材料で形成されている。作動部３５５は、可動接点３５３，３５４が取り付けられ、励磁コイル２１へ通電されたときに変形する。作動部３５５および固定部３５２は、銅などの導電性材料により略Ｌ字状に形成されている。作動部３５５および成形部３５６の一面には接極子２５が固定されている。作動部３５５のうち固定接点３１と対向する位置に可動接点３５３が設けられ、固定接点３２と対向する位置に可動接点３５４が設けられている。可動接点３５３は、固定接点３１に接離する。可動接点３５４は、固定接点３２に接離する。 The movable part 351 contacts and separates from the pair of fixed contacts 31 and 32. The movable portion 351 includes a pair of movable contacts 353 and 354, a leaf spring-like operating portion 355, and a molding portion 356. A portion of the movable portion 351 excluding the forming portion 356 is made of metal. The molding part 356 is made of an insulating material such as resin. The operating portion 355 is deformed when the movable contacts 353 and 354 are attached and the exciting coil 21 is energized. The operation part 355 and the fixing part 352 are formed in a substantially L shape by a conductive material such as copper. The armature 25 is fixed to one surface of the operating portion 355 and the forming portion 356. A movable contact 353 is provided at a position facing the fixed contact 31 in the operating portion 355, and a movable contact 354 is provided at a position facing the fixed contact 32. The movable contact 353 contacts and separates from the fixed contact 31. The movable contact 354 contacts and separates from the fixed contact 32.

固定部３５２は、作動部３５５の一端から延びて設けられている。固定部３５２は、電磁石ブロック２に固定されている。より詳細には、固定部３５２は、例えばねじ止めなどにより、継鉄２４の第２の片２４２に固定されている。これにより、可動ばね３５は、継鉄２４に固定されている。 The fixed portion 352 is provided extending from one end of the operating portion 355. The fixing part 352 is fixed to the electromagnet block 2. More specifically, the fixing portion 352 is fixed to the second piece 242 of the yoke 24 by, for example, screwing or the like. Thereby, the movable spring 35 is fixed to the yoke 24.

可動ばね３５は、励磁コイル２１へ通電されたときに磁力によって、接極子２５が鉄芯２３に吸引されることで、固定部３５２を支点として可動部３５１が変形して固定接点３１，３２に接触する。そして、可動ばね３５は、励磁コイル２１への通電が遮断されたときに復帰力（弾性力）によって可動部３５１が固定接点３１，３２から離れる。 When the energizing coil 21 is energized, the movable spring 35 is attracted to the iron core 23 by the magnetic force, so that the movable portion 351 is deformed with the fixed portion 352 as a fulcrum, and the fixed contacts 31 and 32 are moved. Contact. The movable portion 351 of the movable spring 35 is separated from the fixed contacts 31 and 32 by a restoring force (elastic force) when the energization to the exciting coil 21 is interrupted.

ケース４は、略矩形平板状のベース４１と、略矩形箱状のカバー４２とを備えている。ベース４１には、主端子３３が挿通される挿通孔４１１と、主端子３４が挿通される挿通孔４１２と、コイル端子２７１が挿通される挿通孔４１３と、コイル端子２７２が挿通される挿通孔４１４とが形成されている。カバー４２は、一面が開口してベース４１に覆設される。 The case 4 includes a substantially rectangular flat plate-like base 41 and a substantially rectangular box-shaped cover 42. The base 41 has an insertion hole 411 through which the main terminal 33 is inserted, an insertion hole 412 through which the main terminal 34 is inserted, an insertion hole 413 through which the coil terminal 271 is inserted, and an insertion hole through which the coil terminal 272 is inserted. 414 is formed. One surface of the cover 42 is opened on the base 41.

復帰ストッパ５は、励磁コイル２１への通電が遮断されたときに可動ばね３５の可動部３５１（可動接点３５３，３５４）が固定接点３１，３２から離れた後における可動ばね３５の可動部３５１の移動を抑制する。復帰ストッパ５は、金属で形成されている。復帰ストッパ５は、図２，３に示すように、基部５１と、延設部５２と、当接部５３とを一体に備えている。 The return stopper 5 is configured so that the movable portion 351 of the movable spring 35 after the movable portion 351 (movable contacts 353 and 354) is separated from the fixed contacts 31 and 32 when the energization to the exciting coil 21 is interrupted. Suppress movement. The return stopper 5 is made of metal. As shown in FIGS. 2 and 3, the return stopper 5 integrally includes a base portion 51, an extending portion 52, and a contact portion 53.

基部５１は、電磁石ブロック２に固定されている。本実施形態では、基部５１は、ボビン２２に固定されている。より詳細には、基部５１は、ボビン２２の鍔部２２２の略中央に形成された凹部２２５に嵌め込まれ、鉄芯２３の鍔部２３２とボビン２２とで挟持されて固定されている。基部５１には、鉄芯２３の軸部２３１が挿通される貫通孔５１１が形成されている。 The base 51 is fixed to the electromagnet block 2. In the present embodiment, the base 51 is fixed to the bobbin 22. More specifically, the base 51 is fitted into a recess 225 formed at the approximate center of the flange 222 of the bobbin 22, and is sandwiched and fixed between the flange 232 of the iron core 23 and the bobbin 22. A through hole 511 through which the shaft portion 231 of the iron core 23 is inserted is formed in the base portion 51.

延設部５２は、基部５１から延びて設けられている。 The extending portion 52 is provided extending from the base portion 51.

当接部５３は、可動ばね３５の可動部３５１が当接する。当接部５３は、延設部５２の先端に設けられている。当接部５３は、当接部５３に可動部３５１が当接すると、可動部３５１の可動接点３５３，３５４が固定接点３１，３２から離れる方向Ａ１に沿って、弾性によって撓む。すなわち、当接部５３は、可動接点３５３，３５４が固定接点３１，３２から離れる方向Ａ１に沿って撓むように弾性を有している。これにより、当接部５３は、当接部５３に可動部３５１が当接する前に比べて、方向Ａ１における可動ばね３５の可動部３５１の単位時間あたりの移動量すなわち可動部３５１の移動速度を低減させる。 The contact portion 53 contacts the movable portion 351 of the movable spring 35. The contact portion 53 is provided at the tip of the extended portion 52. When the movable part 351 comes into contact with the contact part 53, the contact part 53 is bent by elasticity along the direction A <b> 1 in which the movable contacts 353 and 354 of the movable part 351 are separated from the fixed contacts 31 and 32. That is, the contact portion 53 has elasticity so that the movable contacts 353 and 354 are bent along the direction A1 away from the fixed contacts 31 and 32. As a result, the contact portion 53 has the amount of movement per unit time of the movable portion 351 of the movable spring 35 in the direction A1, that is, the moving speed of the movable portion 351, compared to before the movable portion 351 contacts the contact portion 53. Reduce.

ところで、当接部５３は、第１の曲面部５３１と、第２の曲面部５３２とを一体に備えている。第１の曲面部５３１は、延設部５２の先端に設けられている。第１の曲面部５３１は、可動部３５１の可動接点３５３，３５４が固定接点３１，３２から離れる方向Ａ１に凸となる曲面を有している。第２の曲面部５３２は、第１の曲面部５３１の先端に設けられている。第２の曲面部５３２は、可動部３５１の可動接点３５３，３５４が固定接点３１，３２に近づく方向Ａ２に凸となる曲面を有している。 By the way, the contact part 53 is integrally provided with a first curved surface part 531 and a second curved surface part 532. The first curved surface portion 531 is provided at the tip of the extending portion 52. The first curved surface portion 531 has a curved surface that is convex in the direction A1 in which the movable contacts 353 and 354 of the movable portion 351 are separated from the fixed contacts 31 and 32. The second curved surface portion 532 is provided at the tip of the first curved surface portion 531. The second curved surface portion 532 has a curved surface that is convex in the direction A <b> 2 in which the movable contacts 353 and 354 of the movable portion 351 approach the fixed contacts 31 and 32.

次に、本実施形態に係る電磁継電器１の動作について図４を用いて説明する。 Next, operation | movement of the electromagnetic relay 1 which concerns on this embodiment is demonstrated using FIG.

まず、励磁コイル２１が通電された場合、鉄芯２３が磁化されることによって、鉄芯２３の鍔部２３２に接極子２５が吸着されて当接する。これに伴い、接極子２５が設けられた可動ばね３５の可動部３５１の先端が変位し、可動接点３５３，３５４が固定接点３１，３２に接触する。その結果、可動接点３５３，３５４と固定接点３１，３２との間は、電気的に導通される。 First, when the exciting coil 21 is energized, the armature 25 is magnetized, so that the armature 25 is attracted and brought into contact with the flange portion 232 of the iron core 23. Accordingly, the tip of the movable portion 351 of the movable spring 35 provided with the armature 25 is displaced, and the movable contacts 353 and 354 are in contact with the fixed contacts 31 and 32. As a result, the movable contacts 353 and 354 and the fixed contacts 31 and 32 are electrically connected.

一方、励磁コイル２１への通電が遮断された場合、鉄芯２３は消磁され、可動ばね３５の弾性作用によって接極子２５が鉄芯２３の鍔部２３２から離れるとともに、可動ばね３５の可動部３５１が変位する。これに伴い、可動接点３５３，３５４が固定接点３１，３２から離れる。その結果、可動接点３５３，３５４と固定接点３１，３２との間は、電気的に遮断される。 On the other hand, when the energization to the exciting coil 21 is interrupted, the iron core 23 is demagnetized, and the armature 25 is separated from the flange 232 of the iron core 23 by the elastic action of the movable spring 35, and the movable portion 351 of the movable spring 35. Is displaced. Accordingly, the movable contacts 353 and 354 are separated from the fixed contacts 31 and 32. As a result, the movable contacts 353 and 354 and the fixed contacts 31 and 32 are electrically disconnected.

この場合、図４に示すように、可動ばね３５は、復帰ストッパ５に当接する。復帰ストッパ５に可動ばね３５が当接したとき、復帰ストッパ５は、弾性を有しているので、可動ばね３５の衝撃を緩和する。 In this case, as shown in FIG. 4, the movable spring 35 contacts the return stopper 5. When the movable spring 35 comes into contact with the return stopper 5, the return stopper 5 has elasticity, so that the impact of the movable spring 35 is reduced.

以上説明した本実施形態に係る電磁継電器１では、可動ばね３５が復帰ストッパ５に当接したときに、復帰ストッパ５が弾性によって変形することによって、復帰時における可動ばね３５から復帰ストッパ５への衝撃を低減（吸収・緩和）させることができる。これにより、本実施形態に係る電磁継電器１では、可動ばね３５が復帰ストッパ５に衝突することに起因する衝突音を低減させることができる。 In the electromagnetic relay 1 according to the present embodiment described above, when the movable spring 35 comes into contact with the return stopper 5, the return stopper 5 is elastically deformed, so that the movable spring 35 to the return stopper 5 at the time of return is deformed. Impact can be reduced (absorbed / relaxed). Thereby, in the electromagnetic relay 1 which concerns on this embodiment, the collision sound resulting from the movable spring 35 colliding with the return stopper 5 can be reduced.

また、本実施形態に係る電磁継電器１では、復帰ストッパ５および可動ばね３５の可動部３５１（可動接点３５３，３５４を含む）は、金属で形成されている。これにより、本実施形態に係る電磁継電器１では、復帰ストッパ５と可動ばね３５の可動部３５１（可動接点３５３，３５４）とが金属製部品同士の接触となるので、復帰ストッパが樹脂製部品である場合に比べて、摩耗粉が発生しにくい。また、本実施形態に係る電磁継電器１では、たとえ摩耗粉が発生したとしても、摩耗粉が金属粉であるので、可動ばね３５の可動部３５１の可動接点３５３，３５４と固定接点３１，３２との間で導通不良になりにくい。 Further, in the electromagnetic relay 1 according to the present embodiment, the return stopper 5 and the movable portion 351 (including the movable contacts 353 and 354) of the movable spring 35 are formed of metal. Accordingly, in the electromagnetic relay 1 according to the present embodiment, the return stopper 5 and the movable portion 351 (movable contacts 353 and 354) of the movable spring 35 are in contact with each other, so that the return stopper is a resin part. Abrasion powder is less likely to occur than in certain cases. Further, in the electromagnetic relay 1 according to the present embodiment, even if wear powder is generated, the wear powder is metal powder, so that the movable contacts 353 and 354 of the movable portion 351 of the movable spring 35 and the fixed contacts 31 and 32 It is hard to become poor conduction between.

（実施形態２）
実施形態２に係る電磁継電器１は、図５，６に示すように、可動ストッパ６を備えている点で、実施形態１に係る電磁継電器１（図１，２参照）と相違する。なお、実施形態１の電磁継電器１と同様の構成要素については、同一の符号を付して説明を省略する。 (Embodiment 2)
As shown in FIGS. 5 and 6, the electromagnetic relay 1 according to the second embodiment is different from the electromagnetic relay 1 according to the first embodiment (see FIGS. 1 and 2) in that the movable stopper 6 is provided. In addition, about the component similar to the electromagnetic relay 1 of Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted.

本実施形態に係る電磁継電器１は、可動ストッパ６を備えている。 The electromagnetic relay 1 according to this embodiment includes a movable stopper 6.

可動ストッパ６は、励磁コイル２１へ通電されたときに、可動部３５１が固定接点３１，３２に接触する前に、方向Ａ２における可動部３５１の移動速度を低減させる。方向Ａ２は、可動部３５１の可動接点３５３，３５４が固定接点３１，３２に近づく方向である。可動ストッパ６は、金属で形成されている。可動ストッパ６は、図７に示すように、取付部６１と、弾性部６２とを一体に備えている。 The movable stopper 6 reduces the moving speed of the movable portion 351 in the direction A2 before the movable portion 351 contacts the fixed contacts 31 and 32 when the excitation coil 21 is energized. The direction A2 is a direction in which the movable contacts 353 and 354 of the movable portion 351 approach the fixed contacts 31 and 32. The movable stopper 6 is made of metal. As shown in FIG. 7, the movable stopper 6 is integrally provided with a mounting portion 61 and an elastic portion 62.

取付部６１は、図５に示すように、接極子２５に固定されている。より詳細には、取付部６１は、接極子２５におけるボビン２２に対向する第１の面２５１に取り付けられている。すなわち、平板状に形成された接極子２５において、可動ばね３５の可動部３５１が取り付けられている第２の面２５２とは反対側の第１の面２５１に、取付部６１は取り付けられている。 The attachment portion 61 is fixed to the armature 25 as shown in FIG. More specifically, the attachment portion 61 is attached to the first surface 251 facing the bobbin 22 in the armature 25. That is, in the armature 25 formed in a flat plate shape, the attachment portion 61 is attached to the first surface 251 opposite to the second surface 252 to which the movable portion 351 of the movable spring 35 is attached. .

弾性部６２は、励磁コイル２１へ通電されたときに可動ばね３５の可動部３５１の可動接点３５３，３５４が固定接点３１，３２に接触する前に鉄芯２３に当接し、弾性によって撓む。弾性部６２は、取付部６１から延びて設けられている。弾性部６２は、可動接点３５３，３５４が固定接点３１，３２から離れる方向Ａ１に沿って撓むように弾性を有している。これにより、弾性部６２は、鉄芯２３に弾性部６２が当接する前に比べて、可動ばね３５の可動部３５１の単位時間あたりの移動量すなわち可動部３５１の移動速度を低減させる。 The elastic part 62 comes into contact with the iron core 23 before the movable contacts 353 and 354 of the movable part 351 of the movable spring 35 come into contact with the fixed contacts 31 and 32 when the excitation coil 21 is energized, and bends due to elasticity. The elastic part 62 is provided extending from the attachment part 61. The elastic part 62 has elasticity so that the movable contacts 353 and 354 bend along the direction A1 away from the fixed contacts 31 and 32. Thereby, the elastic part 62 reduces the moving amount per unit time of the movable part 351 of the movable spring 35, that is, the moving speed of the movable part 351, compared to before the elastic part 62 contacts the iron core 23.

次に、本実施形態に係る電磁継電器１の動作について図８〜１１を用いて説明する。 Next, operation | movement of the electromagnetic relay 1 which concerns on this embodiment is demonstrated using FIGS.

まず、励磁コイル２１が通電される前では、図８に示すように、可動ストッパ６は、接極子２５に取り付けられた状態で、鉄芯２３から離れている。復帰ストッパ５には、可動ばね３５が当接している。 First, before the exciting coil 21 is energized, the movable stopper 6 is attached to the armature 25 and is separated from the iron core 23 as shown in FIG. A movable spring 35 is in contact with the return stopper 5.

その後、励磁コイル２１が通電された場合、図９に示すように、鉄芯２３が磁化されると、可動接点３５３，３５４が固定接点３１，３２に接触する前に、可動ストッパ６が鉄芯２３に当接する。その後、接極子２５が設けられた可動ばね３５の可動部３５１の先端が変位し、可動接点３５３，３５４が固定接点３１，３２に接触する。その結果、可動接点３５３，３５４と固定接点３１，３２との間は、電気的に導通される。 Thereafter, when the exciting coil 21 is energized, as shown in FIG. 9, when the iron core 23 is magnetized, the movable stopper 6 is moved to the iron core before the movable contacts 353 and 354 come into contact with the fixed contacts 31 and 32. 23. Thereafter, the tip of the movable portion 351 of the movable spring 35 provided with the armature 25 is displaced, and the movable contacts 353 and 354 come into contact with the fixed contacts 31 and 32. As a result, the movable contacts 353 and 354 and the fixed contacts 31 and 32 are electrically connected.

本実施形態の電磁継電器１は、可動接点３５３，３５４が固定接点３１，３２に接触する前に可動ストッパ６が鉄芯２３に当接するので、図１０に示すように、可動ストッパ６を備えていない電磁継電器（図１１参照）に比べて、接点衝突エネルギーＢ１を小さくすることができる。接点衝突エネルギーＢ１は、吸引力曲線Ｂ２とばね負荷曲線Ｂ３との差分である。 The electromagnetic relay 1 of the present embodiment includes the movable stopper 6 as shown in FIG. 10 because the movable stopper 6 contacts the iron core 23 before the movable contacts 353 and 354 contact the fixed contacts 31 and 32. The contact collision energy B1 can be reduced as compared with a non-electromagnetic relay (see FIG. 11). The contact collision energy B1 is a difference between the attractive force curve B2 and the spring load curve B3.

以上説明した本実施形態に係る電磁継電器１は、励磁コイル２１へ通電されたときに可動ばね３５の可動部３５１（可動接点３５３，３５４）が固定接点３１，３２に接触する前に、可動ストッパ６が可動ばね３５の移動速度を低減させる。すなわち、可動ストッパ６が可動ばね３５の移動を弱める。これにより、本実施形態に係る電磁継電器１では、可動ストッパを備えていない電磁継電器に比べて、可動ばね３５の可動部３５１の可動接点３５３，３５４が固定接点３１，３２に接触するときの接点衝突エネルギーを低減させることができる。その結果、本実施形態に係る電磁継電器１では、可動ばね３５の可動部３５１の可動接点３５３，３５４が固定接点３１，３２に接触することに起因する衝突音を低減させることができる。 The electromagnetic relay 1 according to the present embodiment described above has a movable stopper before the movable portion 351 (movable contacts 353 and 354) of the movable spring 35 contacts the fixed contacts 31 and 32 when the exciting coil 21 is energized. 6 reduces the moving speed of the movable spring 35. That is, the movable stopper 6 weakens the movement of the movable spring 35. Thereby, in the electromagnetic relay 1 which concerns on this embodiment, compared with the electromagnetic relay which is not equipped with a movable stopper, the contact when the movable contacts 353 and 354 of the movable part 351 of the movable spring 35 contact the fixed contacts 31 and 32. The collision energy can be reduced. As a result, in the electromagnetic relay 1 according to the present embodiment, it is possible to reduce a collision sound caused by the movable contacts 353 and 354 of the movable portion 351 of the movable spring 35 coming into contact with the fixed contacts 31 and 32.

また、本実施形態に係る電磁継電器１では、可動ばね３５の可動部３５１（可動接点３５３，３５４）が固定接点３１，３２に接触する前に、可動ストッパ６が可動ばね３５の移動速度を低減させることによって、接点バウンスを低減させることができる。これにより、本実施形態に係る電磁継電器１では、開閉寿命を向上させることができる。 In the electromagnetic relay 1 according to the present embodiment, the movable stopper 6 reduces the moving speed of the movable spring 35 before the movable portion 351 (movable contacts 353 and 354) of the movable spring 35 contacts the fixed contacts 31 and 32. By doing so, contact bounce can be reduced. Thereby, in the electromagnetic relay 1 which concerns on this embodiment, switching life can be improved.

本実施形態に係る電磁継電器１では、可動ばね３５の可動部３５１（可動接点３５３，３５４）が固定接点３１，３２に接触する前に可動ストッパ６が鉄芯２３に当接する。これにより、本実施形態に係る電磁継電器１では、可動ばね３５が鉄芯２３に衝突する際の勢いを低減させることができるので、可動ばね３５が鉄芯２３に衝突することに起因する衝突音を低減させることができる。 In the electromagnetic relay 1 according to the present embodiment, the movable stopper 6 contacts the iron core 23 before the movable portion 351 (movable contacts 353 and 354) of the movable spring 35 contacts the fixed contacts 31 and 32. Thereby, in the electromagnetic relay 1 which concerns on this embodiment, since the momentum at the time of the movable spring 35 colliding with the iron core 23 can be reduced, the collision sound resulting from the movable spring 35 colliding with the iron core 23 is reduced. Can be reduced.

さらに、本実施形態に係る電磁継電器１では、可動ストッパ６が金属で形成されている。これにより、本実施形態に係る電磁継電器１では、鉄芯２３と可動ストッパ６とが金属製部品同士の接触となるので、可動ストッパが樹脂製部品である場合に比べて、摩耗粉が発生しにくい。また、本実施形態に係る電磁継電器１では、たとえ摩耗粉が発生したとしても、摩耗粉が金属粉であるので、可動ばね３５の可動部３５１の可動接点３５３，３５４と固定接点３１，３２との間で導通不良になりにくい。 Furthermore, in the electromagnetic relay 1 according to the present embodiment, the movable stopper 6 is made of metal. Thereby, in the electromagnetic relay 1 which concerns on this embodiment, since the iron core 23 and the movable stopper 6 will contact metal parts, abrasion powder generate | occur | produces compared with the case where a movable stopper is a resin part. Hateful. Further, in the electromagnetic relay 1 according to the present embodiment, even if wear powder is generated, the wear powder is metal powder, so that the movable contacts 353 and 354 of the movable portion 351 of the movable spring 35 and the fixed contacts 31 and 32 It is hard to become poor conduction between.

なお、本実施形態に係る電磁継電器１の変形例として、電磁継電器１は、可動ストッパ６に代えて、図１２，１３に示すような可動ストッパ６ａを備えていてもよい。 As a modification of the electromagnetic relay 1 according to the present embodiment, the electromagnetic relay 1 may include a movable stopper 6a as shown in FIGS.

本変形例の可動ストッパ６ａは、２点で鉄芯２３に当接する。可動ストッパ６ａは、取付部６１ａと、一対の弾性部６２ａとを備えている。 The movable stopper 6a of this modification abuts on the iron core 23 at two points. The movable stopper 6a includes a mounting portion 61a and a pair of elastic portions 62a.

取付部６１ａは、接極子２５に固定されている。より詳細には、取付部６１ａは、接極子２５におけるボビン２２に対向する第１の面２５１に取り付けられている。すなわち、平板状に形成された接極子２５において、可動ばね３５の可動部３５１が取り付けられている第２の面２５２とは反対側の第１の面２５１に、取付部６１ａは取り付けられている。 The attachment portion 61a is fixed to the armature 25. More specifically, the attachment portion 61 a is attached to the first surface 251 facing the bobbin 22 in the armature 25. That is, in the armature 25 formed in a flat plate shape, the attachment portion 61a is attached to the first surface 251 opposite to the second surface 252 to which the movable portion 351 of the movable spring 35 is attached. .

一対の弾性部６２ａの各々は、励磁コイル２１へ通電されたときに可動ばね３５の可動部３５１（可動接点３５３，３５４）が固定接点３１，３２に接触する前に鉄芯２３に当接し、弾性によって撓む。各弾性部６２ａは、取付部６１ａから延びて設けられている。各弾性部６２ａは、可動接点３５３，３５４が固定接点３１，３２から離れる方向Ａ１に沿って撓むように弾性を有している。これにより、各弾性部６２ａは、鉄芯２３に各弾性部６２が当接する前に比べて、可動ばね３５の可動部３５１の単位時間あたりの移動量すなわち可動部３５１の移動速度を低減させる。 Each of the pair of elastic portions 62a contacts the iron core 23 before the movable portion 351 (movable contacts 353, 354) of the movable spring 35 contacts the fixed contacts 31, 32 when the excitation coil 21 is energized. Deflection due to elasticity. Each elastic portion 62a extends from the attachment portion 61a. Each elastic part 62a has elasticity so that the movable contacts 353 and 354 bend along the direction A1 away from the fixed contacts 31 and 32. Thereby, each elastic part 62a reduces the moving amount per unit time of the movable part 351 of the movable spring 35, that is, the moving speed of the movable part 351, compared to before the elastic parts 62 contact the iron core 23.

（実施形態３）
実施形態３に係る電磁継電器１は、図１７に示すように、可動ストッパ６ｂがボビン２２に接触する点で、実施形態２に係る電磁継電器１（図９参照）と相違する。なお、実施形態２の電磁継電器１と同様の構成要素については、同一の符号を付して説明を省略する。 (Embodiment 3)
As shown in FIG. 17, the electromagnetic relay 1 according to the third embodiment is different from the electromagnetic relay 1 according to the second embodiment (see FIG. 9) in that the movable stopper 6 b contacts the bobbin 22. In addition, about the component similar to the electromagnetic relay 1 of Embodiment 2, the same code | symbol is attached | subjected and description is abbreviate | omitted.

本実施形態に係る電磁継電器１は、可動ストッパ６ｂが鉄芯２３ではなくボビン２２に接触する。可動ストッパ６ｂは、金属で形成されている。可動ストッパ６ｂは、図１５に示すように、取付部６１ｂと、弾性部６２ｂとを一体に備えている。なお、実施形態２の可動ストッパ６（図７参照）と同様の機能については説明を省略する。 In the electromagnetic relay 1 according to the present embodiment, the movable stopper 6b contacts the bobbin 22 instead of the iron core 23. The movable stopper 6b is made of metal. As shown in FIG. 15, the movable stopper 6b is integrally provided with a mounting portion 61b and an elastic portion 62b. In addition, description is abbreviate | omitted about the function similar to the movable stopper 6 (refer FIG. 7) of Embodiment 2. FIG.

取付部６１ｂは、図１４に示すように、接極子２５に固定されている。より詳細には、取付部６１ｂは、接極子２５におけるボビン２２に対向する第１の面２５１に取り付けられている。すなわち、平板状に形成された接極子２５において、可動ばね３５の可動部３５１が取り付けられている第２の面２５２とは反対側の第１の面２５１に、取付部６１ｂは取り付けられている。 The attachment portion 61b is fixed to the armature 25 as shown in FIG. More specifically, the attachment portion 61 b is attached to the first surface 251 facing the bobbin 22 in the armature 25. That is, in the armature 25 formed in a flat plate shape, the attachment portion 61b is attached to the first surface 251 opposite to the second surface 252 to which the movable portion 351 of the movable spring 35 is attached. .

弾性部６２ｂは、励磁コイル２１へ通電されたときに可動ばね３５の可動部３５１（可動接点３５３，３５４）が固定接点３１，３２に接触する前にボビン２２に当接し、弾性によって撓む。弾性部６２ｂは、取付部６１ｂから延びて設けられている。弾性部６２ｂは、可動接点３５３，３５４が固定接点３１，３２から離れる方向Ａ１に沿って撓むように弾性を有している。これにより、弾性部６２ｂは、ボビン２２に弾性部６２ｂが当接する前に比べて、可動ばね３５の可動部３５１の単位時間あたりの移動量すなわち可動部３５１の移動速度を低減させる。 The elastic portion 62b contacts the bobbin 22 before the movable portion 351 (movable contacts 353 and 354) of the movable spring 35 contacts the fixed contacts 31 and 32 when the exciting coil 21 is energized, and bends due to elasticity. The elastic part 62b extends from the attachment part 61b. The elastic part 62b has elasticity so that the movable contacts 353 and 354 are bent along the direction A1 away from the fixed contacts 31 and 32. Thereby, the elastic part 62b reduces the moving amount per unit time of the movable part 351 of the movable spring 35, that is, the moving speed of the movable part 351, compared to before the elastic part 62b contacts the bobbin 22.

次に、本実施形態に係る電磁継電器１の動作について図１６，１７を用いて説明する。 Next, operation | movement of the electromagnetic relay 1 which concerns on this embodiment is demonstrated using FIG.

まず、励磁コイル２１が通電される前では、図１６に示すように、可動ストッパ６ｂは、接極子２５に取り付けられた状態で、ボビン２２から離れている。復帰ストッパ５には、可動ばね３５が当接されている。 First, before the exciting coil 21 is energized, the movable stopper 6b is attached to the armature 25 and is separated from the bobbin 22 as shown in FIG. A movable spring 35 is in contact with the return stopper 5.

その後、励磁コイル２１が通電された場合、図１７に示すように、鉄芯２３が磁化されると、可動接点３５３，３５４が固定接点３１，３２に接触する前に、可動ストッパ６ｂがボビン２２に当接する。その後、接極子２５が設けられた可動ばね３５の可動部３５１の先端が変位し、可動接点３５３，３５４が固定接点３１，３２に接触する。その結果、可動接点３５３，３５４と固定接点３１，３２との間は、電気的に導通される。 Thereafter, when the exciting coil 21 is energized, as shown in FIG. 17, when the iron core 23 is magnetized, the movable stopper 6 b is moved to the bobbin 22 before the movable contacts 353 and 354 come into contact with the fixed contacts 31 and 32. Abut. Thereafter, the tip of the movable portion 351 of the movable spring 35 provided with the armature 25 is displaced, and the movable contacts 353 and 354 come into contact with the fixed contacts 31 and 32. As a result, the movable contacts 353 and 354 and the fixed contacts 31 and 32 are electrically connected.

本実施形態の電磁継電器１は、可動接点３５３，３５４が固定接点３１，３２に接触する前に可動ストッパ６ｂがボビン２２に当接するので、可動ストッパ６ｂを備えていない電磁継電器に比べて、接点衝突エネルギーを小さくすることができる。 The electromagnetic relay 1 of the present embodiment has contact points compared to the electromagnetic relay that does not include the movable stopper 6b because the movable stopper 6b contacts the bobbin 22 before the movable contacts 353 and 354 contact the fixed contacts 31 and 32. The collision energy can be reduced.

以上説明した本実施形態に係る電磁継電器１では、可動ばね３５の可動部３５１（可動接点３５３，３５４）が固定接点３１，３２に接触する前に可動ストッパ６ｂがボビン２２に当接する。これにより、本実施形態に係る電磁継電器１では、可動ばね３５がボビン２２に衝突する際の勢いを低減させることができるので、可動ばね３５がボビン２２に衝突することに起因する衝突音を低減させることができる。 In the electromagnetic relay 1 according to the present embodiment described above, the movable stopper 6b contacts the bobbin 22 before the movable portion 351 (movable contacts 353, 354) of the movable spring 35 contacts the fixed contacts 31, 32. Thereby, in the electromagnetic relay 1 which concerns on this embodiment, since the momentum when the movable spring 35 collides with the bobbin 22 can be reduced, the collision sound resulting from the movable spring 35 colliding with the bobbin 22 is reduced. Can be made.

また、本実施形態に係る電磁継電器１では、鉄芯２３にザグリなどを設ける必要がない、すなわち、磁極面の形状を変える必要がないので、電磁石ブロック２の磁気特性に対する影響が少ない。 Further, in the electromagnetic relay 1 according to the present embodiment, it is not necessary to provide counterbore or the like on the iron core 23, that is, it is not necessary to change the shape of the magnetic pole surface, so that the influence on the magnetic characteristics of the electromagnet block 2 is small.

なお、本実施形態に係る電磁継電器１の変形例として、電磁継電器１は、可動ストッパ６ｂに代えて、図１８，１９に示すような可動ストッパ６ｃを備えていてもよい。 As a modification of the electromagnetic relay 1 according to the present embodiment, the electromagnetic relay 1 may include a movable stopper 6c as shown in FIGS. 18 and 19 instead of the movable stopper 6b.

本変形例の可動ストッパ６ｃは、２点でボビン２２に当接する。可動ストッパ６ｃは、取付部６１ｃと、一対の弾性部６２ｃとを備えている。 The movable stopper 6c of this modification abuts on the bobbin 22 at two points. The movable stopper 6c includes an attachment portion 61c and a pair of elastic portions 62c.

取付部６１ｃは、接極子２５に固定されている。より詳細には、取付部６１ｃは、接極子２５におけるボビン２２に対向する第１の面２５１に取り付けられている。すなわち、平板状に形成された接極子２５において、可動ばね３５の可動部３５１が取り付けられている第２の面２５２とは反対側の第１の面２５１に、取付部６１ｃは取り付けられている。 The attachment portion 61c is fixed to the armature 25. More specifically, the attachment portion 61 c is attached to the first surface 251 facing the bobbin 22 in the armature 25. That is, in the armature 25 formed in a flat plate shape, the attachment portion 61c is attached to the first surface 251 opposite to the second surface 252 to which the movable portion 351 of the movable spring 35 is attached. .

一対の弾性部６２ｃの各々は、励磁コイル２１へ通電されたときに可動ばね３５の可動部３５１（可動接点３５３，３５４）が固定接点３１，３２に接触する前にボビン２２に当接し、弾性によって撓む。各弾性部６２ｃは、取付部６１ｃから延びて設けられている。各弾性部６２ｃは、可動接点３５３，３５４が固定接点３１，３２から離れる方向Ａ１に沿って撓むように弾性を有している。これにより、各弾性部６２ｃは、ボビン２２に各弾性部６２ｃが当接する前に比べて、可動ばね３５の可動部３５１の単位時間あたりの移動量すなわち可動部３５１の移動速度を低減させる。 Each of the pair of elastic portions 62c comes into contact with the bobbin 22 before the movable portion 351 (movable contacts 353 and 354) of the movable spring 35 contacts the fixed contacts 31 and 32 when the excitation coil 21 is energized. Bend by. Each elastic portion 62c extends from the attachment portion 61c. Each elastic part 62c has elasticity so that the movable contacts 353 and 354 bend along the direction A1 away from the fixed contacts 31 and 32. Thereby, each elastic part 62c reduces the moving amount per unit time of the movable part 351 of the movable spring 35, that is, the moving speed of the movable part 351, compared with before the elastic parts 62c contact the bobbin 22.

次に、本変形例に係る電磁継電器１の動作について図２０，２１を用いて説明する。 Next, operation | movement of the electromagnetic relay 1 which concerns on this modification is demonstrated using FIG.

まず、励磁コイル２１が通電される前では、図２０に示すように、可動ストッパ６ｃは、接極子２５に取り付けられた状態で、ボビン２２から離れている。復帰ストッパ５には、可動ばね３５が当接されている。 First, before the exciting coil 21 is energized, the movable stopper 6c is attached to the armature 25 and is separated from the bobbin 22 as shown in FIG. A movable spring 35 is in contact with the return stopper 5.

その後、励磁コイル２１が通電された場合、図２１に示すように、鉄芯２３が磁化されると、可動接点３５３，３５４が固定接点３１，３２に接触する前に、可動ストッパ６ｃがボビン２２に当接する。その後、接極子２５が設けられた可動ばね３５の可動部３５１の先端が変位し、可動接点３５３，３５４が固定接点３１，３２に接触する。その結果、可動接点３５３，３５４と固定接点３１，３２との間は、電気的に導通される。 Thereafter, when the exciting coil 21 is energized, as shown in FIG. 21, when the iron core 23 is magnetized, the movable stopper 6 c is moved to the bobbin 22 before the movable contacts 353 and 354 come into contact with the fixed contacts 31 and 32. Abut. Thereafter, the tip of the movable portion 351 of the movable spring 35 provided with the armature 25 is displaced, and the movable contacts 353 and 354 come into contact with the fixed contacts 31 and 32. As a result, the movable contacts 353 and 354 and the fixed contacts 31 and 32 are electrically connected.

（実施形態４）
実施形態４に係る電磁継電器１は、図２２，２３に示すようなストッパ７を備えている点で、実施形態１に係る電磁継電器１（図１参照）と相違する。なお、実施形態１の電磁継電器１と同様の構成要素については、同一の符号を付して説明を省略する。 (Embodiment 4)
The electromagnetic relay 1 according to the fourth embodiment is different from the electromagnetic relay 1 according to the first embodiment (see FIG. 1) in that a stopper 7 as shown in FIGS. In addition, about the component similar to the electromagnetic relay 1 of Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted.

本実施形態に係る電磁継電器１は、復帰ストッパおよび可動ストッパが一体に形成されたストッパ７を備えている。 The electromagnetic relay 1 according to the present embodiment includes a stopper 7 in which a return stopper and a movable stopper are integrally formed.

ストッパ７は、図２３，２４に示すように、基部７１と、延設部７２と、当接部７３と、一対の弾性部７４，７５とを備えている。ストッパ７は、金属で形成されている。ストッパ７では、基部７１と延設部７２と当接部７３と一対の弾性部７４，７５とが一体に形成されている。 As shown in FIGS. 23 and 24, the stopper 7 includes a base 71, an extending portion 72, a contact portion 73, and a pair of elastic portions 74 and 75. The stopper 7 is made of metal. In the stopper 7, a base portion 71, an extending portion 72, a contact portion 73, and a pair of elastic portions 74 and 75 are integrally formed.

基部７１は、電磁石ブロック２に固定されている。本実施形態では、基部７１は、ボビン２２に固定されている。より詳細には、基部７１は、ボビン２２の鍔部２２２の略中央に形成された凹部２２５に嵌め込まれ、鉄芯２３の鍔部２３２とボビン２２とで挟持されて固定されている。基部７１には、鉄芯２３の軸部２３１が挿通される貫通孔７１１が形成されている。 The base 71 is fixed to the electromagnet block 2. In the present embodiment, the base portion 71 is fixed to the bobbin 22. More specifically, the base 71 is fitted into a recess 225 formed at the approximate center of the flange 222 of the bobbin 22, and is sandwiched and fixed between the flange 232 of the iron core 23 and the bobbin 22. A through hole 711 through which the shaft portion 231 of the iron core 23 is inserted is formed in the base portion 71.

延設部７２は、基部７１から延びて設けられている。 The extending portion 72 is provided extending from the base portion 71.

当接部７３は、可動ばね３５の可動部３５１が当接する。当接部７３は、延設部７２の先端に設けられている。当接部７３は、当接部７３に可動部３５１が当接すると、可動部３５１の可動接点３５３，３５４が固定接点３１，３２から離れる方向Ａ１に沿って、弾性によって撓む。すなわち、当接部７３は、可動接点３５３，３５４が固定接点３１，３２から離れる方向Ａ１に沿って撓むように弾性を有している。これにより、当接部７３は、当接部７３に可動部３５１が当接する前に比べて、可動接点３５３，３５４が固定接点３１，３２から離れる方向Ａ１における可動ばね３５の可動部３５１の単位時間あたりの移動量すなわち可動部３５１の移動速度を低減させる。 The abutting portion 73 abuts on the movable portion 351 of the movable spring 35. The contact portion 73 is provided at the tip of the extended portion 72. When the movable part 351 comes into contact with the contact part 73, the contact part 73 is bent by elasticity along the direction A <b> 1 in which the movable contacts 353 and 354 of the movable part 351 are separated from the fixed contacts 31 and 32. That is, the contact portion 73 has elasticity so that the movable contacts 353 and 354 bend along the direction A1 away from the fixed contacts 31 and 32. Thereby, the contact portion 73 is a unit of the movable portion 351 of the movable spring 35 in the direction A1 in which the movable contacts 353 and 354 are separated from the fixed contacts 31 and 32, compared to before the movable portion 351 contacts the contact portion 73. The amount of movement per time, that is, the moving speed of the movable part 351 is reduced.

当接部７３は、第１の曲面部７３１と、第２の曲面部７３２とを一体に備えている。第１の曲面部７３１は、延設部７２の先端に設けられている。第１の曲面部７３１は、可動部３５１の可動接点３５３，３５４が固定接点３１，３２から離れる方向Ａ１に凸となる曲面を有している。第２の曲面部７３２は、第１の曲面部７３１の先端に設けられている。第２の曲面部７３２は、可動部３５１の可動接点３５３，３５４が固定接点３１，３２に近づく方向Ａ２に凸となる曲面を有している。 The contact portion 73 is integrally provided with a first curved surface portion 731 and a second curved surface portion 732. The first curved surface portion 731 is provided at the tip of the extending portion 72. The first curved surface portion 731 has a curved surface that is convex in the direction A1 in which the movable contacts 353 and 354 of the movable portion 351 are separated from the fixed contacts 31 and 32. The second curved surface portion 732 is provided at the tip of the first curved surface portion 731. The second curved surface portion 732 has a curved surface that protrudes in the direction A <b> 2 in which the movable contacts 353 and 354 of the movable portion 351 approach the fixed contacts 31 and 32.

一対の弾性部７４，７５の各々は、基部７１から延びて設けられている。一対の弾性部７４，７５の各々は、可動部３５１の可動接点３５３，３５４が固定接点３１，３２に接触する前に可動部３５１が当接すると、可動部３５１の可動接点３５３，３５４が固定接点３１，３２に近づく方向Ａ２に沿って、弾性によって撓む。一対の弾性部７４，７５の各々は、可動接点３５３，３５４が固定接点３１，３２に近づく方向Ａ２に沿って撓むように弾性を有している。より詳細には、一対の弾性部７４，７５の各々は、励磁コイル２１へ通電されたときに可動部３５１の可動接点３５３，３５４が固定接点３１，３２に接触する前に、接極子２５において接極子２５が鉄芯２３と吸着する部分とは異なる部分に当接する。これにより、各弾性部７４，７５は、接極子２５に各弾性部７４，７５が当接する前に比べて、可動ばね３５の可動部３５１の単位時間あたりの移動量すなわち可動部３５１の移動速度を低減させる。 Each of the pair of elastic portions 74 and 75 is provided to extend from the base portion 71. When each of the pair of elastic portions 74 and 75 comes into contact with the movable contacts 353 and 354 before the movable contacts 353 and 354 contact the fixed contacts 31 and 32, the movable contacts 353 and 354 of the movable portion 351 are fixed. It bends by elasticity along the direction A2 approaching the contacts 31, 32. Each of the pair of elastic portions 74 and 75 has elasticity so that the movable contacts 353 and 354 are bent along the direction A2 approaching the fixed contacts 31 and 32. More specifically, each of the pair of elastic portions 74 and 75 is connected to the armature 25 before the movable contacts 353 and 354 of the movable portion 351 come into contact with the fixed contacts 31 and 32 when the exciting coil 21 is energized. The armature 25 abuts on a portion different from the portion adsorbing the iron core 23. Thereby, each elastic part 74 and 75 is the moving amount per unit time of the movable part 351 of the movable spring 35, that is, the moving speed of the movable part 351, compared to before the respective elastic parts 74 and 75 contact the armature 25. Reduce.

次に、本実施形態に係る電磁継電器１の動作について図２５，２６を用いて説明する。 Next, operation | movement of the electromagnetic relay 1 which concerns on this embodiment is demonstrated using FIG.

まず、励磁コイル２１への通電が遮断された場合、鉄芯２３は消磁され、可動ばね３５の弾性作用によって、可動ばね３５の可動部３５１が変位する。これに伴い、可動接点３５３，３５４が固定接点３１，３２から離れる。その結果、可動接点３５３，３５４と固定接点３１，３２との間は、電気的に遮断される。 First, when the energization of the exciting coil 21 is interrupted, the iron core 23 is demagnetized, and the movable portion 351 of the movable spring 35 is displaced by the elastic action of the movable spring 35. Accordingly, the movable contacts 353 and 354 are separated from the fixed contacts 31 and 32. As a result, the movable contacts 353 and 354 and the fixed contacts 31 and 32 are electrically disconnected.

この場合、図２５に示すように、可動ばね３５は、ストッパ７の当接部７３に当接する。ストッパ７の当接部７３に可動ばね３５が当接したとき、ストッパ７の当接部７３は、弾性を有しているので、可動ばね３５の衝撃を緩和する。ストッパ７の一対の弾性部７４，７５は、可動ばね３５に取り付けられた接極子２５から離れる。 In this case, as shown in FIG. 25, the movable spring 35 contacts the contact portion 73 of the stopper 7. When the movable spring 35 comes into contact with the contact portion 73 of the stopper 7, the contact portion 73 of the stopper 7 has elasticity, so that the impact of the movable spring 35 is reduced. The pair of elastic portions 74 and 75 of the stopper 7 are separated from the armature 25 attached to the movable spring 35.

一方、励磁コイル２１が通電された場合、図２６に示すように、鉄芯２３が磁化されることによって、接極子２５が設けられた可動ばね３５の可動部３５１の先端が変位し、可動接点３５３，３５４が固定接点３１，３２に接触する。その結果、可動接点３５３，３５４と固定接点３１，３２との間は、電気的に導通される。 On the other hand, when the exciting coil 21 is energized, the tip of the movable portion 351 of the movable spring 35 provided with the armature 25 is displaced by magnetizing the iron core 23 as shown in FIG. 353 and 354 are in contact with the fixed contacts 31 and 32. As a result, the movable contacts 353 and 354 and the fixed contacts 31 and 32 are electrically connected.

この場合、可動ばね３５は、ストッパ７の当接部７３から離れる。その後、ストッパ７の一対の弾性部７４，７５の各々は、可動ばね３５の可動接点３５３，３５４が固定接点３１，３２に接触する前に、可動ばね３５に取り付けられた接極子２５に当接し、可動ばね３５の移動速度を低減させる。 In this case, the movable spring 35 is separated from the contact portion 73 of the stopper 7. Thereafter, each of the pair of elastic portions 74 and 75 of the stopper 7 contacts the armature 25 attached to the movable spring 35 before the movable contacts 353 and 354 of the movable spring 35 come into contact with the fixed contacts 31 and 32. The moving speed of the movable spring 35 is reduced.

以上説明した本実施形態に係る電磁継電器１では、復帰ストッパと可動ストッパとが一体に形成されていることによって、部品点数を低減させることができる。 In the electromagnetic relay 1 according to the present embodiment described above, the number of components can be reduced by integrally forming the return stopper and the movable stopper.

また、本実施形態に係る電磁継電器１では、鉄芯２３にザグリなどを設ける必要がなく、すなわち、磁極面の形状を変える必要がないので、電磁石ブロック２の磁気特性に対する影響が少ない。 Further, in the electromagnetic relay 1 according to the present embodiment, it is not necessary to provide a counterbore or the like on the iron core 23, that is, it is not necessary to change the shape of the magnetic pole surface, so that the influence on the magnetic characteristics of the electromagnet block 2 is small.

なお、実施形態１〜４の各々に係る電磁継電器１は、可動接点３５３，３５４を備えていない構成であってもよい。この場合、可動ばね３５の可動部３５１のうち固定接点３１と対向する部分が固定接点３１に接離し、可動部３５１のうち固定接点３２と対向する部分が固定接点３２に接離する。すなわち、励磁コイル２１へ通電されたときに、可動部３５１が固定接点３１，３２に接触し、励磁コイル２１への通電が遮断されたときに可動部３５１が固定接点３１，３２から離れる。 In addition, the structure which is not provided with the movable contacts 353 and 354 may be sufficient as the electromagnetic relay 1 which concerns on each of Embodiment 1-4. In this case, a portion of the movable portion 351 of the movable spring 35 that faces the fixed contact 31 contacts and separates from the fixed contact 31, and a portion of the movable portion 351 that faces the fixed contact 32 contacts and separates from the fixed contact 32. That is, when the excitation coil 21 is energized, the movable part 351 comes into contact with the fixed contacts 31 and 32, and when the excitation coil 21 is deenergized, the movable part 351 is separated from the fixed contacts 31 and 32.

１電磁継電器
２電磁石ブロック
２１励磁コイル
２２ボビン
２２１筒部
２２４挿通孔
２３鉄芯
２３１軸部
２３２鍔部
２５接極子
３１，３２固定接点
３５可動ばね
３５１可動部
３５２固定部
３５３，３５４可動接点
３５５作動部
５復帰ストッパ
５１基部
５１１貫通孔
５２延設部
５３当接部
５３１第１の曲面部
５３２第２の曲面部
６，６ａ〜６ｃ可動ストッパ
６１，６１ａ〜６１ｃ取付部
６２，６２ａ〜６２ｃ弾性部
７ストッパ
７１基部
７１１貫通孔
７２延設部
７３当接部
７３１第１の曲面部
７３２第２の曲面部
７４，７５弾性部 DESCRIPTION OF SYMBOLS 1 Electromagnetic relay 2 Electromagnet block 21 Excitation coil 22 Bobbin 221 Cylindrical part 224 Insertion hole 23 Iron core 231 Shaft part 232 Gutter part 25 Armature 31, 32 Fixed contact 35 Movable spring 351 Movable part 352 Fixed part 353, 354 Movable contact 355 Actuation Part 5 Return stopper 51 Base part 511 Through hole 52 Extension part 53 Contact part 531 First curved surface part 532 Second curved surface part 6, 6a to 6c Movable stopper 61, 61a to 61c Mounting part 62, 62a to 62c Elastic part 7 Stopper 71 Base portion 711 Through hole 72 Extension portion 73 Abutting portion 731 First curved surface portion 732 Second curved surface portion 74, 75 Elastic portion

Claims

An electromagnet block including an excitation coil;
A fixed contact;
A movable portion that contacts and separates from the fixed contact; and a fixed portion that is fixed to the electromagnet block. When the excitation coil is energized, the movable portion is deformed with the fixed portion as a fulcrum by a magnetic force and fixed. A movable spring that comes into contact with the contact and the movable part is separated from the fixed contact by a return force when the energization to the excitation coil is interrupted;
A return stopper that suppresses the movement of the movable part after the movable part is separated from the fixed contact when energization to the excitation coil is interrupted,
The return stopper is
A base fixed to the electromagnet block;
An extending portion provided extending from the base portion;
A contact portion that is provided at a distal end of the extending portion and that contacts the movable portion;
The contact portion is
A first curved surface portion provided at a distal end of the extending portion, the movable portion having a curved surface that is convex in a direction away from the fixed contact;
A second curved surface portion provided at a tip of the first curved surface portion and having a curved surface convex in a direction in which the movable portion approaches the fixed contact;
When the movable part comes into contact with the contact part, the movable part bends by elasticity along a direction away from the fixed contact.

An electromagnet having an excitation coil, a bobbin having an insertion hole formed in the axial direction, the bobbin around which the excitation coil is wound, and an iron core inserted through the insertion hole of the bobbin Block,
A fixed contact;
A movable portion that contacts and separates from the fixed contact; and a fixed portion that is fixed to the electromagnet block. When the excitation coil is energized, the movable portion is deformed with the fixed portion as a fulcrum by a magnetic force and fixed. A movable spring that comes into contact with the contact and the movable part is separated from the fixed contact by a return force when the energization to the excitation coil is interrupted;
A return stopper that suppresses the movement of the movable part after the movable part is separated from the fixed contact when energization to the excitation coil is interrupted,
The iron core is
A columnar shaft,
Including a flange portion provided at one end of the shaft portion,
The return stopper is
A base portion sandwiched between the flange portion and the bobbin and fixed to the electromagnet block;
An extending portion provided extending from the base portion;
A contact portion that is provided at a distal end of the extending portion and that contacts the movable portion;
When the movable part comes into contact with the contact part, the contact part bends by elasticity along a direction away from the fixed contact.
An electromagnetic relay characterized by that.

The electromagnetic relay according to claim 2, wherein the base portion is formed with a through hole through which the shaft portion is inserted.

The electromagnetic relay according to claim 1, wherein the return stopper and the movable part are made of metal.

An exciting coil; a bobbin having an insertion hole formed in an axial direction; the bobbin around which the exciting coil is wound; an iron core inserted into the insertion hole of the bobbin; and the iron An electromagnet block including an armature disposed opposite the core;
A fixed contact;
A movable portion that contacts and separates from the fixed contact; and a fixed portion that is fixed to the electromagnet block. When the excitation coil is energized, the movable portion is deformed with the fixed portion as a fulcrum by a magnetic force and fixed. A movable spring that comes into contact with the contact and the movable part is separated from the fixed contact by a return force when the energization to the excitation coil is interrupted;
A movable stopper that reduces a moving speed of the movable part in a direction in which the movable part approaches the fixed contact before the movable part contacts the fixed contact when the excitation coil is energized;
The armature is attached to the movable spring;
The movable stopper is
An attachment portion attached to a surface of the armature facing the bobbin;
An elastic part that comes into contact with the iron core and bends by elasticity before the movable part comes into contact with the fixed contact when the excitation coil is energized.
An electromagnetic relay characterized by that.

An exciting coil; a bobbin having an insertion hole formed in an axial direction; the bobbin around which the exciting coil is wound; an iron core inserted into the insertion hole of the bobbin; and the iron An electromagnet block including an armature disposed opposite the core;
A fixed contact;
A movable portion that contacts and separates from the fixed contact; and a fixed portion that is fixed to the electromagnet block. When the excitation coil is energized, the movable portion is deformed with the fixed portion as a fulcrum by a magnetic force and fixed. A movable spring that comes into contact with the contact and the movable part is separated from the fixed contact by a return force when the energization to the excitation coil is interrupted;
A movable stopper that reduces a moving speed of the movable part in a direction in which the movable part approaches the fixed contact before the movable part contacts the fixed contact when the excitation coil is energized;
The armature is attached to the movable spring;
The movable stopper is
An attachment portion attached to a surface of the armature facing the bobbin;
An elastic part that abuts on the bobbin before the movable part comes into contact with the fixed contact when the excitation coil is energized and bends due to elasticity.
An electromagnetic relay characterized by that.

A return stopper that suppresses movement of the movable part after the movable part is separated from the fixed contact when energization to the excitation coil is interrupted;
The return stopper includes a contact portion with which the movable portion contacts,
When the movable part comes into contact with the contact part, the contact part bends by elasticity along a direction away from the fixed contact.
The electromagnetic relay according to claim 5 or 6, characterized by the above.

The electromagnetic relay according to claim 7, wherein the return stopper and the movable stopper are made of metal.

The electromagnetic relay according to claim 7 or 8, wherein the return stopper and the movable stopper are integrally formed.

The movable stopper is
A base fixed to the electromagnet block;
An extending portion provided extending from the base portion and provided with the abutting portion at a tip;
An elastic portion that extends from the base portion and flexes by elasticity along a direction in which the movable portion approaches the fixed contact when the movable portion contacts before the movable portion contacts the fixed contact;
The electromagnetic relay according to claim 7, further comprising:

The return stopper is
A base fixed to the electromagnet block;
An extending portion provided extending from the base portion and provided with the abutting portion at a tip;
An elastic portion that extends from the base portion and flexes by elasticity along a direction in which the movable portion approaches the fixed contact when the movable portion contacts before the movable portion contacts the fixed contact;
The electromagnetic relay according to claim 7, further comprising:

The elastic portion is in contact with a portion of the armature that is different from a portion where the armature adsorbs to the iron core before the movable portion contacts the fixed contact when the exciting coil is energized. The electromagnetic relay according to claim 10 or 11.

The movable part is
A movable contact contacting and separating from the fixed contact;
An actuating part that is deformed when the movable contact is attached and the excitation coil is energized;
The electromagnetic relay according to any one of claims 1 to 12, wherein the electromagnetic relay is included.