JP4606490B2 - Electromagnetic switch - Google Patents

Electromagnetic switch Download PDF

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JP4606490B2
JP4606490B2 JP2008292976A JP2008292976A JP4606490B2 JP 4606490 B2 JP4606490 B2 JP 4606490B2 JP 2008292976 A JP2008292976 A JP 2008292976A JP 2008292976 A JP2008292976 A JP 2008292976A JP 4606490 B2 JP4606490 B2 JP 4606490B2
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iron core
movable iron
fixed
contact
buffer member
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JP2010123262A (en
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芳宏 森本
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
    • H01H51/065—Relays having a pair of normally open contacts rigidly fixed to a magnetic core movable along the axis of a solenoid, e.g. relays for starting automobiles

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)

Description

この発明は、励磁コイルの通電のオン、オフにより接点同士が接離する電磁スイッチに関するものである。   The present invention relates to an electromagnetic switch in which contacts are connected to and separated from each other when energization of an exciting coil is turned on and off.

従来、スイッチケースと、このスイッチケースの内部に設けられ、通電時に磁力を発生する筒状の励磁コイルと、この励磁コイルの一端部に固定された固定鉄心と、この固定鉄心に摺動可能に設けられ、固定接点と当接する可動接点を保持するロッドと、前記励磁コイルに前記固定鉄心に対向して挿入された可動鉄心と、この可動鉄心と前記固定鉄心との間に設けられ、可動鉄心を反固定鉄心側に付勢したスプリングと、前記スイッチケースに連結され前記スプリングの弾性力により前記可動鉄心が反固定鉄心側へ移動したときの停止位置を規制したストッパ部材と、前記スイッチケースと前記ストッパ部材との間に設けられ、前記スプリングの弾性力により前記可動鉄心のストッパ部材に対する衝撃力を緩和する緩衝部材とを備えた電磁スイッチが知られている（例えば、特許文献１参照）。   Conventionally, a switch case, a cylindrical excitation coil provided inside the switch case and generating magnetic force when energized, a fixed iron core fixed to one end of the excitation coil, and slidable on the fixed iron core A rod that is provided and holds a movable contact that comes into contact with the fixed contact; a movable core that is inserted into the excitation coil so as to face the fixed core; and a movable core that is provided between the movable core and the fixed core. A spring biased toward the anti-fixed iron core, a stopper member connected to the switch case and restricting a stop position when the movable iron core moves toward the anti-fixed iron core due to the elastic force of the spring, and the switch case An electromagnetic spring provided between the stopper member and a buffer member for reducing an impact force of the movable iron core against the stopper member by an elastic force of the spring. Pitch is known (e.g., see Patent Document 1).

特開２００６−２６０８４６号公報（図１及び図３）JP 2006-260846 A (FIGS. 1 and 3)

上記構成の電磁スイッチでは、ストッパ部材の凹部に収納された緩衝部材は、径外側方向に折曲された周縁部がストッパ部材とスイッチケースとの間に挟まれて固定されているので、次のような問題点があった。
イ．緩衝部材の周縁部は、全周にわたって一面がスイッチケースと面接触し、他面がストッパ部材と面接触しており、ストッパ部材とスイッチケースとからの面圧により弾性変形するので、所定の変形に対して大きな力を要することになり、それだけスイッチケースにストッパ部材を密接して固定するのに大きな力が必要となる。
ロ．周縁部の全体が常に面圧を受け、経時変化で劣化し易い。
ハ．周縁部の肉厚は、スイッチケースにストッパ部材を密接して固定するときの力に大きな影響があり、周縁部が係合するストッパ部材の溝の深さ管理が困難である。 In the electromagnetic switch having the above configuration, the buffer member housed in the concave portion of the stopper member is fixed with the peripheral edge bent in the radially outward direction being sandwiched between the stopper member and the switch case. There was a problem like this.
I. The peripheral part of the buffer member has one surface in contact with the switch case over the entire circumference and the other surface in surface contact with the stopper member, and is elastically deformed by the surface pressure from the stopper member and the switch case. Therefore, a large force is required to closely fix the stopper member to the switch case.
B. The entire periphery is always subjected to surface pressure and is likely to deteriorate with time.
C. The thickness of the peripheral edge part has a great influence on the force when the stopper member is closely fixed to the switch case, and it is difficult to manage the depth of the groove of the stopper member engaged with the peripheral edge part.

この発明は、かかる問題点を解決することを課題とするものであって、スイッチケースにストッパ部材を密接して固定するのに大きな力が必要とせず、面圧を受け経時変化で劣化する領域が減少し、さらに困難なストッパ部材の溝加工が不要となる等の電磁スイッチを得ることを目的とする。   An object of the present invention is to solve such problems, and does not require a large force to closely fix the stopper member to the switch case, and is a region that deteriorates with time due to surface pressure. It is an object of the present invention to obtain an electromagnetic switch in which, for example, there is a decrease in the number of the stopper members, and the more difficult groove processing of the stopper member becomes unnecessary.

この発明に係る電磁スイッチは、スイッチケースと、このスイッチケースの内部に設けられ、通電時に磁力を発生する筒状の励磁コイルと、この励磁コイルの端部に固定された固定鉄心と、この固定鉄心に摺動可能に設けられ、固定接点と当接する可動接点を保持するロッドと、前記励磁コイルに前記固定鉄心に対向して挿入された可動鉄心と、この可動鉄心と前記固定鉄心との間に設けられ、可動鉄心を反固定鉄心側に付勢したスプリングと、前記スイッチケースに連結され前記スプリングの弾性力により前記可動鉄心が反固定鉄心側へ移動したときの停止位置を規制したストッパ部材と、前記スイッチケースと前記ストッパ部材との間に設けられ、前記スプリングの弾性力により前記可動鉄心のストッパ部材に対する衝撃力を緩和する緩衝部材と、この緩衝部材に係止され前記可動鉄心と衝突するワッシャとを備え、前記緩衝部材は、前記ストッパ部材に形成された凹部に収納されているとともに、前記可動鉄心の径方向の外側で一端面が前記スイッチケースに当接し、他端面が凹部の底面に当接した柱部を有している。   An electromagnetic switch according to the present invention includes a switch case, a cylindrical excitation coil that is provided inside the switch case and generates a magnetic force when energized, a fixed iron core fixed to an end of the excitation coil, and the fixed A rod that is slidably provided on the iron core and holds a movable contact that contacts the fixed contact; a movable iron core that is inserted into the excitation coil so as to face the fixed iron core; and between the movable iron core and the fixed iron core Provided with a spring that urges the movable iron core toward the anti-fixed iron core, and a stopper member that is connected to the switch case and restricts the stop position when the movable iron core moves toward the anti-fixed iron core due to the elastic force of the spring. Between the switch case and the stopper member, and relaxes the impact force of the movable iron core against the stopper member by the elastic force of the spring. A member and a washer that is locked to the shock-absorbing member and collides with the movable iron core. The shock-absorbing member is housed in a recess formed in the stopper member, and is disposed outside in the radial direction of the movable iron core. One end surface is in contact with the switch case, and the other end surface has a column portion in contact with the bottom surface of the recess.

この発明によれば、緩衝部材は、ストッパ部材に形成された凹部に収納されているとともに、可動鉄心の径方向の外側で一端面がスイッチケースに当接し、他端面が凹部の底面に当接した柱部を有しているので、スイッチケースにストッパ部材を密接して固定するのに大きな力が必要とせず、面圧を受け経時変化で劣化する領域が減少し、さらに困難なストッパ部材の溝加工が不要となる。   According to this invention, the buffer member is housed in the recess formed in the stopper member, and one end surface contacts the switch case on the outer side in the radial direction of the movable iron core, and the other end surface contacts the bottom surface of the recess. Therefore, a large force is not required to fix the stopper member in close contact with the switch case, and the area that deteriorates with time due to surface pressure is reduced. Grooving is not necessary.

実施の形態１．
図１はこの発明の実施の形態１の電磁スイッチを示す断面図である。
この電磁スイッチでは、円筒形状のスイッチケース１の上端部に、周縁部が鍔形状の固定鉄心２が固定されている。固定鉄心２の中心部には、上下に摺動可能なロッド３が設けられている。このロッド３に対向して有底円筒形状の可動鉄心４が設けられている。可動鉄心４と固定鉄心２との間には、可動鉄心４の上端部の外周面及び固定鉄心２の下部の外周面を囲った第１のスプリング５が設けられている。この第１のスプリング５の弾性力により、可動鉄心４は固定鉄心２から離れる方向に常に付勢されている。
可動鉄心４及び固定鉄心２の外側には、可動鉄心４及び固定鉄心２を囲った励磁コイル７が設けられている。励磁コイル７は、円筒形状のボビン６に導線が巻回されて構成されている。 Embodiment 1 FIG.
1 is a cross-sectional view showing an electromagnetic switch according to Embodiment 1 of the present invention.
In this electromagnetic switch, a fixed iron core 2 having a bowl-shaped peripheral edge is fixed to an upper end portion of a cylindrical switch case 1. A rod 3 slidable in the vertical direction is provided at the center of the fixed iron core 2. Opposite to the rod 3, a bottomed cylindrical movable iron core 4 is provided. A first spring 5 is provided between the movable iron core 4 and the fixed iron core 2 so as to surround the outer peripheral surface of the upper end portion of the movable iron core 4 and the outer peripheral surface of the lower portion of the fixed iron core 2. Due to the elastic force of the first spring 5, the movable iron core 4 is always urged away from the fixed iron core 2.
An excitation coil 7 surrounding the movable iron core 4 and the fixed iron core 2 is provided outside the movable iron core 4 and the fixed iron core 2. The exciting coil 7 is configured by winding a conducting wire around a cylindrical bobbin 6.

ロッド３の可動鉄心４と反対側には、ロッド３に一端部が当接した第２のスプリング８が設けられている。この第２のスプリング８の他端部は、上下動可能な可動接点９に当接している。
スイッチケース１は、開口部がかしめ加工されて円筒形状の接点ケース１０と固定されている。接点ケース１０には、先端部に固定接点１１が設けられた第１の外部端子１２、及び先端部に固定接点１１が設けられた第２の外部端子１３が固定されている。第１の外部端子１２は、バッテリケーブル（図示せず）に接続される。第２の外部端子１３は、スタータモータのリード線（図示せず）と接続される。可動接点９と接点ケース１０との間には、弾性力により可動接点９側に常に付勢した第３のスプリング１４が設けられている。 On the opposite side of the rod 3 from the movable iron core 4, a second spring 8 having one end abutting against the rod 3 is provided. The other end of the second spring 8 is in contact with a movable contact 9 that can move up and down.
The switch case 1 is fixed to a cylindrical contact case 10 by caulking the opening. Fixed to the contact case 10 are a first external terminal 12 having a fixed contact 11 provided at the tip and a second external terminal 13 having the fixed contact 11 provided at the tip. The first external terminal 12 is connected to a battery cable (not shown). The second external terminal 13 is connected to a lead wire (not shown) of the starter motor. Between the movable contact 9 and the contact case 10, there is provided a third spring 14 that is constantly urged toward the movable contact 9 by an elastic force.

スイッチケース１の底壁部には、非磁性部材であるアルミニウム製のストッパ部材１５がボルト１６により固定されている。
このストッパ部材１５の上面には、凹部１７が形成されている。この凹部１７には、弾性を有するゴム製の緩衝部材１８が収納されている。この緩衝部材１８には、図２に示す、金属製のワッシャ１９が係止されている。 An aluminum stopper member 15, which is a nonmagnetic member, is fixed to the bottom wall portion of the switch case 1 with a bolt 16.
A recess 17 is formed on the upper surface of the stopper member 15. The recess 17 houses a rubber cushioning member 18 having elasticity. A metal washer 19 shown in FIG. 2 is engaged with the buffer member 18.

緩衝部材１８は、図３及び図４に示すように小判形状であり、長径側の両側には、柱部２０がそれぞれ形成されている。この両柱部２０は、可動鉄心４の径方向の外側でスイッチケース１及びストッパ部材１５の両側に突出し、一方の先端面がスイッチケース１の下面に当接し、他方の先端面がストッパ部材１５の凹部１７の底面に当接している。この柱部２０は、円柱形状で両先端部において円錐形状の小径部２０ａを有している。
緩衝部材１８は、ストッパ部材１５側に突出した変形部２１が周方向に間隔をおいて６個形成されている。この変形部２１は、先端部が半球形状の小径部２１ａを有しており、その先端面が凹部１７の底面に当接している。
緩衝部材１８の中心部には、可動鉄心４の内部に突出した係止部２２が形成されている。この係止部２２は、中空であり、圧入されたワッシャ１９を係止している。係止部２２の周壁面には、周方向に等間隔で三箇所にストッパ部２２ａが形成されている。このストッパ部２２ａにより、ワッシャ１９がロッド３側に移動するのを規制している。
緩衝部材１８は、長径側の両周面に径方向に突出した抜け止め部２４がそれぞれ形成されている。この抜け止め部２４の先端面は凹部１７の内側壁面に当接している。 The buffer member 18 has an oval shape as shown in FIGS. 3 and 4, and column parts 20 are formed on both sides of the longer diameter side. The two columnar portions 20 protrude on both sides of the switch case 1 and the stopper member 15 on the outer side in the radial direction of the movable iron core 4, one end surface is in contact with the lower surface of the switch case 1, and the other end surface is the stopper member 15. Is in contact with the bottom surface of the recess 17. The column portion 20 has a cylindrical shape and has a conical small-diameter portion 20a at both tip portions.
The buffer member 18 is formed with six deformed portions 21 protruding toward the stopper member 15 at intervals in the circumferential direction. The deformed portion 21 has a small-diameter portion 21 a having a hemispherical tip portion, and the tip surface is in contact with the bottom surface of the recess 17.
A locking portion 22 that protrudes into the movable iron core 4 is formed at the center of the buffer member 18. The locking portion 22 is hollow and locks the press-fitted washer 19. On the peripheral wall surface of the locking portion 22, stopper portions 22 a are formed at three locations at equal intervals in the circumferential direction. The stopper portion 22a restricts the washer 19 from moving to the rod 3 side.
The buffer member 18 is formed with a retaining portion 24 projecting in the radial direction on both circumferential surfaces on the long diameter side. The tip end surface of the retaining portion 24 is in contact with the inner wall surface of the recess 17.

次に、上記構成の電磁スイッチの動作について説明する。
始動スイッチ（図示せず）をＯＮ操作すると、励磁コイル７に電圧が印加され、励磁コイル７に電流が流れて、磁界が発生する。この磁界の発生により、第１のスプリング５の弾性力に逆らって可動鉄心４が固定鉄心２側に吸引される。可動鉄心４は、固定鉄心２に当接する前に、ロッド３の先端面に当接し、ロッド３を介して可動接点９を移動（図１の上方向）させて、可動接点９を一対の固定接点１１に当接させる。この結果、スタータモータ（図示せず）の通電回路が閉回路となり、バッテリ（図示せず）からスタータモータに始動電流が流れる。 Next, the operation of the electromagnetic switch having the above configuration will be described.
When a start switch (not shown) is turned ON, a voltage is applied to the exciting coil 7, a current flows through the exciting coil 7, and a magnetic field is generated. Due to the generation of this magnetic field, the movable iron core 4 is attracted toward the fixed iron core 2 against the elastic force of the first spring 5. Before the movable iron core 4 abuts on the fixed iron core 2, it abuts on the tip surface of the rod 3, and the movable contact 9 is moved (upward in FIG. 1) via the rod 3 so that the movable contact 9 is fixed in a pair. Contact the contact 11. As a result, the energization circuit of the starter motor (not shown) becomes a closed circuit, and a starting current flows from the battery (not shown) to the starter motor.

その後、始動スイッチをＯＦＦ操作すると、励磁コイル７への通電が停止し、可動鉄心４を固定鉄心２側に吸引させる電磁力が消滅する。この結果、可動鉄心４は、ロッド３を介した第２のスプリング８と第３のスプリング１４との弾性力と、第１のスプリング５の弾性力とによりストッパ部材１５側に移動し、その可動鉄心４の移動に連動してロッド３も移動して、可動接点９は固定接点１１から開離し、この結果、スタータモータ（図示せず）の通電回路が開回路となり、バッテリからスタータモータへの通電は遮断される。   Thereafter, when the start switch is turned OFF, energization to the exciting coil 7 is stopped, and the electromagnetic force that attracts the movable iron core 4 to the fixed iron core 2 side disappears. As a result, the movable iron core 4 is moved to the stopper member 15 side by the elastic force of the second spring 8 and the third spring 14 via the rod 3 and the elastic force of the first spring 5, and the movable iron core 4 is movable. The rod 3 also moves in conjunction with the movement of the iron core 4, and the movable contact 9 is separated from the fixed contact 11. As a result, the energization circuit of the starter motor (not shown) becomes an open circuit, and the battery to the starter motor is opened. Energization is cut off.

可動鉄心４は、ストッパ部材１５側に引き続き移動し、ワッシャ１９に衝突して停止する。この衝突時、緩衝部材１８の変形部２１は軸線方向に弾性変形し、衝突エネルギを吸収することで、衝突音を低減している。   The movable iron core 4 continues to move toward the stopper member 15, collides with the washer 19 and stops. At the time of the collision, the deforming portion 21 of the buffer member 18 is elastically deformed in the axial direction and absorbs the collision energy, thereby reducing the collision sound.

上記構成の電磁スイッチによれば、緩衝部材１８は、ストッパ部材１５に形成された凹部１７に収納されているとともに、可動鉄心４の径方向の外側で一端面がスイッチケース１の下面に当接し、他端面が凹部１７の底面に当接した柱部２０を有しており、この柱部２０により緩衝部材１８の軸線方向の移動が規制されている。
従って、電磁スイッチの組立時において、スイッチケース１にストッパ部材１５を密接して固定するのに大きな力が必要とせず、簡単に固定することができる。
また、緩衝部材１８において、スイッチケース１とストッパ部材１５との間に挟まれ常に面圧を受けるのは柱部２０だけであり、従来のものと比較して面圧を受ける領域が減少し、緩衝部材１８は、長期にわたって品質が確保される。
また、緩衝部材１８を凹部１７に収納し、固定するために、従来必要としていたストッパ部材１５にわざわざ溝部を加工するといった面倒な加工は不要である。 According to the electromagnetic switch having the above configuration, the buffer member 18 is housed in the recess 17 formed in the stopper member 15, and one end surface of the shock absorber 18 abuts against the lower surface of the switch case 1 outside the movable iron core 4 in the radial direction. The other end surface has a column portion 20 in contact with the bottom surface of the recess 17, and the movement of the buffer member 18 in the axial direction is restricted by the column portion 20.
Therefore, when assembling the electromagnetic switch, a large force is not required to fix the stopper member 15 in close contact with the switch case 1, and it can be easily fixed.
Further, in the buffer member 18, only the column portion 20 is always sandwiched between the switch case 1 and the stopper member 15 and receives the surface pressure, and the region receiving the surface pressure is reduced compared to the conventional one. The quality of the buffer member 18 is ensured over a long period of time.
Further, in order to house and fix the buffer member 18 in the recess 17, troublesome processing such as processing the groove on the stopper member 15 which has been conventionally required is unnecessary.

また、柱部２０は、先端部において先端面に向かって断面積が縮小した小径部２０ａを有しているので、緩衝部材１８が凹部１７内に収納された際にストッパ部材１５の上面から柱部２０が突出する距離が少々大きくても、スイッチケース１にストッパ部材１５を密接して固定するのに、固定力がさほど大きく増加せず、従って柱部２０の軸線方向の寸法の許容範囲を広げることができる。   Moreover, since the column part 20 has the small diameter part 20a which cross-sectional area reduced toward the front end surface in the front-end | tip part, when the buffer member 18 is accommodated in the recessed part 17, it is column from the upper surface of the stopper member 15. Even if the distance at which the portion 20 protrudes slightly is large, the fixing force does not increase so much in order to fix the stopper member 15 in close contact with the switch case 1, so the allowable range of the axial dimension of the column portion 20 is increased. Can be spread.

また、緩衝部材１８は、可動鉄心４の内側に突出した中空の係止部２２を有しているので、係止部２２は弾性変形し易くなり、ワッシャ１９を係止部２２に係止する際の緩衝部材１８の破損を低減することができる。
また、係止部２２のストッパ部２２ａで、ワッシャ１９が係止され、係止部２２からのワッシャ１９の抜けを防止することができる。 Moreover, since the buffer member 18 has the hollow latching | locking part 22 which protruded inside the movable iron core 4, the latching | locking part 22 becomes easy to elastically deform and the washer 19 is latched to the latching | locking part 22. The damage of the buffer member 18 at the time can be reduced.
Further, the washer 19 is locked by the stopper portion 22a of the locking portion 22, and the washer 19 can be prevented from coming off from the locking portion 22.

また、緩衝部材１８は、ストッパ部材１５側に突出した複数個の変形部２１を有しており、可動鉄心４がワッシャ１９に衝突したときに、この変形部２１が弾性変形して可動鉄心４による衝撃力を吸収するので、係止部２２等の他の部位での衝撃力による破損を防止することができる。   The buffer member 18 has a plurality of deformed portions 21 protruding toward the stopper member 15, and when the movable iron core 4 collides with the washer 19, the deformable portion 21 is elastically deformed to move the movable iron core 4. Since the impact force due to is absorbed, breakage due to the impact force at other portions such as the locking portion 22 can be prevented.

また、変形部２１は、先端部において先端面に向かって断面積が縮小した小径部２１ａを有しているので、衝撃力に対しての変形部２１の軸線方向の弾性変形量が増大し、それだけ緩衝部材１８に対する衝撃時間が長くなることから、緩衝部材１８に対する衝撃力が緩和され、衝撃による緩衝部材１８の破損を低減することができる。
また、変形部２１は係止部２２を中心にして、周方向に等間隔で形成されているので、緩衝部材１８は、可動鉄心４からの衝撃力を均等に受け、緩衝部材１８は、長期にわたって品質が確保される。 In addition, since the deformable portion 21 has a small diameter portion 21a whose cross-sectional area is reduced toward the distal end surface at the distal end portion, the amount of elastic deformation in the axial direction of the deformable portion 21 with respect to an impact force increases. Since the impact time with respect to the buffer member 18 is increased accordingly, the impact force with respect to the buffer member 18 is relieved, and damage to the buffer member 18 due to the impact can be reduced.
In addition, since the deformable portion 21 is formed at equal intervals in the circumferential direction with the locking portion 22 as the center, the buffer member 18 receives the impact force from the movable iron core 4 evenly, and the buffer member 18 Quality is ensured throughout.

また、緩衝部材１８は、周側面に径方向に突出して形成され先端面が凹部１７の内周壁面に当接した抜け止め部２４を有しているので、電磁スイッチの組立工程において、例えばストッパ部材１５を凹部１７が下向きの状態にしても、緩衝部材１８がストッパ部材１５から脱落することはなく、組立の作業性が向上する。   Further, since the buffer member 18 has a retaining portion 24 that protrudes in the radial direction on the peripheral side surface and has a tip end surface that abuts against the inner peripheral wall surface of the concave portion 17. Even when the member 15 is in the state in which the concave portion 17 faces downward, the buffer member 18 does not fall off from the stopper member 15, and the workability of assembly is improved.

なお、上記の実施の形態では、柱部２０の小径部２０ａは円錐形状、変形部２１の小径部２１ａは曲面形状としたが、勿論この形状に限定されるものではなく、先端面に向かって横断面積が小さくなる形状のものであればよい。   In the above-described embodiment, the small-diameter portion 20a of the column portion 20 is conical, and the small-diameter portion 21a of the deformable portion 21 is a curved shape. Any shape having a small cross-sectional area may be used.

この発明の実施の形態１の電磁スイッチを示す断面図である。It is sectional drawing which shows the electromagnetic switch of Embodiment 1 of this invention. 図１のワッシャを可動鉄心側から視たときの図である。It is a figure when the washer of FIG. 1 is seen from the movable iron core side. 図１の緩衝部材を可動鉄心側から視たときの図である。It is a figure when the buffer member of FIG. 1 is seen from the movable iron core side. 図１の緩衝部材をストッパ部材側から視たときの図である。It is a figure when the buffer member of FIG. 1 is seen from the stopper member side.

符号の説明Explanation of symbols

１ スイッチケース、２ 固定鉄心、３ ロッド、４ 可動鉄心、５ 第１のスプリング、７ 励磁コイル、９ 可動接点、１１ 固定接点、１５ ストッパ部材、１７ 凹部、１８ 緩衝部材、１９ ワッシャ、２０ 柱部、２０ａ 小径部、２１ 変形部、２１ａ 小径部、２２ 係止部、２２ａ ストッパ部、２４ 抜け止め部。   DESCRIPTION OF SYMBOLS 1 Switch case, 2 Fixed iron core, 3 Rod, 4 Movable iron core, 5 1st spring, 7 Excitation coil, 9 Movable contact, 11 Fixed contact, 15 Stopper member, 17 Recessed part, 18 Buffer member, 19 Washer, 20 Column part , 20a Small diameter part, 21 Deformation part, 21a Small diameter part, 22 Locking part, 22a Stopper part, 24 Retaining part.

Claims (6)

スイッチケースと、
このスイッチケースの内部に設けられ、通電時に磁力を発生する筒状の励磁コイルと、
この励磁コイルの端部に固定された固定鉄心と、
この固定鉄心に摺動可能に設けられ、固定接点と当接する可動接点を保持するロッドと、
前記励磁コイルに前記固定鉄心に対向して挿入された可動鉄心と、
この可動鉄心と前記固定鉄心との間に設けられ、可動鉄心を反固定鉄心側に付勢したスプリングと、
前記スイッチケースに連結され前記スプリングの弾性力により前記可動鉄心が反固定鉄心側へ移動したときの停止位置を規制したストッパ部材と、
前記スイッチケースと前記ストッパ部材との間に設けられ、前記スプリングの弾性力により前記可動鉄心のストッパ部材に対する衝撃力を緩和する緩衝部材と、
この緩衝部材に係止され前記可動鉄心と衝突するワッシャとを備え、
前記緩衝部材は、前記ストッパ部材に形成された凹部に収納されているとともに、前記可動鉄心の径方向の外側で一端面が前記スイッチケースに当接し、他端面が凹部の底面に当接した柱部を有していることを特徴とする電磁スイッチ。 A switch case,
A cylindrical excitation coil that is provided inside the switch case and generates a magnetic force when energized,
A fixed iron core fixed to the end of the exciting coil;
A rod that is slidably provided on the fixed iron core and holds a movable contact that contacts the fixed contact;
A movable iron core inserted into the exciting coil so as to face the fixed iron core;
A spring provided between the movable iron core and the fixed iron core, and biasing the movable iron core toward the anti-fixed iron core;
A stopper member that is connected to the switch case and restricts the stop position when the movable iron core moves to the anti-fixed iron core side by the elastic force of the spring;
A buffer member that is provided between the switch case and the stopper member and relaxes the impact force of the movable iron core against the stopper member by the elastic force of the spring;
A washer that is locked to the buffer member and collides with the movable iron core,
The buffer member is housed in a recess formed in the stopper member, and has a pillar whose one end surface is in contact with the switch case and the other end surface is in contact with the bottom surface of the recess. Electromagnetic switch characterized by having a part. 前記柱部は、先端部において先端面に向かって断面積が縮小した小径部を有していることを特徴とする請求項１に記載の電磁スイッチ。   2. The electromagnetic switch according to claim 1, wherein the column portion has a small-diameter portion whose cross-sectional area is reduced toward the distal end surface at the distal end portion. 前記緩衝部材は、前記可動鉄心の内側に突出した中空の係止部を有しており、この係止部に前記ワッシャが係止されていることを特徴とする請求項１または２に記載の電磁スイッチ。   The said buffer member has a hollow latching | locking part protruded inside the said movable iron core, The said washer is latched by this latching | locking part, The Claim 1 or 2 characterized by the above-mentioned. Electromagnetic switch. 前記緩衝部材は、前記ストッパ部材側に突出した変形部を有しており、前記可動鉄心が前記ワッシャに衝突したときに、この変形部が弾性変形することを特徴とする請求項１〜３の何れか１項に記載の電磁スイッチ。   The said buffer member has a deformation | transformation part which protruded in the said stopper member side, and when this movable iron core collides with the said washer, this deformation | transformation part elastically deforms. The electromagnetic switch according to any one of claims. 前記変形部は、先端部において先端面に向かって断面積が縮小した小径部を有していることを特徴とする請求項４に記載の電磁スイッチ。   The electromagnetic switch according to claim 4, wherein the deformable portion has a small-diameter portion whose cross-sectional area is reduced toward the distal end surface at the distal end portion. 前記緩衝部材は、周側面に径方向に突出して形成され先端面が前記凹部の内周壁面に当接した抜け止め部を有していることを特徴とする請求項１〜５の何れか１項に記載の電磁スイッチ。   6. The buffer member according to claim 1, further comprising a retaining portion formed on the peripheral side surface so as to protrude in a radial direction and having a tip end surface in contact with an inner peripheral wall surface of the recess. The electromagnetic switch according to item.
JP2008292976A 2008-11-17 2008-11-17 Electromagnetic switch Expired - Fee Related JP4606490B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI575544B (en) * 2015-06-30 2017-03-21 Solen Electric Co Ltd Solenoid

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4931983B2 (en) * 2009-10-27 2012-05-16 三菱電機株式会社 Electromagnetic switch device for starter
DE102011081013A1 (en) * 2011-08-16 2013-02-21 Robert Bosch Gmbh Relay e.g. pure engaging relay, for thrust-screw-drive starter to turn on internal combustion engine of motor car, has damping element cooperating with magnets and arranged in region of drive bearing of relay between housing and anchor unit
FR2985111B1 (en) * 2011-12-23 2015-11-13 Valeo Equip Electr Moteur STARTER CONTACTOR COMPRISING A CONTACT PLATE HAVING A FERROMAGNETIC PORTION.
FR2994504B1 (en) * 2012-07-30 2015-09-04 Valeo Equip Electr Moteur ELECTROMAGNETIC POWER SWITCH PROVIDED WITH A CONTROL ROD FORMING A STOP PUSH
CN103578867A (en) * 2013-11-14 2014-02-12 贵州振华群英电器有限公司 Structure for improving vibration performance of contactor
KR200489517Y1 (en) * 2015-06-02 2019-06-28 엘에스산전 주식회사 Marnetic Switch
CN106783407B (en) * 2016-12-05 2018-08-03 浙江英洛华新能源科技有限公司 High voltage direct current relay insulation frame

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6175226U (en) * 1984-10-19 1986-05-21
JP2006155972A (en) * 2004-11-26 2006-06-15 Ohtsuka Poly-Tech Co Ltd Installation structure for electromagnetic relay
JP2006260846A (en) * 2005-03-15 2006-09-28 Denso Corp Electromagnetic switch
JP2006310248A (en) * 2005-03-28 2006-11-09 Matsushita Electric Works Ltd Contact device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4063074B2 (en) * 2002-12-26 2008-03-19 株式会社デンソー Electromagnetic switch for starter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6175226U (en) * 1984-10-19 1986-05-21
JP2006155972A (en) * 2004-11-26 2006-06-15 Ohtsuka Poly-Tech Co Ltd Installation structure for electromagnetic relay
JP2006260846A (en) * 2005-03-15 2006-09-28 Denso Corp Electromagnetic switch
JP2006310248A (en) * 2005-03-28 2006-11-09 Matsushita Electric Works Ltd Contact device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI575544B (en) * 2015-06-30 2017-03-21 Solen Electric Co Ltd Solenoid

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