JP5712718B2 - High-capacity cutoff relay for electric vehicles - Google Patents
High-capacity cutoff relay for electric vehicles Download PDFInfo
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Description
本発明は、電磁継電器に関する。 The present invention relates to an electromagnetic relay.
電磁継電器は電動式スイッチ装置であって自動車の電装部品などに使用されている。一般的な接点式電磁継電器について説明する。 The electromagnetic relay is an electric switch device, and is used for an electrical component of an automobile. A general contact type electromagnetic relay will be described.
電磁継電器は、電気回路にあって外部端子と接続した固定接点と、固定接点と当接、離間する可動接点を有している。可動接点はロッドの一端と連結し、ロッドの他端はプランジャと連結して連動して、可動接点部材を形成する。プランジャは固定鉄心と共に一の電磁コイルの内側にあって、プランジャと固定鉄心の間にはスプリングが設置されている。 The electromagnetic relay has a fixed contact connected to an external terminal in an electric circuit, and a movable contact that contacts and separates from the fixed contact. The movable contact is connected to one end of the rod, and the other end of the rod is connected to and interlocked with the plunger to form a movable contact member. The plunger is inside the one electromagnetic coil together with the fixed iron core, and a spring is installed between the plunger and the fixed iron core.
電磁継電器をオンにすると、一の電磁コイルが通電してプランジャと固定鉄心が磁化され、プランジャは固定鉄心に吸引される。プランジャと連動した可動接点も移動して、固定接点と当接することで電気回路が導通する。ここで、固定接点と固定鉄心を固定接点部材とする。 When the electromagnetic relay is turned on, one electromagnetic coil is energized, the plunger and the fixed iron core are magnetized, and the plunger is attracted to the fixed iron core. The movable contact that moves in conjunction with the plunger also moves and comes into contact with the fixed contact so that the electrical circuit is conducted. Here, the fixed contact and the fixed iron core are the fixed contact members.
電磁継電器をオフにすると、一の電磁コイルの通電が停止してプランジャと固定鉄心の間の吸引力が消滅する。プランジャはスプリングによって固定鉄心から引き離され、プランジャと連動した可動接点も移動して、固定接点と離間することで電気回路が遮断する。 When the electromagnetic relay is turned off, energization of one electromagnetic coil is stopped and the attractive force between the plunger and the fixed iron core disappears. The plunger is pulled away from the fixed iron core by the spring, and the movable contact that moves in conjunction with the plunger also moves to separate from the fixed contact, thereby interrupting the electric circuit.
電気自動車やハイブリッド自動車等に車載される電磁継電器には大きな電流が流れることから、電磁継電器をオンにして可動接点と固定接点が当接する直前と、オフにして可動接点と固定接点が離間した直後と、オン状態において走行による車両振動が生じたときに、可動接点と固定接点の間に隙間が微小な領域（以下、アーク発生領域と呼ぶ）が生じて、アークが発生する恐れがある。特に、電磁継電器がオン状態において走行による車両振動が生じたときのアークを防止するため、可動接点と固定接点の間には十分大きな吸引力を働かせている。 Since a large current flows through an electromagnetic relay mounted on an electric vehicle or a hybrid vehicle, the electromagnetic relay is turned on immediately before the movable contact and the fixed contact contact, and turned off immediately after the movable contact and the fixed contact are separated. When vehicle vibration occurs due to running in the on state, there is a possibility that an area having a very small gap (hereinafter referred to as an arc generation area) is generated between the movable contact and the fixed contact, and an arc is generated. In particular, a sufficiently large attractive force is applied between the movable contact and the fixed contact in order to prevent arcing when vehicle vibration is caused by traveling while the electromagnetic relay is on.
そのため、電磁継電器をオンにしたとき、可動接点部材の移動速度は必要以上に速くなり、可動接点部材と固定接点部材の衝突により、大きな衝突音と振動が発生することがある。また、電磁継電器をオフにしたときも、迅速に可動接点から固定接点を離間するため、強いスプリングを設置しており、プランジャが電磁継電器の底面に設置しているストッパ面と衝突して停止するとき、大きな衝突音と振動が発生することがある。 Therefore, when the electromagnetic relay is turned on, the moving speed of the movable contact member becomes higher than necessary, and a large collision sound and vibration may be generated due to the collision between the movable contact member and the fixed contact member. Also, even when the electromagnetic relay is turned off, a strong spring is installed to quickly move the fixed contact away from the movable contact, and the plunger collides with the stopper surface installed on the bottom surface of the electromagnetic relay and stops. Sometimes loud collision sounds and vibrations may occur.
この種の衝突音や振動を低減する装置として以下の特許文献１記載のものが知られている。この特許文献１記載の装置は、プランジャまたはストッパ面に弾性部材を取り付けており、プランジャとストッパ面の衝突を低減している。 A device described in Patent Document 1 below is known as a device for reducing this kind of collision noise and vibration. In the device described in Patent Document 1, an elastic member is attached to a plunger or a stopper surface, and collision between the plunger and the stopper surface is reduced.
特開２００４−２０７１３４ JP 2004-207134 A
しかしながら上記特許文献１記載の装置では、電磁継電器をオフにしたとき、プランジャとストッパ面の衝突による衝突音と振動は低減するものの、電磁継電器をオンにしたとき、可動接点部材と固定接点部材の衝突による衝突音と振動には効果がない。また弾性部材として主に用いられるゴムは劣化や環境により著しく弾性係数が変動するため、安定した低減効果が得られない。 However, in the device described in Patent Document 1, when the electromagnetic relay is turned off, the collision sound and vibration due to the collision between the plunger and the stopper surface are reduced. However, when the electromagnetic relay is turned on, the movable contact member and the fixed contact member are It has no effect on collision sound and vibration caused by collision. Moreover, since the elastic modulus of rubber mainly used as an elastic member varies significantly depending on deterioration and environment, a stable reduction effect cannot be obtained.
本発明は、可動接点を固定接点に当接するよう駆動したときに、可動接点部材と固定接点部材が当接しない領域の少なくても一部では、スプリングの弾性力、または一の電磁コイルの電磁力に加えて、可動接点部材に制動力を作用させ移動速度を低減する減速手段を備え、減速手段を有する部分よりも可動接点部材が固定接点部材に近づく領域には、スプリングの弾性力、または一の電磁コイルの電磁力の他には可動接点部材に制動力を作用させて移動速度を低減する手段を備えていないこととする。 In the present invention, when the movable contact is driven to come into contact with the fixed contact, at least a part of the region where the movable contact member and the fixed contact member do not contact at least part of the elastic force of the spring or the electromagnetic force of one electromagnetic coil. In addition to the force, the movable contact member is provided with a deceleration means that applies a braking force to reduce the moving speed, and in the region where the movable contact member is closer to the fixed contact member than the portion having the deceleration means, In addition to the electromagnetic force of one electromagnetic coil, no means for reducing the moving speed by applying a braking force to the movable contact member is provided.
本発明によれば、電磁継電器をオンにしたとき、安定して可動接点部材と固定接点部材の衝突音と振動を低減できる。また、従来の継電器と比較して、アーク発生領域内においては、可動接点部材に働く吸引力および離間力はほぼ同等であり、アークの発生も抑えることができる。 According to the present invention, when the electromagnetic relay is turned on, it is possible to stably reduce the collision noise and vibration between the movable contact member and the fixed contact member. Further, in comparison with the conventional relay, in the arc generation region, the attractive force and the separation force acting on the movable contact member are substantially equal, and the generation of the arc can be suppressed.
以下、図１から図９を参照して本発明の実施の形態を説明する。図１は本実施の形態に係る電磁継電器を含む電源回路の一部を示す電気回路図である。本発明における電磁継電器１は、バッテリパック２の一部として電源回路の途中にあるジャンクションボックス３に内蔵されバッテリ４からの電気をインバータやＤＣ／ＤＣコンバータへと流すブレーカ装置として機能している。 Hereinafter, embodiments of the present invention will be described with reference to FIGS. FIG. 1 is an electric circuit diagram showing a part of a power supply circuit including an electromagnetic relay according to the present embodiment. The electromagnetic relay 1 according to the present invention is built in a junction box 3 in the middle of a power supply circuit as a part of the battery pack 2 and functions as a breaker device for flowing electricity from the battery 4 to an inverter or a DC / DC converter.
図２は本実施の形態に係る電磁継電器の断面図である。本実施の電磁継電器は、以下で詳述する一の電磁コイル５、コイルボビン６、プランジャ７、固定鉄心８、可動接点９、固定接点１０、プランジャキャップ１１、ストッパ１２、ロッド１３、一のスプリング１４、二のスプリング１５で構成されている。またプランジャ７と可動接点９を合わせて可動接点部材３１、固定鉄心８と固定接点１０を合わせて固定接点部材３２とする。 FIG. 2 is a cross-sectional view of the electromagnetic relay according to the present embodiment. The electromagnetic relay of the present embodiment includes one electromagnetic coil 5, coil bobbin 6, plunger 7, fixed iron core 8, movable contact 9, fixed contact 10, plunger cap 11, stopper 12, rod 13, and one spring 14 described in detail below. , Two springs 15 are formed. The plunger 7 and the movable contact 9 are combined to form a movable contact member 31, and the fixed iron core 8 and the fixed contact 10 are combined to form a fixed contact member 32.
本実施の形態に係る電磁継電器は、円筒状のコイルボビン６に一の電磁コイル５を巻回しており、コイルボビン６は内側にプランジャ７と固定鉄心８を備えている。ここでコイルボビン６の軸方向を上下方向と定義すると、プランジャ７は上下に固定鉄心８と並んで配置されている。プランジャ７および固定鉄心８とコイルボビン６の間には、非磁性材料からなる円筒状のプランジャキャップ１１があって、プランジャ７と固定鉄心８の外径はそれぞれプランジャキャップ１１の内径と一致している。プランジャキャップ１１の底面にはストッパ１２があり、プランジャ７はプランジャキャップ１１の上下方向に、固定鉄心８とストッパ１２の範囲内で移動が可能である。プランジャ７と固定鉄心８の間には一のスプリング１４が配置されており、プランジャ７を固定鉄心８から引き離してストッパ１２に押し付ける方向に弾性力が働いている。可動鉄心９の下面には二のスプリング１５が配置されており、可動接点９を固定接点１０に押し付ける方向に力が働いている。 In the electromagnetic relay according to the present embodiment, one electromagnetic coil 5 is wound around a cylindrical coil bobbin 6, and the coil bobbin 6 includes a plunger 7 and a fixed iron core 8 inside. Here, if the axial direction of the coil bobbin 6 is defined as the vertical direction, the plunger 7 is arranged side by side with the fixed iron core 8 in the vertical direction. Between the plunger 7 and the fixed iron core 8 and the coil bobbin 6, there is a cylindrical plunger cap 11 made of a nonmagnetic material, and the outer diameters of the plunger 7 and the fixed iron core 8 coincide with the inner diameter of the plunger cap 11. . A stopper 12 is provided on the bottom surface of the plunger cap 11, and the plunger 7 can move in the vertical direction of the plunger cap 11 within the range of the fixed iron core 8 and the stopper 12. One spring 14 is disposed between the plunger 7 and the fixed iron core 8, and an elastic force acts in a direction in which the plunger 7 is pulled away from the fixed iron core 8 and pressed against the stopper 12. Two springs 15 are disposed on the lower surface of the movable iron core 9, and a force acts in a direction in which the movable contact 9 is pressed against the fixed contact 10.
図３は本実施の第１の形態に係るプランジャ７を示した図である。プランジャ７の側面には少なくても一つの突起１６が備えられている。 FIG. 3 is a view showing the plunger 7 according to the first embodiment. At least one protrusion 16 is provided on the side surface of the plunger 7.
図４ａは、本実施の第１の形態に係るプランジャキャップ１１を横から見た断面図であり、図４ｂは、図４ａのＡ−Ａから見た断面図である。プランジャキャップ１１の内面には少なくても一つのガイド１７が備えられており、突起１６が移動できる。ガイド１７は、可動接点９と固定接点１０が当接していない領域の少なくても一部、すなわちアーク発生領域外の一部において、軸線の傾きが可動接点部材３１の移動方向である上下方向とは異なっており、またアーク発生領域外よりも可動接点９が固定接点１０に近づく領域、すなわちアーク発生領域において、軸線の傾きが可動接点部材３１の移動方向である上下方向と同じになっている。 4a is a cross-sectional view of the plunger cap 11 according to the first embodiment viewed from the side, and FIG. 4b is a cross-sectional view of the plunger cap 11 taken along line AA in FIG. 4a. At least one guide 17 is provided on the inner surface of the plunger cap 11 so that the protrusion 16 can move. In at least a part of the region where the movable contact 9 and the fixed contact 10 are not in contact, that is, a part outside the arc generation region, the guide 17 has a vertical direction in which the inclination of the axis is the moving direction of the movable contact member 31. Are different, and in the region where the movable contact 9 is closer to the fixed contact 10 than outside the arc generation region, that is, in the arc generation region, the inclination of the axis is the same as the vertical direction that is the moving direction of the movable contact member 31. .
図５は、本実施の第１の形態に係る電磁継電器をオンにしたとき、突起１６に働く力の方向を示した図である。ガイド１７の軸線の傾きが上下方向とは異なる部分において、突起１６には、一の電磁コイル５による電磁力、二のスプリング１５による弾性力、より受ける上方向の力１８と、一のスプリング１４による弾性力、重力、より受ける下方向の力１９と、力１８、１９とは別の、突起１６とガイド１７の接触によって生じる摩擦力２０が、突起１６の移動方向とは反対方向に働く。また上方向の力１８はガイドの進行方向にベクトル分解される。その結果、突起１６を備えた可動接点部材３１の移動速度は低減する一方で、ガイド１７の軸線の傾きが上下方向である部分では、力１８、１９とは別の、摩擦力２０は働かない。よって、可動接点９と固定接点１０の間の吸引力は、同一サイズの電磁コイル、スプリングを有する電磁継電器と比較して同じであり、アークの発生を抑えることができる。 FIG. 5 is a diagram showing the direction of the force acting on the protrusion 16 when the electromagnetic relay according to the first embodiment is turned on. In a portion where the inclination of the axis of the guide 17 is different from the vertical direction, the projection 16 has an electromagnetic force by one electromagnetic coil 5, an elastic force by the second spring 15, an upward force 18, and a single spring 14. The downward force 19 received by the elastic force, gravity, and the frictional force 20 generated by the contact between the protrusion 16 and the guide 17, which is different from the forces 18 and 19, acts in the direction opposite to the movement direction of the protrusion 16. The upward force 18 is vector-decomposed in the direction of travel of the guide. As a result, the moving speed of the movable contact member 31 provided with the protrusions 16 is reduced, but the frictional force 20 other than the forces 18 and 19 does not work in a portion where the inclination of the axis of the guide 17 is in the vertical direction. . Therefore, the attractive force between the movable contact 9 and the fixed contact 10 is the same as that of the electromagnetic relay having the same size electromagnetic coil and spring, and the generation of the arc can be suppressed.
図６は本実施の第１の形態に係る電磁継電器をオフにしたとき、すなわち一の電磁コイル５の導電を停止したとき、突起１６に働く力の方向を示した図である。ガイド１７の軸線の傾きが上下方向とは異なる部分において、突起１６には、二のスプリング１５による弾性力、より受ける上方向の力２１と、一のスプリング１４による弾性力、重力、より受ける下方向の力２２と、力２１、２２とは別の、突起１６とガイド１７の接触によって生じる摩擦力２３が突起１６の移動方向とは反対方向に働く。また下方向の力２２はガイドの進行方向にベクトル分解される。その結果、突起１６を備えた可動接点部材３１の移動速度は低減する一方で、ガイド１７の軸線の傾きが上下方向である部分では、力２１、２２とは別の、摩擦力２３は働かない。よって、可動接点９と固定接点１０の離間力は、同一サイズの電磁コイル、スプリングを有する電磁継電器と比較して同じであり、アークの発生も抑えることができる。 FIG. 6 is a diagram showing the direction of the force acting on the protrusion 16 when the electromagnetic relay according to the first embodiment is turned off, that is, when the conduction of one electromagnetic coil 5 is stopped. In the portion where the inclination of the axis of the guide 17 is different from the vertical direction, the protrusion 16 has an elastic force by the second spring 15, an upward force 21 received by the second spring 15, an elastic force by the one spring 14, and a lower force received by gravity The frictional force 23 generated by the contact between the protrusion 16 and the guide 17, which is different from the direction force 22 and the forces 21 and 22, acts in the direction opposite to the movement direction of the protrusion 16. Further, the downward force 22 is vector-decomposed in the guide traveling direction. As a result, while the moving speed of the movable contact member 31 provided with the protrusion 16 is reduced, the frictional force 23 other than the forces 21 and 22 does not work in the portion where the axis of the guide 17 is inclined in the vertical direction. . Therefore, the separation force between the movable contact 9 and the fixed contact 10 is the same as that of the electromagnetic relay having the same size electromagnetic coil and spring, and the generation of arc can be suppressed.
プランジャ７に備えられた突起１６と、プランジャキャップ１１に備えられたガイド１７を２個以上設けることで、より大きな摩擦力２０、２３を発生させ、プランジャ７の移動速度の減速効果を高めることができる。 By providing two or more projections 16 provided on the plunger 7 and two or more guides 17 provided on the plunger cap 11, it is possible to generate larger frictional forces 20 and 23 and to increase the speed reduction effect of the movement speed of the plunger 7. it can.
プランジャ７に備えられた突起１６の断面を円形を含めた楕円形にすることで、突起１６とガイド１７の摩擦による摩耗を低減することができる。 By making the cross section of the protrusion 16 provided in the plunger 7 into an oval shape including a circle, wear due to friction between the protrusion 16 and the guide 17 can be reduced.
一のスプリング１４をプランジャ７および固定鉄心８に固定することで、ガイド１７の軸線の傾きが上下方向ではない部分では、一のスプリング１４が回転方向に捩れるため、捩りを戻す方向に力が働くことから、オフ時において、プランジャ７および可動接点９の移動速度を減速することができる。 By fixing the one spring 14 to the plunger 7 and the fixed iron core 8, since the one spring 14 is twisted in the rotational direction at a portion where the inclination of the axis of the guide 17 is not in the vertical direction, a force is exerted in the direction to return the twist. Since it works, the moving speed of the plunger 7 and the movable contact 9 can be reduced at the time of off.
なお、今回はプランジャ７に突起１６を備え、プランジャキャップ１１にガイド１７を備えて説明したが、プランジャ７にガイド１７を備え、プランジャキャップ１１に突起１６を備えた場合も効果は同じである。 Although the plunger 7 is provided with the protrusion 16 and the plunger cap 11 is provided with the guide 17 this time, the effect is the same when the plunger 7 is provided with the guide 17 and the plunger cap 11 is provided with the protrusion 16.
また、今回はプランジャ７には、電磁継電器をオンにしたとき一の電磁コイル５による電磁力が働き、電磁継電器をオフにしたとき一のスプリング１４による弾性力が働くよう説明したが、プランジャ７には、電磁継電器をオンにしたき一のスプリング１４による弾性力が働き、電磁継電器１をオフにしたとき一の電磁コイル５による電磁力が働く場合も効果は同じである。 Further, this time, it has been described that the plunger 7 is subjected to an electromagnetic force by one electromagnetic coil 5 when the electromagnetic relay is turned on and an elastic force by one spring 14 when the electromagnetic relay is turned off. The same effect is obtained when the elastic force of the first spring 14 is activated when the electromagnetic relay is turned on and the electromagnetic force of the first electromagnetic coil 5 is activated when the electromagnetic relay 1 is turned off.
図７は本実施の第２の形態に係る電磁継電器の断面図である。アーク発生領域外において、プランジャ７と固定鉄心８の間に吸引力を働かせる一の電磁コイル５とは別の、二の電磁コイル２４を、プランジャ７と固定鉄心８の外側に配置する。 FIG. 7 is a cross-sectional view of the electromagnetic relay according to the second embodiment. Outside the arc generation region, two electromagnetic coils 24, which are different from the one electromagnetic coil 5 that applies an attractive force between the plunger 7 and the fixed iron core 8, are arranged outside the plunger 7 and the fixed iron core 8.
図８は本実施の第２の形態に係る電磁継電器をオンにしたとき、プランジャ７に働く力の方向を示した図である。ここで、二の電磁コイル２４は、一の電磁コイル５とは反対向きに電磁力２７が発生するよう、導線を巻回するか、電流の流す方向を決める。二の電磁コイル２４の内側の部分において、プランジャ７には、一の電磁コイル５による電磁力、二のスプリング１５による弾性力、より受ける上方向の力２５と、一のスプリング１４による弾性力、重力、より受ける下方向の力２６と、力２５、２６とは別の、二の電磁コイル２４によって生じる電磁力２７がプランジャ７の移動方向とは反対方向に働く。その結果、可動接点部材３１の移動速度は低減し、可動接点部材３１と固定接点部材３２の衝突は低減する。一方で、二の電磁コイル２４の内側ではない部分において、プランジャ７には、力２５、２６とは別の、電磁力２７は働かない。よって、可動接点９と固定接点１０の間の吸引力は、同一サイズの電磁コイル、スプリングを有する電磁継電器と比較して同じであり、アークの発生も抑えることができる。 FIG. 8 is a diagram showing the direction of the force acting on the plunger 7 when the electromagnetic relay according to the second embodiment is turned on. Here, the second electromagnetic coil 24 winds the conducting wire or determines the direction of current flow so that the electromagnetic force 27 is generated in the opposite direction to the one electromagnetic coil 5. In the inner part of the second electromagnetic coil 24, the plunger 7 has an electromagnetic force by the one electromagnetic coil 5, an elastic force by the second spring 15, an upward force 25 received by the plunger 7, an elastic force by the one spring 14, A downward force 26 received by gravity and an electromagnetic force 27 generated by the second electromagnetic coil 24, which is different from the forces 25 and 26, act in a direction opposite to the moving direction of the plunger 7. As a result, the moving speed of the movable contact member 31 is reduced, and the collision between the movable contact member 31 and the fixed contact member 32 is reduced. On the other hand, an electromagnetic force 27 other than the forces 25 and 26 does not act on the plunger 7 in a portion that is not inside the second electromagnetic coil 24. Therefore, the attractive force between the movable contact 9 and the fixed contact 10 is the same as that of the electromagnetic relay having the same size electromagnetic coil and spring, and the generation of arc can be suppressed.
なお、アーク発生領域よりも、アーク発生領域外の少なくても一部において、一の電磁コイル５の導線の巻回数が少ない部分を有する場合、電磁継電器をオンにしたとき、アーク発生領域外において、プランジャ７を固定鉄心８に吸引する方向に発生する一の電磁コイル５による電磁力が低減されるので、可動接点部材３１の移動速度を低減できる。一方で、アーク発生領域外での一の電磁コイル５による電磁力が低減することで、アーク発生領域においても、微弱ながら、可動接点部材３１の移動速度が低減される可能性があり、同一サイズの電磁コイル、スプリングを有する電磁継電器と比較して、アークの発生に対する効果は低くなる可能性がある。 In addition, when at least a part outside the arc generation region has a portion where the number of windings of the conductive wire of one electromagnetic coil 5 is smaller than the arc generation region, when the electromagnetic relay is turned on, outside the arc generation region Since the electromagnetic force by the one electromagnetic coil 5 generated in the direction in which the plunger 7 is attracted to the fixed iron core 8 is reduced, the moving speed of the movable contact member 31 can be reduced. On the other hand, by reducing the electromagnetic force by one electromagnetic coil 5 outside the arc generation area, the moving speed of the movable contact member 31 may be reduced in the arc generation area, although it is weak, the same size Compared with an electromagnetic relay having an electromagnetic coil and a spring, there is a possibility that the effect on the generation of an arc is reduced.
同様に、アーク発生領域外の少なくても一部において、一の電磁コイル５が巻回されていない部分を有する場合、一の電磁コイル５で巻回されていない部分では、電磁継電器をオンにしたとき、アーク発生領域外において、プランジャ７を固定鉄心８に吸引する方向に発生する一の電磁コイル５による電磁力が発生しなくなる。一方で、アーク発生領域外での一の電磁コイル５による電磁力が発生しなくなることで、アーク発生領域においても、微弱ながら、可動接点部材３１の移動速度が低減される可能性があり、同一サイズの電磁コイル、スプリングを有する電磁継電器と比較して、アークの発生に対する効果は低くなる可能性がある。 Similarly, in the case where at least a part outside the arc generation region has a portion where the one electromagnetic coil 5 is not wound, the electromagnetic relay is turned on in a portion where the one electromagnetic coil 5 is not wound. In this case, the electromagnetic force generated by the one electromagnetic coil 5 generated in the direction in which the plunger 7 is attracted to the fixed iron core 8 is not generated outside the arc generation region. On the other hand, there is a possibility that the moving speed of the movable contact member 31 may be reduced in the arc generation region because the electromagnetic force by the one electromagnetic coil 5 is not generated outside the arc generation region. Compared to electromagnetic relays having sizes of electromagnetic coils and springs, the effect on arc generation may be reduced.
なお、可動接点９のストローク距離を短くすれば、電磁継電器をオンしたときに、可動接点部材３１と固定接点部材３２の衝突時の移動速度を低減することができる。しかし、可動接点９と固定接点１０にはアークの発生を防ぐために一定の間隔が必要であり、本発明は、その間隔を保った上で、可動接点９の移動速度を低減するものである。 If the stroke distance of the movable contact 9 is shortened, the moving speed at the time of collision between the movable contact member 31 and the fixed contact member 32 can be reduced when the electromagnetic relay is turned on. However, the movable contact 9 and the fixed contact 10 need a certain interval in order to prevent the occurrence of an arc, and the present invention reduces the moving speed of the movable contact 9 while maintaining the interval.
また、本発明におけるアーク発生領域の範囲とは、継電器の形状や大きさにより異なる。 Further, the range of the arc generation region in the present invention differs depending on the shape and size of the relay.
以上、例をあげて本実施の形態を説明したが、今回の実施例に限られるものではなく、この発明の要旨を逸脱しない範囲の設計変更については本発明に含まれる。 Although the present embodiment has been described with reference to examples, the present invention is not limited to the present embodiment, and design changes within a scope not departing from the gist of the present invention are included in the present invention.
1…継電器
5…一の電磁コイル
6…コイルボビン
7…プランジャ
8…固定鉄心
9…可動接点
10…固定接点
11…プランジャキャップ
14…一のスプリング
16…突起
17…ガイド
24…二の電磁コイル
1 ... Relay
5 ... One electromagnetic coil
6 ... Coil bobbin
7 ... plunger
8 ... Fixed iron core
9 ... Moveable contact
10: Fixed contact
11 ... Plunger cap
14 ... One spring
16 ... Protrusions
17 ... Guide
24… Second electromagnetic coil
Claims (8)
前記可動接点部材を前記固定接点部材に当接するよう駆動したときに、前記可動接点部材と前記固定接点部材が当接しない領域の少なくとも一部では、前記スプリングの弾性力、または前記一の電磁コイルの電磁力に加えて、前記可動接点部材に制動力を作用させ移動速度を低減する減速手段を備え、前記減速手段を有する部分よりも前記可動接点部材が前記固定接点部材に近づく領域には、前記スプリングの弾性力、または前記一の電磁コイルの電磁力の他には前記可動接点部材に制動力を作用させて移動速度を低減する手段を備えないことを特徴とする継電器。 The movable contact member is driven in one direction by one electromagnetic force of one electromagnetic coil, and the movable contact member is driven in the other direction by the elastic force of a spring so that the movable contact member contacts the fixed contact member. In a remote relay,
When the movable contact member is driven to contact the fixed contact member, at least part of the region where the movable contact member and the fixed contact member do not contact each other, the elastic force of the spring or the one electromagnetic coil In addition to the electromagnetic force of A relay having no means for reducing a moving speed by applying a braking force to the movable contact member in addition to the elastic force of the spring or the electromagnetic force of the one electromagnetic coil.
前記減速手段は、摩擦抵抗を用いて、前記可動接点部材の移動速度を低減することを特徴とする継電器。 The relay according to claim 1,
The relay according to claim 1, wherein the speed reducing unit reduces a moving speed of the movable contact member using a frictional resistance.
前記可動接点部材は収納部材に収納されており、前記可動接点部材と前記収納部材の少なくても一方には突起が備えられ、他方には前記突起が移動できるガイドが備えられ、前記可動接点部材と前記固定接点部材の当接しない部分では、前記ガイドの軸線の傾きが、前記可動接点部材の移動方向と異なる部分を有しており、前記可動接点部材と前記固定接点部材の当接する直前の部分では、前記ガイドの軸線の傾きが、前記可動接点部材の移動方向と平行していることを特徴とする継電器。 The relay according to claim 1,
The movable contact member is housed in a housing member, and at least one of the movable contact member and the housing member is provided with a protrusion, and the other is provided with a guide through which the protrusion can move, the movable contact member And the portion where the fixed contact member does not contact has a portion where the inclination of the axis of the guide is different from the moving direction of the movable contact member, and immediately before the contact between the movable contact member and the fixed contact member occurs. In the portion, the relay is characterized in that an inclination of an axis of the guide is parallel to a moving direction of the movable contact member.
前記突起は少なくても１個備えられており、前記ガイドも少なくても１個備えられていることを特徴とする継電器。 The relay according to claim 3,
The relay is characterized in that at least one protrusion is provided and at least one guide is provided.
前記突起の断面は楕円形をしていることを特徴とする継電器。 The relay according to claim 3,
A relay characterized in that a cross section of the protrusion has an elliptical shape.
前記減速手段は、電磁力を用いて、前記可動接点部材の移動速度を低減することを特徴とする継電器。 The relay according to claim 1,
The said deceleration means reduces the moving speed of the said movable contact member using electromagnetic force, The relay characterized by the above-mentioned.
前記一の電磁コイルが、前記可動接点部材と前記固定接点部材に備えられており、二の電磁コイルが、前記可動接点部材と前記固定接点部材の当接しない部分に備えられ、前記二の電磁コイルは、前記一の電磁コイルとは反対向きに巻回されていることを特徴とする継電器。 The relay according to claim 6,
The one electromagnetic coil is provided in the movable contact member and the fixed contact member, and the second electromagnetic coil is provided in a portion where the movable contact member and the fixed contact member are not in contact with each other. The relay, wherein the coil is wound in a direction opposite to the one electromagnetic coil.
前記一の電磁コイルが、前記可動接点部材と前記固定接点部材に備えられており、前記二の電磁コイルが、前記可動接点部材と前記固定接点部材の当接しない部分に備えられ、前記二の電磁コイルは、前記一の電磁コイルとは同じ向きに巻回されていて、反対向きに電流が流れることを特徴とする継電器。 The relay according to claim 6,
The one electromagnetic coil is provided in the movable contact member and the fixed contact member, and the second electromagnetic coil is provided in a portion where the movable contact member and the fixed contact member do not contact each other. The relay is characterized in that the electromagnetic coil is wound in the same direction as the one electromagnetic coil, and a current flows in the opposite direction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011062145A JP5712718B2 (en) | 2011-03-22 | 2011-03-22 | High-capacity cutoff relay for electric vehicles |
| CN2012200955818U CN202534600U (en) | 2011-03-22 | 2012-03-14 | High-capacity circuit breaker relay for electric vehicle |
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| JP2011062145A JP5712718B2 (en) | 2011-03-22 | 2011-03-22 | High-capacity cutoff relay for electric vehicles |
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| JP2012199058A JP2012199058A (en) | 2012-10-18 |
| JP5712718B2 true JP5712718B2 (en) | 2015-05-07 |
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| JP2011062145A Expired - Fee Related JP5712718B2 (en) | 2011-03-22 | 2011-03-22 | High-capacity cutoff relay for electric vehicles |
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| JP6342684B2 (en) * | 2013-04-01 | 2018-06-13 | 独立行政法人国立高等専門学校機構 | Solar power system |
| KR101869719B1 (en) * | 2014-09-15 | 2018-06-21 | 엘에스산전 주식회사 | Elctromagnet Contactor |
| JP2017224438A (en) * | 2016-06-14 | 2017-12-21 | 富士電機機器制御株式会社 | Electromagnetic contactor |
| CN107068482B (en) * | 2017-06-16 | 2019-08-23 | 沈阳工业大学 | It is a kind of to rotate the vacuum circuit breaker cut-off |
| CN107086150B (en) * | 2017-06-16 | 2019-09-17 | 沈阳工业大学 | It is a kind of to rotate the electrode structure cut-off |
| JP6668518B1 (en) * | 2019-01-30 | 2020-03-18 | マレリ株式会社 | RELAY DEVICE AND RELAY DEVICE CONTROL METHOD |
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| JPS51150667A (en) * | 1975-06-20 | 1976-12-24 | Oki Electric Ind Co Ltd | Electromagnetic solenoid |
| JPS6039805A (en) * | 1983-08-15 | 1985-03-01 | Takahashi Shojiro | Silent ac solenoid |
| JP4063074B2 (en) * | 2002-12-26 | 2008-03-19 | 株式会社デンソー | Electromagnetic switch for starter |
| JP4896165B2 (en) * | 2009-01-14 | 2012-03-14 | リンナイ株式会社 | Solenoid open / close valve |
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