JP2008210641A - Relay - Google Patents

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JP2008210641A
JP2008210641A JP2007045826A JP2007045826A JP2008210641A JP 2008210641 A JP2008210641 A JP 2008210641A JP 2007045826 A JP2007045826 A JP 2007045826A JP 2007045826 A JP2007045826 A JP 2007045826A JP 2008210641 A JP2008210641 A JP 2008210641A
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magnetic
magnetic bodies
relay
contacts
bodies
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Toshiaki Oya
敏明 應矢
Motoo Nakai
基生 中井
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JTEKT Corp
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JTEKT Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a relay with power consumption curtailed and downsized. <P>SOLUTION: In the relay switching an electric circuit, a magnetic field is impressed on opposed parts of a first and a second magnetic bodies 4a, 4b in a direction nearly crossing their contacting-separating direction, and the same magnetic poles are induced to the positions opposed to the first and the second magnetic bodies 4a, 4b to have mutually repulsive force generated. A first and a second support bodies 1a, 1b are made to bend due to action of the repulsive force, and a first and a second contact points 2a, 2b are made in or out of contact with each other to open or close the electric circuit. Since repulsive force acting between the first and the second magnetic bodies 4a, 4b are utilized, they can be made opposed to each other with a narrow gap, and since force acting between the first and the second magnetic bodies 4a, 4b is in inverse proportion to square of a distance, power consumption is aimed to be curtailed and the relay can be downsized, as compared with a conventional one utilizing magnetism. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、例えば、操舵部材の操作に応じてモータを駆動して操舵を補助する電動パワーステアリング装置において、異常発生時に前記モータの駆動回路に供給される電流を遮断するために用いられる継電器に関する。   The present invention relates to a relay used to cut off a current supplied to a motor drive circuit when an abnormality occurs, for example, in an electric power steering apparatus that assists steering by driving a motor in accordance with an operation of a steering member. .

近年の車両には、操舵部材の操作に応じてモータを駆動し、該モータが発生する回転力を舵取機構に加えて操舵を補助する電動パワーステアリング装置等、モータを駆動源として所定の動作をなす多くの装置が装備されている。この種の装置を備える車両においては、前記モータの駆動回路と電源との間、あるいは駆動回路とモータとの間に、過電流、過電圧等の異常発生時に遮断動作をする継電器を介装し、前記モータを含めた装置を保護するようにしている。   In recent vehicles, a motor is driven in accordance with an operation of a steering member, and a predetermined operation is performed using a motor as a drive source, such as an electric power steering device that assists steering by adding a rotational force generated by the motor to a steering mechanism. It is equipped with many devices that make up. In a vehicle equipped with this type of device, between the motor drive circuit and the power supply, or between the drive circuit and the motor, a relay that performs a shut-off operation when an abnormality such as overcurrent or overvoltage occurs is interposed, The device including the motor is protected.

特許文献1に開示された継電器は、付勢バネにより相互に離反する向きに付勢された固定コア及び可動コアと、両コアを囲繞するコイルと、前記可動コアの移動に連動し、固定接点に対して接触・離反する可動接点とを備える電磁継電器である。この継電器においては、正常時には、コイルに通電することにより、付勢バネの付勢に抗して可動コアが固定コアに磁着力により吸引され、可動接点を固定接点に押し付けて閉路状態を実現することができ、異常発生時には、コイルへの電流を遮断することにより、付勢バネの復元力により固定コアから可動コアを離反させ、可動接点を固定接点から切り離して開路状態を実現することができる。
特開2003−308773号公報
The relay disclosed in Patent Document 1 includes a fixed core and a movable core that are biased in directions away from each other by a biasing spring, a coil that surrounds both cores, and a movement of the movable core, It is an electromagnetic relay provided with the movable contact which contacts / separates with respect to. In this relay, by energizing the coil in a normal state, the movable core is attracted to the fixed core by the magnetic force against the bias of the bias spring, and the movable contact is pressed against the fixed contact to realize a closed state. When an abnormality occurs, the current to the coil is cut off, so that the movable core is separated from the fixed core by the restoring force of the biasing spring, and the open contact state can be realized by separating the movable contact from the fixed contact. .
JP 2003-308773 A

以上の如く電気回路を開閉する電磁継電器においては、開路状態において固定接点及び可動接点間と略同じ隙間が固定コア及び可動コア間に存在しており、閉路状態を実現すべく必要な磁着力を固定コア及び可動コア間に生じさせるために比較的大きな電流をコイルに流すか又はコイルの巻数を大にする必要があり、消費電力が大であると共に継電器が大型化するという問題があった。   As described above, in an electromagnetic relay that opens and closes an electric circuit, in the open circuit state, a gap substantially the same as that between the fixed contact and the movable contact exists between the fixed core and the movable core, and a magnetic adhesion force necessary to realize the closed circuit is obtained. In order to generate between the fixed core and the movable core, it is necessary to pass a relatively large current through the coil or to increase the number of turns of the coil, and there is a problem that the power consumption is large and the relay is enlarged.

本発明は斯かる事情に鑑みてなされたものであり、電気回路に接続された各接点を支持する支持体に夫々設けられた磁性体間に反発力を生じさせ、この反発力を利用することにより、消費電力を低減することができ、小型化することができる継電器を提供することを目的とする。   The present invention has been made in view of such circumstances, and a repulsive force is generated between the magnetic bodies provided on the supports that support the respective contacts connected to the electric circuit, and the repulsive force is used. Accordingly, it is an object to provide a relay that can reduce power consumption and can be reduced in size.

第1発明に係る継電器においては、電気回路を開閉する継電器において、前記電気回路に接続されるべき第1,第2接点と、該第1,第2接点を接離可能に支持する第1,第2支持体と、該第1,第2支持体に夫々設けられ、対向する第1,第2磁性体と、該第1,第2磁性体の対向部に前記第1,第2接点の接離方向と交叉する方向の磁場を印加する磁場印加手段とを備えることを特徴とする。   In the relay according to the first invention, in the relay that opens and closes the electric circuit, the first and second contacts to be connected to the electric circuit, and the first and second contacts that support the first and second contacts in a detachable manner. A second support, a first and a second magnetic body provided on the first and the second support, respectively, and an opposing portion of the first and second magnetic bodies; Magnetic field applying means for applying a magnetic field in a direction crossing the approaching / separating direction.

第2発明に係る継電器においては、第1発明において、前記第1,第2接点は、前記第1,第2支持体の前記第1,第2磁性体の対向部と同じ側に互いに接触可能に夫々設けてあり、前記磁場印加手段により磁場が印加されたときに、離反するように構成してあることを特徴とする。   In the relay according to the second invention, in the first invention, the first and second contacts can contact each other on the same side of the first and second support members as the opposing portions of the first and second magnetic bodies. And is configured to be separated when a magnetic field is applied by the magnetic field applying means.

第3発明に係る継電器においては、第1発明において、前記第1,第2接点は、前記第1,第2支持体の前記第1,第2磁性体の対向部とは逆側に夫々設けてあり、前記磁場印加手段により磁場が印加されたときに、前記第1接点と前記第2接点とを接続する導電体を備えていることを特徴とする。   In a relay according to a third aspect of the present invention, in the first aspect, the first and second contacts are provided on opposite sides of the first and second support members from the opposing portions of the first and second magnetic bodies, respectively. And a conductor for connecting the first contact and the second contact when a magnetic field is applied by the magnetic field applying means.

第4発明に係る継電器においては、第1発明又は第2発明において、前記第1,第2磁性体は、互いに他方に向けて突出し、対向する凸部を夫々備えていることを特徴とする。   The relay according to a fourth aspect of the present invention is characterized in that, in the first aspect or the second aspect, the first and second magnetic bodies are respectively provided with convex portions that protrude toward each other and face each other.

第5発明に係る継電器においては、第1発明乃至第4発明のいずれか一項において、前記磁場印加手段は、電磁石であることを特徴とする。   A relay according to a fifth invention is characterized in that, in any one of the first invention to the fourth invention, the magnetic field applying means is an electromagnet.

第6発明に係る継電器においては、第5発明において、前記電磁石は、断面形状が略U字形であり、前記第1,第2接点の接離方向と略直交する面内にて、前記電磁石の両端部が前記第1,第2磁性体の対向部に夫々対面するように設けてあることを特徴とする。   In a relay according to a sixth aspect of the present invention, in the fifth aspect, the electromagnet has a substantially U-shaped cross-section, and the electromagnet is disposed within a plane substantially perpendicular to the contact / separation direction of the first and second contacts. Both end portions are provided so as to face the opposing portions of the first and second magnetic bodies, respectively.

第1発明によれば、磁場印加手段により第1,第2磁性体の対向部に磁場を印加することにより、第1,第2磁性体の対向部の前記磁場印加手段に面する部分には、該磁場印加手段とは逆の磁極が夫々誘導され、第1,第2磁性体の対向する部分に同磁極が夫々生じて、対向部間に反発力が発生するから、この反発力の作用により第1,第2接点を離反又は接触させることにより電気回路を開又は閉にすることができる。第1,第2磁性体間に作用する反発力を利用しているから、狭いギャップを隔てて第1,第2磁性体が対向するように構成することができ、第1,第2磁性体間に作用する力は距離の二乗に反比例するから、着磁力を利用した従来の継電器と比較して、磁場印加手段に供給される電流を低く抑えることができ、消費電力の低減を図ることができると共に、継電器を小型化することができる。   According to the first invention, by applying a magnetic field to the opposing portions of the first and second magnetic bodies by the magnetic field applying means, the portion facing the magnetic field applying means of the opposing portions of the first and second magnetic bodies The magnetic poles opposite to the magnetic field applying means are respectively induced, and the magnetic poles are generated in the opposing portions of the first and second magnetic bodies, respectively, and a repulsive force is generated between the opposing portions. Thus, the electric circuit can be opened or closed by separating or contacting the first and second contacts. Since the repulsive force acting between the first and second magnetic bodies is utilized, the first and second magnetic bodies can be configured to face each other with a narrow gap therebetween. Since the force acting between them is inversely proportional to the square of the distance, the current supplied to the magnetic field applying means can be kept low compared with the conventional relay using the magnetizing force, and the power consumption can be reduced. In addition, the relay can be miniaturized.

第2発明によれば、磁場印加手段による磁場の印加により第1,第2磁性体に夫々磁極を誘導して、該磁極により生じる反発力により第1,第2磁性体の対向部と同じ側に設けられた第1,第2接点を離反させて、電気回路を開にしている。通常時に、例えば、第1,第2支持体の弾性力によって電気回路を閉にし、異常発生時に電気回路を開にするために用いる場合に適用可能であり、異常発生時のみに磁場印加手段を動作させればよいから、消費電力の更なる低減を図ることができる。   According to the second invention, the magnetic field is applied to the first and second magnetic bodies by application of the magnetic field by the magnetic field applying means, and the repulsive force generated by the magnetic poles causes the same side as the facing portion of the first and second magnetic bodies. The electric circuit is opened by separating the first and second contacts provided on the. It can be applied to a case where the electric circuit is closed by the elastic force of the first and second support bodies and is used to open the electric circuit when an abnormality occurs. Since it only needs to be operated, the power consumption can be further reduced.

第3発明によれば、磁場印加手段による磁場の印加により第1,第2磁性体に夫々磁極を誘導して、該磁極により生じる反発力により第1,第2支持体の対向部と逆側に設けられた第1,第2接点を導電体を介して接続させて、電気回路を閉にしている。通常時に電気回路を閉にし、異常発生時に、例えば、第1,第2支持体の弾性力によって電気回路を開にするために用いる場合に適用可能であり、異常発生時に磁場印加手段をオン動作させることなく、電気回路を遮断することができるから、異常が磁場印加手段への給電回路に生じた場合も対応可能である。   According to the third invention, the magnetic field is applied to the first and second magnetic bodies by applying the magnetic field by the magnetic field applying means, and the repulsive force generated by the magnetic poles causes the opposite side of the opposing portions of the first and second supports. The electrical circuit is closed by connecting the first and second contacts provided in the through a conductor. Applicable when the electric circuit is closed during normal operation and used to open the electric circuit by the elastic force of the first and second supports, for example, when an abnormality occurs. Since the electric circuit can be cut off without causing the failure, it is possible to cope with a case where an abnormality occurs in the power feeding circuit to the magnetic field applying means.

第4発明によれば、第1,第2磁性体は、他方に向けて突出し、対向する凸部を夫々備えており、第1,第2磁性体の対向部分の面積を小さくして、磁束密度を高くすることにより、第1,第2磁性体の対向部間に生じる反発力を大にすることができ、消費電力の更なる低減を図ることができる。   According to the fourth invention, the first and second magnetic bodies protrude toward the other side and are provided with opposing convex portions, respectively, and the areas of the opposing portions of the first and second magnetic bodies are reduced to reduce the magnetic flux. By increasing the density, the repulsive force generated between the opposing portions of the first and second magnetic bodies can be increased, and the power consumption can be further reduced.

第5発明によれば、磁場印加手段として電磁石を用いているから、簡素な構成にて十分な反発力を生じさせることができる。   According to the fifth aspect of the invention, since the electromagnet is used as the magnetic field applying means, a sufficient repulsive force can be generated with a simple configuration.

第6発明によれば、断面形状が略U字形である電磁石の両端部を第1,第2磁性体の対向部に夫々対面させており、電磁石の両端部と磁性体の対向部とのギャップを小さくすることにより、簡素な構成にて十分な反発力を生じさせることができる。   According to the sixth invention, both end portions of the electromagnet having a substantially U-shaped cross section are opposed to the facing portions of the first and second magnetic bodies, respectively, and the gap between the both end portions of the electromagnet and the facing portion of the magnetic body By making small, a sufficient repulsive force can be generated with a simple configuration.

以下、本発明をその実施の形態を示す図面に基づいて詳述する。図1は、本発明に係る継電器の概略構成を示す図であり、図1(a)は平面図を、図1(b)は図1(a)の I−I 線による断面図を夫々示している。   Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof. FIG. 1 is a diagram showing a schematic configuration of a relay according to the present invention. FIG. 1 (a) is a plan view, and FIG. 1 (b) is a cross-sectional view taken along line I-I in FIG. 1 (a). ing.

図中1a,1bは、第1,第2支持体である。これら第1,第2支持体1a,1bは、厚さ方向に撓み変形をする弾性体であり、図に示すように夫々の一端を基部10により支持され、適長を隔てて互いに平行をなして対向するように設けてある。   In the figure, reference numerals 1a and 1b denote first and second supports. These first and second supports 1a and 1b are elastic bodies that bend and deform in the thickness direction. As shown in the figure, one end of each is supported by the base 10 and is parallel to each other with an appropriate length. So as to face each other.

第1,第2支持体1a,1bの他端部には、導電性を有する第1,第2接点2a,2bが夫々設けてある。第1,第2接点2a,2bは、第1,第2支持体1a,1bの弾性により互いに押し付けられて、図1(b)に示すように接触し、第1,第2支持体1a,1bが互いに離反する方向に撓むことにより離反可能になしてある。   Conductive first and second contacts 2a and 2b are provided at the other ends of the first and second supports 1a and 1b, respectively. The first and second contacts 2a and 2b are pressed against each other by the elasticity of the first and second supports 1a and 1b and come into contact with each other as shown in FIG. 1b can be separated by bending in directions away from each other.

また、第1,第2支持体1a,1bの他端には、図に示すように、第1,第2接点2a,2bの接触部を夫々囲繞するように第1,第2磁性体4a,4bが取り付けてあり、第1,第2磁性体4a,4bは、僅かなギャップを隔てて対向している。   As shown in the figure, the first and second magnetic bodies 4a are provided at the other ends of the first and second supports 1a and 1b so as to surround the contact portions of the first and second contacts 2a and 2b, respectively. , 4b are attached, and the first and second magnetic bodies 4a, 4b are opposed to each other with a slight gap.

一方、基部10に固定されている第1,第2支持体1a,1bの一端には、第1,第2接続端子3a,3bが夫々設けてあり、第1,第2接続端子3a,3bは、図示しない電気回路に接続されている。本実施の形態においては、第1,第2支持体1a,1bは導電性を有する銅製であり、第1,第2接点2a,2bは、第1,第2支持体1a,1b及び第1,第2接続端子3a,3bを経て前記電気回路に夫々接続されている。   On the other hand, first and second connection terminals 3a and 3b are respectively provided at one ends of the first and second support bodies 1a and 1b fixed to the base portion 10, and the first and second connection terminals 3a and 3b are provided. Is connected to an electric circuit (not shown). In the present embodiment, the first and second supports 1a and 1b are made of copper having conductivity, and the first and second contacts 2a and 2b are the first and second supports 1a and 1b and the first , And the second connection terminals 3a and 3b, respectively, are connected to the electric circuit.

第1,第2磁性体4a,4bの対向部の近傍には、略U字形の鉄心5が設けてある。鉄心5は、両端部から内向きに延びる延長部が設けてあり、該延長部の端面5a,5aが、基部10と平行をなす第1,第2磁性体4a,4bの2側面に夫々対向するように配してある。   A substantially U-shaped iron core 5 is provided in the vicinity of the opposing portions of the first and second magnetic bodies 4a and 4b. The iron core 5 is provided with extensions extending inward from both ends, and the end surfaces 5a and 5a of the extensions are opposed to the two side surfaces of the first and second magnetic bodies 4a and 4b that are parallel to the base 10, respectively. It is arranged to do.

この鉄心5には、コイル6が巻回されており、このコイル6に通電することにより鉄心5の両端面5a,5aに異なる磁極が生じ、生じた磁極により第1,第2磁性体4a,4bの対向部に磁場が印加される。   A coil 6 is wound around the iron core 5, and when the coil 6 is energized, different magnetic poles are generated on both end faces 5a, 5a of the iron core 5, and the first and second magnetic bodies 4a, 4a, A magnetic field is applied to the opposing part of 4b.

図2は、本発明に係る継電器の動作説明図である。本図はコイル6に通電された状態を示しており、この通電により鉄心5の両端面5a,5aに夫々N極,S極が生じる。この結果、第1,第2磁性体4a,4bの対向部に磁場が印加されるから、第1,第2磁性体4a,4bの鉄心5の両端面5a,5aに面した部分には、該両端面5a,5aに生じた磁極とは異なる磁極が夫々誘導される。即ち、図示するように、第1,第2磁性体4a,4bの基部10に近い側の対向部には、N極が夫々誘導され、第1,第2磁性体4a,4bの基部10に遠い側の対向部には、S極が夫々誘導される。このように第1磁性体4aと第2磁性体4bとの対向する部分に同磁極が夫々生じるから、第1,第2磁性体4a,4b間に反発力が作用し、第1,第2磁性体4a,4bが夫々設けてある第1,第2支持体1a,1bが互いに離反する方向に撓み、第1接点2aと第2接点2bとが切り離されて、第1,第2接続端子3a,3bに接続されている電気回路は開となる。   FIG. 2 is an operation explanatory diagram of the relay according to the present invention. This figure shows a state in which the coil 6 is energized, and this energization generates N and S poles on both end faces 5a and 5a of the iron core 5, respectively. As a result, since the magnetic field is applied to the opposing portions of the first and second magnetic bodies 4a and 4b, the portions facing the both end faces 5a and 5a of the iron core 5 of the first and second magnetic bodies 4a and 4b are Magnetic poles different from the magnetic poles generated on both end faces 5a, 5a are respectively induced. That is, as shown in the drawing, the N poles are respectively guided to the opposing portions of the first and second magnetic bodies 4a and 4b that are close to the base portion 10, and are formed on the base portions 10 of the first and second magnetic bodies 4a and 4b. S poles are respectively guided to the opposing portions on the far side. As described above, since the same magnetic poles are generated at the opposing portions of the first magnetic body 4a and the second magnetic body 4b, a repulsive force acts between the first and second magnetic bodies 4a and 4b, and the first and second magnetic bodies 4a and 4b. The first and second support bodies 1a and 1b provided with the magnetic bodies 4a and 4b bend in a direction away from each other, and the first contact 2a and the second contact 2b are separated, and the first and second connection terminals. The electric circuit connected to 3a and 3b is opened.

一方、コイル6に通電されないときは、鉄心5の両端面5a,5aに磁極が生じず、第1,第2磁性体4a,4bの対向部に磁場が印加されないから、第1,第2磁性体4a,4bにも磁極は生じない。この結果、図1(b)に示すように、第1,第2接点2a,2bは第1,第2支持体1a,1bの弾性復元力によって接触した状態に戻り、第1,第2接続端子3a,3bに接続されている電気回路は閉となる。   On the other hand, when the coil 6 is not energized, no magnetic pole is generated on the both end faces 5a, 5a of the iron core 5, and no magnetic field is applied to the opposing portions of the first and second magnetic bodies 4a, 4b. Magnetic poles are not generated in the bodies 4a and 4b. As a result, as shown in FIG. 1B, the first and second contacts 2a and 2b return to the contacted state by the elastic restoring force of the first and second supports 1a and 1b, and the first and second connections The electric circuit connected to the terminals 3a and 3b is closed.

以上の構成により、本発明に係る継電器は、第1,第2磁性体4a,4bの対向部に第1,第2磁性体4a,4bの接離方向と略直交する方向に磁場を印加して、第1,第2磁性体4a,4bの対向する部分に夫々同じ磁極を誘導して互いに反発する力を発生させており、この反発力の作用により第1,第2支持体1a,1bを撓ませて、第1接点2aと第2接点2bとを切り離して電気回路を開にしている。第1,第2磁性体4a,4b間に作用する反発力を利用しているから、前述したように狭いギャップを隔てて第1,第2磁性体4a,4bを対向させることができ、第1,第2磁性体4a,4b間に作用する力は距離の二乗に反比例するから、着磁力を利用した従来の継電器と比較して、コイル6に供給される電流を低く抑えることができ、消費電力の低減を図ることができると共に、継電器を小型化することができる。なお、鉄心5の端面5a,5aと第1,第2磁性体4a,4bとのギャップ及び第1,第2磁性体4a,4b間のギャップは、反発力を大とすべく可能な限り小さい方が望ましい。   With the above configuration, the relay according to the present invention applies a magnetic field to the facing portion of the first and second magnetic bodies 4a and 4b in a direction substantially perpendicular to the contact and separation direction of the first and second magnetic bodies 4a and 4b. The first and second magnetic bodies 4a and 4b are induced to generate repulsive forces by inducing the same magnetic poles in opposite portions, and the first and second support bodies 1a and 1b are caused by the action of the repulsive forces. And the first contact 2a and the second contact 2b are separated to open the electric circuit. Since the repulsive force acting between the first and second magnetic bodies 4a and 4b is used, the first and second magnetic bodies 4a and 4b can be opposed to each other with a narrow gap as described above. Since the force acting between the first and second magnetic bodies 4a and 4b is inversely proportional to the square of the distance, the current supplied to the coil 6 can be kept low compared to the conventional relay using the magnetizing force, The power consumption can be reduced and the relay can be downsized. The gap between the end surfaces 5a, 5a of the iron core 5 and the first and second magnetic bodies 4a, 4b and the gap between the first and second magnetic bodies 4a, 4b are as small as possible to increase the repulsive force. Is preferable.

ここで、第1,第2支持体1a,1bの軸方向長さを短くすると、第1,第2支持体1a,1bのバネ定数が大きくなり、撓ませるために必要となる力は大きくなるが、第1磁性体4aと第2磁性体4bとを狭いギャップを隔てて対向させているから、比較的弱い磁場により大きな反発力を発生させることができ、第1,第2支持体1a,1bの軸方向長さを短縮して継電器を更に小型化することができる。   Here, if the axial lengths of the first and second support bodies 1a and 1b are shortened, the spring constants of the first and second support bodies 1a and 1b are increased, and the force required for bending is increased. However, since the first magnetic body 4a and the second magnetic body 4b are opposed to each other with a narrow gap, a large repulsive force can be generated by a relatively weak magnetic field, and the first and second support bodies 1a, 1a, The relay can be further miniaturized by reducing the axial length of 1b.

なお、通常時に電気回路を閉にし、異常発生時に電気回路を開にするために用いる場合に適用可能であり、異常発生時のみにコイル6に通電すればよいから、消費電力の更なる低減を図ることができる。   It is applicable to the case where the electric circuit is closed during normal operation and used to open the electric circuit when an abnormality occurs, and the coil 6 may be energized only when an abnormality occurs, thereby further reducing power consumption. Can be planned.

また、鉄心5と、この鉄心5に巻回されたコイル6とを備える電磁石を磁場印加手段として用いているから、簡素な構成にて十分な反発力を第1,第2磁性体4a,4b間に生じさせることができる。   In addition, since an electromagnet including the iron core 5 and the coil 6 wound around the iron core 5 is used as the magnetic field applying means, the first and second magnetic bodies 4a and 4b can have a sufficient repulsive force with a simple configuration. Can occur in between.

更に、第1,第2支持体1a,1bを導電性を有する銅製として、第1,第2支持体1a,1bにより第1,第2接点2a,2bを夫々支持すると共に電気回路に夫々接続するようにしているから、第1,第2接点2a,2bを電気回路に接続する配線を別途設けなくてよい。   Further, the first and second supports 1a and 1b are made of copper having conductivity, and the first and second supports 1a and 1b support the first and second contacts 2a and 2b, respectively, and are connected to the electric circuits, respectively. Therefore, it is not necessary to separately provide wiring for connecting the first and second contacts 2a and 2b to the electric circuit.

図3は、本発明の他の実施の形態に係る継電器の概略構成を示す図であり、図3(a)は平面図を、図3(b)は図3(a)の III−III 線による断面図を夫々示している。この実施の形態においては、第1,第2磁性体14a,14bには、対向面の周縁に凸部24a,24bが夫々形成されるように、対向する側の一側に直方体状の空洞が設けてあり、第1,第2磁性体14a,14bは凸部24a,24bにて僅かなギャップを隔てて対向している。その他の構成は、図1及び図2に示す実施の形態と同様であるため、対応する構成部材に図1と同一の参照符号を付して、その構成及び動作の詳細な説明を省略する。   FIG. 3 is a diagram showing a schematic configuration of a relay according to another embodiment of the present invention, in which FIG. 3 (a) is a plan view and FIG. 3 (b) is a line III-III in FIG. 3 (a). The cross-sectional views by In this embodiment, the first and second magnetic bodies 14a and 14b have rectangular parallelepiped cavities on one side of the opposing sides so that convex portions 24a and 24b are formed on the peripheral edges of the opposing surfaces, respectively. The first and second magnetic bodies 14a and 14b are opposed to each other with a slight gap at the convex portions 24a and 24b. Since other configurations are the same as those of the embodiment shown in FIGS. 1 and 2, the same reference numerals as those in FIG. 1 are attached to corresponding components, and detailed descriptions of the configurations and operations are omitted.

本実施の形態に係る継電器においては、第1,第2磁性体14a,14bの対向面に凸部24a,24bを形成することにより、第1,第2磁性体14a,14bの互いに最も近接する部分の面積を小さくして、凸部24a,24bに磁束を集中させて磁束密度を高めることにより、反発力を大にすることができるから、コイル6に供給する電流を小さく抑えることができ、消費電力の低減を図ることができる。また、図示の如く、第1,第2磁性体14a,14bに空洞を設けているから、第1,第2磁性体14a,14bの重量を軽くすることができ、必要となる反発力が小さくなり、消費電力の更なる低減を図ることができると共に慣性低減により応答性を向上させることができる。   In the relay according to the present embodiment, the first and second magnetic bodies 14a and 14b are closest to each other by forming the convex portions 24a and 24b on the opposing surfaces of the first and second magnetic bodies 14a and 14b. By reducing the area of the portion and concentrating the magnetic flux on the convex portions 24a, 24b to increase the magnetic flux density, the repulsive force can be increased, so that the current supplied to the coil 6 can be kept small, The power consumption can be reduced. Further, as shown in the figure, since the first and second magnetic bodies 14a and 14b are provided with cavities, the weight of the first and second magnetic bodies 14a and 14b can be reduced, and the required repulsive force is small. Thus, the power consumption can be further reduced and the response can be improved by reducing the inertia.

なお、本実施の形態においては、第1,第2磁性体14a,14bの凸部24a,24bは、前述したように一側に空洞を設けて形成してあるが、これに限定されず、第1,第2磁性体が第1,第2接点2a,2bの接離方向に互いに僅かなギャップを隔てて対向し、この対向部が鉄心5の両端面5a,5aに対向可能なように形成してあればよい。   In the present embodiment, the convex portions 24a and 24b of the first and second magnetic bodies 14a and 14b are formed with a cavity on one side as described above, but the invention is not limited to this. The first and second magnetic bodies face each other with a slight gap in the contact / separation direction of the first and second contacts 2a and 2b so that the facing portions can face both end faces 5a and 5a of the iron core 5. It only has to be formed.

図4は、本発明のさらに他の実施の形態に係る継電器の概略構成を示す図であり、図4(a)は平面図を、図4(b)は図4(a)のIV−IV線による断面図を夫々示している。この実施の形態において第1,第2接点22a,22bは、第1,第2支持体1a,1bの他端に第1,第2磁性体4a,4bの対向面とは逆側に夫々設けてある。第1,第2接点22a,22bに、端部が対向するように略U字形の導電体7が設けてあり、導電体7には、第1,第2接点22a,22bに夫々適長を隔てて対面するように第1,第2固定接点8a,8bが設けてある。その他の構成は、図1及び図2に示す実施の形態と同様であるため、対応する構成部材に図1と同一の参照符号を付して、その構成の詳細な説明を省略する。   4A and 4B are diagrams showing a schematic configuration of a relay according to still another embodiment of the present invention. FIG. 4A is a plan view and FIG. 4B is an IV-IV in FIG. Cross-sectional views with lines are shown respectively. In this embodiment, the first and second contacts 22a and 22b are provided at the other ends of the first and second supports 1a and 1b, respectively, on the opposite side of the opposing surfaces of the first and second magnetic bodies 4a and 4b. It is. The first and second contacts 22a and 22b are provided with a substantially U-shaped conductor 7 so that the ends thereof are opposed to each other. The conductor 7 has an appropriate length for the first and second contacts 22a and 22b, respectively. First and second fixed contacts 8a and 8b are provided so as to face each other. Since other configurations are the same as those of the embodiment shown in FIGS. 1 and 2, the corresponding components are denoted by the same reference numerals as those in FIG. 1, and detailed description of the configurations is omitted.

図5は、本発明の図4に示す実施の形態に係る継電器の動作説明図である。本図は、コイル6に通電された状態を示しており、この通電により鉄心5の両端面5a,5aに夫々N極,S極が生じる。この結果、第1,第2磁性体4a,4bの対向部に磁場が印加されるから、第1,第2磁性体4a,4bの鉄心5の両端面5a,5aに面した部分には、該両端面5a,5aに生じた磁極とは異なる磁極が夫々誘導される。図示するように、第1磁性体4aと第2磁性体4bとの対向する部分に同磁極が夫々生じるから、第1,第2磁性体4a,4b間に反発力が作用し、第1,第2磁性体4a,4bが夫々設けてある第1,第2支持体1a,1bが互いに離反する方向に撓み、第1,第2接点22a,22bが第1,第2固定接点8a,8bに夫々押し付けられて、第1,第2接続端子3a,3bに接続されている電気回路は閉となる。   FIG. 5 is an operation explanatory diagram of the relay according to the embodiment shown in FIG. 4 of the present invention. This figure shows a state in which the coil 6 is energized, and this energization generates N and S poles on both end faces 5a and 5a of the iron core 5, respectively. As a result, since the magnetic field is applied to the opposing portions of the first and second magnetic bodies 4a and 4b, the portions facing the both end faces 5a and 5a of the iron core 5 of the first and second magnetic bodies 4a and 4b are Magnetic poles different from the magnetic poles generated on both end faces 5a, 5a are respectively induced. As shown in the figure, since the same magnetic poles are generated in the opposing portions of the first magnetic body 4a and the second magnetic body 4b, a repulsive force acts between the first and second magnetic bodies 4a and 4b, The first and second supports 1a and 1b provided with the second magnetic bodies 4a and 4b are bent in directions away from each other, and the first and second contacts 22a and 22b are first and second fixed contacts 8a and 8b. The electric circuits connected to the first and second connection terminals 3a and 3b are closed.

一方、コイル6に通電されないときは、鉄心5の両端面5a,5aに磁極が生じず、第1,第2磁性体4a,4bの対向部に磁場が印加されないから、第1,第2磁性体4a,4bにも磁極が生じない。この結果、図4(b)に示すように、第1,第2接点22a,22bと第1,第2固定接点8a,8bとは第1,第2支持体1a,1bの弾性復元力によって夫々切り離された状態に戻り、第1,第2接続端子3a,3bに接続されている電気回路は開となる。   On the other hand, when the coil 6 is not energized, no magnetic pole is generated on the both end faces 5a, 5a of the iron core 5, and no magnetic field is applied to the opposing portions of the first and second magnetic bodies 4a, 4b. Magnetic poles are not generated in the bodies 4a and 4b. As a result, as shown in FIG. 4B, the first and second contacts 22a and 22b and the first and second fixed contacts 8a and 8b are caused by the elastic restoring force of the first and second supports 1a and 1b. Returning to the disconnected state, the electric circuits connected to the first and second connection terminals 3a and 3b are opened.

本実施の形態のように構成された継電器においては、異常発生時に電気回路を開にするために用いる場合に適用可能であり、異常発生時にコイル6に通電することなく、電気回路を遮断することができるから、前記異常がコイル6への給電回路に生じた場合も対応可能である。   In the relay configured as in the present embodiment, it can be applied when the electric circuit is opened when an abnormality occurs, and the electric circuit is cut off without energizing the coil 6 when the abnormality occurs. Therefore, the case where the abnormality occurs in the power supply circuit to the coil 6 can be dealt with.

なお、以上の実施の形態においては、第1,第2支持体1a,1bの両方が可撓であるとしているが、どちらか一方のみでもよい。また、以上の実施の形態においては、第1,第2支持体1a,1bを互いに離反する方向に撓めることにより第1,第2接点を離反させるように構成してあるが、第1,第2支持体1a,1bが可撓である必要はなく、第1,第2接点を離反可能な構成であればよい。   In the above embodiment, both the first and second supports 1a and 1b are flexible, but only one of them may be used. In the above embodiment, the first and second contacts 1a and 1b are bent in the directions away from each other, so that the first and second contacts are separated from each other. The second supports 1a and 1b need not be flexible as long as the first and second contacts can be separated from each other.

また、以上の実施の形態においては、基部10と平行をなす第1,第2磁性体の両側面に両端面5a,5aが対向するように鉄心5を配してあるが、これに限定されず、基部10と直角をなす第1,第2磁性体の両側面に鉄心5の両端面5a,5aが対向するように鉄心5を配してもよい。   Further, in the above embodiment, the iron core 5 is disposed so that the both end surfaces 5a and 5a face the both side surfaces of the first and second magnetic bodies parallel to the base portion 10. However, the present invention is not limited to this. Instead, the iron core 5 may be arranged so that both end faces 5a, 5a of the iron core 5 are opposed to both side faces of the first and second magnetic bodies perpendicular to the base portion 10.

更に、以上の実施の形態においては、第1,第2支持体1a,1bの端部に第1,第2接点を設け、該第1,第2接点を囲繞するように第1,第2磁性体を設けているが、これに限定されず、第1,第2接点を第1,第2支持体1a,1bの適宜の軸長方向位置に設けることができるし、第1,第2接点と第1,第2磁性体とを離れた位置に設けてもよい。   Furthermore, in the above embodiment, the first and second contacts are provided at the ends of the first and second supports 1a and 1b, and the first and second contacts are surrounded by the first and second contacts. Although a magnetic body is provided, the present invention is not limited to this, and the first and second contacts can be provided at appropriate positions in the axial length direction of the first and second supports 1a and 1b. You may provide a contact and the 1st, 2nd magnetic body in the position which left | separated.

本発明は、その他、特許請求の範囲に記載した事項の範囲内において種々変更した形態にて実施することが可能である。   In addition, the present invention can be implemented in variously modified forms within the scope of the matters described in the claims.

本発明に係る継電器の概略構成を示す図である。It is a figure which shows schematic structure of the relay based on this invention. 本発明に係る継電器の動作説明図である。It is operation | movement explanatory drawing of the relay which concerns on this invention. 本発明の他の実施の形態に係る継電器の概略構成を示す図である。It is a figure which shows schematic structure of the relay which concerns on other embodiment of this invention. 本発明のさらに他の実施の形態に係る継電器の概略構成を示す図である。It is a figure which shows schematic structure of the relay which concerns on other embodiment of this invention. 本発明の図4に示す実施の形態に係る継電器の動作説明図である。It is operation | movement explanatory drawing of the relay which concerns on embodiment shown in FIG. 4 of this invention.

符号の説明Explanation of symbols

1a 第1支持体、1b 第2支持体、2a,22a 第1接点、2b,22b 第2接点、4a,14a 第1磁性体、4b,14b 第2磁性体、5 鉄心(磁場印加手段,電磁石)、6 コイル(磁場印加手段,電磁石)、7 導電体、10 基部、24a,24b 凸部   DESCRIPTION OF SYMBOLS 1a 1st support body, 1b 2nd support body, 2a, 22a 1st contact, 2b, 22b 2nd contact, 4a, 14a 1st magnetic body, 4b, 14b 2nd magnetic body, 5 iron core (magnetic field application means, electromagnet ), 6 coil (magnetic field applying means, electromagnet), 7 conductor, 10 base, 24a, 24b convex

Claims (6)

電気回路を開閉する継電器において、前記電気回路に接続されるべき第1,第2接点と、該第1,第2接点を接離可能に支持する第1,第2支持体と、該第1,第2支持体に夫々設けられ、対向する第1,第2磁性体と、該第1,第2磁性体の対向部に前記第1,第2接点の接離方向と交叉する方向の磁場を印加する磁場印加手段とを備えることを特徴とする継電器。   In a relay for opening and closing an electric circuit, first and second contacts to be connected to the electric circuit, first and second supports for detachably supporting the first and second contacts, and the first , The first and second magnetic bodies provided on the second support, respectively, and a magnetic field in a direction intersecting with the contact and separation directions of the first and second contacts at the facing portions of the first and second magnetic bodies. And a magnetic field applying means for applying the relay. 前記第1,第2接点は、前記第1,第2支持体の前記第1,第2磁性体の対向部と同じ側に互いに接触可能に夫々設けてあり、前記磁場印加手段により磁場が印加されたときに、離反するように構成してある請求項1記載の継電器。   The first and second contacts are provided on the same side of the first and second support members as the opposing portions of the first and second magnetic bodies so that they can contact each other, and a magnetic field is applied by the magnetic field applying means. The relay according to claim 1, wherein the relay is configured so as to be separated from each other. 前記第1,第2接点は、前記第1,第2支持体の前記第1,第2磁性体の対向部とは逆側に夫々設けてあり、前記磁場印加手段により磁場が印加されたときに、前記第1接点と前記第2接点とを接続する導電体を備えている請求項1記載の継電器。   The first and second contacts are provided on opposite sides of the first and second support members from the opposing portions of the first and second magnetic bodies, respectively, and when a magnetic field is applied by the magnetic field applying means The relay according to claim 1, further comprising a conductor that connects the first contact and the second contact. 前記第1,第2磁性体は、互いに他方に向けて突出し、対向する凸部を夫々備えている請求項1又は請求項2に記載の継電器。   3. The relay according to claim 1, wherein the first and second magnetic bodies are provided with protruding portions that protrude toward each other and face each other. 前記磁場印加手段は、電磁石である請求項1乃至請求項4のいずれか一項に記載の継電器。   The relay according to any one of claims 1 to 4, wherein the magnetic field applying means is an electromagnet. 前記電磁石は、断面形状が略U字形であり、前記第1,第2接点の接離方向と略直交する面内にて、前記電磁石の両端部が前記第1,第2磁性体の対向部に夫々対面するように設けてある請求項5記載の継電器。   The electromagnet has a substantially U-shaped cross section, and both ends of the electromagnet are opposed to the first and second magnetic bodies in a plane substantially perpendicular to the contact and separation direction of the first and second contacts. The relay according to claim 5, which is provided so as to face each other.
JP2007045826A 2007-02-26 2007-02-26 Relay Pending JP2008210641A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007045826A JP2008210641A (en) 2007-02-26 2007-02-26 Relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007045826A JP2008210641A (en) 2007-02-26 2007-02-26 Relay

Publications (1)

Publication Number Publication Date
JP2008210641A true JP2008210641A (en) 2008-09-11

Family

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Family Applications (1)

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JP2007045826A Pending JP2008210641A (en) 2007-02-26 2007-02-26 Relay

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Country Link
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