JP5106299B2

JP5106299B2 - Polarized electromagnetic relay

Info

Publication number: JP5106299B2
Application number: JP2008196886A
Authority: JP
Inventors: 和男窪野
Original assignee: Fujitsu Component Ltd
Current assignee: Fujitsu Component Ltd
Priority date: 2008-07-30
Filing date: 2008-07-30
Publication date: 2012-12-26
Anticipated expiration: 2028-07-30
Also published as: JP2010033965A

Description

本発明は、有極電磁継電器に関する。 The present invention relates to a polarized electromagnetic relay.

有極電磁継電器において、電磁石及び永久磁石を含む電磁石装置と、複数の接点部材を含む接点部とを、互いに絶縁して基部に組み付けるとともに、電磁石装置と接点部との間に、電磁石装置の作用により移動して接点部の接点部材を開閉動作させる力伝達部材を設置したものが知られている。例えば特許文献１は、この種の有極電磁継電器であって、電磁石装置が、一対の鉄板の間に永久磁石を挟持してなる磁性可動体（接極部と称されている）を、電磁石の励磁によりコイルの中心軸線に平行な方向へ直線移動させるように構成される有極電磁継電器を開示する。このような電磁石装置の構成は、永久磁石を含む磁性可動体を電磁石の励磁によりコイル中心軸線に直交する方向へ直線移動させる構成に比べて、一般に、コイル径方向への電磁継電器の外形寸法を効果的に削減できる利点を有する。 In a polarized electromagnetic relay, an electromagnet device including an electromagnet and a permanent magnet and a contact portion including a plurality of contact members are insulated from each other and assembled to the base, and the operation of the electromagnet device is between the electromagnet device and the contact portion. It is known that a force transmission member is installed that moves by moving the contact member to open and close the contact member of the contact portion. For example, Patent Document 1 is a polarized electromagnetic relay of this type, in which an electromagnet device includes a magnetic movable body (referred to as an electrode contact portion) in which a permanent magnet is sandwiched between a pair of iron plates. A polarized electromagnetic relay configured to linearly move in the direction parallel to the central axis of the coil by exciting the coil is disclosed. The configuration of such an electromagnet device generally has an outer dimension of the electromagnetic relay in the coil radial direction as compared to a configuration in which a magnetic movable body including a permanent magnet is linearly moved in a direction perpendicular to the coil center axis by excitation of the electromagnet. It has the advantage that it can be effectively reduced.

特許文献１に開示される有極電磁継電器では、大小２個のコ字形の鉄板が、それらの中央部分の間に磁石をその磁化方向へ挟持して組み合わされ、それにより、磁性可動体の長手方向各端部に、磁石による磁極をそれぞれに形成した両鉄板の端部分が互いに対向して配置される。また、電磁石の鉄心は、同様にコ字形の部材であって、その長手方向両端部分がコイルの径方向外方へ延出して配置される。磁性可動体の長手方向各端部では、互いに異なる磁極を形成した一対の鉄板の端部分の間に、電磁石の鉄心の端部分が挿入される。磁性可動体は、モールド部品である力伝達部材に一体的に組み込まれ、上記相対配置の下で電磁石が作動することにより、力伝達部材が磁性可動体と共に直線移動して、接点部を開閉動作させる。 In the polarized electromagnetic relay disclosed in Patent Document 1, two large and small U-shaped iron plates are combined by sandwiching a magnet in the magnetization direction between the central portions thereof, whereby the length of the magnetic movable body is increased. At each end in the direction, end portions of both iron plates each having a magnetic pole formed by a magnet are arranged opposite to each other. Similarly, the iron core of the electromagnet is a U-shaped member, and both end portions in the longitudinal direction extend outward in the radial direction of the coil. At each end in the longitudinal direction of the magnetic movable body, the end portion of the iron core of the electromagnet is inserted between the end portions of a pair of iron plates on which different magnetic poles are formed. The magnetic movable body is integrated into the force transmission member, which is a molded part, and the electromagnet operates under the above-mentioned relative arrangement, so that the force transmission member moves linearly with the magnetic movable body to open and close the contact portion. Let

また、有極電磁継電器において、電磁石が、コイルを形成する導線を巻き付ける巻枠と、巻枠に固定して支持され、コイルの導線をそれぞれに接続する３個以上のコイル端子とを備えるものが知られている（例えば特許文献２参照）。この種の有極電磁継電器では、コイルに、３個以上のコイル端子のうちいずれか２個のコイル端子からなる端子対をそれぞれに含む２つの励磁回路を構成させることで、動作状態（すなわちメーク接点閉成状態）と復帰状態（すなわちブレーク接点閉成状態）との迅速な切り換えが可能で、しかもいずれの状態においても接点部を安定して接点閉成状態に保持できる利点が得られる。 In the polarized electromagnetic relay, the electromagnet includes a winding frame around which a conducting wire forming a coil is wound, and three or more coil terminals that are fixedly supported on the winding frame and connect the coil conducting wire to each other. It is known (see, for example, Patent Document 2). In this type of polarized electromagnetic relay, the coil is configured with two excitation circuits each including a terminal pair consisting of any two of the three or more coil terminals, so that the operating state (that is, the make-up) It is possible to quickly switch between the contact closed state) and the return state (that is, the break contact closed state), and it is possible to obtain an advantage that the contact portion can be stably maintained in the contact closed state in any state.

なお、本願の出願人は、永久磁石を含む磁性可動体を電磁石の励磁によりコイルの中心軸線に平行な方向へ直線移動させる電磁石装置を備えた有極電磁継電器において、磁性可動体の構造及びその駆動構成を単純化した発明を開示する先行出願（特願２００７−２５５３７７）を、本願に先立って出願している。 Note that the applicant of the present application describes the structure of the magnetic movable body and the structure of the magnetic movable body in the polarized electromagnetic relay including the electromagnet device that linearly moves the magnetic movable body including the permanent magnet in a direction parallel to the central axis of the coil by exciting the electromagnet. A prior application (Japanese Patent Application No. 2007-255377) disclosing an invention with a simplified drive configuration has been filed prior to this application.

特開昭５８−１８１２２７号公報JP 58-181227 A 特開２００５−２４３３６７号公報JP 2005-243367 A

上記した特許文献１に開示される有極電磁継電器では、磁性可動体を構成する一対のコ字形鉄板が、電磁石のコ字形鉄心の全長に相当する長さを有するので、力伝達部材を含む可動部の寸法及び重量が比較的大きくなり、結果として継電器の応答性（すなわち動作時間）及び外形寸法に影響が及ぼされる危惧がある。また、電磁石のコ字形鉄心と磁性可動体の両コ字形鉄板とが、それぞれの長手方向両端で同時に磁気作用を及ぼし合う構成であるから、動作性能のばらつきを低減するためには、各構成部品の寸法精度を向上させる必要があり、結果として製造コストが上昇することが懸念される。 In the polarized electromagnetic relay disclosed in Patent Document 1 described above, the pair of U-shaped iron plates constituting the magnetic movable body has a length corresponding to the entire length of the U-shaped iron core of the electromagnet, so that the movable including the force transmission member is included. There is a risk that the size and weight of the part become relatively large, and as a result, the response (that is, the operation time) and the external dimensions of the relay are affected. In addition, since the U-shaped iron core of the electromagnet and the both U-shaped iron plates of the magnetic movable body simultaneously exert magnetic action at both longitudinal ends, each component can be reduced in order to reduce variation in operating performance. It is necessary to improve the dimensional accuracy, and as a result, there is a concern that the manufacturing cost increases.

また、上記した特許文献２に記載されるように、電磁石が３個以上のコイル端子を備える有極電磁継電器においては、それらコイル端子のそれぞれに導線を結線して巻枠上にコイルを形成する自動巻線作業を、安全かつ正確に実施することが課題となっている。 Further, as described in Patent Document 2 described above, in a polarized electromagnetic relay having an electromagnet having three or more coil terminals, a conductive wire is connected to each of the coil terminals to form a coil on the winding frame. The issue is to implement automatic winding work safely and accurately.

上記した先行出願は、これらの課題を解決する発明の幾つかの実施形態を開示している。 The above-mentioned prior application discloses several embodiments of the invention that solve these problems.

本発明の目的は、永久磁石を含む磁性可動体を電磁石の励磁によりコイルの中心軸線に平行な方向へ直線移動させる電磁石装置を備えた有極電磁継電器において、磁性可動体の構造及びその駆動構成を単純化することで、応答性（動作時間）を改善でき、しかも外形寸法及び製造コストを効果的に削減できる有極電磁継電器を、先行出願に開示した実施形態とは異なる形態で提供することにある。 An object of the present invention is to provide a structure of a magnetic movable body and a driving configuration thereof in a polarized electromagnetic relay having an electromagnet device that linearly moves a magnetic movable body including a permanent magnet in a direction parallel to a central axis of a coil by excitation of the electromagnet. By providing a polarized electromagnetic relay that can improve responsiveness (operation time) and can effectively reduce the external dimensions and manufacturing cost in a form different from the embodiment disclosed in the prior application. It is in.

上記目的を達成するために、請求項１に記載の発明は、基部と、基部に組み付けられる電磁石装置と、電磁石装置から絶縁されて基部に組み付けられる接点部と、電磁石装置と接点部との間に配置され、電磁石装置の作用により移動して接点部を開閉動作させる力伝達部材とを具備し、電磁石装置が、電磁石と、電磁石によって駆動される接極子と、接極子に担持される永久磁石とを備えて構成される、有極電磁継電器において、電磁石は、中心軸線を有するコイルと、コイルの中心軸線に沿って配置される軸部及び軸部の軸線方向一端からコイルの径方向外方へ延長される頭部を有する鉄心と、鉄心の軸部の軸線方向他端に連結されてコイルの外側に延設され、中心軸線に略平行に延びる主部分を含む継鉄とを備え、鉄心の頭部の外縁領域と継鉄の主部分の末端領域とが互いに対向かつ離間して配置され、接極子は、永久磁石をその磁化方向に挟持するとともに磁化方向をコイルの中心軸線に平行に方向付けて配置される第１及び第２の導電板要素を有し、第１の導電板要素の一部分を、鉄心の頭部の外縁領域と継鉄の主部分の末端領域との間に挿入した状態で、中心軸線に平行な方向へ直線移動可能に設置され、力伝達部材は、電磁石の駆動による中心軸線に平行な方向への接極子の直線移動に伴い、中心軸線に平行な方向へ直線移動して、接点部を開閉動作させるように構成され、電磁石は、コイルが巻き付けられる巻枠と、コイルの中心軸線に直交する方向へ整列して巻枠に支持され、コイルを形成する導線がそれぞれに接続される４個のコイル端子とを備えること、を特徴とする有極電磁継電器を提供する。 In order to achieve the above-described object, the invention according to claim 1 includes a base, an electromagnet device assembled to the base, a contact portion insulated from the electromagnet device and assembled to the base, and between the electromagnet device and the contact portion. And a force transmission member that moves by the action of the electromagnet device to open and close the contact portion. The electromagnet device includes an electromagnet, an armature driven by the electromagnet, and a permanent magnet carried by the armature. In the polarized electromagnetic relay, the electromagnet includes a coil having a central axis, a shaft portion arranged along the central axis of the coil, and a radially outer side of the coil from one axial end of the shaft portion. An iron core having a head portion extending to the core, and a yoke including a main portion connected to the other axial end of the shaft portion of the iron core and extending outside the coil and extending substantially parallel to the central axis. The outer edge area of the head The terminal area of the main part of the yoke is arranged opposite to and spaced from each other, and the armature is arranged so as to sandwich the permanent magnet in the magnetization direction and to direct the magnetization direction parallel to the central axis of the coil. 1 and second conductive plate elements, with a portion of the first conductive plate element being inserted between the outer edge region of the iron core head portion and the end region of the main portion of the yoke in the central axis. The force transmission member is installed so as to be linearly movable in a parallel direction, and the force transmission member linearly moves in a direction parallel to the central axis along with the linear movement of the armature in a direction parallel to the central axis by driving of the electromagnet. The electromagnet is supported by the winding frame aligned in a direction orthogonal to the central axis of the coil, and a conductive wire forming the coil is connected to each of the winding frame around which the coil is wound 4. A plurality of coil terminals. To provide a polarized electromagnetic relay to.

請求項２に記載の発明は、請求項１に記載の有極電磁継電器において、４個のコイル端子は、それらの整列方向に見て両端に位置する第１及び第２のコイル端子と、第１及び第２のコイル端子の間で第１のコイル端子に近い側に位置する第３のコイル端子と、第１及び第２のコイル端子の間で第２のコイル端子に近い側に位置する第４のコイル端子とを含み、コイルは、第１及び第３のコイル端子に接続される導線により１つの励磁回路を構成するとともに、第２及び第４のコイル端子に接続される導線により他の１つの励磁回路を構成する、有極電磁継電器を提供する。 According to a second aspect of the present invention, in the polarized electromagnetic relay according to the first aspect, the four coil terminals include first and second coil terminals located at both ends when viewed in the alignment direction thereof, and Between the first and second coil terminals, the third coil terminal located on the side closer to the first coil terminal, and between the first and second coil terminals located on the side closer to the second coil terminal A coil including a fourth coil terminal, wherein the coil forms one excitation circuit with the conductive wires connected to the first and third coil terminals and the other with the conductive wires connected to the second and fourth coil terminals. A polarized electromagnetic relay constituting one excitation circuit is provided.

請求項３に記載の発明は、請求項２に記載の有極電磁継電器において、コイルが２本の導線を有し、１本の導線の両線端部が第１及び第３のコイル端子に接続されるとともに、他の１本の導線の両線端部が第２及び第４のコイル端子に接続されて、互いに電気的に絶縁された２つの励磁回路が構成される、有極電磁継電器を提供する。 According to a third aspect of the present invention, in the polarized electromagnetic relay according to the second aspect, the coil has two conductive wires, and both wire ends of the single conductive wire are the first and third coil terminals. A polarized electromagnetic relay comprising two excitation circuits which are connected and both ends of one other conductive wire are connected to the second and fourth coil terminals to be electrically insulated from each other I will provide a.

請求項４に記載の発明は、請求項１〜３のいずれか１項に記載の有極電磁継電器において、基部は、電磁石を部分的に収容して、電磁石と接点部との間に介在する筒状壁を有し、筒状壁の外面に、コイルの中心軸線に平行な方向へ延びる溝が形成され、力伝達部材は、溝に摺動式に係合する突起を有する、有極電磁継電器を提供する。 According to a fourth aspect of the present invention, in the polarized electromagnetic relay according to any one of the first to third aspects, the base portion partially accommodates the electromagnet and is interposed between the electromagnet and the contact portion. A polarized electromagnetic wave having a cylindrical wall, a groove extending in a direction parallel to the central axis of the coil is formed on the outer surface of the cylindrical wall, and the force transmission member has a protrusion slidably engaged with the groove. Provide a relay.

請求項５に記載の発明は、請求項１〜４のいずれか１項に記載の有極電磁継電器において、接極子の第１の導電板要素は、鉄心の頭部の外縁領域と継鉄の主部分の末端領域との間に挿入される一部分の、コイルに対向する外縁に、コイルの外周形状に対応する湾曲形状の凹所を有する、有極電磁継電器を提供する。 According to a fifth aspect of the present invention, in the polarized electromagnetic relay according to any one of the first to fourth aspects, the first conductive plate element of the armature includes an outer edge region of the head of the iron core and the yoke. Provided is a polarized electromagnetic relay having a curved recess corresponding to the outer peripheral shape of a coil at an outer edge facing the coil, which is a part inserted between the terminal region of the main part.

請求項６に記載の発明は、請求項１〜５のいずれか１項に記載の有極電磁継電器において、接極子の第１及び第２の導電板要素は、導電板素材から打抜き成形した結果のダレを縁に有する表面と、表面の反対側の裏面とを各々に備えて、裏面を互いに対向させた配置で力伝達部材に固定され、第１及び第２の導電板要素の各々に、力伝達部材に対する表面及び裏面の向きを明示する印が設けられる、有極電磁継電器を提供する。 The invention according to claim 6 is the result of punching and forming the first and second conductive plate elements of the armature from the conductive plate material in the polarized electromagnetic relay according to any one of claims 1 to 5. Each of the first and second conductive plate elements is fixed to the force transmission member in an arrangement in which the back surface is opposite to the front surface, and the back surfaces are opposed to each other. Provided is a polarized electromagnetic relay provided with marks that clearly indicate the orientation of the front and back surfaces with respect to a force transmission member.

請求項７に記載の発明は、請求項１〜６のいずれか１項に記載の有極電磁継電器において、接極子の第１及び第２の導電板要素の少なくとも一方は、表面及び裏面の少なくとも一方に埋め込まれた非磁性金属層を一体的に備える、有極電磁継電器を提供する。 According to a seventh aspect of the present invention, in the polarized electromagnetic relay according to any one of the first to sixth aspects, at least one of the first and second conductive plate elements of the armature includes at least a front surface and a back surface. Provided is a polarized electromagnetic relay integrally including a nonmagnetic metal layer embedded in one side.

本発明によれば、接極子と永久磁石とを含む磁性可動体の移動方向、永久磁石の磁化方向、及び力伝達部材の移動方向を、いずれもコイル中心軸線に平行な方向としたことにより、磁性可動体の構造及びその駆動構成が単純化される。その結果、有極電磁継電器の応答性（動作時間）が改善されるとともに、外形寸法及び製造コストが効果的に削減される。また、電磁石の４個のコイル端子が、コイル中心軸線に直交する方向へ整列して巻枠に支持されているから、個々のコイル端子に導線を結線して巻枠上にコイルを形成する自動巻線作業を、断線等の欠陥を生じることなく安全かつ正確に実施することができる。 According to the present invention, the moving direction of the magnetic movable body including the armature and the permanent magnet, the magnetization direction of the permanent magnet, and the moving direction of the force transmission member are all parallel to the coil center axis. The structure of the magnetic movable body and its driving configuration are simplified. As a result, the responsiveness (operation time) of the polarized electromagnetic relay is improved, and the external dimensions and manufacturing cost are effectively reduced. In addition, since the four coil terminals of the electromagnet are aligned in the direction orthogonal to the coil center axis and supported by the winding frame, an automatic wire is formed on the winding frame by connecting a conductive wire to each coil terminal. The winding work can be performed safely and accurately without causing defects such as disconnection.

また、４個のコイル端子を用いて、コイルが２つの励磁回路を構成するようにすれば、動作状態（すなわちメーク接点閉成状態）と復帰状態（すなわちブレーク接点閉成状態）との迅速な切り換えが可能で、しかもいずれの状態においても接点部を安定して接点閉成状態に保持できるものとなる。 Further, if the coil constitutes two excitation circuits using four coil terminals, the operation state (that is, the make contact closed state) and the return state (that is, the break contact closed state) can be quickly performed. Switching is possible, and in any state, the contact portion can be stably maintained in the contact closed state.

このとき、２つの励磁回路を互いに電気的に絶縁することで、それら励磁回路用の２つのコイル部分を巻枠に径方向へ重ねて巻き付ける場合に、それらコイル部分を互いに線径の異なる導線で形成することにより、両コイル部分の巻線効率を均等化することができる。 At this time, by electrically insulating the two exciting circuits from each other, when the two coil portions for the exciting circuits are wound around the winding frame in the radial direction, the coil portions are connected with the conductors having different wire diameters. By forming, the winding efficiency of both coil parts can be equalized.

基部の筒状壁に溝を設けるとともに、溝に係合する突起を力伝達部材に設けた場合には、溝と突起とが互いに協働して、電磁石装置の作動時に、力伝達部材をコイル中心軸線に平行な方向へ案内する。 When a groove is provided on the cylindrical wall of the base and a protrusion that engages with the groove is provided on the force transmission member, the groove and the protrusion cooperate with each other, and the force transmission member is coiled when the electromagnet device operates. Guide in a direction parallel to the central axis.

接極子の第１の導電板要素に凹所を形成すれば、鉄心頭部及び継鉄主部分に交互に吸着される第１の導電板要素の寸法を、所要の吸着力及び剛性を確保できる範囲に維持しつつ、接極子をコイルに可及的に接近させて配置することができる。その結果、遊休空間が排除され、有極電磁継電器の小形化（特に低背化）が促進される。 By forming a recess in the first conductive plate element of the armature, it is possible to secure the required suction force and rigidity for the dimensions of the first conductive plate element that are alternately attracted to the iron core head and the main yoke portion. The armature can be placed as close to the coil as possible while maintaining the range. As a result, idle space is eliminated, and miniaturization (especially low profile) of the polarized electromagnetic relay is promoted.

第１及び第２の導電板要素の各々に、力伝達部材に対する表面及び裏面の向きを明示する印を設ければ、作業者は、印を目視確認することで、各導電板要素の表裏を正確に方向付けて力伝達部材に固定することができる。 If the first and second conductive plate elements are each provided with a mark that clearly indicates the orientation of the front and back surfaces with respect to the force transmission member, the operator visually confirms the mark so that the front and back of each conductive plate element can be seen. It can be accurately oriented and secured to the force transmission member.

第１及び第２の導電板要素の少なくとも一方が、表面及び裏面の少なくとも一方に埋め込まれた非磁性金属層を一体的に備える構成とすれば、接極子が鉄心頭部と継鉄主部分との間で受ける磁気吸引力を適宜に調整でき、しかも、導電板要素が鉄心頭部及び継鉄主部分に対し衝突を繰返した場合にも、めっきに比べて剥離等の構造的欠陥を生じ難いから、長期に渡り、接極子が受ける磁気吸引力を適正に調整した状態を維持することができる。 If at least one of the first and second conductive plate elements is configured to integrally include a nonmagnetic metal layer embedded in at least one of the front surface and the back surface, the armature includes an iron core head and a yoke main portion. The magnetic attraction force received between the two can be adjusted appropriately, and structural defects such as delamination are less likely to occur when the conductive plate element repeatedly collides against the iron core head and the main yoke portion compared to plating. Therefore, it is possible to maintain a state in which the magnetic attractive force received by the armature is appropriately adjusted over a long period of time.

以下、添付図面を参照して、本発明の実施の形態を詳細に説明する。全図面に渡り、対応する構成要素には共通の参照符号を付す。
まず、図１及び図２を参照して、先行出願（特願２００７−２５５３７７）に本発明の関連技術として記載した有極電磁継電器１０の構成を説明する。 Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Corresponding components are denoted by common reference symbols throughout the drawings.
First, with reference to FIG.1 and FIG.2, the structure of the polarized electromagnetic relay 10 described in the prior application (Japanese Patent Application No. 2007-255377) as a related technique of this invention is demonstrated.

有極電磁継電器１０は、基部１２と、基部１２に組み付けられる電磁石装置１４と、電磁石装置１４から絶縁されて基部１２に組み付けられる接点部１６と、電磁石装置１４と接点部１６との間に配置され、電磁石装置１４の作用により移動して接点部１６を開閉動作させる力伝達部材１８とを備える。 The polarized electromagnetic relay 10 is disposed between the base 12, the electromagnet device 14 assembled to the base 12, the contact portion 16 insulated from the electromagnet device 14 and assembled to the base 12, and the electromagnet device 14 and the contact portion 16. And a force transmission member 18 that moves by the action of the electromagnet device 14 to open and close the contact portion 16.

基部１２は、電気絶縁性の樹脂成形品からなり、電磁石装置１４を設置する第１部分２０と、接点部１６を設置する第２部分２２とを一体に備える（図１）。第１部分２０は、電磁石装置１４の一部を包囲する筒状壁２４を有する。また第２部分２２は、接点部１６の後述する複数の接点部材を個別に取り付ける複数の取付孔（図示せず）を有する。第１部分２０の筒状壁２４は、電磁石装置１４と接点部１６との間に介在して両者間の電気的絶縁を確保する。 The base 12 is made of an electrically insulating resin molded product, and integrally includes a first portion 20 where the electromagnet device 14 is installed and a second portion 22 where the contact portion 16 is installed (FIG. 1). The first portion 20 has a cylindrical wall 24 that surrounds a part of the electromagnet device 14. The second portion 22 has a plurality of attachment holes (not shown) for individually attaching a plurality of contact members described later of the contact portion 16. The cylindrical wall 24 of the first portion 20 is interposed between the electromagnet device 14 and the contact portion 16 to ensure electrical insulation therebetween.

電磁石装置１４は、電磁石２６と、電磁石２６によって駆動される接極子２８と、接極子２８に担持される永久磁石３０とを備える。図２に示すように、電磁石２６は、巻枠３２と、巻枠３２に巻き付けて支持され、中心軸線３４ａを有するコイル３４と、巻枠３２に受容される鉄心３６と、鉄心３６に連結されてコイル３４の外側に延設される継鉄３８とを備える。巻枠３２は、電気絶縁性の樹脂成形品であり、所定長さを有する中空円筒状の胴部４０と、胴部４０の長手方向両端に設けられる環状平板状の第１及び第２鍔部４２、４４とを有する。コイル３４は、巻枠３２の胴部４０に導線の所要長さ部分を密に巻着して形成され、巻枠３２の両鍔部４２、４４の間に固定的に保持される。 The electromagnet device 14 includes an electromagnet 26, an armature 28 driven by the electromagnet 26, and a permanent magnet 30 carried on the armature 28. As shown in FIG. 2, the electromagnet 26 is connected to the winding frame 32, a coil 34 supported around the winding frame 32 and having a central axis 34 a, an iron core 36 received in the winding frame 32, and the iron core 36. And a yoke 38 extending outside the coil 34. The winding frame 32 is an electrically insulating resin molded product, and has a hollow cylindrical body 40 having a predetermined length, and annular flat plate-like first and second flanges provided at both longitudinal ends of the body 40. 42, 44. The coil 34 is formed by tightly winding a required length portion of a conducting wire around the body portion 40 of the winding frame 32, and is fixedly held between both flange portions 42 and 44 of the winding frame 32.

鉄心３６は、例えば磁性鋼から形成される柱状部材であり、コイル３４の中心軸線３４ａに沿って配置されて巻枠３２の胴部４０に収容される円柱状の軸部４６と、軸部４６の軸線方向一端からコイル３４の径方向外方へ延長される平板状の頭部４８とを一体に備える（図２）。鉄心３６の頭部４８は、巻枠３２の第１鍔部４２の外面上に露出して配置され、その外縁領域４８ａが、第１鍔部４２からコイル径方向外方へ僅かに突出する。 The iron core 36 is a columnar member made of, for example, magnetic steel, and is arranged along the central axis 34 a of the coil 34 and is accommodated in the body portion 40 of the winding frame 32, and the shaft portion 46. And a flat plate-like head portion 48 that extends outward in the radial direction of the coil 34 from one end in the axial direction (FIG. 2). The head portion 48 of the iron core 36 is disposed so as to be exposed on the outer surface of the first flange portion 42 of the winding frame 32, and the outer edge region 48 a slightly protrudes outward in the coil radial direction from the first flange portion 42.

継鉄３８は、例えば磁性鋼から形成されるＬ字板状部材であり、鉄心３６の軸部４６の、頭部４８とは反対側の軸線方向他端４６ａに、例えばかしめにより固定的に連結されて、コイル３４の周辺に磁路を形成する（図２）。継鉄３８は、鉄心３６の軸部４６に連結されて巻枠３２の第２鍔部４４に沿って配置される短尺の連結部分５０と、連結部分５０に略直交して配置され、コイル３４の一側方に離間してコイル中心軸線３４ａに略平行に延びる長尺の主部分５２とを一体に備える。継鉄３８の主部分５２の末端領域５２ａは、巻枠３２の第１鍔部４２の側方近傍で、鉄心３６の頭部４８の外縁領域４８ａに対し、所定間隔を空けて対向配置される。 The yoke 38 is an L-shaped plate member made of, for example, magnetic steel, and is fixedly connected to the other axial end 46a of the shaft portion 46 of the iron core 36 opposite to the head portion 48 by, for example, caulking. Thus, a magnetic path is formed around the coil 34 (FIG. 2). The yoke 38 is connected to the shaft portion 46 of the iron core 36 and is arranged along the second flange portion 44 of the winding frame 32, the short connecting portion 50 and the connecting portion 50. And a long main portion 52 that is spaced apart from one side and extends substantially parallel to the coil center axis 34a. The end region 52a of the main portion 52 of the yoke 38 is disposed in the vicinity of the side of the first flange 42 of the winding frame 32 so as to face the outer edge region 48a of the head 48 of the iron core 36 with a predetermined interval. .

接極子２８は、互いに同一形状でそれぞれが例えば磁性鋼から形成される平板状の第１及び第２の導電板要素５４、５６を有する。また、永久磁石３０は、直方体形状を有し、最長縁を含む一対の側面に、それぞれＮ極及びＳ極が形成される。第１及び第２の導電板要素５４、５６は、互いに間隔を空けて対面配置され、両者間に永久磁石３０をその磁化方向（図示のＮＳ極間の磁界の方向）に固定的に挟持するとともに、この磁化方向をコイル３４の中心軸線３４ａに平行に方向付けて、巻枠３２の第１鍔部４２の側方近傍に配置される（図２）。 The armature 28 includes first and second conductive plate elements 54 and 56 each having the same shape and each formed of, for example, magnetic steel. The permanent magnet 30 has a rectangular parallelepiped shape, and an N pole and an S pole are formed on a pair of side surfaces including the longest edge, respectively. The first and second conductive plate elements 54 and 56 are arranged to face each other with a space therebetween, and the permanent magnet 30 is fixedly sandwiched between them in the magnetization direction (the direction of the magnetic field between the NS poles shown). At the same time, this magnetization direction is oriented parallel to the central axis 34a of the coil 34, and is disposed in the vicinity of the side of the first flange portion 42 of the winding frame 32 (FIG. 2).

接極子２８（第１及び第２の導電板要素５４、５６）は、永久磁石３０と協働して、電磁石２６の励磁により移動する磁性可動体を構成する。この磁性可動体は、第１の導電板要素５４の一部分（図で下半部分）５４ａを、鉄心３６の頭部４８の外縁領域４８ａと継鉄３８の主部分５２の末端領域５２ａとの間に挿入した状態で、コイル中心軸線３４ａに平行な方向（図２の矢印α方向）へ直線往復移動可能に設置される。したがって、接極子２８の往復移動範囲は、第１の導電板要素５４の下半部分５４ａが、鉄心３６の頭部４８の外縁領域４８ａと継鉄３８の主部分５２の末端領域５２ａとのそれぞれに当接される位置を、前後両端の移動限界点として規定される。 The armature 28 (first and second conductive plate elements 54, 56) constitutes a magnetic movable body that moves by excitation of the electromagnet 26 in cooperation with the permanent magnet 30. This magnetic movable body has a portion (lower half portion in the figure) 54a of the first conductive plate element 54 between the outer edge region 48a of the head portion 48 of the iron core 36 and the end region 52a of the main portion 52 of the yoke 38. In the state of being inserted into the coil, it is installed so as to be capable of linear reciprocation in a direction parallel to the coil center axis 34a (the direction of arrow α in FIG. 2). Therefore, the range of reciprocation of the armature 28 is such that the lower half portion 54a of the first conductive plate element 54 has an outer edge region 48a of the head portion 48 of the iron core 36 and an end region 52a of the main portion 52 of the yoke 38, respectively. Is defined as a movement limit point at both front and rear ends.

図２に示すように、接点部１６は、力伝達部材１８に連動する可動接点５８を担持する可動接点ばね部材６０と、可動接点ばね部材６０の一方の面に離間かつ対向して配置され、可動接点５８に接触可能に対向するメーク固定接点６２を担持する第１の固定接点部材６４と、第１の固定接点部材６４とは反対側で可動接点ばね部材６０の他方の面に離間かつ対向して配置され、可動接点５８に接触可能に対向するブレーク固定接点６６を担持する第２の固定接点部材６８とを備えて構成される。可動接点ばね部材６０は、例えばばね用燐青銅の薄板から打ち抜いて形成され、力伝達部材１８から受ける力に応じて、所要のばね付勢力を発揮する。これら３個の接点部材６０、６４、６８を含む接点部１６は、第２の固定接点部材６８が基部１２の筒状壁２４（図１）を介して電磁石２６に近い側に配置されるとともに、それぞれの接点５８、６２、６６が電磁石２６のコイル３４の中心軸線３４ａに平行な方向へ整列するように配置される。 As shown in FIG. 2, the contact portion 16 is disposed so as to be separated from and opposed to a movable contact spring member 60 that carries a movable contact 58 that interlocks with the force transmission member 18, and one surface of the movable contact spring member 60. A first fixed contact member 64 carrying a make fixed contact 62 that is opposed to the movable contact 58 so as to be able to come into contact with the other surface of the movable contact spring member 60 on the opposite side of the first fixed contact member 64 and spaced apart from the other surface. And a second fixed contact member 68 that carries a break fixed contact 66 that faces the movable contact 58 so as to come into contact therewith. The movable contact spring member 60 is formed, for example, by punching from a thin plate of phosphor bronze for spring, and exhibits a required spring biasing force according to the force received from the force transmission member 18. The contact portion 16 including these three contact members 60, 64, and 68 has a second fixed contact member 68 disposed on the side close to the electromagnet 26 via the cylindrical wall 24 (FIG. 1) of the base portion 12. The contacts 58, 62, 66 are arranged so as to be aligned in a direction parallel to the central axis 34 a of the coil 34 of the electromagnet 26.

可動接点ばね部材６０が担持する可動接点５８は、基部１２の第２部分２２（図１）の上方で、前述した磁性可動体（接極子２８及び永久磁石３０）の直線移動動作に対応して揺動的に変位して、その揺動方向に対向するメーク固定接点６２及びブレーク固定接点６６に対し、交互的に接点開閉動作できるようになっている。なお、可動接点５８は、メーク固定接点６２に接触するメーク可動接点要素５８ａと、ブレーク固定接点６６に接触するブレーク可動接点要素５８ｂとを含む（図２）。 The movable contact 58 carried by the movable contact spring member 60 corresponds to the above-described linear movement operation of the magnetic movable body (the armature 28 and the permanent magnet 30) above the second portion 22 (FIG. 1) of the base 12. The contacts can be opened and closed alternately with respect to the make fixed contact 62 and the break fixed contact 66 which are displaced in a swinging manner and face each other in the swinging direction. The movable contact 58 includes a make movable contact element 58a that contacts the make fixed contact 62 and a break movable contact element 58b that contacts the break fixed contact 66 (FIG. 2).

力伝達部材１８は、平面視で略矩形の枠状部材であり、例えば樹脂材料から一体成形される。力伝達部材１８は、その矩形輪郭の長軸を、電磁石２６のコイル３４の中心軸線３４ａに平行な方向へ配置して、基部１２の筒状壁２４の上端部分７０（図１）に、長手方向摺動可能に支持される。力伝達部材１８の長手方向一端には、接点部１６の可動接点ばね部材６０に係合する一対の着力点７２が設けられる。また、力伝達部材１８の長手方向他端領域には、接極子２８が、第１及び第２の導電板要素５４、５６の間に永久磁石３０を挟持した状態で、固定して連結される。図示実施形態では、力伝達部材１８の長手方向他端領域に、接極子２８及び永久磁石３０を固定的に受容する空所７４（図１）が形成され、この空所７４に接極子２８及び永久磁石３０が、例えば圧入や接着剤使用により固定される。接極子２８及び永久磁石３０を適正に固定した力伝達部材１８を、基部１２の筒状壁２４及び接点部１６の可動接点ばね部材６０に適正に取り付けると、接極子２８及び永久磁石３０と電磁石２６とが、前述した相対配置に位置決めされる。 The force transmission member 18 is a substantially rectangular frame-like member in plan view, and is integrally formed from, for example, a resin material. The force transmission member 18 is arranged with the long axis of the rectangular outline in a direction parallel to the central axis 34a of the coil 34 of the electromagnet 26, and the upper end portion 70 (FIG. 1) of the cylindrical wall 24 of the base portion 12 is elongated. Supported to be slidable in the direction. One end of the force transmission member 18 in the longitudinal direction is provided with a pair of applied points 72 that engage with the movable contact spring member 60 of the contact portion 16. Further, the armature 28 is fixedly connected to the other end region in the longitudinal direction of the force transmission member 18 with the permanent magnet 30 sandwiched between the first and second conductive plate elements 54 and 56. . In the illustrated embodiment, a cavity 74 (FIG. 1) that receives the armature 28 and the permanent magnet 30 in a fixed manner is formed in the other longitudinal end region of the force transmission member 18. The permanent magnet 30 is fixed by press-fitting or using an adhesive, for example. When the force transmission member 18 in which the armature 28 and the permanent magnet 30 are properly fixed is properly attached to the cylindrical wall 24 of the base portion 12 and the movable contact spring member 60 of the contact portion 16, the armature 28, the permanent magnet 30 and the electromagnet. 26 are positioned in the above-described relative arrangement.

有極電磁継電器１０は、電磁石装置１４、接点部１６及び力伝達部材１８を収容して基部１２に固定されるケース７６をさらに備える（図１）。ケース７６は、直方体輪郭を有する電気絶縁性の樹脂成形品からなり、直方体輪郭の一面に相当する部分に、電磁石装置１４、接点部１６及び力伝達部材１８を内部に挿入するための開口７８が画定される。他方、基部１２は、ケース７６に固定されたときにケース７６から露出して外方へ***する***部分８０ａを含む底壁８０を有する。基部１２の底壁８０には、***部分８０ａを囲繞する略平坦な環状面（図示せず）が形成され、この環状面に沿って、ケース７６を基部１２に固定するための接着剤（図示せず）が塗布される。 The polarized electromagnetic relay 10 further includes a case 76 that accommodates the electromagnet device 14, the contact portion 16, and the force transmission member 18 and is fixed to the base portion 12 (FIG. 1). The case 76 is made of an electrically insulating resin molded product having a rectangular parallelepiped outline, and an opening 78 for inserting the electromagnet device 14, the contact portion 16, and the force transmission member 18 into the portion corresponding to one surface of the rectangular parallelepiped outline. Defined. On the other hand, the base 12 has a bottom wall 80 that includes a raised portion 80 a that is exposed from the case 76 and protrudes outward when secured to the case 76. A substantially flat annular surface (not shown) is formed on the bottom wall 80 of the base portion 12 so as to surround the raised portion 80a, and an adhesive for fixing the case 76 to the base portion 12 along the annular surface (see FIG. (Not shown) is applied.

以下、有極電磁継電器１０の動作を説明する。力伝達部材１８は、電磁石２６の駆動による前述した接極子２８のコイル中心軸線３４ａに平行な方向への直線移動に伴い、同様にコイル中心軸線３４ａに平行な方向へ直線移動して、接極子２８の動作を接点部１６の可動接点ばね部材６０に伝達し、以って接点部１６を開閉動作させる。ここで、可動接点ばね部材６０は、それ自体のばね作用により、可動接点５８を第１の固定接点部材６４のメーク固定接点６２から離れる方向へ弾性付勢し、外力を受けていない状態では、可動接点５８（ブレーク可動接点要素５８ｂ）を第２の固定接点部材６８のブレーク固定接点６６に押し付けるように構成されている。 Hereinafter, the operation of the polarized electromagnetic relay 10 will be described. The force transmission member 18 is linearly moved in the direction parallel to the coil center axis 34a in accordance with the linear movement of the armature 28 in the direction parallel to the coil center axis 34a by the driving of the electromagnet 26. 28 is transmitted to the movable contact spring member 60 of the contact portion 16, thereby opening and closing the contact portion 16. Here, the movable contact spring member 60 elastically biases the movable contact 58 in a direction away from the make fixed contact 62 of the first fixed contact member 64 by its own spring action, and in a state where no external force is received, The movable contact 58 (break movable contact element 58b) is configured to be pressed against the break fixed contact 66 of the second fixed contact member 68.

したがって、電磁石２６の休止（非励磁）時には、接極子２８は、力伝達部材１８を介して伝達される可動接点ばね部材６０のばね付勢力の下で、第１の導電板要素５４の下半部分５４ａが、継鉄３８の主部分５２の末端領域５２ａから離隔して鉄心３６の頭部４８の外縁領域４８ａに当接される休止位置に置かれる。このとき、第１の導電板要素５４と鉄心３６の頭部４８との間には、永久磁石３０による磁気吸引力が作用し、それにより接点部１６は、可動接点５８がブレーク固定接点６６に導通接触するブレーク接点閉成位置に静止保持される。 Therefore, when the electromagnet 26 is at rest (non-excitation), the armature 28 is under the spring biasing force of the movable contact spring member 60 transmitted via the force transmission member 18 and the lower half of the first conductive plate element 54. The portion 54 a is placed in a rest position that is spaced from the end region 52 a of the main portion 52 of the yoke 38 and abuts against the outer edge region 48 a of the head 48 of the iron core 36. At this time, a magnetic attractive force by the permanent magnet 30 acts between the first conductive plate element 54 and the head portion 48 of the iron core 36, whereby the movable contact 58 of the contact portion 16 becomes a break fixed contact 66. It is held stationary at the break contact closed position where it makes conductive contact.

この休止位置で、電磁石２６がメーク接点閉成方向へ作動する（励磁される）と、電磁石２６と永久磁石３０との相乗的に作用する磁気吸引力により、接極子２８は、第１の導電板要素５４の下半部分５４ａが継鉄３８の主部分５２の末端領域５２ａに当接されるとともに、第２の導電板要素５６の下半部分５６ａが鉄心３６の頭部４８の外縁領域４８ａに当接される第１の作動位置に変位する（図２）。接極子２８のこの直線的な変位動作が、接極子２８と一体的に直線移動する力伝達部材１８により、接点部１６の可動接点ばね部材６０に伝達される。第１の作動位置では、第１の導電板要素５４と継鉄主部分５２との間、及び第２の導電板要素５６と鉄心頭部４８との間に、電磁石２６及び永久磁石３０による相乗的な磁気吸引力が作用し、それにより接点部１６は、可動接点ばね部材６０のばね付勢力に抗して、可動接点５８がメーク固定接点６２に導通接触するメーク接点閉成位置に安定して静止保持される。 When the electromagnet 26 is actuated (excited) in the make contact closing direction at this resting position, the armature 28 has the first conductive property due to the magnetic attractive force acting synergistically between the electromagnet 26 and the permanent magnet 30. The lower half portion 54a of the plate element 54 is in contact with the end region 52a of the main portion 52 of the yoke 38, and the lower half portion 56a of the second conductive plate element 56 is the outer edge region 48a of the head 48 of the iron core 36. It displaces to the 1st operation position contact | abutted to (FIG. 2). This linear displacement operation of the armature 28 is transmitted to the movable contact spring member 60 of the contact portion 16 by the force transmission member 18 that linearly moves integrally with the armature 28. In the first operating position, the synergism by the electromagnet 26 and the permanent magnet 30 is between the first conductive plate element 54 and the yoke main part 52 and between the second conductive plate element 56 and the core 48. The magnetic attraction force acts, so that the contact portion 16 is stabilized at the make contact closed position where the movable contact 58 is in conductive contact with the make fixed contact 62 against the spring biasing force of the movable contact spring member 60. And is held stationary.

上記した第１の作動位置で電磁石の励磁を止めると、接極子２８は、永久磁石３０の作用により第１の作動位置に保持され、したがって接点部１６も、メーク接点閉成位置に静止保持される。そこで、電磁石２６をブレーク接点閉成方向へ作動させる（励磁する）と、電磁石２６と永久磁石３０との間の磁気反発力により、接極子２８は、第１の導電板要素５４の下半部分５４ａが継鉄３８の主部分５２の末端領域５２ａから離隔して鉄心３６の頭部４８の外縁領域４８ａに当接される第２の作動位置に変位する。この変位動作の間、力伝達部材１８は、接点部１６の可動接点ばね部材６０のばね付勢力を、接極子２８に伝えるようにも作用する。第２の作動位置では、第１の導電板要素５４と鉄心頭部４８との間に、電磁石２６及び永久磁石３０による相乗的な磁気吸引力が作用し、それにより接点部１６は、可動接点５８がブレーク固定接点６６に導通接触するブレーク接点閉成位置に安定して静止保持される。 When the excitation of the electromagnet is stopped at the first operating position described above, the armature 28 is held at the first operating position by the action of the permanent magnet 30, and therefore the contact portion 16 is also held stationary at the make contact closed position. The Therefore, when the electromagnet 26 is actuated (excited) in the break contact closing direction, the armature 28 has the lower half portion of the first conductive plate element 54 due to the magnetic repulsion between the electromagnet 26 and the permanent magnet 30. 54 a is moved away from the end region 52 a of the main portion 52 of the yoke 38 to the second operating position where it abuts on the outer edge region 48 a of the head 48 of the iron core 36. During this displacement operation, the force transmission member 18 also acts to transmit the spring biasing force of the movable contact spring member 60 of the contact portion 16 to the armature 28. In the second operating position, a synergistic magnetic attractive force by the electromagnet 26 and the permanent magnet 30 acts between the first conductive plate element 54 and the iron core head 48, whereby the contact portion 16 is moved to the movable contact. 58 is stably held stationary at the break contact closed position where the 58 is in conductive contact with the break fixed contact 66.

上記構成を有する有極電磁継電器１０は、電磁石装置１４が、磁性可動体である接極子２８及び永久磁石３０を、電磁石２６の作動によりコイル３４の中心軸線３４ａに平行な方向へ直線移動させる構成を有するものであるから、継電器全体のコイル径方向への外形寸法を効果的に削減できる利点を有する。しかも、接極子２８を構成する第１及び第２の導電板要素５４、５６が、永久磁石３０をその磁化方向に挟持するとともに磁化方向をコイル中心軸線３４ａに平行に方向付けるように構成されているから、接極子２８と永久磁石３０とからなる磁性可動体の構造を単純化及び小形化できる。さらに、電磁石２６が、鉄心３６とは別部材として、コイル外部に所望の磁路を形成できる継鉄３８を用いて、コイル周辺の所望位置に、電磁石２６の鉄心３６の頭部４８の外縁領域４８ａと継鉄３８の主部分５２の末端領域５２ａとが互いに対向かつ離間して配置される接極子駆動空間を容易に確保できるようにしているから、電磁石２６と接極子２８との相対配置の自由度が向上する。そして、接極子２８が、第１の導電板要素５４の一部分５４ａを、この接極子駆動空間に挿入した状態で、コイル中心軸線３４ａに平行な方向へ直線移動可能に設置されているから、主として第１の導電板要素５４の形状及び寸法を最適化することで、接極子２８の動作精度を確保できる。このように、有極電磁継電器１０においては、接極子２８と永久磁石３０とを含む磁性可動体の移動方向、永久磁石３０の磁化方向、並びに力伝達部材１８の移動方向を、いずれもコイル中心軸線３４ａに平行な方向としたことにより、磁性可動体の構造及びその駆動構成が単純化され、以って、有極電磁継電器１０の応答性（動作時間）が改善されるとともに、外形寸法及び製造コストが効果的に削減される。 In the polarized electromagnetic relay 10 having the above configuration, the electromagnet device 14 linearly moves the armature 28 and the permanent magnet 30 which are magnetic movable bodies in a direction parallel to the central axis 34 a of the coil 34 by the operation of the electromagnet 26. Therefore, there is an advantage that the outer dimensions in the coil radial direction of the entire relay can be effectively reduced. In addition, the first and second conductive plate elements 54 and 56 constituting the armature 28 are configured to sandwich the permanent magnet 30 in the magnetization direction and to direct the magnetization direction parallel to the coil center axis 34a. Therefore, the structure of the magnetic movable body composed of the armature 28 and the permanent magnet 30 can be simplified and miniaturized. Furthermore, the outer edge region of the head portion 48 of the iron core 36 of the electromagnet 26 is placed at a desired position around the coil by using a yoke 38 that can form a desired magnetic path outside the coil as a member separate from the iron core 36. 48a and the end region 52a of the main portion 52 of the yoke 38 can be easily secured with an armature drive space disposed opposite to and spaced from each other, so that the relative arrangement of the electromagnet 26 and the armature 28 can be ensured. The degree of freedom is improved. Since the armature 28 is installed so as to be linearly movable in a direction parallel to the coil center axis 34a in a state where the portion 54a of the first conductive plate element 54 is inserted into the armature drive space, mainly the armature 28 is installed. By optimizing the shape and size of the first conductive plate element 54, the operation accuracy of the armature 28 can be ensured. As described above, in the polarized electromagnetic relay 10, the moving direction of the magnetic movable body including the armature 28 and the permanent magnet 30, the magnetization direction of the permanent magnet 30, and the moving direction of the force transmission member 18 are all in the coil center. By adopting the direction parallel to the axis 34a, the structure of the magnetic movable body and the drive configuration thereof are simplified, thereby improving the responsiveness (operation time) of the polarized electromagnetic relay 10 and improving the external dimensions and Manufacturing costs are effectively reduced.

また、上記構成を有する有極電磁継電器１０では、接極子２８が、第１及び第２の導電板要素５４、５６の間に永久磁石３０を挟持した状態で、力伝達部材１８に固定して連結されるので、接極子２８の直線移動動作を力伝達部材１８が効率良く正確に接点部１６に伝達できる。しかも、力伝達部材１８が、コイル中心軸線３４ａに平行な方向へ長軸を配置する矩形輪郭を有して、その長手方向一端に接点部１６への着力点７２を備えるとともに、長手方向他端領域（空所７４）に接極子２８を固定する構成であるから、接極子２８及び永久磁石３０を含む磁性可動体と接点部１６との間を十分に離隔して、両者間の電気的及び磁気的な影響を可及的に低減することができる。 Further, in the polarized electromagnetic relay 10 having the above configuration, the armature 28 is fixed to the force transmission member 18 with the permanent magnet 30 sandwiched between the first and second conductive plate elements 54 and 56. Since they are connected, the force transmission member 18 can transmit the linear movement operation of the armature 28 to the contact portion 16 efficiently and accurately. In addition, the force transmission member 18 has a rectangular contour in which a long axis is arranged in a direction parallel to the coil center axis 34 a, and has a force application point 72 to the contact portion 16 at one end in the longitudinal direction and the other end in the longitudinal direction. Since the armature 28 is fixed to the region (the space 74), the magnetic movable body including the armature 28 and the permanent magnet 30 and the contact portion 16 are sufficiently separated from each other, Magnetic influence can be reduced as much as possible.

有極電磁継電器１０において、電磁石２６の巻枠３２は、その第１鍔部４２（図２）から外方へ延長される延長部分８２（図１）をさらに備える。巻枠３２の延長部分８２には、コイル３４を形成する導線８４がそれぞれに接続される３個のコイル端子８６が、コイル中心軸線３４ａに直交する方向へ整列して、固定して支持される。なお、巻枠３２、コイル３４及びコイル端子８６から構成される組立体（つまり電磁石２６から鉄心３６及び継鉄３８を除去したもの）を、本願では「コイル組立」と称する。 In the polarized electromagnetic relay 10, the winding frame 32 of the electromagnet 26 further includes an extension portion 82 (FIG. 1) that extends outward from the first flange portion 42 (FIG. 2). Three coil terminals 86 to which the conductive wires 84 forming the coil 34 are connected respectively are aligned and fixedly supported on the extension portion 82 of the winding frame 32 in a direction perpendicular to the coil center axis 34a. . Note that an assembly including the winding frame 32, the coil 34, and the coil terminal 86 (that is, the iron magnet 36 and the yoke 38 removed from the electromagnet 26) is referred to as “coil assembly” in the present application.

次に、図３〜図７を参照して、本発明に係る有極電磁継電器の構成を説明する。なお、本発明に係る有極電磁継電器は、主としてコイル組立の構成が異なることを除いて、前述した有極電磁継電器１０と実質的同一の構成を有するので、対応する構成要素には共通の参照符号を付して、その詳細な説明を省略する。 Next, with reference to FIGS. 3-7, the structure of the polarized electromagnetic relay which concerns on this invention is demonstrated. The polarized electromagnetic relay according to the present invention has substantially the same configuration as that of the polarized electromagnetic relay 10 described above except that the configuration of the coil assembly is mainly different. Reference numerals are assigned and detailed description thereof is omitted.

図３は、本発明に係る有極電磁継電器のコイル組立９０を示す。コイル組立９０は、前述した有極電磁継電器１０のコイル組立と置換して、電磁石２６（図１）を構成することができるものであり、それにより、本発明の一実施形態による有極電磁継電器が提供される。 FIG. 3 shows a coil assembly 90 of a polarized electromagnetic relay according to the present invention. The coil assembly 90 can replace the coil assembly of the above-described polarized electromagnetic relay 10 to constitute the electromagnet 26 (FIG. 1), whereby the polarized electromagnetic relay according to one embodiment of the present invention. Is provided.

コイル組立９０は、中心軸線９２ａを有するコイル９２と、コイル９２が巻き付けられる巻枠９４と、巻枠９４に固定して支持され、コイル９２を形成する導線９６がそれぞれに接続される４個のコイル端子９８、１００、１０２、１０４とを備える。巻枠９４は、有極電磁継電器１０の巻枠３２と同様に、中空円筒状の胴部１０６と、胴部１０６の長手方向両端に設けられる環状平板状の第１及び第２鍔部１０８、１１０と、第１鍔部１０８から外方へ延長される延長部分１１２とを備える。コイル９２は、巻枠９４の胴部１０６に導線９６の所要長さ部分を密に巻着して形成され、巻枠９４の両鍔部１０８、１１０の間に固定的に保持される。４個のコイル端子９８、１００、１０２、１０４は、巻枠９４の延長部分１１２に、コイル中心軸線９２ａに直交する方向へ整列して略等間隔に配置されている。 The coil assembly 90 includes a coil 92 having a central axis 92 a, a winding frame 94 around which the coil 92 is wound, and four lead wires 96 that are fixedly supported by the winding frame 94 and connected to each of the conductive wires 96 forming the coil 92. Coil terminals 98, 100, 102, and 104 are provided. As with the winding frame 32 of the polarized electromagnetic relay 10, the winding frame 94 includes a hollow cylindrical body portion 106, and annular flat plate-like first and second flange portions 108 provided at both longitudinal ends of the body portion 106, 110 and an extension 112 extending outward from the first collar 108. The coil 92 is formed by tightly winding a required length portion of the conducting wire 96 around the body portion 106 of the winding frame 94, and is fixedly held between both flange portions 108 and 110 of the winding frame 94. The four coil terminals 98, 100, 102, 104 are arranged at substantially equal intervals in the extension portion 112 of the winding frame 94 so as to be aligned in a direction orthogonal to the coil center axis 92 a.

コイル９２は、４個のコイル端子９８、１００、１０２、１０４のうちいずれか２個のコイル端子からなる端子対をそれぞれに含む２つの励磁回路を構成する。具体的には、整列方向に見て両端に位置する第１及び第２コイル端子９８、１００と、第１及び第２のコイル端子９８、１００の間で第１のコイル端子９８に近い側に位置する第３のコイル端子１０２と、第１及び第２のコイル端子９８、１００の間で第２のコイル端子１００に近い側に位置する第４のコイル端子１０４とに対し、図示のように一対のコイル電源１１４が切り換え可能に接続されて、第１及び第３コイル端子９８、１０２が１つの励磁回路１１６ａの端子対を構成し、第２及び第４コイル端子１００、１０４が他の１つの励磁回路１１６ｂの端子対を構成するようになっている。これら励磁回路１１６ａ、１１６ｂはそれぞれ、コイル組立９０を有する電磁石（例えば電磁石２６）をメーク接点閉成方向及びブレーク接点閉成方向に励磁するための回路であって、図示構成では、コイル９２の導線９６は、いずれの励磁回路１１６ａ、１１６ｂにおいても巻枠胴部１０６に同一方向へ巻着されている。 The coil 92 constitutes two excitation circuits each including a terminal pair composed of any two of the four coil terminals 98, 100, 102, and 104. Specifically, between the first and second coil terminals 98 and 100 located at both ends when viewed in the alignment direction and the first and second coil terminals 98 and 100, the side closer to the first coil terminal 98. For the third coil terminal 102 located and the fourth coil terminal 104 located on the side closer to the second coil terminal 100 between the first and second coil terminals 98, 100 as shown in the figure A pair of coil power supplies 114 are connected in a switchable manner, the first and third coil terminals 98 and 102 form a terminal pair of one excitation circuit 116a, and the second and fourth coil terminals 100 and 104 are the other one. A pair of terminals of the two excitation circuits 116b is configured. Each of the excitation circuits 116a and 116b is a circuit for exciting an electromagnet (for example, the electromagnet 26) having the coil assembly 90 in the make contact closing direction and the break contact closing direction. 96 is wound around the winding drum body 106 in the same direction in any of the excitation circuits 116a and 116b.

４個のコイル端子９８、１００、１０２、１０４の各々は、導線９６が接続される絡げ部分９８ａ、１００ａ、１０２ａ、１０４ａと、絡げ部分９８ａ、１００ａ、１０２ａ、１０４ａから離隔した端末部分９８ｂ、１００ｂ、１０２ｂ、１０４ｂとを有し、絡げ部分９８ａ、１００ａ、１０２ａ、１０４ａと端末部分９８ｂ、１００ｂ、１０２ｂ、１０４ｂとが巻枠９４の外方へ突出して配置される。また、巻枠９４は、２つの励磁回路１１６ａ、１１６ｂのそれぞれの端子対における一方のコイル端子（図では第１及び第２コイル端子９８、１００）の絡げ部分（図では絡げ部分９８ａ、１００ａ）が突出する側の第１表面（図では延長部分１１２の第１表面１１２ａ）と、第１表面の反対側であって、当該一方のコイル端子の端末部分（図では端末部分９８ｂ、１００ｂ）が突出する側の第２表面（図では延長部分１１２の第２表面１１２ｂ）とを備える。 Each of the four coil terminals 98, 100, 102, 104 has a binding portion 98 a, 100 a, 102 a, 104 a to which the conducting wire 96 is connected, and a terminal portion 98 b separated from the binding portions 98 a, 100 a, 102 a, 104 a. , 100b, 102b, 104b, and the binding portions 98a, 100a, 102a, 104a and the terminal portions 98b, 100b, 102b, 104b are arranged so as to protrude outward from the reel 94. In addition, the winding frame 94 has a binding portion (a binding portion 98a in the figure, a binding portion 98a, a first coil terminal 98, 100 in the drawing) of one of the terminal pairs of the two excitation circuits 116a, 116b. 100a) from which the first surface protrudes (in the figure, the first surface 112a of the extended portion 112) and the opposite side of the first surface, and the terminal portion of the one coil terminal (in the figure, the terminal portions 98b, 100b) ) Projecting from the second surface (the second surface 112b of the extension 112 in the figure).

さらに詳述すれば、図示実施形態では、第１及び第２コイル端子９８、１００は、巻枠９４の延長部分１１２の第１表面１１２ａからコイル中心軸線９２ａに略直交する方向へ突出する一端の絡げ部分９８ａ、１００ａと、延長部分１１２の第２表面１１２ｂからコイル中心軸線９２ａに略直交する方向へ突出する他端の端末部分９８ｂ、１００ｂとをそれぞれに有し、絡げ部分９８ａ、１００ａ同士及び端末部分９８ｂ、１００ｂ同士を互いに平行に配置して延長部分１１２に設置される。他方、第３及び第４コイル端子１０２、１０４は、巻枠９４の延長部分１１２からコイル中心軸線９２ａに略平行な方向へ突出する一端の絡げ部分１０２ａ、１０４ａと、延長部分１１２の第２表面１１２ｂからコイル中心軸線９２ａに略直交する方向へ突出する他端の端末部分１０２ｂ、１０４ｂとをそれぞれに有し、端末部分１０２ｂ、１０４ｂを第１及び第２コイル端子９８、１００の端末部分９８ｂ、１００ｂに平行に配置して延長部分１１２に設置される。このような端子形態により、コイル組立９０を作製するための、既存の巻線機を用いた自動巻線作業を、円滑に遂行することができる。 More specifically, in the illustrated embodiment, the first and second coil terminals 98, 100 are at one end protruding in a direction substantially perpendicular to the coil center axis 92 a from the first surface 112 a of the extension portion 112 of the winding frame 94. The binding portions 98a, 100a and the other end portions 98b, 100b projecting in a direction substantially perpendicular to the coil center axis 92a from the second surface 112b of the extension portion 112 are respectively provided. The terminal portions 98b and 100b are arranged in parallel to each other and installed on the extension portion 112. On the other hand, the third and fourth coil terminals 102, 104 are entangled portions 102 a, 104 a at one end protruding in a direction substantially parallel to the coil center axis 92 a from the extension portion 112 of the winding frame 94, and the second of the extension portion 112. Terminal portions 102b and 104b at the other ends projecting from the surface 112b in a direction substantially perpendicular to the coil center axis 92a, respectively, and the terminal portions 102b and 104b are terminal portions 98b of the first and second coil terminals 98 and 100, respectively. , 100b and placed on the extension 112. With such a terminal configuration, an automatic winding operation using an existing winding machine for producing the coil assembly 90 can be smoothly performed.

このように、上記したコイル組立９０では、４個のコイル端子９８、１００、１０２、１０４が、巻枠９４の第１鍔部１０８から外方へ延長される延長部分１１２に、コイル中心軸線９２ａに直交する方向へ整列して固定的に支持されているから、個々のコイル端子９８、１００、１０２、１０４に導線９６を結線して巻枠９４上にコイル９２を形成する自動巻線作業を、断線等の欠陥を生じることなく安全かつ正確に実施することができる。したがって、コイル組立９０を有する電磁石２６（図１）を備えた本発明の一実施形態による有極電磁継電器は、コイル組立９０の歩留まりを向上させて製造コストを削減でき、安価でかつ構造信頼性に優れた高品質のものとなる。また、この有極電磁継電器は、コイル９２が２つの励磁回路１１６ａ、１１６ｂを構成しているから、動作状態（すなわちメーク接点閉成状態）と復帰状態（すなわちブレーク接点閉成状態）との迅速な切り換えが可能で、しかもいずれの状態においても接点部１６（図１）を安定して接点閉成状態に保持できるものである。 As described above, in the coil assembly 90 described above, the four coil terminals 98, 100, 102, 104 are arranged on the extension portion 112 extending outward from the first flange portion 108 of the winding frame 94 to the coil center axis 92 a. Since the wire 96 is connected to the individual coil terminals 98, 100, 102, 104 to form the coil 92 on the winding frame 94, the automatic winding operation is performed. It can be carried out safely and accurately without causing defects such as disconnection. Therefore, the polarized electromagnetic relay according to an embodiment of the present invention including the electromagnet 26 (FIG. 1) having the coil assembly 90 can improve the yield of the coil assembly 90 and reduce the manufacturing cost, and is inexpensive and has structural reliability. High quality with excellent quality. Further, in this polarized electromagnetic relay, since the coil 92 constitutes two excitation circuits 116a and 116b, the operation state (that is, the make contact closed state) and the return state (that is, the break contact closed state) can be quickly performed. In addition, the contact portion 16 (FIG. 1) can be stably maintained in the contact closed state in any state.

上記したコイル組立９０では、連続する１本の導線９６によってコイル９２の全体を形成し、第１及び第２コイル端子９８、１００に導線９６の両線端部をそれぞれ接続するとともに、第３及び第４コイル端子１０２、１０４に導線９６の中間部を接続する構成とすることができる。この場合も、第１及び第３コイル端子９８、１０２が１つの励磁回路１１６ａの端子対として機能し、かつ第２及び第４コイル端子１００、１０４が他の１つの励磁回路１１６ｂの端子対として機能する。このような構成によれば、導線９６でコイル９２を形成する自動巻線作業が一層迅速化され、コイル組立９０を用いた有極電磁継電器の製造コストが削減される。 In the coil assembly 90 described above, the entire coil 92 is formed by one continuous conducting wire 96, both ends of the conducting wire 96 are connected to the first and second coil terminals 98, 100, respectively, The fourth coil terminals 102 and 104 can be configured to connect the intermediate portion of the conducting wire 96. Also in this case, the first and third coil terminals 98 and 102 function as a terminal pair of one excitation circuit 116a, and the second and fourth coil terminals 100 and 104 serve as a terminal pair of the other excitation circuit 116b. Function. According to such a configuration, the automatic winding operation of forming the coil 92 with the conductive wire 96 is further accelerated, and the manufacturing cost of the polarized electromagnetic relay using the coil assembly 90 is reduced.

或いは、連続する１本の導線９６によってコイル９２の全体を形成する代わりに、２つの励磁回路１１６ａ、１１６ｂのそれぞれに互いに異なる導線９６を用いて、２本の導線９６でコイル９２を形成することもできる。この場合、１本の導線９６の両線端部が第１及び第３コイル端子９８、１０２に接続され、他の１本の導線９６の両線端部が第２及び第４コイル端子１００、１０４に接続されて、２つの励磁回路１１６ａ、１１６ｂが互いに電気的に絶縁された構成となる。このような構成によれば、例えば、上記した自動巻線作業において、巻枠９４の胴部１０６上で径方向内側に配置される（つまり先に巻かれる）励磁回路１１６ａ用のコイル部分と、同径方向外側に配置される（つまり後で巻かれる）励磁回路１１６ｂ用のコイル部分とを、互いに線径の異なる導線で形成することにより、両コイル部分の巻線効率を均等化することができる。電磁石をメーク接点閉成方向及びブレーク接点閉成方向に励磁するための２つの励磁回路１１６ａ、１１６ｂの巻線効率を均等化することで、接点部におけるメーク接点閉成動作及びブレーク接点閉成動作の応答性や速度を均等化できる。 Alternatively, instead of forming the entire coil 92 by one continuous conductive wire 96, the two excitation wires 116 a and 116 b may be formed by using different conductive wires 96 to form the coil 92 by the two conductive wires 96. You can also. In this case, both wire ends of one conductive wire 96 are connected to the first and third coil terminals 98, 102, and both wire end portions of the other single conductive wire 96 are connected to the second and fourth coil terminals 100, 104, the two excitation circuits 116a and 116b are electrically insulated from each other. According to such a configuration, for example, in the above-described automatic winding operation, the coil portion for the excitation circuit 116a that is disposed radially inside (that is, wound first) on the body portion 106 of the winding frame 94, and It is possible to equalize the winding efficiency of both coil portions by forming the coil portions for the exciting circuit 116b arranged on the outer side in the same radial direction (that is, wound later) with conductive wires having different wire diameters. it can. By making the winding efficiencies of the two excitation circuits 116a and 116b for exciting the electromagnet in the make contact closing direction and the break contact closing direction uniform, the make contact closing operation and the break contact closing operation in the contact portion are performed. Responsiveness and speed can be equalized.

上記構成を有するコイル組立９０は、４個のコイル端子９８、１００、１０２、１０４の整列方向内側に配置される第３及び第４コイル端子１０２、１０４の絡げ部分１０２ａ、１０４ａが予め、巻枠９４の延長部分１１２からコイル中心軸線９２ａに略平行な方向へ突出するように形成されているから、例えばコイル組立９０を用いて図１に示す電磁石２６を組み立てる際に、図４に示すように、鉄心３６の軸部４６を巻枠９４の第１鍔部１０８側から胴部１０６の中に容易に挿入することができる（図４（ａ））。その後、第３及び第４コイル端子１０２、１０４の絡げ部分１０２ａ、１０４ａを、巻枠９４の延長部分１１２上で、第１及び第２コイル端子９８、１００の絡げ部分９８ａ、１００ａに略平行な位置まで折り曲げることにより、ケース７６（図１）に収納可能な形態にすることができる（図４（ｂ））。 In the coil assembly 90 having the above-described configuration, the entangled portions 102a and 104a of the third and fourth coil terminals 102 and 104 arranged on the inner side in the alignment direction of the four coil terminals 98, 100, 102, and 104 are wound beforehand. Since the extension part 112 of the frame 94 is formed so as to protrude in a direction substantially parallel to the coil center axis 92a, for example, when the electromagnet 26 shown in FIG. 1 is assembled using the coil assembly 90, as shown in FIG. In addition, the shaft portion 46 of the iron core 36 can be easily inserted into the body portion 106 from the first flange portion 108 side of the winding frame 94 (FIG. 4A). After that, the binding portions 102a and 104a of the third and fourth coil terminals 102 and 104 are substantially the same as the binding portions 98a and 100a of the first and second coil terminals 98 and 100 on the extension portion 112 of the winding frame 94. By bending to a parallel position, the case 76 (FIG. 1) can be accommodated (FIG. 4B).

本発明に係る有極電磁継電器は、コイル組立９０の構成以外にも、前述した有極電磁継電器１０の構成に様々な修正を施したものとすることができる。
例えば、図５に示すように、基部１２は、電磁石２６を部分的に収容して電磁石２６と接点部１６との間に介在する筒状壁２４の外面に、コイル中心軸線９２ａに平行な方向へ延設される溝１１８を備えることができる（図５（ａ））。図示実施形態では、継鉄３８の主部分５２を収容する筒状壁２４の上端部分７０の下側に隣接して、筒状壁２４の両側面に一対の溝１１８が、コイル中心軸線９２ａに平行な方向へ直線状に延設される（図５（ｂ））。他方、力伝達部材１８は、平面視で一対の長辺に相当する両側壁の内側に、筒状壁２４の一対の溝１１８に個々に摺動式に係合する一対の突起１２０を備えることができる（図５（ｂ））。対応する溝１１８及び突起１２０は、互いに協働して、電磁石装置１４の作動時に、力伝達部材１８をコイル中心軸線９２ａに平行な方向へ案内する。なお、図５に示す力伝達部材１８は、図１の力伝達部材１８に対し、突起１２０の周辺の材料を除去して、より軽量化を図ったものとなっている。 In addition to the configuration of the coil assembly 90, the polarized electromagnetic relay according to the present invention can be obtained by variously modifying the configuration of the polarized electromagnetic relay 10 described above.
For example, as shown in FIG. 5, the base 12 is a direction parallel to the coil center axis 92 a on the outer surface of the cylindrical wall 24 that partially accommodates the electromagnet 26 and is interposed between the electromagnet 26 and the contact portion 16. A groove 118 can be provided (FIG. 5A). In the illustrated embodiment, adjacent to the lower side of the upper end portion 70 of the cylindrical wall 24 that accommodates the main portion 52 of the yoke 38, a pair of grooves 118 are formed on both side surfaces of the cylindrical wall 24 on the coil center axis 92a. It extends linearly in a parallel direction (FIG. 5B). On the other hand, the force transmission member 18 includes a pair of protrusions 120 that are individually slidably engaged with the pair of grooves 118 of the cylindrical wall 24 inside the side walls corresponding to the pair of long sides in plan view. (FIG. 5B). Corresponding grooves 118 and protrusions 120 cooperate with each other to guide the force transmission member 18 in a direction parallel to the coil center axis 92a when the electromagnet device 14 is actuated. Note that the force transmission member 18 shown in FIG. 5 is made lighter by removing the material around the protrusions 120 from the force transmission member 18 shown in FIG.

また、図６に示すように、接極子２８の第１の導電板要素５４は、鉄心３６の頭部４８の外縁領域４８ａと継鉄３８の主部分５２の末端領域５２ａとの間（図２）に挿入される一部分（下半部分）５４ａの、コイル９２に対向する側の外縁に、コイル９２の外周形状に対応する湾曲形状の凹所１２２を有することができる。第１の導電板要素５４に凹所１２２を設けることにより、鉄心頭部４８及び継鉄主部分５２に交互に吸着される接極子２８の第１の導電板要素５４の寸法を、所要の吸着力及び剛性を確保できる範囲に維持しつつ、接極子２８をコイル９２に可及的に接近させて配置することができる。その結果、遊休空間が排除され、有極電磁継電器の小形化（特に低背化）が促進される。なお、第２の導電板要素５６も同様に凹所１２２を有する構成とすることで、第１及び第２の導電板要素５４、５６に共通部品を使用できる利点が得られる（図７）。 Further, as shown in FIG. 6, the first conductive plate element 54 of the armature 28 is located between the outer edge region 48a of the head 48 of the iron core 36 and the end region 52a of the main portion 52 of the yoke 38 (FIG. 2). ), A concave portion 122 having a curved shape corresponding to the outer peripheral shape of the coil 92 can be provided on the outer edge of the portion (lower half portion) 54a inserted into the outer surface of the coil 92. By providing the recess 122 in the first conductive plate element 54, the dimension of the first conductive plate element 54 of the armature 28 alternately attracted to the iron core head 48 and the yoke main portion 52 is set to the required adsorption. The armature 28 can be arranged as close as possible to the coil 92 while maintaining the force and rigidity within a range that can be secured. As a result, idle space is eliminated, and miniaturization (especially low profile) of the polarized electromagnetic relay is promoted. The second conductive plate element 56 is similarly configured to have the recess 122, so that a common part can be used for the first and second conductive plate elements 54 and 56 (FIG. 7).

ここで、接極子２８の第１及び第２の導電板要素５４、５６は、磁性鋼板等の導電板素材から打抜き成形した結果として、輪郭に沿った縁にダレが形成される場合がある。このようなダレは、例えば、第１及び第２の導電板要素５４、５６を力伝達部材１８の空所７４（図１）に圧入する際に、導電板要素５４、５６及び力伝達部材１８の双方の損傷を防止しつつ円滑な圧入を可能にする面取り部分１２４（図６、図７）として機能する。そこで、接極子２８の圧入工程に際しては、最初に第１及び第２の導電板要素５４、５６を、そのようなダレ（面取り部分１２４）を縁に有する表面５４ｂ、５６ｂを互いに離反する外側に向けた配置（図７）で、力伝達部材１８の空所７４に圧入している。そしてその後に、永久磁石３０を、力伝達部材１８の空所７４内に有る第１及び第２の導電板要素５４、５６の間に圧入する。なお、図６及び図７の例では、各導電板要素５４、５６の凹所１２２に隣接する下縁に、打抜き成形時のダレに重ねて後加工した面取り部分１２４が形成されている。 Here, the first and second conductive plate elements 54 and 56 of the armature 28 may be formed at the edge along the contour as a result of being stamped and formed from a conductive plate material such as a magnetic steel plate. Such sagging occurs when, for example, the first and second conductive plate elements 54 and 56 are press-fitted into the space 74 (FIG. 1) of the force transmission member 18, and the conductive plate elements 54 and 56 and the force transmission member 18. It functions as a chamfered portion 124 (FIGS. 6 and 7) that enables smooth press-fitting while preventing both damages. Therefore, in the press-fitting process of the armature 28, first, the first and second conductive plate elements 54, 56 are first placed outside the surfaces 54b, 56b having such a sag (the chamfered portion 124) at their edges. It is press-fitted into the space 74 of the force transmission member 18 in the oriented arrangement (FIG. 7). Thereafter, the permanent magnet 30 is press-fitted between the first and second conductive plate elements 54 and 56 in the space 74 of the force transmission member 18. In the example of FIGS. 6 and 7, a chamfered portion 124 is formed on the lower edge adjacent to the recess 122 of each conductive plate element 54, 56 and is processed after being overlapped with a sag during punching.

上記圧入工程において、第１及び第２の導電板要素５４、５６の、ダレ（面取り部分１２４）を縁に有する表面５４ｂ、５６ｂを、作業者が目視で確認し難いことに起因して、それら導電板要素５４、５６を表裏反対の配置で力伝達部材１８の空所７４に圧入してしまう場合がある。このような誤挿入を防止する目的で、第１及び第２の導電板要素５４、５６の各々に、力伝達部材１８に対する表面５４ｂ、５６ｂ及びその反対側の裏面５４ｃ、５６ｃの向きを、作業者が容易に目し確認できるように明示する印を設けることが有利である。図６の例では、各導電板要素５４、５６の面取り部分１２４とは反対側の上縁の一方の隅に、印として機能する切欠き１２６が形成されている。作業者は、第１及び第２の導電板要素５４、５６を力伝達部材１８の空所７４に圧入する際に、印（切欠き１２６）を目視確認することで、各導電板要素５４、５６の表裏を正確に方向付けて圧入し、両導電板要素５４、５６の裏面５４ｃ、５６ｃを互いに対向させた配置で力伝達部材１８に固定することができる。 In the above press-fitting step, the first and second conductive plate elements 54 and 56 have their sag (chamfered portion 124) at their edges 54b and 56b. In some cases, the conductive plate elements 54 and 56 may be press-fitted into the space 74 of the force transmission member 18 in the opposite arrangement. For the purpose of preventing such erroneous insertion, the orientation of the front surfaces 54b and 56b and the opposite back surfaces 54c and 56c with respect to the force transmission member 18 is set on each of the first and second conductive plate elements 54 and 56. It is advantageous to provide an indicia so that a person can easily see and confirm. In the example of FIG. 6, a notch 126 that functions as a mark is formed at one corner of the upper edge opposite to the chamfered portion 124 of each conductive plate element 54, 56. When the operator press-fits the first and second conductive plate elements 54, 56 into the space 74 of the force transmission member 18, the operator visually confirms the mark (notch 126), so that each conductive plate element 54, The front and back surfaces of 56 can be accurately oriented and press-fitted, and the back surfaces 54c and 56c of both conductive plate elements 54 and 56 can be fixed to the force transmission member 18 in an arrangement facing each other.

ところで、有極電磁継電器では、接極子が電磁石から受ける磁気吸引力を適宜に調整する目的で、接極子の表面に非磁性材料の層を形成する場合がある。このような層は、通常、銅等の非磁性金属のめっきによって形成される。しかし、本発明に係る有極電磁継電器は、接極子２８が電磁石２６の励磁によりコイル中心軸線９２ａ（図３）に平行な方向へ直線移動する構成を有するから、磁気吸引力による各導電板要素５４、５６と鉄心３６の頭部４８及び継鉄３８の主部分５２との衝突速度が比較的大きくなる傾向がある。そのため、各導電板要素５４、５６の表面に非磁性めっき層を形成した場合には、衝突の繰り返しによりめっき層が剥がれることが危惧される。そこで、本発明に係る有極電磁継電器は、図７に示すように、接極子２８の第１及び第２の導電板要素５４、５６の表面５４ｂ、５６ｂ及び裏面５４ｃ、５６ｃに、銅等の非磁性金属材料の層１２８を埋め込んで一体化した構成を採用している。 By the way, in a polarized electromagnetic relay, a layer of a nonmagnetic material may be formed on the surface of the armature for the purpose of appropriately adjusting the magnetic attractive force that the armature receives from the electromagnet. Such a layer is usually formed by plating a nonmagnetic metal such as copper. However, the polarized electromagnetic relay according to the present invention has a configuration in which the armature 28 linearly moves in the direction parallel to the coil center axis 92a (FIG. 3) by the excitation of the electromagnet 26. The collision speed between 54 and 56 and the head portion 48 of the iron core 36 and the main portion 52 of the yoke 38 tends to be relatively large. Therefore, when a nonmagnetic plating layer is formed on the surface of each conductive plate element 54, 56, the plating layer may be peeled off due to repeated collisions. Therefore, as shown in FIG. 7, the polarized electromagnetic relay according to the present invention is made of copper or the like on the front surfaces 54b and 56b and the back surfaces 54c and 56c of the first and second conductive plate elements 54 and 56 of the armature 28. A structure in which the layer 128 of the nonmagnetic metal material is embedded and integrated is adopted.

各導電板要素５４、５６に埋め込んで一体化された非磁性金属層１２８は、その表面積や厚みを適当に選定することにより、接極子２８が鉄心頭部４８と継鉄主部分５２との間で受ける磁気吸引力を適宜に調整することを可能にする。しかも、各導電板要素５４、５６が鉄心頭部４８及び継鉄主部分５２に対して衝突を繰返した場合にも、めっきに比べて剥離等の構造的欠陥を生じ難いから、長期に渡り、接極子２８が受ける磁気吸引力を適正に調整した状態を維持することができる。なお、第１及び第２導電板要素５４、５６に共通部品を用いる場合は、上記したように、各導電板要素５４、５６の表面５４ｂ、５６ｂ及び裏面５４ｃ、５６ｃの双方に非磁性金属層１２８を形成することが望ましい。他方、第１及び第２導電板要素５４、５６に異種部品を用いることが許容される場合は、それら導電板要素５４、５６の少なくとも一方が、表面５４ｂ、５６ｂ及び裏面５４ｃ、５６ｃの少なくとも一方に非磁性金属層１２８を埋め込んだ構成であれば良い。 The nonmagnetic metal layer 128 embedded and integrated in each of the conductive plate elements 54 and 56 has an appropriate selection of the surface area and thickness so that the armature 28 is positioned between the core head 48 and the yoke main portion 52. It is possible to appropriately adjust the magnetic attraction force received by. Moreover, even when the conductive plate elements 54 and 56 repeatedly collide against the iron core head 48 and the yoke main portion 52, structural defects such as peeling are less likely to occur compared to plating, and therefore, over a long period of time. The state in which the magnetic attractive force received by the armature 28 is appropriately adjusted can be maintained. When common parts are used for the first and second conductive plate elements 54 and 56, as described above, the nonmagnetic metal layer is formed on both the front surfaces 54b and 56b and the back surfaces 54c and 56c of the respective conductive plate elements 54 and 56. It is desirable to form 128. On the other hand, when it is allowed to use different parts for the first and second conductive plate elements 54 and 56, at least one of the conductive plate elements 54 and 56 is at least one of the front surfaces 54b and 56b and the back surfaces 54c and 56c. The nonmagnetic metal layer 128 may be embedded in the structure.

本発明の関連技術による有極電磁継電器を示す分解斜視図である。It is a disassembled perspective view which shows the polarized electromagnetic relay by the related technique of this invention. 図１の有極電磁継電器の主要構成要素を、その機能を説明するべく模式図的に示す断面図である。It is sectional drawing which shows typically the main component of the polarized electromagnetic relay of FIG. 1 in order to demonstrate the function. 本発明の一実施形態による有極電磁継電器で使用されるコイル組立の斜視図である。1 is a perspective view of a coil assembly used in a polarized electromagnetic relay according to an embodiment of the present invention. 図３のコイル組立を用いた電磁石の組立手順を示す図で、（ａ）鉄心組込前の状態、及び（ｂ）鉄心組込後の状態を示す。It is a figure which shows the assembly procedure of the electromagnet using the coil assembly of FIG. 3, (a) The state before an iron core assembly | attachment, (b) The state after an iron core assembly | attachment is shown. 図３のコイル組立を有する有極電磁継電器を、カバー以外の構成要素を適正に組み立てた状態で示す図で、（ａ）斜視図、及び（ｂ）断面図である。It is a figure which shows the polarized electromagnetic relay which has the coil assembly of FIG. 3 in the state which assembled | assembled components other than a cover appropriately, (a) A perspective view, (b) It is sectional drawing. 図３のコイル組立を、接極子及び永久磁石を含む磁性可動体と共に示す斜視図である。It is a perspective view which shows the coil assembly of FIG. 3 with the magnetic movable body containing an armature and a permanent magnet. 図６の磁性可動体の変形例を示す拡大断面図である。It is an expanded sectional view which shows the modification of the magnetic movable body of FIG.

符号の説明Explanation of symbols

１０有極電磁継電器
１２基部
１４電磁石装置
１６接点部
１８力伝達部材
２４筒状壁
２６電磁石
２８接極子
３０永久磁石
３２、９４巻枠
３４、９２コイル
３４ａ、９２ａ中心軸線
３６鉄心
３８継鉄
４０胴部
４６軸部
４８頭部
４８ａ外縁領域
５２主部分
５２ａ末端領域
５４第１の導電板要素
５６第２の導電板要素
５４ａ、５６ａ一部分
５４ｂ、５６ｂ表面
５４ｃ、５６ｃ裏面
８２、１１２延長部分
８６、９８、１００、１０２、１０４コイル端子
９０コイル組立
９６導線
１１６ａ、１１６ｂ励磁回路
１１８溝
１２０突起
１２２凹所
１２４面取り部分
１２６切欠き DESCRIPTION OF SYMBOLS 10 Polar electromagnetic relay 12 Base 14 Electromagnet apparatus 16 Contact part 18 Force transmission member 24 Cylindrical wall 26 Electromagnet 28 Armature 30 Permanent magnet 32, 94 Winding frame 34, 92 Coil 34a, 92a Center axis 36 Iron core 38 Relay 40 Body Part 46 shaft part 48 head part 48a outer edge area 52 main part 52a terminal area 54 first conductive plate element 56 second conductive plate element 54a, 56a part 54b, 56b surface 54c, 56c back surface 82, 112 extension part 86, 98 , 100, 102, 104 Coil terminal 90 Coil assembly 96 Conductor 116a, 116b Excitation circuit 118 Groove 120 Protrusion 122 Recess 124 Chamfered portion 126 Notch

Claims

基部と、該基部に組み付けられる電磁石装置と、該電磁石装置から絶縁されて該基部に組み付けられる接点部と、該電磁石装置と該接点部との間に配置され、該電磁石装置の作用により移動して該接点部を開閉動作させる力伝達部材とを具備し、該電磁石装置が、電磁石と、該電磁石によって駆動される接極子と、該接極子に担持される永久磁石とを備えて構成される、有極電磁継電器において、
前記電磁石は、中心軸線を有するコイルと、該コイルの該中心軸線に沿って配置される軸部及び該軸部の軸線方向一端から該コイルの径方向外方へ延長される頭部を有する鉄心と、該鉄心の該軸部の軸線方向他端に連結されて該コイルの外側に延設され、該中心軸線に略平行に延びる主部分を含む継鉄とを備え、該鉄心の該頭部の外縁領域と該継鉄の該主部分の末端領域とが互いに対向かつ離間して配置され、
前記接極子は、前記永久磁石をその磁化方向に挟持するとともに該磁化方向を前記コイルの前記中心軸線に平行に方向付けて配置される第１及び第２の導電板要素を有し、該第１の導電板要素の一部分を、前記鉄心の前記頭部の前記外縁領域と前記継鉄の前記主部分の前記末端領域との間に挿入した状態で、前記中心軸線に平行な方向へ直線移動可能に設置され、
前記力伝達部材は、前記電磁石の駆動による前記中心軸線に平行な方向への前記接極子の直線移動に伴い、前記中心軸線に平行な方向へ直線移動して、前記接点部を開閉動作させるように構成され、
前記電磁石は、前記コイルが巻き付けられる巻枠と、前記コイルの前記中心軸線に直交する方向へ整列して該巻枠に支持され、前記コイルを形成する導線がそれぞれに接続される４個のコイル端子とを備えること、
を特徴とする有極電磁継電器。 A base, an electromagnet device assembled to the base, a contact portion insulated from the electromagnet device and assembled to the base, and disposed between the electromagnet device and the contact portion, and moved by the action of the electromagnet device A force transmission member that opens and closes the contact portion, and the electromagnet device includes an electromagnet, an armature driven by the electromagnet, and a permanent magnet carried by the armature. In a polarized electromagnetic relay,
The electromagnet includes a coil having a center axis, a shaft portion arranged along the center axis of the coil, and a head portion extending from one end in the axial direction of the shaft portion outward in the radial direction of the coil. And a yoke including a main portion connected to the other axial end of the shaft portion of the iron core and extending outside the coil and extending substantially parallel to the central axis, and the head portion of the iron core The outer edge region and the end region of the main portion of the yoke are disposed opposite to and spaced from each other,
The armature includes first and second conductive plate elements that are disposed so that the permanent magnet is sandwiched in the magnetization direction and the magnetization direction is oriented parallel to the central axis of the coil. A part of one conductive plate element is linearly moved in a direction parallel to the central axis while being inserted between the outer edge region of the head portion of the iron core and the end region of the main portion of the yoke. Installed,
The force transmission member linearly moves in a direction parallel to the central axis along with the linear movement of the armature in a direction parallel to the central axis by driving the electromagnet, thereby opening and closing the contact portion. Composed of
The electromagnet includes a winding frame around which the coil is wound, and four coils that are supported by the winding frame and aligned in a direction perpendicular to the central axis of the coil, and the conductive wires forming the coil are connected to each other. A terminal,
A polarized electromagnetic relay.

前記４個のコイル端子は、それらの整列方向に見て両端に位置する第１及び第２のコイル端子と、該第１及び第２のコイル端子の間で該第１のコイル端子に近い側に位置する第３のコイル端子と、該第１及び第２のコイル端子の間で該第２のコイル端子に近い側に位置する第４のコイル端子とを含み、前記コイルは、該第１及び第３のコイル端子に接続される前記導線により１つの励磁回路を構成するとともに、該第２及び第４のコイル端子に接続される前記導線により他の１つの励磁回路を構成する、請求項１に記載の有極電磁継電器。 The four coil terminals include first and second coil terminals located at both ends when viewed in the alignment direction, and a side closer to the first coil terminal between the first and second coil terminals. A third coil terminal located on the side closer to the second coil terminal between the first and second coil terminals, the coil comprising the first coil terminal And the conducting wire connected to the third coil terminal constitutes one excitation circuit, and the conducting wire connected to the second and fourth coil terminals constitutes another excitation circuit. The polarized electromagnetic relay according to 1.

前記コイルが２本の前記導線を有し、１本の前記導線の両線端部が前記第１及び第３のコイル端子に接続されるとともに、他の１本の前記導線の両線端部が前記第２及び第４のコイル端子に接続されて、互いに電気的に絶縁された２つの前記励磁回路が構成される、請求項２に記載の有極電磁継電器。 The coil has two conductors, both ends of one conductor are connected to the first and third coil terminals, and both ends of the other conductor The polarized electromagnetic relay according to claim 2, wherein two excitation circuits connected to the second and fourth coil terminals and electrically insulated from each other are configured.

前記基部は、前記電磁石を部分的に収容して、前記電磁石と前記接点部との間に介在する筒状壁を有し、該筒状壁の外面に、前記コイルの前記中心軸線に平行な方向へ延びる溝が形成され、前記力伝達部材は、該溝に摺動式に係合する突起を有する、請求項１〜３のいずれか１項に記載の有極電磁継電器。 The base portion has a cylindrical wall that partially accommodates the electromagnet and is interposed between the electromagnet and the contact portion, and is parallel to the central axis of the coil on the outer surface of the cylindrical wall. The polarized electromagnetic relay according to claim 1, wherein a groove extending in a direction is formed, and the force transmission member has a protrusion that slidably engages with the groove.

前記接極子の前記第１の導電板要素は、前記鉄心の前記頭部の前記外縁領域と前記継鉄の前記主部分の前記末端領域との間に挿入される前記一部分の、前記コイルに対向する外縁に、前記コイルの外周形状に対応する湾曲形状の凹所を有する、請求項１〜４のいずれか１項に記載の有極電磁継電器。 The first conductive plate element of the armature faces the coil of the portion inserted between the outer edge region of the head portion of the iron core and the end region of the main portion of the yoke. The polarized electromagnetic relay according to any one of claims 1 to 4, wherein the outer edge has a curved recess corresponding to the outer peripheral shape of the coil.

前記接極子の前記第１及び第２の導電板要素は、導電板素材から打抜き成形した結果のダレを縁に有する表面と、該表面の反対側の裏面とを各々に備えて、該裏面を互いに対向させた配置で前記力伝達部材に固定され、前記第１及び第２の導電板要素の各々に、前記力伝達部材に対する該表面及び該裏面の向きを明示する印が設けられる、請求項１〜５のいずれか１項に記載の有極電磁継電器。 The first and second conductive plate elements of the armature each include a surface having a sag resulting from punching and forming from a conductive plate material, and a back surface on the opposite side of the surface. The first and second conductive plate elements are fixed to the force transmission member in an arrangement facing each other, and each of the first and second conductive plate elements is provided with a mark that clearly indicates the orientation of the front surface and the rear surface with respect to the force transmission member. The polarized electromagnetic relay of any one of 1-5.

前記接極子の前記第１及び第２の導電板要素の少なくとも一方は、前記表面及び前記裏面の少なくとも一方に埋め込まれた非磁性金属層を一体的に備える、請求項１〜６のいずれか１項に記載の有極電磁継電器。 The at least one of the first and second conductive plate elements of the armature integrally includes a nonmagnetic metal layer embedded in at least one of the front surface and the back surface. The polarized electromagnetic relay described in the paragraph.