JP2006310251A - Conductive bar for relay and its manufacturing method - Google Patents

Conductive bar for relay and its manufacturing method Download PDF

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JP2006310251A
JP2006310251A JP2005255400A JP2005255400A JP2006310251A JP 2006310251 A JP2006310251 A JP 2006310251A JP 2005255400 A JP2005255400 A JP 2005255400A JP 2005255400 A JP2005255400 A JP 2005255400A JP 2006310251 A JP2006310251 A JP 2006310251A
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fixed
conductive bar
contact
iron core
movable
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JP2005255400A
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Japanese (ja)
Inventor
Ritsu Yamamoto
律 山本
Riichi Uotome
利一 魚留
Tadahiro Itou
督裕 伊東
Motoharu Kubo
基治 久保
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To reduce operation noises by reducing noise generation from an external electric line and a part where the external electric line is fixed. <P>SOLUTION: A conductive bar 4 is electrically connected and fixed with a fixed terminal 21 at a coupling hole 40 and connected with an external electric line at a screw hole 41, and the conductive bar 4 is created so that stiffness of the center part 43 is made lower than that of an end part by differentiating a composition of the center part 43 between both ends from that of the both ends. In a sealed contact device, a winding coil 10 is magnetized and a movable iron core moves by suction of the fixed iron core 25, and when a movable contact point 22a contacts a fixed contact point 21a, or when a fixed iron core 25 contacts the movable iron core 26, the above conductive bar reduces a transfer of vibrations from the fixed terminal 21 to the external electric line (not shown in the figure). <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、例えば、パワー負荷用リレーや電磁開閉器等に好適なリレー(封止接点装置)に用いられるリレー用導電バー及びこの製造方法に関するものである。   The present invention relates to a conductive bar for relay used in a relay (sealed contact device) suitable for, for example, a power load relay, an electromagnetic switch, and the like, and a method for manufacturing the same.

従来、この種のリレー用導電バー(外部接続端子)は、特許文献1や図4に示すように、封止接点装置に取り付けられて用いられている。図4は、従来の封止接点装置の断面図である。   Conventionally, this type of relay conductive bar (external connection terminal) is used by being attached to a sealed contact device as shown in Patent Document 1 and FIG. FIG. 4 is a cross-sectional view of a conventional sealed contact device.

上記従来の封止接点装置は、図4において、コイル巻線10を励磁すると、可動鉄芯26が固定鉄芯25に吸引されて可動することにより、上記可動鉄芯26に固定されているシャフト23が駆動されて、可動接点22aは、接点ギャップL1を徐々に小さくしていき固定接点21aに当接する。その後、ばね負荷は、接圧ばね24のばね負荷分だけ急に大きくなり、さらにシャフト23が駆動されると、可動鉄芯26はオーバートラベル量だけ可動し、ばね負荷がさらに大きくなる。上記接点ギャップL1及びオーバートラベル量の合計は、可動鉄芯26のストロークとなっている。   In the conventional sealed contact device shown in FIG. 4, when the coil winding 10 is excited, the movable iron core 26 is attracted to and moved by the fixed iron core 25, whereby the shaft fixed to the movable iron core 26. 23 is driven, the movable contact 22a abuts on the fixed contact 21a by gradually decreasing the contact gap L1. Thereafter, the spring load suddenly increases by the amount corresponding to the spring load of the contact pressure spring 24. When the shaft 23 is further driven, the movable iron core 26 moves by the amount of overtravel, and the spring load further increases. The sum of the contact gap L1 and the amount of overtravel is the stroke of the movable iron core 26.

一方、コイル巻線10の励磁が切られると、可動接触子22は、主として復帰ばね27の付勢力でもって復帰して逆に変位し、可動接点22aが固定接点21aから開離するとともに、可動鉄芯26も復帰して元の状態に戻る。
特開平10−162676号公報(第2頁−第10頁及び第1図)
On the other hand, when the coil winding 10 is de-energized, the movable contactor 22 is returned by the urging force of the return spring 27 and displaced in reverse, so that the movable contact 22a is separated from the fixed contact 21a and is movable. The iron core 26 also returns and returns to its original state.
JP-A-10-162676 (2nd page to 10th page and FIG. 1)

しかしながら、図4において、従来のリレー用導電バー(導電バー)5は、可動接点22aが固定接点21aに当接するとき、又は固定鉄芯25と可動鉄芯26が当接するときに、固定端子21から振動が伝播されるという現象が発生した。これにより、導電バー5に固定されている外部電路(図示せず)にも振動が伝播し、外部電路や外部電路を取り付けている部材から動作音が発生してしまうという問題があった。   However, in FIG. 4, the conventional relay conductive bar (conductive bar) 5 has a fixed terminal 21 when the movable contact 22a abuts on the fixed contact 21a or when the fixed iron core 25 and the movable iron core 26 abut. The phenomenon that the vibration is propagated from. As a result, there is a problem in that vibration propagates also to an external electric circuit (not shown) fixed to the conductive bar 5 and an operation sound is generated from the external electric circuit or a member attached with the external electric circuit.

本発明は上記の点に鑑みて為されたものであり、その目的とするところは、外部電路や外部電路を取り付けている部材から発生する動作音を低減することができるリレー用導電バー及びこの製造方法を提供することにある。   The present invention has been made in view of the above points, and an object of the present invention is to provide a conductive bar for a relay that can reduce an operation noise generated from an external electric circuit or a member to which the external electric circuit is attached, and this. It is to provide a manufacturing method.

請求項1に記載の発明は、固定接点を設ける固定端子と、可動接点を設け前記可動接点が前記固定接点に接離するよう可動する可動接触手段と、前記可動接触手段を駆動して可動させる駆動手段とを備えるリレーに取り付けられるリレー用導電バーであって、低い剛性を有する導電体から形成され、一端を前記固定端子と固定して電気的に接続し、他端を外部電路と電気的に接続することを特徴とする。   According to the first aspect of the present invention, a fixed terminal provided with a fixed contact, a movable contact means provided with a movable contact and movable so that the movable contact contacts and separates from the fixed contact, and the movable contact means is driven to move. A conductive bar for a relay attached to a relay having a driving means, formed of a low-rigidity conductor, one end fixed to the fixed terminal and electrically connected, and the other end electrically connected to an external electric circuit It is characterized by connecting to.

この構成では、固定端子の振動を外部電路に伝播することを低減することができるので、外部電路や外部電路を取り付けている部材から発生する動作音を低減することができる。   In this configuration, since it is possible to reduce the propagation of the vibration of the fixed terminal to the external electric circuit, it is possible to reduce the operation noise generated from the external electric circuit or a member attached with the external electric circuit.

請求項2に記載の発明は、請求項1に記載の発明において、複数の薄板を厚み方向に重ねた構成であることを特徴とする。この構成では、各薄板の厚みが薄いので、剛性をさらに低くすることができる。   The invention according to claim 2 is the invention according to claim 1, characterized in that a plurality of thin plates are stacked in the thickness direction. In this configuration, since the thickness of each thin plate is thin, the rigidity can be further reduced.

請求項3に記載の発明は、請求項2に記載の発明において、前記複数の薄板の両端を溶接して固定することを特徴とする。この構成では、両端の剛性を高くすることができるので、固定端子及び外部電路と安定に接続することができる。   The invention described in claim 3 is the invention described in claim 2, wherein both ends of the plurality of thin plates are fixed by welding. In this configuration, the rigidity at both ends can be increased, so that the fixed terminal and the external electric circuit can be stably connected.

請求項4に記載の発明は、請求項2又は3に記載の発明において、前記複数の薄板において、各薄板の両端間の長さが順に長いことを特徴とする。この構成では、曲げ構造にすることができるとともに、固定端子の振動を吸収することができるので、動作音を低減することができる。   According to a fourth aspect of the present invention, in the invention according to the second or third aspect, in the plurality of thin plates, a length between both ends of each thin plate is long in order. In this configuration, a bending structure can be obtained, and vibrations of the fixed terminal can be absorbed, so that operation noise can be reduced.

請求項5に記載の発明は、固定接点を設ける固定端子と、可動接点を設け前記可動接点が前記固定接点に接離するよう可動する可動接触手段と、前記可動接触手段を駆動して可動させる駆動手段とを備えるリレーに取り付けられるリレー用導電バーの製造方法であって、複数の薄板を厚み方向に重ね、前記複数の薄板の両端を溶接して固定することを特徴とする。   According to a fifth aspect of the present invention, there is provided a fixed terminal provided with a fixed contact, a movable contact means provided with a movable contact and movable so that the movable contact contacts and separates from the fixed contact, and the movable contact means is driven to move. A method of manufacturing a conductive bar for a relay attached to a relay having a driving means, wherein a plurality of thin plates are stacked in a thickness direction, and both ends of the plurality of thin plates are welded and fixed.

この構成では、固定端子の振動を外部電路に伝播することを低減することができるので、外部電路や外部電路を取り付けている部材から発生する動作音を低減することができる。また、各薄板の厚みが薄いので、両端間の剛性を低くすることができるとともに、両端の剛性を高くすることができるので、固定端子及び外部電路と安定に接続することができる。   In this configuration, since it is possible to reduce the propagation of the vibration of the fixed terminal to the external electric circuit, it is possible to reduce the operation noise generated from the external electric circuit or a member attached with the external electric circuit. In addition, since the thickness of each thin plate is thin, the rigidity between both ends can be reduced and the rigidity at both ends can be increased, so that the fixed terminal and the external electric circuit can be stably connected.

本発明によれば、外部電路や外部電路を取り付けている部材から発生する動作音を低減することができる。   ADVANTAGE OF THE INVENTION According to this invention, the operation sound which generate | occur | produces from the member which has attached the external electric circuit and the external electric circuit can be reduced.

(実施形態1)
先ず、実施形態1の基本的な構成について図1を用いて説明する。図1は、実施形態1の封止接点装置の断面図である。実施形態1の封止接点装置は、駆動部1と、封止接点部2とをハウジング(図示せず)に収納して備えるとともに、導電バー(リレー用導電バー)4を備えている。
(Embodiment 1)
First, the basic configuration of the first embodiment will be described with reference to FIG. FIG. 1 is a cross-sectional view of the sealed contact device of the first embodiment. The sealed contact device according to the first embodiment includes a drive unit 1 and a sealed contact unit 2 housed in a housing (not shown) and a conductive bar (relay conductive bar) 4.

駆動部1は、コイル巻線10と、コイルボビン11と、継鉄12とを備え、後述する固定鉄芯25及び可動鉄芯26並びに継鉄上板29とともに電磁石装置を構成するものである。   The drive unit 1 includes a coil winding 10, a coil bobbin 11, and a yoke 12, and constitutes an electromagnet device together with a fixed iron core 25, a movable iron core 26, and a yoke upper plate 29 described later.

コイル巻線10は、通電時に磁束を発生させるものである。コイルボビン11は、継鉄12と後述する継鉄上板29との間に挟まれているものであり、コイル巻線10が巻かれている。上記コイルボビン11は、後述するキャップ28が挿入される貫通孔11aを設けている。   The coil winding 10 generates magnetic flux when energized. The coil bobbin 11 is sandwiched between a yoke 12 and a yoke upper plate 29 described later, and a coil winding 10 is wound around the coil bobbin 11. The coil bobbin 11 is provided with a through hole 11a into which a cap 28 described later is inserted.

継鉄12は、断面コ字状に形成されているものであり、略矩形状に形成されている底部12aと、底部12aの外周部から延設されている筒部12bと、底部12aの内周部から延設されている筒部12cとを一体に備え、貫通孔12dを設け、コイル巻線10を外囲して磁束を通すものであり、後述する固定鉄芯25及び可動鉄芯26並びに継鉄上板29とともに磁気回路をなす。   The yoke 12 is formed in a U-shaped cross section, and includes a bottom portion 12a formed in a substantially rectangular shape, a cylindrical portion 12b extending from the outer peripheral portion of the bottom portion 12a, and an inner portion of the bottom portion 12a. A cylindrical portion 12c extending from the peripheral portion is integrally provided, a through hole 12d is provided, the coil winding 10 is surrounded and a magnetic flux is passed, and a fixed iron core 25 and a movable iron core 26 described later are provided. In addition, a magnetic circuit is formed together with the yoke upper plate 29.

封止接点部2は、カプセルボビン20と、一対の固定端子21,21と、可動接触子22と、シャフト23と、接圧ばね24と、固定鉄芯25と、可動鉄芯26と、復帰ばね27と、キャップ28と、継鉄上板29と、接合部材30とを備えている。   The sealed contact portion 2 includes a capsule bobbin 20, a pair of fixed terminals 21 and 21, a movable contact 22, a shaft 23, a contact pressure spring 24, a fixed iron core 25, a movable iron core 26, and a return. A spring 27, a cap 28, a yoke upper plate 29, and a joining member 30 are provided.

カプセルボビン20は、例えばセラミックなどの耐熱性材料により、一面に開口を有する箱状に形成され、その底部の2箇所に貫通孔20a,20aを設けている。   The capsule bobbin 20 is formed in a box shape having an opening on one surface, for example, by a heat resistant material such as ceramic, and through holes 20a and 20a are provided at two places on the bottom thereof.

各固定端子21は、例えば銅系材料などの導電体により略有底円筒状に形成され、底側の一端部に固定接点21aを設け、他端部に鍔部21bを設けている。上記固定端子21は、一端部が貫通孔20aに挿通され、鍔部21bがカプセルボビン20から突出した状態で、例えばロウ付け等によりカプセルボビン20に固着されて気密接合されている。固定接点21aは、円板状に形成され、例えばロウ付け等により固定端子21に固着されている。なお、固定接点21aは、固定端子21と一体に設けてもよい。   Each fixed terminal 21 is formed in a substantially bottomed cylindrical shape by a conductor such as a copper-based material, for example, and is provided with a fixed contact 21a at one end on the bottom side and a flange 21b at the other end. One end of the fixed terminal 21 is inserted into the through hole 20a, and the flange 21b protrudes from the capsule bobbin 20, and is fixed to the capsule bobbin 20 by, for example, brazing, and is hermetically joined. The fixed contact 21a is formed in a disc shape, and is fixed to the fixed terminal 21 by brazing, for example. Note that the fixed contact 21 a may be provided integrally with the fixed terminal 21.

可動接触子22は、例えば銅系材料などの導電体により平板状に形成され、固定接点21aと接離する間隔を有して可動接点22aを設けている。上記可動接触子22は、可動接点22aを設けている面とは反対面において接圧ばね24に当接している。また、可動接触子22は、中央部に挿通孔22bを設けている。可動接点22aは、円板状に形成され、例えばロウ付け等により可動接触子22に固着され、固定接点21aと電気的開閉を行う。なお、可動接点22aは、可動接触子22と一体に設けてもよい。   The movable contact 22 is formed in a flat plate shape with a conductor such as a copper-based material, for example, and is provided with a movable contact 22a with a distance to and away from the fixed contact 21a. The movable contact 22 is in contact with the contact pressure spring 24 on the surface opposite to the surface on which the movable contact 22a is provided. Moreover, the movable contact 22 is provided with an insertion hole 22b at the center. The movable contact 22a is formed in a disk shape, and is fixed to the movable contact 22 by brazing, for example, and performs electrical switching with the fixed contact 21a. The movable contact 22 a may be provided integrally with the movable contact 22.

シャフト23は、例えば絶縁材料などにより略丸棒状に形成され、一端部23aで可動接触子22の挿通孔22bに挿通されることにより可動接触子22を保持し、他端部23bで可動鉄芯26を保持している。   The shaft 23 is formed, for example, in a substantially round bar shape with an insulating material or the like, and holds the movable contact 22 by being inserted into the insertion hole 22b of the movable contact 22 at one end 23a, and the movable iron core at the other end 23b. 26 is held.

接圧ばね24は、コイル状に形成されて弾性を有し、可動接触子22と継鉄上板29との間に設けられ、固定接点21aと可動接点22aの当接方向(図1では上下方向)へ可動接触子22を付勢するものである。   The contact pressure spring 24 is formed in a coil shape and has elasticity, and is provided between the movable contact 22 and the yoke upper plate 29. The contact direction of the fixed contact 21a and the movable contact 22a (up and down in FIG. 1). The movable contact 22 is biased in the direction).

固定鉄芯25は、一端部25aが細い略円柱状に形成されるとともに、シャフト23を挿通するための挿通孔25bを軸方向(図1では上下方向)に設けている。上記固定鉄芯25は、後述する継鉄上板29の挿通孔29aに一端部25aが挿通されて固着され、他端部には挿通孔25bの内径よりも大きい内径を有している凹部25cを設けている。   The fixed iron core 25 is formed in a substantially cylindrical shape with one end 25a being thin, and an insertion hole 25b for inserting the shaft 23 is provided in the axial direction (vertical direction in FIG. 1). The fixed iron core 25 has one end 25a inserted and fixed in an insertion hole 29a of a yoke upper plate 29 described later, and a recess 25c having an inner diameter larger than the inner diameter of the insertion hole 25b at the other end. Is provided.

可動鉄芯26は、略円柱状に形成され、シャフト23を挿通するための挿通孔26aを軸方向(図1では上下方向)に設け、シャフト23と固定している。上記可動鉄芯26は、その軸方向の一端側に固定鉄芯25との対向面26bを有し、他端側に挿通孔26aの内径よりも大きい内径を有している凹部26cを設けている。上記可動鉄芯26は、凹部26cの底部において復帰ばね27の一端に当接している。また、可動鉄芯26は、外壁面がキャップ28の内周面に摺動する摺動面26dとなっており、上記摺動面26dに可動方向(図1では上下方向)の両端に亙る溝部(図示せず)を1箇所に設けている。なお、上記溝部を複数箇所に設けてもよい。上記のような可動鉄芯26は、磁束を通し、固定鉄芯25との間に発生する吸引力により吸引され、可動接触子22を可動させる。   The movable iron core 26 is formed in a substantially cylindrical shape, and has an insertion hole 26 a for inserting the shaft 23 in the axial direction (vertical direction in FIG. 1), and is fixed to the shaft 23. The movable iron core 26 has a face 26b facing the fixed iron core 25 on one end side in the axial direction, and a recess 26c having an inner diameter larger than the inner diameter of the insertion hole 26a on the other end side. Yes. The movable iron core 26 is in contact with one end of the return spring 27 at the bottom of the recess 26c. Further, the movable iron core 26 has a sliding surface 26d whose outer wall surface slides on the inner peripheral surface of the cap 28, and a groove extending over both ends of the movable direction (vertical direction in FIG. 1) on the sliding surface 26d. (Not shown) is provided in one place. In addition, you may provide the said groove part in multiple places. The movable iron core 26 as described above passes the magnetic flux and is attracted by the attraction force generated between the fixed iron core 25 and the movable contact 22 is moved.

復帰ばね27は、固定鉄芯25の挿通孔25bの内径よりも若干大きい内径を有するコイル状に形成されて弾性を有し、一端部が固定鉄芯25の凹部25cに嵌まり込んで位置規制されている状態でシャフト23に挿通されることにより、固定鉄芯25と可動鉄芯26との間に設けられ、固定接点21aと可動接点22aの開離方向(図1では下方向)へ可動鉄芯26を付勢するものである。   The return spring 27 is formed in a coil shape having an inner diameter slightly larger than the inner diameter of the insertion hole 25b of the fixed iron core 25 and has elasticity, and one end thereof is fitted into the concave portion 25c of the fixed iron core 25 to restrict the position. By being inserted into the shaft 23 in a state in which it is in operation, it is provided between the fixed iron core 25 and the movable iron core 26 and is movable in the direction in which the fixed contact 21a and the movable contact 22a are separated (downward in FIG. 1). The iron core 26 is energized.

キャップ28は、例えば非磁性体などにより有底円筒状に形成され、筒部28aと、底部28bとを一体に備え、継鉄12の貫通孔12dに挿通され、底部28b側から可動鉄芯26及び復帰ばね27を収納するとともに、固定鉄芯25を開口部側に収納する。   The cap 28 is formed in a cylindrical shape with a bottom using, for example, a non-magnetic material, and integrally includes a cylindrical portion 28a and a bottom portion 28b. The cap 28 is inserted into the through hole 12d of the yoke 12, and the movable iron core 26 is inserted from the bottom portion 28b side. The return spring 27 is housed, and the fixed iron core 25 is housed on the opening side.

継鉄上板29は、例えば鉄などの金属磁性材料により略矩形状に形成され、固定鉄芯25及び可動鉄芯26とともに磁気回路を形成し磁束を通す。上記継鉄上板29は、固定鉄芯25の一端部25aが挿通される挿通孔29aを中央に設け、挿通孔29a付近がキャップ28により気密接合されている。また、継鉄上板29は、例えばかしめ等により継鉄12と固着されている。   The yoke upper plate 29 is formed in a substantially rectangular shape by a metal magnetic material such as iron, for example, and forms a magnetic circuit together with the fixed iron core 25 and the movable iron core 26 to pass the magnetic flux. The yoke upper plate 29 is provided with an insertion hole 29a through which the one end 25a of the fixed iron core 25 is inserted, and the vicinity of the insertion hole 29a is hermetically joined by a cap 28. Further, the yoke upper plate 29 is fixed to the yoke 12 by caulking, for example.

接合部材30は、例えば金属材料により開口部30aを有する筒状に形成され、カプセルボビン20に気密接合される第1の接合部30bを一端側(図1では上側)に設け、例えばロウ付け等により継鉄上板29に固着されて気密接合される第2の接合部30cを他端側(図1では下側)に設けている。また、接合部材30は、筒部途中に屈曲部30dを周回して設け、第1の接合部30bから第2の接合部30cにかけて、開口部30aの開口断面が一端側よりも他端側のほうが大きく形成されている。さらに、上記接合部材30は、カプセルボビン20及び継鉄上板29に気密接合されることにより、固定接点21a及び可動接点22aを収容するための気密空間31を形成している。気密空間31には、水素を主体とするガスが例えば2気圧程度でもって気密封止されている。   The joining member 30 is formed in a cylindrical shape having an opening 30a by, for example, a metal material, and a first joining portion 30b to be hermetically joined to the capsule bobbin 20 is provided on one end side (upper side in FIG. 1), for example, brazing Thus, a second joint portion 30c fixed to the yoke upper plate 29 and hermetically joined is provided on the other end side (lower side in FIG. 1). Further, the joining member 30 is provided around the bent portion 30d in the middle of the cylindrical portion, and the opening cross section of the opening 30a is located on the other end side from the one end side from the first joining portion 30b to the second joining portion 30c. Is formed larger. Further, the joining member 30 is hermetically joined to the capsule bobbin 20 and the yoke upper plate 29, thereby forming an airtight space 31 for accommodating the fixed contact 21a and the movable contact 22a. A gas mainly composed of hydrogen is hermetically sealed in the hermetic space 31 at, for example, about 2 atm.

導電バー4は、例えば銅合金(Cu−Fe系、Cu−Sn系、Cu−Cr系等)などの導電体である銅系材料により略板状に形成され、嵌合孔40を一端側に設け、ねじ孔41を他端側に設けている。上記導電バー4は、嵌合孔40において固定端子21と嵌合固定して電気的に接続し、ねじ孔41において外部電路(図示せず)と電気的に接続している。また、導電バー4は、両端間の中央部43と両端周辺との組成を変えることにより、中央部43の剛性が両端周辺の剛性より低くなるように作成されている。上記より、導電バー4を介して、固定端子21と外部電路とは電気的に接続するとともに、外部電路において固定端子21からの振動伝播が低減される。   The conductive bar 4 is formed in a substantially plate shape by a copper-based material that is a conductor such as a copper alloy (Cu-Fe-based, Cu-Sn-based, Cu-Cr-based, etc.), and the fitting hole 40 is formed on one end side. The screw hole 41 is provided on the other end side. The conductive bar 4 is fitted and fixed to the fixed terminal 21 in the fitting hole 40 and is electrically connected, and the screw hole 41 is electrically connected to an external electric circuit (not shown). In addition, the conductive bar 4 is formed so that the rigidity of the central portion 43 is lower than the rigidity of the periphery of both ends by changing the composition of the central portion 43 between both ends and the periphery of both ends. As described above, the fixed terminal 21 and the external electric circuit are electrically connected via the conductive bar 4, and vibration propagation from the fixed terminal 21 is reduced in the external electric circuit.

次に、実施形態1の封止接点装置の動作について説明する。コイル巻線10の励磁前は可動接点22aが固定接点21aと接点ギャップL1を有して対向している。コイル巻線10を励磁すると、可動鉄芯26が固定鉄芯25に吸引されて可動することにより、上記可動鉄芯26に固定されているシャフト23が駆動されて、可動接点22aは、接点ギャップL1を徐々に小さくしていき固定接点21aに当接する。その後、ばね負荷は、接圧ばね24のばね負荷分だけ急に大きくなり、さらにシャフト23が駆動されると、可動鉄芯26はオーバートラベル量だけ可動し、ばね負荷がさらに大きくなる。上記接点ギャップL1及びオーバートラベル量の合計は、可動鉄芯26のストロークとなっている。   Next, the operation of the sealed contact device of Embodiment 1 will be described. Before the coil winding 10 is excited, the movable contact 22a faces the fixed contact 21a with a contact gap L1. When the coil winding 10 is excited, the movable iron core 26 is attracted to and moved by the fixed iron core 25, so that the shaft 23 fixed to the movable iron core 26 is driven, and the movable contact 22a has a contact gap. L1 is gradually decreased and comes into contact with the fixed contact 21a. Thereafter, the spring load suddenly increases by the amount corresponding to the spring load of the contact pressure spring 24. When the shaft 23 is further driven, the movable iron core 26 moves by the amount of overtravel, and the spring load further increases. The sum of the contact gap L1 and the amount of overtravel is the stroke of the movable iron core 26.

一方、コイル巻線10の励磁が切られると、可動接触子22は、主として復帰ばね27の付勢力でもって復帰して逆に変位し、可動接点22aが固定接点21aから開離するとともに、可動鉄芯26も復帰して元の状態に戻る。   On the other hand, when the coil winding 10 is de-energized, the movable contact 22 is restored by the urging force of the return spring 27 and displaced in reverse, so that the movable contact 22a is separated from the fixed contact 21a and is movable. The iron core 26 also returns and returns to its original state.

上記可動接点22aが固定接点21aに当接するとき、又は固定鉄芯25と可動鉄芯26が当接するときに、導電バー4は、固定端子21からの振動が外部電路(図示せず)に伝播することを低減している。   When the movable contact 22a contacts the fixed contact 21a, or when the fixed iron core 25 and the movable iron core 26 contact, the conductive bar 4 propagates vibration from the fixed terminal 21 to an external electric circuit (not shown). To reduce that.

以上、実施形態1によれば、固定端子21の振動を外部電路(図示せず)に伝播することを低減することができるので、外部電路や外部電路を取り付けている部材(図示せず)から発生する動作音を低減することができる。   As described above, according to the first embodiment, it is possible to reduce the propagation of the vibration of the fixed terminal 21 to the external electric circuit (not shown). Therefore, from the external electric circuit or a member (not shown) attached to the external electric circuit. The generated operating sound can be reduced.

(実施形態2)
実施形態2について説明する。実施形態2の封止接点装置は、実施形態1の封止接点装置と同様に、駆動部1(図1参照)と、封止接点部2(図1参照)とを備えているが、実施形態1の封止接点装置にはない以下に記載の特徴部分がある。
(Embodiment 2)
Embodiment 2 will be described. Similar to the sealed contact device of the first embodiment, the sealed contact device of the second embodiment includes the driving unit 1 (see FIG. 1) and the sealed contact unit 2 (see FIG. 1). The sealed contact device of aspect 1 has the following characteristic portions that are not present.

実施形態2の導電バー(図2の4a参照)は、複数の薄板(図2の42参照)を厚み方向(図2の上下方向)に重ねた構成である。各薄板42は、例えば銅合金(Cu−Fe系、Cu−Sn系、Cu−Cr系等)などの導電体である銅系材料により略板状に形成され、嵌合孔(図2の40参照)を一端側に設け、ねじ孔(図2の41参照)を他端側に設けている。上記導電バーの剛性は、薄板の長さの3乗に反比例し、薄板の厚みの3乗に比例し、薄板の幅に比例し、薄板の枚数に反比例する。なお、実施形態2の導電バーは、上記以外の点において、実施形態1の導電バー4(図1参照)と同様である。   The conductive bar of Embodiment 2 (see 4a in FIG. 2) has a configuration in which a plurality of thin plates (see 42 in FIG. 2) are stacked in the thickness direction (vertical direction in FIG. 2). Each thin plate 42 is formed in a substantially plate shape with a copper-based material which is a conductor such as a copper alloy (Cu-Fe-based, Cu-Sn-based, Cu-Cr-based, etc.), for example, and a fitting hole (40 in FIG. 2). 2) is provided on one end side, and a screw hole (see 41 in FIG. 2) is provided on the other end side. The rigidity of the conductive bar is inversely proportional to the cube of the length of the thin plate, proportional to the cube of the thickness of the thin plate, proportional to the width of the thin plate, and inversely proportional to the number of thin plates. The conductive bar of the second embodiment is the same as the conductive bar 4 of the first embodiment (see FIG. 1) except for the points described above.

以上、実施形態2によれば、実施形態1と同様の効果を得ることができるとともに、各薄板(図2の42参照)の厚みが薄いので、剛性をさらに低くすることができる。   As described above, according to the second embodiment, the same effects as those of the first embodiment can be obtained, and the thickness of each thin plate (see 42 in FIG. 2) is thin, so that the rigidity can be further reduced.

(実施形態3)
実施形態3について図2を用いて説明する。図2は、実施形態3の導電バー4aの断面図である。実施形態3の封止接点装置は、実施形態2の封止接点装置と同様に、駆動部1(図1参照)と、封止接点部2(図1参照)とを備えているが、実施形態2の封止接点装置にはない以下に記載の特徴部分がある。
(Embodiment 3)
A third embodiment will be described with reference to FIG. FIG. 2 is a cross-sectional view of the conductive bar 4a of the third embodiment. The sealed contact device according to the third embodiment includes the drive unit 1 (see FIG. 1) and the sealed contact unit 2 (see FIG. 1) as in the sealed contact device according to the second embodiment. There are the following characteristic portions that are not included in the sealed contact device of aspect 2.

実施形態3の導電バー4aは、図2に示すように、複数の薄板42・・・を厚み方向(図2では上下方向)に重ね、両端を溶接して固定しているものである。なお、実施形態3の導電バー4aは、上記以外の点において、実施形態2の導電バーと同様である。   As shown in FIG. 2, the conductive bar 4a of the third embodiment is formed by stacking a plurality of thin plates 42 in the thickness direction (vertical direction in FIG. 2) and welding and fixing both ends. The conductive bar 4a of the third embodiment is the same as the conductive bar of the second embodiment except for the points described above.

以上、実施形態3によれば、実施形態2と同様の効果を得ることができるとともに、導電バー4aの両端の剛性を高くすることができるので、固定端子21(図1参照)及び外部電路(図示せず)と安定に接続することができる。   As described above, according to the third embodiment, the same effect as that of the second embodiment can be obtained, and the rigidity of both ends of the conductive bar 4a can be increased. Therefore, the fixed terminal 21 (see FIG. 1) and the external electric circuit ( (Not shown) and can be stably connected.

(実施形態4)
実施形態4について図3を用いて説明する。図3は、実施形態4の導電バー4bの断面図である。実施形態4の封止接点装置は、実施形態3の封止接点装置と同様に、駆動部1(図1参照)と、封止接点部2(図1参照)とを備えているが、実施形態3の封止接点装置にはない以下に記載の特徴部分がある。
(Embodiment 4)
A fourth embodiment will be described with reference to FIG. FIG. 3 is a cross-sectional view of the conductive bar 4b of the fourth embodiment. The sealed contact device according to the fourth embodiment includes the drive unit 1 (see FIG. 1) and the sealed contact unit 2 (see FIG. 1) as in the sealed contact device according to the third embodiment. The sealed contact device of aspect 3 has the following characteristic parts.

実施形態4の導電バー4bの複数の薄板42aにおいて、各薄膜42aの両端間の長さが順に長くなっている。なお、実施形態4の導電バー4bは、上記以外の点において、実施形態3の導電バー4a(図2参照)と同様である。   In the plurality of thin plates 42a of the conductive bar 4b of Embodiment 4, the length between both ends of each thin film 42a is increased in order. The conductive bar 4b of the fourth embodiment is the same as the conductive bar 4a of the third embodiment (see FIG. 2) except for the points described above.

以上、実施形態4によれば、実施形態3と同様の効果を得ることができるとともに、各薄膜42aの両端間の長さが順に長くなっているので、導電バー4bを曲げ構造にすることができる。また、固定端子21(図1参照)の振動を吸収することができるので、動作音を低減することができる。   As described above, according to the fourth embodiment, the same effects as those of the third embodiment can be obtained, and the length between both ends of each thin film 42a is increased in order, so that the conductive bar 4b has a bent structure. it can. In addition, since the vibration of the fixed terminal 21 (see FIG. 1) can be absorbed, the operation sound can be reduced.

なお、実施形態1〜4では封止接点装置を例に出して説明しているが、本発明を実施するにあたって、必ずしも接点が封止されている必要はなく、実施形態1〜4の変形例として、接点が封止されていない装置であってもよい。このような装置であっても、本発明の実施には何ら問題がなく、実施形態1〜4と同様の効果を得ることができる。   In the first to fourth embodiments, the sealed contact device has been described as an example. However, in carrying out the present invention, the contact does not necessarily have to be sealed, and a modification of the first to fourth embodiments. As an example, a device in which the contacts are not sealed may be used. Even with such an apparatus, there is no problem in the implementation of the present invention, and the same effects as in the first to fourth embodiments can be obtained.

本発明による実施形態1の封止接点装置の断面図である。It is sectional drawing of the sealing contact apparatus of Embodiment 1 by this invention. 本発明による実施形態3の導電バーの断面図である。It is sectional drawing of the electrically conductive bar of Embodiment 3 by this invention. 本発明による実施形態4の導電バーの断面図である。It is sectional drawing of the electroconductive bar of Embodiment 4 by this invention. 従来の封止接点装置の断面図である。It is sectional drawing of the conventional sealing contact apparatus.

符号の説明Explanation of symbols

10 コイル巻線
21 固定端子
21a 固定接点
22a 可動接点
25 固定鉄芯
26 可動鉄芯
4 導電バー
40 嵌合孔
41 ねじ孔
43 中央部
DESCRIPTION OF SYMBOLS 10 Coil winding 21 Fixed terminal 21a Fixed contact 22a Movable contact 25 Fixed iron core 26 Movable iron core 4 Conductive bar 40 Fitting hole 41 Screw hole 43 Center part

Claims (5)

固定接点を設ける固定端子と、可動接点を設け前記可動接点が前記固定接点に接離するよう可動する可動接触手段と、前記可動接触手段を駆動して可動させる駆動手段とを備えるリレーに取り付けられるリレー用導電バーであって、
低い剛性を有する導電体から形成され、一端を前記固定端子と固定して電気的に接続し、他端を外部電路と電気的に接続する
ことを特徴とするリレー用導電バー。
A fixed terminal provided with a fixed contact, a movable contact means provided with a movable contact and movable so that the movable contact contacts and separates from the fixed contact, and a drive means for driving and moving the movable contact means to be attached to a relay. A conductive bar for a relay,
A conductive bar for relay, which is formed of a conductor having low rigidity, has one end fixed and electrically connected to the fixed terminal, and the other end electrically connected to an external circuit.
複数の薄板を厚み方向に重ねた構成であることを特徴とする請求項1記載のリレー用導電バー。   The relay conductive bar according to claim 1, wherein a plurality of thin plates are stacked in the thickness direction. 前記複数の薄板の両端を溶接して固定することを特徴とする請求項2記載のリレー用導電バー。   The conductive bar for relay according to claim 2, wherein both ends of the plurality of thin plates are fixed by welding. 前記複数の薄板において、各薄板の両端間の長さが順に長いことを特徴とする請求項2又は3記載のリレー用導電バー。   The relay conductive bar according to claim 2 or 3, wherein in the plurality of thin plates, the length between both ends of each thin plate is long in order. 固定接点を設ける固定端子と、可動接点を設け前記可動接点が前記固定接点に接離するよう可動する可動接触手段と、前記可動接触手段を駆動して可動させる駆動手段とを備えるリレーに取り付けられるリレー用導電バーの製造方法であって、
複数の薄板を厚み方向に重ね、
前記複数の薄板の両端を溶接して固定する
ことを特徴とするリレー用導電バーの製造方法。
A fixed terminal provided with a fixed contact, a movable contact means provided with a movable contact and movable so that the movable contact contacts and separates from the fixed contact, and a drive means for driving and moving the movable contact means to be attached to a relay. A method for manufacturing a conductive bar for a relay,
A plurality of thin plates are stacked in the thickness direction,
A method of manufacturing a conductive bar for relay, wherein both ends of the plurality of thin plates are fixed by welding.
JP2005255400A 2005-03-28 2005-09-02 Conductive bar for relay and its manufacturing method Withdrawn JP2006310251A (en)

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JP2005093150 2005-03-28
JP2005255400A JP2006310251A (en) 2005-03-28 2005-09-02 Conductive bar for relay and its manufacturing method

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Publication Number Publication Date
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Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102918620A (en) * 2010-06-17 2013-02-06 日产自动车株式会社 Electromagnetic relay
US9378914B2 (en) 2011-10-07 2016-06-28 Fuji Electric Co., Ltd. Contact device and electromagnetic contactor using the same
US10056200B2 (en) 2011-10-07 2018-08-21 Fuji Electric Fa Components & Systems Co., Ltd. Electromagnetic contactor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102918620A (en) * 2010-06-17 2013-02-06 日产自动车株式会社 Electromagnetic relay
US9378914B2 (en) 2011-10-07 2016-06-28 Fuji Electric Co., Ltd. Contact device and electromagnetic contactor using the same
US10056200B2 (en) 2011-10-07 2018-08-21 Fuji Electric Fa Components & Systems Co., Ltd. Electromagnetic contactor

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