JP3603455B2 - High frequency relay - Google Patents

High frequency relay Download PDF

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Publication number
JP3603455B2
JP3603455B2 JP05963496A JP5963496A JP3603455B2 JP 3603455 B2 JP3603455 B2 JP 3603455B2 JP 05963496 A JP05963496 A JP 05963496A JP 5963496 A JP5963496 A JP 5963496A JP 3603455 B2 JP3603455 B2 JP 3603455B2
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JP
Japan
Prior art keywords
armature
movable contact
block
contact piece
base
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Expired - Fee Related
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JP05963496A
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Japanese (ja)
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JPH09259725A (en
Inventor
陽一 仲西
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Omron Corp
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Omron Corp
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00Electromagnetic relays
    • H01H51/22Polarised relays
    • H01H51/2272Polarised relays comprising rockable armature, rocking movement around central axis parallel to the main plane of the armature
    • H01H51/2281Contacts rigidly combined with armature
    • H01H51/229Blade-spring contacts alongside armature

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  • Electromagnets (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は高周波リレー、特に、シールド構造に関する。
【0002】
【従来の技術と発明が解決しようとする課題】
従来、高周波リレーのシールド構造としては、例えば、特開平2−197041号公報に記載のものがある。
すなわち、図6に示すように、箱型ベース1に、コイルブロック2、永久磁石3、接極子ブロック4、シールドブロック5および図示しないケースを組み込んだものである。前記接極子ブロック4は、図7に示すように、接極子6の両側に配した略U字形状の可動接触ばね片7,8を支持体9で一体成形するとともに、この支持体9の側面に回動軸9aを突設したものである。
【0003】
そして、前記箱型ベース1に組み込んだコイルブロック2の励磁,消磁に基づき、接極子ブロック4が回動軸9aの軸心を中心に回動し、可動接触ばね片7,8の先端部が箱型ベース1に設けた固定接点1a,1bに交互に接触する一方、可動接触ばね片7,8の先端部がシールドブロック5のアース接点5a,5bに交互に接触する。
しかしながら、前述の高周波リレーでは、別体のシールドブロック5を必要とするので、部品点数,組立工数が多く、生産性が低い。
【0004】
このため、ベース1に嵌合するケース(図示せず)の内側にシールドブロック5をあらかじめ組み込んでおき、組立ラインにおける部品点数,組立工数を減少し、生産性を高めた高周波リレー(実開平2−99540公報)が提案されている。
しかし、このものでは、ベース1にケースを組み付けないと、動作特性を確認できず、組立作業性が悪いという問題点がある。
【0005】
本発明は、前記問題点に鑑み、部品点数,組立工数が少なく、組立作業性の良い高周波リレーの提供を目的とする。
【0006】
【課題を解決するための手段】
本発明にかかる高周波リレーは、前記目的を達成するため、接極子の略中央部に設けた支持体を介して可動接触片を一体化した接極子ブロックが、ベースに設けた電磁石ブロックの励磁,消磁に基づいて回動し、接点を開閉する高周波リレーにおいて、前記接極子ブロックが、接極子と、この接極子の略中央部に直交するように配して接続され、かつ、両端部を前記ベースに設けたグランド端子に接続して回動支点となるグランド中継端子と、少なくとも接極子の片側を間にして並設した一対の可動部の一端部に、前記接極子の上面を跨ぐように配した平面略コ字形のシールド用連結部の一端部をそれぞれ連結するとともに、その一端部を前記支持体で支持して前記接極子に一体化した可動接触片とからなり、可動接触片の接点開離時に前記シールド用連結部が前記接極子の上面に接触する一方、可動接触片の接点閉成時にシールド用連結部が前記ベースに突設した当接突部に当接し、前記接極子の上面から開離する構成としたものである。
また、前記可動接触片のシールド用連結部は、前記支持体近傍に配しておいてもよい。
【0007】
【発明の実施の形態】
次に、本発明にかかる実施形態を図1ないし図5の添付図面に従って説明する。
本実施形態にかかる電磁継電器は、図1に示すように、電磁石ブロック10に2次成形を施して形成したベースブロック20と、永久磁石30と、接極子ブロック40と、ケース50とからなるものである。
【0008】
電磁石ブロック10は、図5に示すように、略コ字形状の鉄芯11をインサート成形したスプール12の胴部16にコイル18(図3)を巻回したものである。
【0009】
前記スプール12は、その胴部16の両端に形成した鍔部13,14の上端面から前記鉄芯11の磁極部11a,11bがそれぞれ露出している。そして、前記鍔部13,14には一組の中継端子15,15がそれぞれインサート成形され、そのからげ部15aが前記鍔部13,14の両側端面からそれぞれ突出している。さらに、前記スプール12は、その胴部16に形成された中央鍔部17に、後述する永久磁石30を挿入するための挿入孔17aを形成してある。ただし、前記中央鍔部17は、磁気バランスを崩すため、胴部16の中心から鍔部13側に偏心した位置に設けられている。
なお、前記胴部16に巻回したコイル18の引き出し線は前記中継端子15,15のからげ部15aにからげられ、ハンダ付けされている。
【0010】
ベースブロック20は、前記電磁石ブロック10と、図示しないリードフレームとに2次成形を施して一体化した後、リードフレームから電磁石ブロック10を切り離して形成したものである。
すなわち、前記リードフレームは、帯状のフープ材からコイル端子21,22、グランド端子23、および、固定接点24a,25aを固着一体化した固定接点端子24,25を切り出して屈曲したものである。そして、上向きにした前記リードフレームの裏面のうち、前記コイル端子21,22の先端部に電磁石ブロック10の中継端子15を載置して溶着した後、2次成形する。さらに、前述の各端子をリードフレームから切り離して屈曲することにより、図1に示すように、スプール10の挿入孔17a、グランド端子23の接続受け部23a、固定接点24a,25aが露出するベースブロック20が得られる。また、このベースブロック20の上面には、前記磁極部11a,11bの両側から当接突部26,27がそれぞれ突出している。
なお、ダミー端子であるコイル端子22は、その中間部から切断され、他の端子よりも短くなっている。
【0011】
永久磁石30は、希土類を焼結して形成された略直方体形状を有するものであり、電磁石ブロック10の挿入孔17aに上方から挿入され、その下端面を鉄芯11の上面に当接するように組み付けた後、着磁される。
【0012】
接極子ブロック40は、接極子41の略中央部にアウトサート成形した支持体42を介してグランド中継端子43および可動接触片44,45を一体化したものである。
【0013】
前記接極子41は磁性材からなる平面長方形の板材であり、その下面中央部に支持突部41cを突き出し加工で形成してある(図3)。
【0014】
グランド中継端子43は、導電性の薄板ばね材からなり、その両側端部に略T字形状の接続部43aを延在する一方、その中央部を前記接極子41の上面に沿うように屈曲してある(図4)。
そして、前記グランド中継端子43を、前記接極子41の上面中央部に位置決めし、その中央部を接極子41にレーザ溶接,抵抗溶接等で仮止めした後、この接極子41に支持体42を一体成形することにより、グランド中継端子43が一体化される。
【0015】
前記可動接触片45は、図2(a)に示すように、前記接極子41の両側に並設した可動部45a,45aの一端部と、略コ字形のシールド用連結部45bの一端部とを連結したものであり、その一端部を支持体42にインサート成形することにより、前記接極子41と一体となっている。そして、前記可動部45aの自由端部の下面には可動接点45cが設けられている。さらに、シールド用連結部45bは、その中央部を前記接極子41の上面に沿う形状に屈曲してある。
なお、可動接触片44は、前述の可動接触片45と同一形状を有するものであり、可動接点44cを有する可動部44aと、シールド用連結部44bとで形成されている(図1)。そして、可動接触片45と同様、支持体42を介して接極子41に一体化されている。
【0016】
そして、永久磁石30の上端面に接極子41の支持突部41cを載置した後、ベースブロック20にインサート成形したグランド端子23の接続受け部23aに、接極子ブロック40の接続部43aを溶着一体化することにより、可動接点44c,45cが固定接点24a,25aに交互に接離可能に対向する。
【0017】
ケース50は、前記ベースブロック20に嵌合可能な箱形状を有するものであり、天井面隅部にガス抜き孔51を有している。さらに、前記ケース50は、その側壁52の下端縁部に各端子に嵌合する切り欠き部52a,52b,52c,52d,52eを形成してある。
したがって、永久磁石30および接極子ブロック40を組み込んだ前記ベースブロック20にケース50を嵌合すると、各端子21〜25が側壁52の切り欠き部52a〜52eにそれぞれ嵌合する。そして、ベースブロック20の底面にシール材(図示せず)を注入,固化した後、ガス抜き孔51から内部ガスを吸引し、加熱溶融して密封する。ついで、前記端子21,23,24,25の先端部を内方に折り曲げて表面実装型の電磁継電器とすることにより、組み立て作業が完了する。
【0018】
なお、図2(a)において、本実施形態にかかる電磁継電器の平面部分断面図が図示されているが、必ずしもこれに限らず、例えば、図2(b)に示すように、シールド用連結部45bが支持体42の近傍に位置するものであってもよい。この実施形態によれば、接点閉成時に伝送経路が短くなり、挿入損失が少なくなるという利点がある。
また、前述の実施形態では、端子の先端部を内方に折り曲げて表面実装型の電磁継電器に適用した場合について説明したが、必ずしもこれに限らず、その先端部を外方に折り曲げた表面実装型の電磁継電器に適用してもよく、あるいは、端子の先端部を折り曲げず、そのままプリント基板のスルーホールに挿入して取り付ける電磁継電器に適用してもよい。
【0019】
次に、前述のように組み立てられた自己復帰型の電磁継電器の動作について説明する。
まず、コイル18に電圧が印加されず、電磁石ブロック10が励磁されていない場合、永久磁石30が中心から磁極部11a側に偏心した位置にあるので、磁気バランスが崩れている。このため、接極子41の一端部41aが鉄芯11の磁極部11aに吸着し、可動接触片44の可動接点44cが固定接点24aに接触するとともに、シールド用連結部44bがベースブロック20の当接突部26に突設して接極子41の上面から開離している。一方、接極子41の他端部41bは鉄芯11の磁極部11bから開離し、可動接触片45の可動接点45cが固定接点25aから開離しているとともに、シールド用連結部45bが接極子41の上面に接触してアースしている。
【0020】
そして、前記永久磁石30の磁束を打ち消す磁束が生じるように前記コイル18に電圧を印加すると、鉄芯11の磁極部11aに接極子41の一端部41aが反発するとともに、その磁極部11bが接極子41の他端部41bを吸引する。このため、永久磁石30の磁力に抗し、接極子41が回動し、可動接点44cが固定接点24aから開離した後、シールド用連結部44bが接極子41の上面に接触してアースしている。これにつれ、シールド用連結部45bがベースブロック20の当接突部27に当接して接極子41の上面から開離した後、可動接点45cが固定接点25aに接触し、ついで、接極子41の他端部41bが鉄芯11の磁極部11bに吸着する。
【0021】
ついで、前記励磁を解くと、磁気バランスが崩れているので、永久磁石30の磁力により、前述と逆方向に接極子ブロック40が回動し、可動接点45cが固定接点25aから開離した後、シールド用連結部45bが接極子41の上面に接触してアースする。これにつれ、シールド用連結部44bがベースブロック20の当接突部26に当接し、シールド用連結部44bが接極子41の上面から開離した後、可動接点44cが固定接点24aに接触し、ついで、接極子41の他端部41aが鉄芯11の磁極部11aに吸着し、元の状態に復帰する。
【0022】
前述の実施形態では、自己復帰型の電磁継電器に適用した場合について説明したが、必ずしもこれに限らず、自己保持型の電磁継電器に適用してもよいことは勿論である。
【0023】
【発明の効果】
以上の説明から明らかなように、本発明にかかる高周波リレーによれば、接極子ブロックが従来例のシールドブロックとしての機能を有するので、部品点数,組立工数が減少し、生産性が向上する。特に、本願発明にかかる可動接触片およびシールド用連結部は従来例のシールドブロックの形状よりも簡単であり、部品精度,組立精度が高いので、接触信頼性が向上する。
また、可動ブロックを組み込んだ段階で動作特性を検査できるので、従来例のようにケース,シールドケースを組み付ける必要がなく、便利であり、生産性がより一層向上する。
さらに、接極子の長手方向の両側に可動接触片を配した場合には、接極子の中央に配したグランド中継端子によって前記可動接触片が仕切られ、シールドされるので、優れた高周波特性が得られる。
特に、ベースの両側中央に共通端子を配した一般のリレーに適用すれば、前記共通端子をグランド端子に転用できるので、部品の共通化を図れるだけでなく、従来例のような特殊な端子配列とならず、設計変更が不要であり、使い勝手が良い。
そして、請求項2によれば、接点閉成時に伝送経路が短くなるので、挿入損失が少なくなるという効果がある。
【図面の簡単な説明】
【図1】本発明にかかる高周波リレーの分解斜視図である。
【図2】図1に示した高周波リレーを示し、図(a)は平面部分断面図、図(b)は変形例の平面部分断面図である。
【図3】図1に示した高周波リレーの正面部分断面図である。
【図4】図1に示した高周波リレーの側面断面図である。
【図5】図1に示した高周波リレーの電磁石ブロックを示す斜視図である。
【図6】従来例にかかる高周波リレーの分解斜視図である。
【図7】図6に示した電磁継電器の接極子ブロックの平面図である。
【符号の説明】
10…電磁石ブロック、20…ベースブロック、23…グランド端子、23a…接続受け部、24a,25a…固定接点、26,27…当接突部、30…永久磁石、40…接極子ブロック、41…接極子、42…支持体、43…グランド中継端子、43a…接続部、44,45…可動接触片、44a,45a…可動部、44b,45b…シールド用連結部、44c,45c…可動接点。
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a high-frequency relay, particularly to a shield structure.
[0002]
[Prior Art and Problems to be Solved by the Invention]
2. Description of the Related Art Conventionally, as a shield structure of a high-frequency relay, for example, there is a shield structure described in Japanese Patent Application Laid-Open No. 2-197041.
That is, as shown in FIG. 6, a coil base 2, a permanent magnet 3, an armature block 4, a shield block 5, and a case (not shown) are incorporated in a box-shaped base 1. As shown in FIG. 7, the armature block 4 is formed by integrally forming a substantially U-shaped movable contact spring piece 7, 8 disposed on both sides of the armature 6 with a support 9, and a side surface of the support 9. And a rotating shaft 9a protruding therefrom.
[0003]
Then, based on the excitation and demagnetization of the coil block 2 incorporated in the box-shaped base 1, the armature block 4 rotates about the axis of the rotating shaft 9a, and the distal ends of the movable contact spring pieces 7, 8 are moved. While alternately contacting the fixed contacts 1a and 1b provided on the box-shaped base 1, the tips of the movable contact spring pieces 7 and 8 alternately contact the ground contacts 5a and 5b of the shield block 5.
However, since the above-described high-frequency relay requires a separate shield block 5, the number of parts and the number of assembly steps are large, and the productivity is low.
[0004]
For this reason, the shield block 5 is previously incorporated inside a case (not shown) fitted to the base 1 to reduce the number of parts and the number of assembling steps in the assembly line, and to increase the productivity of the high-frequency relay (actually-open flat type 2). -99540).
However, in this case, unless the case is assembled to the base 1, the operation characteristics cannot be confirmed, and there is a problem that the assembling workability is poor.
[0005]
SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a high-frequency relay having a small number of parts and a small number of assembling steps and good assembling workability.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the high-frequency relay according to the present invention is configured such that an armature block in which a movable contact piece is integrated via a support provided at a substantially central portion of the armature excites an electromagnet block provided on a base. In a high-frequency relay that rotates based on demagnetization and opens and closes a contact, the armature block is arranged and connected to an armature so as to be orthogonal to a substantially central portion of the armature, and has both ends. A ground relay terminal which is connected to a ground terminal provided on the base and serves as a rotation fulcrum, and at least one end of a pair of movable parts arranged side by side with at least one side of the armature so as to straddle the upper surface of the armature. A movable contact piece integrated with the armature by connecting one end of each of the planar substantially U-shaped shield connecting portions arranged and supporting one end of the shield connecting portion with the support, and the contact of the movable contact piece. At the time of separation The shield connecting portion abuts on the contact protrusion protruding from the base when the contact of the movable contact piece is closed, and is separated from the upper surface of the armature while the shield connecting portion contacts the upper surface of the armature. The configuration is such that:
The shield connecting portion of the movable contact piece may be arranged near the support.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment according to the present invention will be described with reference to the accompanying drawings of FIGS.
As shown in FIG. 1, the electromagnetic relay according to the present embodiment includes a base block 20, a permanent magnet 30, an armature block 40, and a case 50 formed by subjecting an electromagnet block 10 to secondary molding. It is.
[0008]
As shown in FIG. 5, the electromagnet block 10 is formed by winding a coil 18 (FIG. 3) around a body 16 of a spool 12 in which a substantially U-shaped iron core 11 is insert-molded.
[0009]
The magnetic pole portions 11a and 11b of the iron core 11 are exposed from upper end surfaces of flange portions 13 and 14 formed at both ends of the body portion 16 of the spool 12, respectively. A pair of relay terminals 15 and 15 are insert-molded on the flanges 13 and 14, respectively, and the barbs 15a protrude from both end surfaces of the flanges 13 and 14, respectively. Further, the spool 12 has an insertion hole 17a for inserting a permanent magnet 30, which will be described later, in a central flange 17 formed on the body 16 thereof. However, the center flange portion 17 is provided at a position eccentric from the center of the body portion 16 toward the flange portion 13 in order to break the magnetic balance.
The lead wire of the coil 18 wound around the body 16 is wrapped around the wrapping portion 15a of the relay terminals 15 and 15 and is soldered.
[0010]
The base block 20 is formed by subjecting the electromagnet block 10 and a lead frame (not shown) to secondary molding and integrating them, and then separating the electromagnet block 10 from the lead frame.
That is, the lead frame is formed by cutting and bending the coil terminals 21 and 22, the ground terminal 23, and the fixed contact terminals 24 and 25 in which the fixed contacts 24 a and 25 a are fixedly integrated with each other from a band-shaped hoop material. Then, the relay terminal 15 of the electromagnet block 10 is placed and welded to the leading ends of the coil terminals 21 and 22 on the rear surface of the lead frame facing upward, and then subjected to secondary molding. Further, by bending each of the above-mentioned terminals separately from the lead frame, as shown in FIG. 1, the base block in which the insertion hole 17a of the spool 10, the connection receiving portion 23a of the ground terminal 23, and the fixed contacts 24a and 25a are exposed. 20 is obtained. On the upper surface of the base block 20, contact protrusions 26 and 27 project from both sides of the magnetic pole portions 11a and 11b, respectively.
In addition, the coil terminal 22 which is a dummy terminal is cut from an intermediate portion thereof, and is shorter than other terminals.
[0011]
The permanent magnet 30 has a substantially rectangular parallelepiped shape formed by sintering a rare earth element. The permanent magnet 30 is inserted into the insertion hole 17 a of the electromagnet block 10 from above, and its lower end surface contacts the upper surface of the iron core 11. After assembly, it is magnetized.
[0012]
The armature block 40 is formed by integrating a ground relay terminal 43 and movable contact pieces 44 and 45 via a support 42 outsert molded at a substantially central portion of the armature 41.
[0013]
The armature 41 is a flat rectangular plate made of a magnetic material, and a support projection 41c is formed at the center of the lower surface thereof by projection processing (FIG. 3).
[0014]
The ground relay terminal 43 is made of a conductive thin plate spring material, and extends a substantially T-shaped connection portion 43a at both side ends thereof, and bends a central portion thereof along the upper surface of the armature 41. (Fig. 4).
Then, the ground relay terminal 43 is positioned at the center of the upper surface of the armature 41, and the center is temporarily fixed to the armature 41 by laser welding, resistance welding, or the like, and then the support 42 is attached to the armature 41. By integrally molding, the ground relay terminal 43 is integrated.
[0015]
As shown in FIG. 2A, the movable contact piece 45 includes one end of movable portions 45a, 45a arranged side by side on the armature 41 and one end of a substantially U-shaped shield connecting portion 45b. Are integrally formed with the armature 41 by insert-molding one end of the armature into the support 42. A movable contact 45c is provided on the lower surface of the free end of the movable portion 45a. Further, the shield connecting portion 45b has a central portion bent in a shape along the upper surface of the armature 41.
The movable contact piece 44 has the same shape as the above-described movable contact piece 45, and is formed by a movable portion 44a having a movable contact 44c and a shield connecting portion 44b (FIG. 1). And, like the movable contact piece 45, it is integrated with the armature 41 via the support 42.
[0016]
After the supporting projection 41c of the armature 41 is placed on the upper end surface of the permanent magnet 30, the connection 43a of the armature block 40 is welded to the connection receiving portion 23a of the ground terminal 23 insert-molded in the base block 20. By being integrated, the movable contacts 44c and 45c face the fixed contacts 24a and 25a alternately so as to be able to come and go.
[0017]
The case 50 has a box shape that can be fitted to the base block 20, and has a vent hole 51 at a corner of the ceiling surface. Further, the case 50 has cutouts 52a, 52b, 52c, 52d, and 52e formed at the lower end edge of the side wall 52 to be fitted to the respective terminals.
Therefore, when the case 50 is fitted to the base block 20 in which the permanent magnet 30 and the armature block 40 are incorporated, the terminals 21 to 25 are fitted to the cutout portions 52a to 52e of the side wall 52, respectively. Then, after injecting and solidifying a sealing material (not shown) into the bottom surface of the base block 20, the internal gas is sucked from the gas vent hole 51, and is heated and melted for sealing. Then, the front ends of the terminals 21, 23, 24, and 25 are bent inward to form a surface-mounted electromagnetic relay, thereby completing the assembling operation.
[0018]
Although FIG. 2A illustrates a plan partial cross-sectional view of the electromagnetic relay according to the present embodiment, the present invention is not limited to this. For example, as illustrated in FIG. 45b may be located near the support 42. According to this embodiment, there is an advantage that the transmission path is shortened when the contact is closed, and the insertion loss is reduced.
Further, in the above-described embodiment, the case where the distal end of the terminal is bent inward and applied to a surface mount type electromagnetic relay has been described. However, the present invention is not limited to this, and the distal end is bent outward. The present invention may be applied to a type of electromagnetic relay, or may be applied to an electromagnetic relay which is inserted into a through hole of a printed circuit board without bending the tip of the terminal.
[0019]
Next, the operation of the self-returning electromagnetic relay assembled as described above will be described.
First, when no voltage is applied to the coil 18 and the electromagnet block 10 is not excited, the magnetic balance is lost because the permanent magnet 30 is eccentric from the center toward the magnetic pole portion 11a. Therefore, the one end 41a of the armature 41 is attracted to the magnetic pole 11a of the iron core 11, the movable contact 44c of the movable contact piece 44 comes into contact with the fixed contact 24a, and the shield connecting portion 44b is brought into contact with the base block 20. It protrudes from the contact protrusion 26 and is separated from the upper surface of the armature 41. On the other hand, the other end 41b of the armature 41 is separated from the magnetic pole 11b of the iron core 11, the movable contact 45c of the movable contact piece 45 is separated from the fixed contact 25a, and the shield connecting portion 45b is connected to the armature 41. Grounded by contacting the top surface.
[0020]
When a voltage is applied to the coil 18 so that a magnetic flux for canceling the magnetic flux of the permanent magnet 30 is generated, one end 41a of the armature 41 repels the magnetic pole 11a of the iron core 11, and the magnetic pole 11b contacts the magnetic pole 11b. The other end 41b of the pole 41 is sucked. Therefore, the armature 41 rotates against the magnetic force of the permanent magnet 30, and the movable contact 44c is separated from the fixed contact 24a. Then, the shield connecting portion 44b contacts the upper surface of the armature 41 to ground. ing. Accordingly, after the shield connecting portion 45b contacts the contact protrusion 27 of the base block 20 and is separated from the upper surface of the armature 41, the movable contact 45c contacts the fixed contact 25a. The other end 41b is attracted to the magnetic pole 11b of the iron core 11.
[0021]
Then, when the excitation is released, the magnetic balance is lost, so the armature block 40 is rotated in the opposite direction by the magnetic force of the permanent magnet 30, and the movable contact 45c is separated from the fixed contact 25a. The shield connecting portion 45b contacts the upper surface of the armature 41 to ground. Accordingly, the shield connecting portion 44b abuts on the contact protrusion 26 of the base block 20, and the shield connecting portion 44b is separated from the upper surface of the armature 41. Then, the movable contact 44c contacts the fixed contact 24a. Next, the other end portion 41a of the armature 41 is attracted to the magnetic pole portion 11a of the iron core 11, and returns to the original state.
[0022]
In the above-described embodiment, a case has been described in which the present invention is applied to a self-returning type electromagnetic relay. However, the present invention is not limited to this, and it goes without saying that the present invention may be applied to a self-holding type electromagnetic relay.
[0023]
【The invention's effect】
As is clear from the above description, according to the high-frequency relay according to the present invention, since the armature block has a function as the shield block of the conventional example, the number of parts and the number of assembly steps are reduced, and the productivity is improved. In particular, the movable contact piece and the shield connecting portion according to the present invention are simpler than the shape of the shield block of the conventional example, and the parts accuracy and the assembly accuracy are high, so that the contact reliability is improved.
In addition, since the operating characteristics can be inspected at the stage when the movable block is assembled, there is no need to assemble a case and a shield case as in the conventional example, which is convenient and productivity is further improved.
Furthermore, when movable contact pieces are arranged on both sides in the longitudinal direction of the armature, the movable contact pieces are separated and shielded by the ground relay terminal arranged at the center of the armature, so that excellent high-frequency characteristics are obtained. Can be
In particular, if the present invention is applied to a general relay in which a common terminal is arranged in the center of both sides of the base, the common terminal can be used as a ground terminal, so that not only can components be shared, but also a special terminal arrangement as in the conventional example. It does not require any design changes and is easy to use.
According to the second aspect, since the transmission path is shortened when the contacts are closed, there is an effect that insertion loss is reduced.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a high-frequency relay according to the present invention.
2A and 2B show the high-frequency relay shown in FIG. 1, wherein FIG. 2A is a partial plan sectional view and FIG. 2B is a partial partial sectional view of a modification.
FIG. 3 is a front partial sectional view of the high-frequency relay shown in FIG. 1;
FIG. 4 is a side sectional view of the high-frequency relay shown in FIG. 1;
FIG. 5 is a perspective view showing an electromagnet block of the high-frequency relay shown in FIG.
FIG. 6 is an exploded perspective view of a high-frequency relay according to a conventional example.
FIG. 7 is a plan view of an armature block of the electromagnetic relay shown in FIG. 6;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Electromagnetic block, 20 ... Base block, 23 ... Ground terminal, 23a ... Connection receiving part, 24a, 25a ... Fixed contact, 26, 27 ... Contact protrusion, 30 ... Permanent magnet, 40 ... Armature block, 41 ... Armature, 42 support, 43 ground connection terminal, 43a connection part, 44, 45 movable contact piece, 44a, 45a movable part, 44b, 45b shield connection part, 44c, 45c movable contact.

Claims (2)

接極子の略中央部に設けた支持体を介して可動接触片を一体化した接極子ブロックが、ベースに設けた電磁石ブロックの励磁,消磁に基づいて回動し、接点を開閉する高周波リレーにおいて、
前記接極子ブロックが、接極子と、この接極子の略中央部に直交するように配して接続され、かつ、両端部を前記ベースに設けたグランド端子に接続して回動支点となるグランド中継端子と、少なくとも接極子の片側を間にして並設した一対の可動部の一端部に、前記接極子の上面を跨ぐように配した平面略コ字形のシールド用連結部の一端部をそれぞれ連結するとともに、その一端部を前記支持体で支持して前記接極子に一体化した可動接触片とからなり、可動接触片の接点開離時に前記シールド用連結部が前記接極子の上面に接触する一方、可動接触片の接点閉成時にシールド用連結部が前記ベースに突設した当接突部に当接し、前記接極子の上面から開離していることを特徴とする高周波リレー。
An armature block in which a movable contact piece is integrated via a support provided at a substantially central portion of the armature rotates based on excitation and demagnetization of an electromagnet block provided on a base. ,
The armature block is connected to the armature so as to be orthogonal to a substantially central portion of the armature, and both ends are connected to ground terminals provided on the base to serve as a rotation fulcrum. The relay terminal and one end of a pair of movable parts arranged side by side with at least one side of the armature in between, and one end of a planar substantially U-shaped shield connecting part disposed so as to straddle the upper surface of the armature, respectively. A movable contact piece integrated with the armature while supporting one end of the armature with the support, and the shield connecting portion contacts the upper surface of the armature when the contact of the movable contact piece is separated. On the other hand, the radio-frequency relay is characterized in that the shield connecting portion abuts on the contact protrusion protruding from the base when the contact of the movable contact piece is closed, and is separated from the upper surface of the armature.
前記可動接触片のシールド用連結部を、前記支持体近傍に配したことを特徴とする請求項1に記載の高周波リレー。The high-frequency relay according to claim 1, wherein a shield connecting portion of the movable contact piece is arranged near the support.
JP05963496A 1996-03-15 1996-03-15 High frequency relay Expired - Fee Related JP3603455B2 (en)

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JP05963496A JP3603455B2 (en) 1996-03-15 1996-03-15 High frequency relay

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JPH09259725A JPH09259725A (en) 1997-10-03
JP3603455B2 true JP3603455B2 (en) 2004-12-22

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JP3843678B2 (en) * 1999-12-22 2006-11-08 松下電工株式会社 High frequency relay and method of manufacturing high frequency relay

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