JP2009004122A

JP2009004122A - High-frequency relay

Info

Publication number: JP2009004122A
Application number: JP2007161624A
Authority: JP
Inventors: Tatsuo Araya; 達生荒谷; Naritoshi Hoshino; 就俊星野
Original assignee: Panasonic Electric Works Co Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 2007-06-19
Filing date: 2007-06-19
Publication date: 2009-01-08
Anticipated expiration: 2027-06-19
Also published as: JP4363462B2; CN101329967A; CN101329967B

Abstract

<P>PROBLEM TO BE SOLVED: To restrain characteristic deterioration due to resonation caused at a magnetic circuit. <P>SOLUTION: While attaching an electromagnet block 2 and a fixed terminal block 3 on a base 1 made of synthetic resin, a card block 6 is attached to a yoke 34 of the electromagnet block 2. A state of forming a case (not shown) with one face open to be jointed to the base 1, is common to conventional examples, however, a short circuit means (a short circuit plate 7) for electrically short-circuiting a magnetic circuit containing an iron core 33 and a yoke 34 of the electromagnet block 2, is provided. Since the iron core 33 and the yoke 34 are electrically short-circuited by the short circuit plate 7, a resonance frequency of resonation is shifted to a high frequency side, so that, characteristic deterioration in a relatively lower frequency band can be restrained. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、高周波リレーに関するものである。 The present invention relates to a high frequency relay.

従来の高周波リレーとして特許文献１に記載されているようなものがある。この高周波リレーは、図１１に示すように合成樹脂製のメインベース１に電磁石ブロック２および固定端子ブロック３およびカードブロック６を取り付け、一面が開口したケース４をメインベース１に結合して形成されている。 There exists a thing as described in patent document 1 as a conventional high frequency relay. As shown in FIG. 11, this high frequency relay is formed by attaching an electromagnet block 2, a fixed terminal block 3 and a card block 6 to a synthetic resin main base 1, and connecting a case 4 whose one side is open to the main base 1. ing.

電磁石ブロック２は、コイル３１を巻装した筒状のコイルボビン３２に挿通された鉄芯３３を備えている。鉄芯３３の一端部にはヨーク３４の一端部が結合されている。ヨーク３４は図１１においてコイル３１の手前側を通る第１ヨーク片３４ａと、図１１においてコイル３１の下側を通る第２ヨーク片３４ｂとを有し、第１ヨーク片３４ａと第２ヨーク片３４ｂとの他端部は、鉄芯３３の他端部に離間して対向する位置まで延長されている。つまり、第１ヨーク片３４ａと第２ヨーク片３４ｂとの上記他端部は対向し、その対向部位の間に鉄芯３３の上記他端部が位置している。ヨーク３４は、図１１において下方に突設された圧入片３４ｃ，３４ｄがメインベース１に表裏に貫通して設けたヨーク圧入孔（図示せず）に圧入されることによって、メインベース１に固定されている。コイル３１の両端はコイル端子３５に接続されている。 The electromagnet block 2 includes an iron core 33 inserted through a cylindrical coil bobbin 32 around which a coil 31 is wound. One end of the yoke 34 is coupled to one end of the iron core 33. The yoke 34 has a first yoke piece 34a that passes the front side of the coil 31 in FIG. 11 and a second yoke piece 34b that passes the lower side of the coil 31 in FIG. 11, and the first yoke piece 34a and the second yoke piece. The other end of 34b is extended to a position facing the other end of the iron core 33 while being spaced apart. That is, the other end portions of the first yoke piece 34a and the second yoke piece 34b are opposed to each other, and the other end portion of the iron core 33 is located between the opposed portions. The yoke 34 is fixed to the main base 1 by press-fitting press-fitting pieces 34 c and 34 d projecting downward in FIG. 11 into yoke press-fitting holes (not shown) provided through the main base 1 on the front and back sides. Has been. Both ends of the coil 31 are connected to the coil terminal 35.

カードブロック６は、平衡ばね４１を介してメインベース１に取り付けられる可動基台４０を備えている。可動基台４０には永久磁石４２および永久磁石４２の各磁極に結合した一対の接極子４３が保持されている。各接極子４３はそれぞれ鉄芯３３の上記他端部と第１ヨーク片３４ａまたは第２ヨーク片３４ｂの上記他端部との間に挿入されている。つまり、コイル３１の励磁極性に応じて、両接極子４３が鉄芯３３と第１ヨーク片３４ａとに吸引される状態と、両接極子４３が鉄芯３３と第２ヨーク片３４ｂとに吸引される状態とが生じる。 The card block 6 includes a movable base 40 that is attached to the main base 1 via a balance spring 41. The movable base 40 holds a permanent magnet 42 and a pair of armatures 43 coupled to the magnetic poles of the permanent magnet 42. Each armature 43 is inserted between the other end of the iron core 33 and the other end of the first yoke piece 34a or the second yoke piece 34b. That is, according to the excitation polarity of the coil 31, both armatures 43 are attracted to the iron core 33 and the first yoke piece 34a, and both armatures 43 are attracted to the iron core 33 and the second yoke piece 34b. State occurs.

平衡ばね４１は平衡ばね保持板４４に固着され、平衡ばね保持板４４は一部がメインベース１に設けた保持孔５に圧入されることによって、メインベース１に固定される。この平衡ばね４１は口字状に形成された板ばねであって、可動基台４０をメインベース１に対して揺動可能に保持する。平衡ばね４１に撓みがない状態では両接極子４３は、それぞれ鉄芯３３と第１ヨーク片３４ａおよび第２ヨーク片３４ｂの中間に位置する。 The balance spring 41 is fixed to the balance spring holding plate 44, and the balance spring holding plate 44 is fixed to the main base 1 by being partly press-fitted into the holding hole 5 provided in the main base 1. The balance spring 41 is a plate spring formed in a square shape, and holds the movable base 40 so as to be swingable with respect to the main base 1. In a state where the balance spring 41 is not bent, the two armatures 43 are positioned between the iron core 33, the first yoke piece 34a, and the second yoke piece 34b, respectively.

しかして、コイル３１を励磁すれば、上述のように励磁極性に応じて接極子４３が鉄芯３３および第１ヨーク片３４ａまたは第２ヨーク片３４ｂに吸引されるから、接極子４３の吸引される向きに可動基台４０が移動することになる。この動作では、コイル３１を励磁して接極子４３が第１ヨーク片３４ａまたは第２ヨーク片３４ｂに一旦吸引されると、次にコイル３１が逆極性に励磁するまで可動基台４０は移動しないから双安定動作になる。ただし、鉄芯３３における第１ヨーク片３４ａとの対向面に非磁性体のレシジュアルプレート３６を固着し、接極子４３が第２ヨーク片３４ｂに吸引されたときの永久磁石４２による吸引力が平衡ばね４１による復帰力よりも弱くなるように、吸引力を弱めて単安定動作になるように構成してある。つまり、接極子４３を第２ヨーク片３４ｂに吸引させるにはコイル３１を励磁しなければならないが、コイル３１の励磁を停止すれば平衡ばね４１のばね力によって接極子４３が第１ヨーク片３４ａに吸引されるようにしてある。その結果、コイル３１に電流を流す向きを切り換えることなくコイル３１に通電するか否かによって可動基台４０を往復運動させることができる。 If the coil 31 is excited, the armature 43 is attracted to the iron core 33 and the first yoke piece 34a or the second yoke piece 34b according to the excitation polarity as described above. The movable base 40 moves in the direction to be moved. In this operation, when the coil 31 is excited and the armature 43 is once attracted to the first yoke piece 34a or the second yoke piece 34b, the movable base 40 does not move until the coil 31 is next excited to the opposite polarity. To bistable operation. However, when the nonmagnetic magnetic referential plate 36 is fixed to the surface of the iron core 33 facing the first yoke piece 34a, the attractive force by the permanent magnet 42 when the armature 43 is attracted to the second yoke piece 34b is increased. The suction force is weakened so as to be monostable so as to be weaker than the restoring force by the balance spring 41. That is, in order to attract the armature 43 to the second yoke piece 34b, the coil 31 must be excited. When the excitation of the coil 31 is stopped, the armature 43 is caused to move by the spring force of the balance spring 41. To be sucked. As a result, the movable base 40 can be reciprocated depending on whether or not the coil 31 is energized without switching the direction of current flow through the coil 31.

可動基台４０の一方の側部には絶縁材料の保持部材４５を介して一対の可動接触板１３ａ，１３ｂが保持される。各可動接触板１３ａ，１３ｂはそれぞれ導電性のよい金属板よりなり、長手方向の中間部がそれぞれ保持部材４５に保持されている。両可動接触板１３ａ，１３ｂは可動基台４０の揺動方向において離間して配置され、両可動接触板１３ａ，１３ｂは一端部同士が互いに対向している。 A pair of movable contact plates 13 a and 13 b is held on one side of the movable base 40 via a holding member 45 made of an insulating material. Each of the movable contact plates 13 a and 13 b is made of a metal plate having good conductivity, and the intermediate portion in the longitudinal direction is held by the holding member 45. Both movable contact plates 13a and 13b are spaced apart from each other in the swinging direction of the movable base 40, and both movable contact plates 13a and 13b are opposed to each other at one end.

固定端子ブロック３は、中間部が円柱状の絶縁部材１５に貫通された３本の端子ピン１２ａ〜１２ｃを備えている。絶縁部材１５は金属製のベース１０の端子用孔１７に挿通された形で保持されて封着ガラスにより封着され、各端子ピン１２ａ〜１２ｃはベース１０に挿通されることになる。また、ベース１０の上には端子ピン１２ａ〜１２ｃをベース１０とともに囲むシールド板１１が配設される。さらに、ベース１０には４本のアース端子１４が孔１８に挿通され固着されている。ベース１０は下部がメインベース１の下面よりも下方へ突出する形でメインベース１の側部に固定される。 The fixed terminal block 3 includes three terminal pins 12a to 12c whose intermediate portions are penetrated by a cylindrical insulating member 15. The insulating member 15 is held in a form inserted into the terminal hole 17 of the metal base 10 and sealed with sealing glass, and the terminal pins 12 a to 12 c are inserted into the base 10. A shield plate 11 is disposed on the base 10 so as to surround the terminal pins 12 a to 12 c together with the base 10. Further, four ground terminals 14 are inserted into the holes 18 and fixed to the base 10. The base 10 is fixed to the side portion of the main base 1 such that the lower portion protrudes downward from the lower surface of the main base 1.

端子ピン１２ａ〜１２ｃは、一直線上に配列され、中央の端子ピン１２ｂと他の端子ピン１２ａ，１２ｃとの間を可動接触板１３ａ，１３ｂで短絡する状態と開放する状態とを選択可能とすることによって接点装置３が構成される。例えば、コイル３１を励磁していない状態で可動接触板１３ａが端子ピン１２ａ，１２ｂの間を短絡し、可動接触板１３ｂが端子ピン１２ｂ，１２ｃの間を開放するようにすれば、端子ピン１２ａ，１２ｂと可動接触板１３ａとにより常閉接点が構成され、端子ピン１２ｂ，１２ｃと可動接触板１３ｂとにより常開接点が構成される。 The terminal pins 12a to 12c are arranged in a straight line, and a state in which the center terminal pin 12b and the other terminal pins 12a and 12c are short-circuited by the movable contact plates 13a and 13b and a state in which they are opened can be selected. Thus, the contact device 3 is configured. For example, if the movable contact plate 13a short-circuits between the terminal pins 12a and 12b and the movable contact plate 13b opens between the terminal pins 12b and 12c in a state where the coil 31 is not excited, the terminal pin 12a. 12b and the movable contact plate 13a constitute a normally closed contact, and the terminal pins 12b and 12c and the movable contact plate 13b constitute a normally open contact.

シールド板１１は、上方が開放された直方体状に形成されており、ベース１０の上面の要所にクリームはんだを塗布した後にベース１０に重ね合わせてシールド板１１の底壁に穿孔された挿通孔（図示せず）に挿入されたアース端子１４の先端部をかしめ、恒温槽を用いて上記クリームはんだを硬化させることによりベース１０に結合される。なお、各端子ピン１２ａ〜１２ｃの一端側は、シールド板１１の底壁に設けられた挿通孔を通してシールド板１１で囲まれる空間に収納される。
特開２０００−１８２４９９号公報 The shield plate 11 is formed in a rectangular parallelepiped shape with the top opened, and an insertion hole is formed in the bottom wall of the shield plate 11 by being applied to the base 10 and then overlaid on the base 10 after applying cream solder. The tip of the ground terminal 14 inserted in (not shown) is caulked, and the cream solder is cured using a thermostatic bath to be coupled to the base 10. One end side of each of the terminal pins 12 a to 12 c is accommodated in a space surrounded by the shield plate 11 through an insertion hole provided in the bottom wall of the shield plate 11.
JP 2000-182499 A

ところで上記従来例においては、固定端ブロック３と電磁石ブロック２との間の高周波的な絶縁が充分でないため、固定端子ブロック３から入力する高周波信号に対して電磁石ブロック２の磁気回路に起因した共振が発生し、かかる共振によって、図６（ｂ）に示すように高周波信号の周波数帯域（例えば、３ＧＨｚ近傍）におけるインサーションロスにリップルが生じてしまい、高周波リレーとしての特性が劣化するという問題があった。 By the way, in the above conventional example, since the high-frequency insulation between the fixed end block 3 and the electromagnet block 2 is not sufficient, resonance caused by the magnetic circuit of the electromagnet block 2 with respect to the high-frequency signal input from the fixed terminal block 3. As a result of this resonance, ripples occur in the insertion loss in the frequency band of the high frequency signal (for example, in the vicinity of 3 GHz) as shown in FIG. 6B, and the characteristics of the high frequency relay deteriorate. there were.

本発明は上記事情に鑑みて為されたものであり、その目的は、磁気回路に起因した共振による特性劣化を抑制することができる高周波リレーを提供することにある。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a high frequency relay capable of suppressing characteristic deterioration due to resonance caused by a magnetic circuit.

請求項１の発明は、上記目的を達成するために、コイルが外挿された鉄心並びに鉄心の一端に結合されるとともに鉄心の他端と離間したヨークを有する電磁石ブロックと、鉄心並びにヨークと対向配置された接極子並びに可動接触板を有し当該接極子が鉄心並びにヨークに吸引されることで可動接触子を移動させるカードブロックと、可動接触子と接離する固定端子を有する固定端子ブロックと、絶縁材料からなり電磁石ブロック並びに固定端子ブロックが取り付けられるベースと、鉄心とヨークを含む磁気回路を電気的に短絡させる短絡手段とを備えたことを特徴とする。 In order to achieve the above object, the invention according to claim 1 is an iron core with an extrapolated coil, an electromagnetic block having a yoke coupled to one end of the iron core and spaced apart from the other end of the iron core, and the iron core and the yoke. A card block having an arranged armature and a movable contact plate and moving the movable contact when the armature is attracted to the iron core and the yoke; and a fixed terminal block having a fixed terminal contacting and moving away from the movable contact And a base on which an electromagnet block and a fixed terminal block are made of an insulating material, and a short-circuit means for electrically short-circuiting a magnetic circuit including an iron core and a yoke.

請求項１の発明によれば、鉄心とヨークを含む磁気回路を短絡手段によって電気的に短絡させるので、磁気回路に起因した共振の共振周波数を高周波側にシフトさせることができ、相対的に低い周波数帯域における特性劣化を抑制することができる。 According to the invention of claim 1, since the magnetic circuit including the iron core and the yoke is electrically short-circuited by the short-circuit means, the resonance frequency of the resonance caused by the magnetic circuit can be shifted to the high frequency side and is relatively low. It is possible to suppress deterioration of characteristics in the frequency band.

請求項２の発明は、請求項１の発明において、前記短絡手段は、導電性を有する非磁性体からなることを特徴とする。 According to a second aspect of the present invention, in the first aspect of the invention, the short-circuit means is made of a nonmagnetic material having conductivity.

請求項２の発明によれば、短絡手段が非磁性体からなるので、磁気回路の磁気抵抗が増加しないから動作特性を劣化させることがない。 According to the invention of claim 2, since the short-circuit means is made of a non-magnetic material, the magnetic resistance of the magnetic circuit does not increase, so that the operating characteristics are not deteriorated.

請求項３の発明は、請求項１又は２の発明において、前記短絡手段は、弾性を有する材料からなり鉄心並びにヨークに弾接して導通することを特徴とする。 According to a third aspect of the present invention, in the first or second aspect of the present invention, the short-circuit means is made of a material having elasticity and is electrically connected to the iron core and the yoke.

請求項３の発明によれば、短絡手段が鉄心並びにヨークに弾接して導通するので、例えば、半田付けによって導通させる場合と比較して製造工程が簡素化できる。 According to the invention of claim 3, since the short-circuit means is brought into electrical contact with the iron core and the yoke, the manufacturing process can be simplified as compared with a case where the short-circuit means is conducted by soldering, for example.

請求項４の発明は、請求項１〜３の何れか１項の発明において、前記短絡手段は、板状の金属材料によって、ベースに固定される固定片と、鉄心に接触する第１の接触部と、ヨークに接触する第２の接触部とが一体に形成されてなることを特徴とする。 According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the short-circuit means includes a fixed piece fixed to the base and a first contact contacting the iron core by a plate-shaped metal material. And the second contact portion that contacts the yoke are integrally formed.

請求項４の発明によれば、板状の金属材料を加工することで短絡手段を簡単に製造することができ、しかも、固定片によってベースに固定されるから別途固定手段を設ける必要が無く製造工程が簡素化できる。 According to the invention of claim 4, the short-circuit means can be easily manufactured by processing a plate-shaped metal material, and it is manufactured without the need for providing a separate fixing means since it is fixed to the base by the fixing piece. The process can be simplified.

請求項５の発明は、請求項１〜３の何れか１項の発明において、鉄心は長手方向の一端がヨークに結合された棒状に形成され、前記短絡手段は、ヨークに結合されている端部から鉄心の全長の３分の２の長さの位置で鉄心とヨークを短絡させることを特徴とする。 According to a fifth aspect of the present invention, in the invention according to any one of the first to third aspects, the iron core is formed in a rod shape in which one end in the longitudinal direction is coupled to the yoke, and the short-circuit means is an end coupled to the yoke. The iron core and the yoke are short-circuited at a position that is two-thirds of the total length of the iron core from the section.

請求項５の発明によれば、共振周波数を可能な範囲で最も高い周波数にシフトさせることができる。 According to the invention of claim 5, the resonance frequency can be shifted to the highest frequency possible.

本発明によれば、磁気回路に起因した共振の共振周波数を高周波側にシフトさせて相対的に低い周波数帯域における特性劣化を抑制することができる。 According to the present invention, it is possible to suppress characteristic deterioration in a relatively low frequency band by shifting the resonance frequency of resonance caused by the magnetic circuit to the high frequency side.

（実施形態１）
図１〜図６を参照して本発明の実施形態１を説明する。但し、図２に示すように本実施形態の基本的な構成は図１１に示した従来例と共通であるから、形状や寸法が若干異なっていても同一の機能を有する構成要素については同一の符号を付して適宜説明を省略する。 (Embodiment 1)
A first embodiment of the present invention will be described with reference to FIGS. However, as shown in FIG. 2, the basic configuration of the present embodiment is the same as that of the conventional example shown in FIG. 11. Therefore, the components having the same functions are the same even if the shapes and dimensions are slightly different. Reference numerals are assigned and explanations are omitted as appropriate.

本実施形態の高周波リレーは、図１〜図４に示すように合成樹脂製のベース１に電磁石ブロック２及び固定端子ブロック３を取り付けるとともに電磁石ブロック２のヨーク３４にカードブロック６を取り付け、一面が開口したケース（図示せず）をベース１に結合して形成されている点は従来例と共通であるが、電磁石ブロック２の鉄心３３とヨーク３４を含む磁気回路を電気的に短絡させる短絡手段を備えている点に特徴がある。 As shown in FIGS. 1 to 4, the high-frequency relay of the present embodiment has the electromagnet block 2 and the fixed terminal block 3 attached to the synthetic resin base 1 and the card block 6 attached to the yoke 34 of the electromagnet block 2. A short circuit means for electrically short-circuiting the magnetic circuit including the iron core 33 and the yoke 34 of the electromagnet block 2 is the same as the conventional example in that it is formed by coupling an open case (not shown) to the base 1. It is characterized by having

電磁石ブロック２は、図２に示すようにコイル３１を巻装した筒状のコイルボビン３２に挿通された棒状の鉄芯３３を備えている。鉄芯３３の長手方向の一端部にはヨーク３４の一端部が結合されている。ヨーク３４は図２においてコイル３１の下側を通る主片３４Ａを有し、主片３４Ａの先端部には図２において鉄心３３の奥側に対向配置された第１ヨーク片３４ａと、図２において鉄心３３の手前側に対向配置された第２ヨーク片３４ｂとが全体として略コ字状に形成されている。つまり、第１及び第２のヨーク片３４ａ，３４ｂの間に鉄心３３の他端部が位置している。 As shown in FIG. 2, the electromagnet block 2 includes a rod-shaped iron core 33 inserted through a cylindrical coil bobbin 32 around which a coil 31 is wound. One end of the yoke 34 is coupled to one end of the iron core 33 in the longitudinal direction. The yoke 34 has a main piece 34A passing through the lower side of the coil 31 in FIG. 2, and a first yoke piece 34a disposed opposite to the inner side of the iron core 33 in FIG. The second yoke piece 34b disposed opposite to the front side of the iron core 33 is formed in a substantially U shape as a whole. That is, the other end of the iron core 33 is located between the first and second yoke pieces 34a and 34b.

本実施形態における短絡手段は、ベース１に固定される一対の固定片７０，７０と、両固定片７０，７０を一端部で連結する連結片７１と、一方の固定片７０における連結片７１側の端部より略直角に曲げ起こされた腕片７２とを備える短絡板７からなる。この短絡板７は、図２及び図５に示すように弾性及び導電性を有する非磁性体からなる板状の金属材料を打ち抜き及び曲げ加工することで固定片７０，７０、連結片７１、腕片７２が一体に形成されてなる。また、各固定片７０，７０の中央部には連結片７１に近付く向きに外側へ突出する圧入片７０ａがそれぞれ切り起こし形成されている。ベース１の長手方向に対向する側壁のうちで鉄心３３の他端部と第１及び第２のヨーク片３４ａ，３４ｂとに対向する側の側壁には図２において上方並びに右方へ開口した圧入溝１ａ，１ａが形成されており、圧入片７０ａ，７０ａを撓めるようにして各固定片７０，７０をそれぞれ圧入溝１ａ，１ａに圧入することで短絡板７がベース１に取り付けられる（図３参照）。但し、ベース１へ取り付ける際、腕片７２の端縁が第１のヨーク片３４ａに当たって腕片７２が変形するなどの不具合が生じないように、腕片７２の先端部には図２における下側の端縁より下方へ突出し且つ下方に向かって手前から奥へ傾斜するガイド片７２ａが設けられており、このガイド片７２ａに第１のヨーク片３４ａが摺接して短絡板７をガイドしている。 In the present embodiment, the short-circuit means includes a pair of fixed pieces 70 and 70 fixed to the base 1, a connecting piece 71 that connects both the fixed pieces 70 and 70 at one end, and the connecting piece 71 side of the one fixed piece 70. And an arm piece 72 bent and raised at a substantially right angle from the end of the short-circuit plate 7. As shown in FIGS. 2 and 5, the short-circuit plate 7 is formed by punching and bending a plate-like metal material made of a non-magnetic material having elasticity and conductivity, thereby fixing pieces 70, 70, connecting pieces 71, arms. The piece 72 is formed integrally. In addition, press-fitting pieces 70 a protruding outward in the direction approaching the connecting piece 71 are formed by cutting and raising at the central portions of the fixed pieces 70 and 70, respectively. Of the side walls facing the longitudinal direction of the base 1, the side wall facing the other end of the iron core 33 and the first and second yoke pieces 34a, 34b is press-fitted open upward and rightward in FIG. Grooves 1a and 1a are formed, and the short-circuit plate 7 is attached to the base 1 by press-fitting the fixed pieces 70 and 70 into the press-fit grooves 1a and 1a, respectively, so as to bend the press-fit pieces 70a and 70a ( (See FIG. 3). However, when the arm piece 72 is attached to the base 1, the end of the arm piece 72 is placed on the lower side in FIG. 2 so that the edge of the arm piece 72 hits the first yoke piece 34 a and the arm piece 72 is not deformed. A guide piece 72a is provided which protrudes downward from the edge of the plate and inclines downward from the front to the back, and the first yoke piece 34a slides on the guide piece 72a to guide the short-circuit plate 7. .

また、短絡板７の連結片７１中央には、ベース１に取り付けられたときに鉄心３３と対向する向き（図２における右向き）に突出する切り起こし片が形成されており、当該切り起こし片が鉄心３３の他端部と弾接（接触）する第１の接触部７３となる。さらに、腕片７２の先端部分には第１のヨーク片３４ａと対向する向き（図２における奥から手前に向かう向き）に突出するダボが形成されており、当該ダボが第１のヨーク片３４ａと弾接（接触）する第２の接触部７４となる。 Further, at the center of the connecting piece 71 of the short-circuit plate 7, a cut-and-raised piece that protrudes in a direction facing the iron core 33 (rightward in FIG. 2) when attached to the base 1 is formed. The first contact portion 73 is in elastic contact (contact) with the other end of the iron core 33. Further, a dowel projecting in the direction facing the first yoke piece 34a (the direction from the back to the front in FIG. 2) is formed at the distal end portion of the arm piece 72, and the dowel is formed in the first yoke piece 34a. The second contact portion 74 is in elastic contact (contact).

而して、ベース１に電磁石ブロック２を取り付けた後、短絡板７をベース１に取り付ければ、連結片７１に設けられた第１の接触部７３が鉄心３３の他端部に弾接するとともに腕片７２に設けられた第２の接触部７４が第１のヨーク片３４ａに弾接することで鉄心３３とヨーク３４が短絡板７を介して電気的に短絡（導通）させることができる（図１及び図４参照）。 Thus, after the electromagnet block 2 is attached to the base 1 and the short-circuit plate 7 is attached to the base 1, the first contact portion 73 provided on the connecting piece 71 elastically contacts the other end of the iron core 33 and the arm. The second contact portion 74 provided on the piece 72 is elastically contacted with the first yoke piece 34a, whereby the iron core 33 and the yoke 34 can be electrically short-circuited (conducted) via the short-circuit plate 7 (FIG. 1). And FIG. 4).

従来技術で説明したように、固定端ブロック３と電磁石ブロック２との間の高周波的な絶縁が充分でないために固定端子ブロック３から入力する高周波信号に対して電磁石ブロック２の磁気回路に起因した共振が発生し、かかる共振によってインサーションロスにリップルＲipが生じてしまう。そして、鉄心３３とヨーク３４が電気的に短絡されていない従来例では、図６（ｂ）に示すように高周波信号の周波数帯域（例えば、３ＧＨｚ近傍）にリップルＲipが生じていた。これに対して本実施形態では、短絡板７によって鉄心３３とヨーク（第１のヨーク片３４ａ）を電気的に短絡したので、上記共振の共振周波数を高周波側にシフトさせることができる。その結果、図６（ａ）に示すようにインサーションロスに生じるリップルＲipも従来例に比べて高周波側（約４．８ＧＨｚ近傍）にシフトするため、相対的に低い周波数帯域（例えば、３ＧＨｚ周辺）における特性劣化を抑制することができる。 As explained in the prior art, because the high frequency insulation between the fixed end block 3 and the electromagnet block 2 is not sufficient, the high frequency signal input from the fixed terminal block 3 is caused by the magnetic circuit of the electromagnet block 2. Resonance occurs, and this resonance causes a ripple Rip in the insertion loss. In the conventional example in which the iron core 33 and the yoke 34 are not electrically short-circuited, as shown in FIG. 6B, a ripple Rip occurs in the frequency band of the high-frequency signal (for example, in the vicinity of 3 GHz). On the other hand, in this embodiment, since the iron core 33 and the yoke (first yoke piece 34a) are electrically short-circuited by the short-circuit plate 7, the resonance frequency of the resonance can be shifted to the high frequency side. As a result, as shown in FIG. 6A, the ripple Rip generated in the insertion loss is also shifted to the high frequency side (around 4.8 GHz) as compared with the conventional example, so that a relatively low frequency band (for example, around 3 GHz) ) Can be suppressed.

また、本実施形態では短絡板７が非磁性体からなるので、磁気回路の磁気抵抗が増加しないから高周波リレーの動作特性を劣化させることがなく、また、短絡板７を鉄心３３並びにヨーク３４に弾接して導通させているので、例えば、半田付けによって導通させる場合と比較して製造工程が簡素化できるという利点がある。さらに、本実施形態の短絡板７は板状の金属材料を加工することで簡単に製造することができ、しかも、固定片７０，７０によってベース１に固定されるから別途固定手段を設ける必要が無く、高周波リレーの製造工程が簡素化できるという利点がある。 Further, in this embodiment, since the short-circuit plate 7 is made of a non-magnetic material, the magnetic resistance of the magnetic circuit does not increase, so that the operating characteristics of the high-frequency relay are not deteriorated, and the short-circuit plate 7 is attached to the iron core 33 and the yoke 34. Since the contact is conducted by elastic contact, for example, there is an advantage that the manufacturing process can be simplified as compared with the case of conducting by soldering. Furthermore, the short-circuit plate 7 according to the present embodiment can be easily manufactured by processing a plate-like metal material. Further, since the short-circuit plate 7 is fixed to the base 1 by the fixing pieces 70 and 70, it is necessary to provide a separate fixing means. And there is an advantage that the manufacturing process of the high frequency relay can be simplified.

（実施形態２）
本実施形態は、従来例において鉄芯３３における第１ヨーク片３４ａとの対向面に固着されている非磁性体のレシジュアルプレート３６を短絡手段とした点に特徴がある。具体的には、図７に示すようにレシジュアルプレート３６の端部をヨーク３４に当接させることでレシジュアルプレート３６を介して鉄心３３とヨーク３４を短絡（導通）している。なお、これ以外の構成は従来例若しくは実施形態１と共通であるから、共通の構成要素に同一の符号を付して適宜図示並びに説明を省略する。 (Embodiment 2)
The present embodiment is characterized in that, in the conventional example, a non-magnetic progressive plate 36 fixed to the surface of the iron core 33 facing the first yoke piece 34a is used as a short-circuit means. Specifically, as shown in FIG. 7, the iron core 33 and the yoke 34 are short-circuited (conducted) via the sequential plate 36 by bringing the end of the sequential plate 36 into contact with the yoke 34. Since the other configuration is the same as that of the conventional example or the first embodiment, the same components are denoted by the same reference numerals, and illustration and description thereof are omitted as appropriate.

本実施形態の高周波リレーでは、他の用途を有するレシジュアルプレート３６を短絡手段に兼用したので、実施形態１のように別部品（短絡板７）を追加する必要が無く、部品点数並びに製造工程の増加によるコストアップを防ぐことができるという利点がある。 In the high frequency relay of the present embodiment, since the sequential plate 36 having other uses is also used as the short-circuit means, it is not necessary to add another component (short-circuit plate 7) as in the first embodiment, and the number of components and the manufacturing process are eliminated. There is an advantage that it is possible to prevent an increase in cost due to an increase in.

（実施形態３）
本実施形態は、図８〜図１０に示すように鉄心３３とヨーク３４の主片３４Ａとの間に配置される短絡ばね８を短絡手段とした点に特徴がある。なお、これ以外の構成は従来例若しくは実施形態１と共通であるから、共通の構成要素に同一の符号を付して適宜図示並びに説明を省略する。 (Embodiment 3)
This embodiment is characterized in that the short-circuit spring 8 disposed between the iron core 33 and the main piece 34A of the yoke 34 is used as a short-circuit means as shown in FIGS. Since the other configuration is the same as that of the conventional example or the first embodiment, the same components are denoted by the same reference numerals, and illustration and description thereof are omitted as appropriate.

短絡ばね８は、弾性及び導電性を有する非磁性材料の板材を加工することにより、帯状の主片８０と、主片８０の長手方向両端部が互いに主片８０の厚み方向における逆向きに曲げられてなる一対の接触片８１，８２とが一体に形成されてなる。そして、一方の接触片（第１の接触部）８１を鉄心３３の端面に接触させ、他方の接触片（第２の接触部）８２をヨーク３４の主片３４Ａに接触させることで短絡ばね８を介して鉄心３３とヨーク３４を短絡させている。なお、短絡ばね８の配設位置、つまり、鉄心３３とヨーク３４を短絡させる位置は図８に示すように鉄心３３とヨーク３４の結合部分の近傍、図９に示すように鉄心３３の他端部（結合部分から最も離れた位置）、あるいは図１０に示すようにその中間の位置の何れかが考えられる。 The short-circuit spring 8 is formed by processing a plate material made of a non-magnetic material having elasticity and conductivity, so that the strip-shaped main piece 80 and the longitudinal ends of the main piece 80 are bent in opposite directions in the thickness direction of the main piece 80. A pair of contact pieces 81 and 82 are integrally formed. One contact piece (first contact portion) 81 is brought into contact with the end surface of the iron core 33, and the other contact piece (second contact portion) 82 is brought into contact with the main piece 34A of the yoke 34, whereby the short-circuit spring 8 is obtained. The iron core 33 and the yoke 34 are short-circuited via. The position where the short-circuit spring 8 is disposed, that is, the position where the iron core 33 and the yoke 34 are short-circuited is as shown in FIG. 8 in the vicinity of the connecting portion of the iron core 33 and the yoke 34, and the other end of the iron core 33 as shown in FIG. Either the part (position farthest from the coupling part) or an intermediate position as shown in FIG. 10 can be considered.

ここで、図１０に示すように鉄心３３の全長をＬ、鉄心３３のヨーク３４と結合されている側の端部から長手方向に沿った距離をｘとしたとき、距離ｘの位置で鉄心３３とヨーク３４が短絡されるとすると、鉄心３３とヨーク３４が結合されている端部の位置と短絡位置が共振の節となり、Ｌ≠ｘであれば鉄心３３の他端部が共振の腹となるから、距離ｘの間で生じる共振の共振周波数をｆ１、距離ｘよりも遠い位置で生じる共振の共振周波数をｆ２とすると、
ｆ１＝２ｘ，ｆ２＝４（Ｌ−ｘ）
となる。そして、これらの共振周波数ｆ１，ｆ２が等しいとおくと、
２ｘ＝４（Ｌ−ｘ）
ｘ＝２Ｌ／３
となる。すなわち、距離ｘが鉄心３３の全長Ｌの３分の２の値であるときに共振周波数ｆ１，ｆ２が最も高くなることになるから、このような位置を短絡位置とすれば共振周波数のシフト量を可能な範囲（鉄心３３の全長Ｌに基づく範囲）内で最大とすることができる。そして、共振周波数のシフト量が最大になれば、インサーションロスに生じるリップルＲipの高周波側へのシフト量も最大となり、相対的に低い周波数帯域における特性劣化を最大限に抑制することができる。故に、短絡ばね８の配設位置としては、図１０に示すようにヨーク３４に結合されている端部（図１０における右端）から鉄心３３の全長の３分の２の長さの位置とすることが望ましい。 Here, as shown in FIG. 10, when the total length of the iron core 33 is L, and the distance along the longitudinal direction from the end of the iron core 33 connected to the yoke 34 is x, the iron core 33 is located at the position of the distance x. If the yoke 34 is short-circuited, the position of the end where the iron core 33 and the yoke 34 are coupled and the short-circuited position become resonance nodes, and if L ≠ x, the other end of the iron core 33 becomes the antinode of resonance. Therefore, if the resonance frequency of the resonance that occurs between the distance x is f1, and the resonance frequency of the resonance that occurs at a position far from the distance x is f2,
f1 = 2x, f2 = 4 (Lx)
It becomes. And if these resonance frequencies f1 and f2 are equal,
2x = 4 (Lx)
x = 2L / 3
It becomes. That is, when the distance x is 2/3 of the total length L of the iron core 33, the resonance frequencies f1 and f2 become the highest. If such a position is set as the short-circuited position, the shift amount of the resonance frequency is set. Can be maximized within a possible range (range based on the total length L of the iron core 33). If the shift amount of the resonance frequency is maximized, the shift amount of the ripple Rip generated in the insertion loss to the high frequency side is also maximized, and characteristic deterioration in a relatively low frequency band can be suppressed to the maximum. Therefore, the arrangement position of the short-circuit spring 8 is a position that is two-thirds as long as the entire length of the iron core 33 from the end (the right end in FIG. 10) coupled to the yoke 34 as shown in FIG. It is desirable.

本発明の実施形態１を示し、ケースを取り外した状態の平面図である。It is the top view of the state which showed Embodiment 1 of this invention and removed the case. 同上の分解斜視図である。It is an exploded perspective view same as the above. 同上のケースを取り外した状態の斜視図である。It is a perspective view of the state which removed the same case. 同上のケースを取り外した状態の斜視図である。It is a perspective view of the state which removed the same case. 同上における短絡板を示し、（ａ）は正面図、（ｂ）は右側面図、（ｃ）は背面図、（ｄ）は上面図である。The short circuit board in the same as above is shown, (a) is a front view, (b) is a right side view, (c) is a rear view, and (d) is a top view. （ａ）は同上のインサーションロスを示す波形図、（ｂ）は従来例のインサーションロスを示す波形図である。(A) is a wave form diagram which shows the insertion loss same as the above, (b) is a wave form diagram which shows the insertion loss of a prior art example. 本発明の実施形態２における電磁石ブロックの斜視図である。It is a perspective view of the electromagnet block in Embodiment 2 of this invention. 本発明の実施形態３における電磁石ブロックの一部破断した斜視図である。It is the partially broken perspective view of the electromagnet block in Embodiment 3 of this invention. 同上における電磁石ブロックの一部破断した斜視図である。It is the perspective view which fractured | ruptured partially the electromagnet block in the same as the above. 同上における電磁石ブロックの一部破断した斜視図である。It is the perspective view which fractured | ruptured partially the electromagnet block in the same as the above. 従来例の分解斜視図である。It is a disassembled perspective view of a prior art example.

Explanation of symbols

１ベース
２電磁石ブロック
３固定端子ブロック
６カードブロック
７短絡板
３３鉄心
３４ヨーク 1 Base 2 Electromagnet Block 3 Fixed Terminal Block 6 Card Block 7 Shorting Plate 33 Iron Core 34 Yoke

Claims

An armature having an iron core on which a coil is extrapolated, an electromagnet block coupled to one end of the iron core and spaced apart from the other end of the iron core, an armature disposed opposite to the iron core, the yoke, and a movable contact plate Card block that moves the movable contact by being attracted by the iron core and the yoke, a fixed terminal block having a fixed terminal that is in contact with and away from the movable contact, and a base to which the electromagnet block and the fixed terminal block are made of an insulating material. And a short-circuit means for electrically short-circuiting a magnetic circuit including an iron core and a yoke.

2. The high frequency relay according to claim 1, wherein the short-circuit means is made of a nonmagnetic material having conductivity.

The high-frequency relay according to claim 1 or 2, wherein the short-circuit means is made of an elastic material and is electrically connected to the iron core and the yoke.

The short-circuit means is formed by integrally forming a fixed piece fixed to the base, a first contact portion that contacts the iron core, and a second contact portion that contacts the yoke by a plate-shaped metal material. The high frequency relay according to any one of claims 1 to 3, wherein

The iron core is formed in a rod shape with one end in the longitudinal direction coupled to the yoke, and the short-circuiting means short-circuits the iron core and the yoke at a position that is two-thirds of the total length of the iron core from the end coupled to the yoke. The high frequency relay according to any one of claims 1 to 3, wherein the high frequency relay is used.