JP2000173430A - Electromagnetic relay and its manufacture - Google Patents
Electromagnetic relay and its manufactureInfo
- Publication number
- JP2000173430A JP2000173430A JP10346749A JP34674998A JP2000173430A JP 2000173430 A JP2000173430 A JP 2000173430A JP 10346749 A JP10346749 A JP 10346749A JP 34674998 A JP34674998 A JP 34674998A JP 2000173430 A JP2000173430 A JP 2000173430A
- Authority
- JP
- Japan
- Prior art keywords
- yoke
- electromagnet
- armature
- contact
- amateur
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
- H01H50/641—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement
- H01H50/642—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement intermediate part being generally a slide plate, e.g. a card
Landscapes
- Electromagnets (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電磁継電器及びそ
の製造方法に関するものである。The present invention relates to an electromagnetic relay and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】図５〜図７に従来の電磁継電器の一例を
示す。この電磁継電器は、略中心に鉄芯２が挿着された
コイルボビン３にコイル４が巻設されて成る電磁石１、
電磁石１の一方の磁極部１ａに磁気結合された立ち上げ
片５ａ’並びに立ち上げ片５ａ’の端部から電磁石１の
軸方向に沿って他方の磁極部１ｂ近傍まで延出された横
片５ｂ’が一体に略Ｌ字形に形成されたヨーク５’、電
磁石１の一方の磁極部１ｂに対向し横片５ｂ’の先端部
を支点として回動自在に配設されたアマチュア６、一端
側がヨーク５’の横片５ｂ’に固定されるとともに他端
側がアマチュア６に固定されてアマチュア６を回動自在
に支持するヒンジばね８を具備する電磁石ブロックと、
一端部がアマチュア６の自由端側に固定されてアマチュ
ア６の回動により平行移動するカード７と、一端部にそ
れぞれ固定接点９ａ，１０ａが固着されるとともに固定
接点９ａ，１０ａを対向させるように配設された一対の
固定接点板９，１０と、各固定接点９ａ，１０ａに接離
自在に接触する可動接点１１ａが一端部両面に固着され
カード７の平行移動に応じて揺動する可動接点板１１
と、絶縁性を有する合成樹脂によって形成され一端側に
固定接点板９，１０及び可動接点板１１が配置されると
ともに他端側に上記電磁石ブロックが配置されるベース
１５と、各固定接点板９，１０並びに可動接点板１１と
電気的に接続されベース１５の下面より突出する外部端
子１２と、アマチュア６の下方に配設されコイル４に接
続されたコイル端子１４を支持する合成樹脂製の端子支
持部１３と、外部端子１２並びにコイル端子１４を外部
に突出させるようにして電磁石ブロック及びベース１５
に被着される略箱形のケース１６とを備えている。2. Description of the Related Art FIGS. 5 to 7 show an example of a conventional electromagnetic relay. This electromagnetic relay includes an electromagnet 1 having a coil 4 wound around a coil bobbin 3 in which an iron core 2 is inserted substantially at the center.
A rising piece 5a 'magnetically coupled to one magnetic pole portion 1a of the electromagnet 1 and a horizontal piece 5b extending from the end of the rising piece 5a' to the vicinity of the other magnetic pole portion 1b along the axial direction of the electromagnet 1. A yoke 5 'integrally formed in a substantially L-shape, an armature 6 opposed to one magnetic pole portion 1b of the electromagnet 1 and rotatably disposed around the tip of the horizontal piece 5b' as a fulcrum, and a yoke on one end side An electromagnet block having a hinge spring 8 fixed to the horizontal piece 5b 'of 5' and the other end fixed to the armature 6 to rotatably support the armature 6;
A card 7 whose one end is fixed to the free end side of the armature 6 and moves in parallel by the rotation of the armature 6 is fixed to the fixed contact 9a, 10a at one end and the fixed contact 9a, 10a is opposed to the card. A pair of fixed contact plates 9, 10 and a movable contact 11a, which is in contact with the fixed contacts 9a, 10a so as to be able to come into contact with and separate from the fixed contact 9a, is fixed to one end of both surfaces and swings in accordance with the parallel movement of the card 7. Board 11
And a base 15 formed of an insulating synthetic resin and having fixed contact plates 9 and 10 and a movable contact plate 11 disposed at one end and the electromagnet block disposed at the other end. , 10 and an external terminal 12 electrically connected to the movable contact plate 11 and protruding from the lower surface of the base 15, and a synthetic resin terminal disposed below the armature 6 and supporting the coil terminal 14 connected to the coil 4. The electromagnet block and the base 15 are arranged such that the support portion 13 and the external terminals 12 and the coil terminals 14 are projected outside.
And a substantially box-shaped case 16 attached to the main body.
【０００３】次に上記電磁継電器の動作について説明す
る。まず、コイル端子１４間に電圧が印加されていない
定常時においては、電磁石１による吸引力が作用しない
からアマチュア６が電磁石１の磁極部１ｂから離れた位
置（以下、「定常位置」という。）に保持される。一
方、可動接点板１１は電磁石ブロックに近い側（常閉
側）の固定接点９ａに可動接点１１ａを圧接させるよう
にベース１５に配設されている。よって、アマチュア６
が上記定常位置にあるときには、カード７が図５（ｂ）
における左方へ移動しており、可動接点板１１がカード
７の先端部によって押操作されないために可動接点１１
ａが常閉側の固定接点９ａと接触する状態（以下、「定
常状態」という。）に保持されている。なお、このとき
には弾性を有する材料で形成された可動接点板１１のば
ね力によって可動接点１１ａと固定接点９ａとの接触圧
を得ている。Next, the operation of the electromagnetic relay will be described. First, in a steady state in which no voltage is applied between the coil terminals 14, the armature 6 does not act on the attraction force, so that the armature 6 is separated from the magnetic pole portion 1 b of the electromagnet 1 (hereinafter, referred to as “steady position”). Is held. On the other hand, the movable contact plate 11 is disposed on the base 15 such that the movable contact 11a is pressed against the fixed contact 9a on the side close to the electromagnet block (normally closed side). Therefore, amateur 6
Is in the stationary position, the card 7 is in the position shown in FIG.
, The movable contact plate 11 is not pushed by the tip of the card 7 so that the movable contact
is held in a state of contact with the fixed contact 9a on the normally closed side (hereinafter, referred to as “steady state”). At this time, the contact pressure between the movable contact 11a and the fixed contact 9a is obtained by the spring force of the movable contact plate 11 formed of a material having elasticity.
【０００４】上記定常状態からコイル端子１４間に所定
の（感動電圧以上の）電圧を印加すれば、電磁石１の磁
極部１ｂに吸引されたアマチュア６がヨーク５’の先端
部を支点としてヒンジばね８及び可動接点板１１のばね
力に抗して回動し、電磁石１の磁極部１ｂに吸着する。
すると、アマチュア６の回動によってカード７が図５
（ｂ）における右方へ平行移動し、カード７の先端部で
可動接点板１１を押操作して図５（ｂ）における右方へ
揺動させる。そして、可動接点板１１に固着されている
可動接点１１ａは常閉側の固定接点９ａから離れて他方
（常開側）の固定接点１０ａと接触し、接点が切り換え
られることになる。そして、コイル端子１４間に印加さ
れる電圧が開放電圧以下になると、電磁石１の吸引力か
ら解放されたアマチュア６がヒンジばね８及び可動接点
板１１のばね力によって定常位置に復帰し、カード７に
よる押圧がなくなることで可動接点板１１が定常状態に
復帰し、可動接点１１ａが常開側の固定接点１０ａから
離れて常閉側の固定接点９ａに接触して接点が切り換え
られる。When a predetermined voltage (not less than the impressed voltage) is applied between the coil terminals 14 from the above-mentioned steady state, the armature 6 attracted to the magnetic pole portion 1b of the electromagnet 1 moves the hinge 6 with the tip of the yoke 5 'as a fulcrum. 8 and the movable contact plate 11 rotate against the spring force and are attracted to the magnetic pole portion 1b of the electromagnet 1.
Then, the rotation of the amateur 6 causes the card 7 to move as shown in FIG.
5B, the movable contact plate 11 is pushed by the leading end of the card 7 to swing rightward in FIG. 5B. Then, the movable contact 11a fixed to the movable contact plate 11 separates from the normally closed fixed contact 9a and comes into contact with the other (normally open side) fixed contact 10a, and the contact is switched. When the voltage applied between the coil terminals 14 becomes equal to or less than the open voltage, the armature 6 released from the attractive force of the electromagnet 1 returns to the steady position by the spring force of the hinge spring 8 and the movable contact plate 11, and the card 7 As a result, the movable contact plate 11 returns to the steady state, and the movable contact 11a separates from the normally open fixed contact 10a and comes into contact with the normally closed fixed contact 9a to switch the contact.
【０００５】[0005]
【発明が解決しようとする課題】ところで、上記従来例
の動作時においては、鉄芯２とヨーク５’とアマチュア
６により閉磁路が形成されるのであるが、アマチュア６
の回動支点となるヨーク５’の横片５ｂ’先端部におけ
るアマチュア６とヨーク５’との接触面積が小さいた
め、この接触部分での磁気抵抗が大きくなって電磁石１
のアマチュア６に対する吸引力が低下してしまってい
た。In the operation of the above conventional example, a closed magnetic circuit is formed by the iron core 2, the yoke 5 'and the armature 6.
Since the contact area between the armature 6 and the yoke 5 'at the distal end of the horizontal piece 5b' of the yoke 5 ', which is the rotation fulcrum of the yoke 5', is small, the magnetic resistance at this contact portion increases, and
Had a reduced suction force on the amateur 6.
【０００６】そこで、図８〜図１０に示すようにアマチ
ュア６の回動支点となるヨーク５”の横片５ｂ”の先端
部及びその近傍の厚みを厚くすることでアマチュア６と
の接触面積を拡大して磁気抵抗を低減し、電磁石１の吸
引力の低下を防止するようにした電磁継電器が提案され
ている。[0008] Therefore, as shown in FIGS. 8 to 10, the contact area with the armature 6 is increased by increasing the thickness of the tip of the horizontal piece 5 b ″ of the yoke 5 ″ serving as the pivot point of the armature 6 and the vicinity thereof. An electromagnetic relay has been proposed which is enlarged to reduce the magnetic resistance and prevent a decrease in the attractive force of the electromagnet 1.
【０００７】しかしながら、このようなヨーク５”は均
一な厚みを有する磁性体の板材から製作することができ
ず、端部近傍の厚みを他の部位よりも厚くした所謂段付
け材から製作しなければならないために製造コストの上
昇を招くという問題があった。さらに、上記段付け材の
製作時に板厚寸法の管理が加工上困難であり、ヨーク
５”の厚み寸法がばらついてしまう等の問題があった。However, such a yoke 5 "cannot be manufactured from a magnetic plate having a uniform thickness, and must be manufactured from a so-called stepped material in which the thickness near the end is thicker than other portions. In addition, there is a problem that the manufacturing cost is increased due to the necessity, and it is difficult to control the thickness of the yoke 5 ″ at the time of manufacturing the above-mentioned stepping material, and the thickness of the yoke 5 ″ varies. was there.
【０００８】本発明は上記問題点の解決を目的とするも
のであり、コストの上昇を招くことなくアマチュアに対
する電磁石の吸引力を高めることができる電磁継電器、
並びにヨークの製作時における厚み寸法の管理が容易な
電磁継電器の製造方法を提供しようとするものである。An object of the present invention is to solve the above-mentioned problems, and an electromagnetic relay capable of increasing the attraction force of an electromagnet to an amateur without increasing costs.
Another object of the present invention is to provide a method of manufacturing an electromagnetic relay in which the thickness of the yoke can be easily controlled at the time of manufacturing the yoke.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
に、請求項１の発明は、鉄芯の周りにコイルが巻設され
て成る電磁石と、一端部が電磁石の一方の磁極部と磁気
結合し他端部が電磁石の他方の磁極部近傍まで延出され
たヨークと、ヨークの他端部に回動自在に枢支され電磁
石によって駆動されるアマチュアと、アマチュアの回動
に応じて移動する可動接点と、可動接点に接離自在に接
触する固定接点とを備え、アマチュアの回動支点となる
ヨーク他端部が略Ｌ字形に折曲形成されて成ることを特
徴とし、略Ｌ字形に折曲されることでヨーク他端部のア
マチュアとの接触面積を拡大して電磁石の吸引力を高め
ることができ、しかも、均一な厚み寸法の板材を折曲す
ることでヨークが製作できることからコストの上昇を招
くこともない。In order to achieve the above-mentioned object, according to the present invention, there is provided an electromagnet having a coil wound around an iron core, one end of which has one magnetic pole portion of the electromagnet. A yoke that is coupled and has the other end extending to the vicinity of the other magnetic pole of the electromagnet, an armature rotatably supported by the other end of the yoke and driven by the electromagnet, and moving in accordance with the rotation of the armature A movable contact and a fixed contact that comes into contact with and separate from the movable contact, and the other end of the yoke serving as a fulcrum of the armature is bent and formed into a substantially L-shape. The contact area with the armature at the other end of the yoke can be increased by bending it to increase the attractive force of the electromagnet, and the yoke can be manufactured by bending a plate of uniform thickness. There is no increase in cost.
【００１０】請求項２は、鉄芯の周りにコイルが巻設さ
れて成る電磁石と、一端部が電磁石の一方の磁極部と磁
気結合し他端部が電磁石の他方の磁極部近傍まで延出さ
れたヨークと、ヨークの他端部に回動自在に枢支され電
磁石によって駆動されるアマチュアと、アマチュアの回
動に応じて移動する可動接点と、可動接点に接離自在に
接触する固定接点とを備え、アマチュアの回動支点とな
るヨーク他端部が略Ｌ字形に折曲形成されて成る電磁継
電器の製造方法であって、ヨークを形成する板状の磁性
材料の一端部を曲げ加工した後に当該曲げ部分をシェー
ビング加工することでアマチュアの回動支点となる略Ｌ
字形の端部を形成することを特徴とし、均一の厚み寸法
の板材からヨークを製作することができ、ヨークの製作
時における厚み寸法の管理が容易になる。しかも、シェ
ービング加工によりヨークの曲げ部分を尖らせてヨーク
他端部とアマチュアとの密着度を高め、ヨークとアマチ
ュアとの接触部分における磁気抵抗をさらに低減するこ
とができる。According to a second aspect of the present invention, an electromagnet having a coil wound around an iron core, one end of which is magnetically coupled to one magnetic pole of the electromagnet and the other end extending to near the other magnetic pole of the electromagnet. Armature, an armature rotatably supported at the other end of the yoke and driven by an electromagnet, a movable contact that moves in accordance with the rotation of the armature, and a fixed contact that comes into and out of contact with the movable contact And a method of manufacturing an electromagnetic relay in which the other end of a yoke serving as a fulcrum of rotation of an amateur is bent in a substantially L-shape, wherein one end of a plate-shaped magnetic material forming a yoke is bent. After that, the bent portion is subjected to shaving processing so that the arm becomes a substantially fulcrum L.
The yoke-shaped end portion is formed, and the yoke can be manufactured from a plate material having a uniform thickness, thereby facilitating the management of the thickness at the time of manufacturing the yoke. Moreover, the bent portion of the yoke is sharpened by shaving to increase the degree of adhesion between the other end of the yoke and the amateur, and the magnetic resistance at the contact portion between the yoke and the amateur can be further reduced.
【００１１】[0011]
【発明の実施の形態】以下、図１〜図４を参照して本発
明の一実施形態を説明する。但し、本実施形態の基本的
な構成は従来例と共通であるので、共通する部分につい
ては同一の符号を付して説明を省略する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. However, since the basic configuration of the present embodiment is the same as that of the conventional example, common portions are denoted by the same reference numerals and description thereof is omitted.
【００１２】電磁石ブロックのコイルボビン３はコイル
端子１４を支持する端子支持部１３と合成樹脂により一
体に形成されており、コイルボビン３の略中心には軸方
向に沿って板状の鉄芯２が挿着されている。磁極部１ａ
となる鉄芯２の一端部をヨーク５の立ち上げ片５ａに設
けられた嵌合孔５ｃに挿入してかしめることにより、ヨ
ーク５と鉄芯２が磁気的及び機械的に結合される。The coil bobbin 3 of the electromagnet block is formed integrally with a terminal supporting portion 13 for supporting a coil terminal 14 by a synthetic resin, and a plate-shaped iron core 2 is inserted substantially in the center of the coil bobbin 3 along the axial direction. Is being worn. Magnetic pole part 1a
The yoke 5 and the iron core 2 are magnetically and mechanically coupled by inserting one end of the iron core 2 to be inserted into the fitting hole 5c provided in the rising piece 5a of the yoke 5 and caulking.
【００１３】鉄芯２の他端部には磁極部１ｂとなる鍔２
ａが形成されており、この鍔２ａに対向するように略矩
形板状のアマチュア６がヨーク５の横片５ｂ先端部を支
点として回動自在に配置されている。The other end of the iron core 2 has a flange 2 serving as a magnetic pole portion 1b.
a substantially rectangular plate-shaped armature 6 is arranged so as to face the flange 2a so as to be rotatable about the tip of the horizontal piece 5b of the yoke 5 as a fulcrum.
【００１４】アマチュア６の下端部は、一端側でヨーク
５の横片５ｂに固定されたヒンジばね８の他端側に固定
されており、ヒンジばね８によって電磁石１の磁極部１
ｂから離れた位置でアマチュア６が回動自在に支持され
ている。そして、合成樹脂製のベース１５上面の他端側
の側縁から立設された断面形状略Ｌ字形の保持壁１５ａ
とベース１５上面とで囲まれる凹所１５ｂ内に電磁石ブ
ロックが組み込まれる。ベース１５の他端側には外部端
子１２と一体に形成された固定接点板９，１０並びに可
動接点板１１が配置され、各固定接点９ａ、１０ａに可
動接点１１ａが対向するように固定接点板９，１０と可
動接点板１１がほぼ一列に列設されている。さらに、保
持壁１５ａの固定接点板９，１０及び可動接点板１１側
の端部には凹所１５ｂと固定接点板９，１０及び可動接
点板１１とを隔絶する絶縁壁１５ｃが突設されている。The lower end of the armature 6 is fixed at one end to the other end of a hinge spring 8 fixed to the horizontal piece 5 b of the yoke 5.
The armature 6 is rotatably supported at a position distant from b. Then, a holding wall 15a having a substantially L-shaped cross section and standing upright from the side edge on the other end side of the upper surface of the base 15 made of synthetic resin.
An electromagnet block is incorporated in a recess 15b surrounded by the upper surface and the base 15. On the other end side of the base 15, fixed contact plates 9, 10 and a movable contact plate 11, which are formed integrally with the external terminal 12, are arranged, and the fixed contact plates are arranged such that the movable contact 11a faces the fixed contacts 9a, 10a. The movable contact plates 9 and 10 are arranged substantially in a line. Further, an insulating wall 15c is provided at an end of the holding wall 15a on the side of the fixed contact plates 9, 10 and the movable contact plate 11 so as to separate the recess 15b from the fixed contact plates 9, 10 and the movable contact plate 11. I have.
【００１５】また、アマチュア６の上端部にはカード７
の一端部が係合されている。このカード７は絶縁性を有
する合成樹脂等によって略板状に形成され、上述のよう
に一端部がアマチュア６の上端部に係合されるとともに
他端部に突設された略円錐形の突起７ａが可動接点板１
１の上端に穿孔された挿通孔（図示せず）に挿通されて
いる。さらに、カード７のアマチュア６との係合部近傍
に設けられた孔（図示せず）に、コイルボビン３の端部
上面に突設されたリブ３ａが移動自在に挿通されてカー
ド７の位置決めが為されており、アマチュア６と可動接
点板１１との間に橋架された状態でカード７が電磁石ブ
ロックとともにベース１５の凹所１５ｂ内に組み込まれ
ている。なお、カード７は絶縁壁１５ｃを逃げるように
一部が幅狭に形成されている。A card 7 is provided at the upper end of the amateur 6.
Is engaged at one end. The card 7 is formed in a substantially plate shape by a synthetic resin or the like having an insulating property. As described above, one end is engaged with the upper end of the armature 6 and the substantially conical protrusion protruded from the other end. 7a is the movable contact plate 1
1 is inserted through an insertion hole (not shown) formed in the upper end of the first member 1. Further, a rib 3a protruding from the upper surface of the end of the coil bobbin 3 is movably inserted into a hole (not shown) provided in the vicinity of the engagement portion of the card 7 with the armature 6, so that the positioning of the card 7 can be performed. The card 7 is incorporated in the recess 15b of the base 15 together with the electromagnet block in a state of being bridged between the armature 6 and the movable contact plate 11. Note that the card 7 is partially formed to be narrow so as to escape the insulating wall 15c.
【００１６】而して、アマチュア６はヒンジばね８によ
り電磁石１の磁極部１ｂから離れる向きに付勢されてお
り、コイル端子１４間に電圧が印加されていない定常時
においては、電磁石１による吸引力が作用しないからア
マチュア６が電磁石１の磁極部１ｂから離れた定常位置
に保持されている。なお、定常位置においてはカード７
の上記孔に挿通されたコイルボビン３の突起３ａがスト
ッパの役割を果たしている。ここで、アマチュア６が定
常位置にあるときには、カード７が図５における左方へ
移動しており、可動接点板１１がカード７の先端部によ
って押操作されないために可動接点１１ａが常閉側の固
定接点９ａと接触する定常状態に保持されている。The armature 6 is urged by the hinge spring 8 in a direction away from the magnetic pole portion 1b of the electromagnet 1, and when no voltage is applied between the coil terminals 14, the armature is attracted by the electromagnet 1. Since no force is applied, the armature 6 is held at a steady position away from the magnetic pole portion 1b of the electromagnet 1. In the steady position, the card 7
The projection 3a of the coil bobbin 3 inserted into the hole serves as a stopper. Here, when the armature 6 is at the steady position, the card 7 is moving to the left in FIG. 5 and the movable contact plate 11 is not pushed by the tip of the card 7 so that the movable contact 11a is in the normally closed side. It is maintained in a steady state where it comes into contact with the fixed contact 9a.
【００１７】上記定常状態からコイル端子１４間に感動
電圧以上の電圧を印加すれば、電磁石１の磁極部１ｂに
吸引されたアマチュア６がヨーク５の先端部を支点とし
てヒンジばね８及び可動接点板１１のばね力に抗して回
動し、電磁石１の磁極部１ｂに吸着する。すると、アマ
チュア６の回動によってカード７が図１（ｂ）における
右方へ平行移動し、カード７の先端部で可動接点板１１
を押操作して図１（ｂ）における右方へ揺動させる。そ
して、可動接点板１１に固着されている可動接点１１ａ
は常閉側の固定接点９ａから離れて常開側の固定接点１
０ａと接触し、接点が切り換えられることになる。そし
て、コイル端子１４間に印加される電圧が開放電圧以下
になると、電磁石１の吸引力から解放されたアマチュア
６がヒンジばね８及び可動接点板１１のばね力によって
定常位置に復帰し、カード７による押圧がなくなること
で可動接点板１１が定常状態に復帰し、可動接点１１ａ
が常開側の固定接点１０ａから離れて常閉側の固定接点
９ａに接触して接点が切り換えられる。When a voltage equal to or higher than the impressed voltage is applied between the coil terminals 14 from the steady state, the armature 6 attracted to the magnetic pole portion 1b of the electromagnet 1 uses the tip end of the yoke 5 as a fulcrum to support the hinge spring 8 and the movable contact plate. 11 and is attracted to the magnetic pole portion 1 b of the electromagnet 1. Then, the rotation of the armature 6 causes the card 7 to move parallel to the right in FIG. 1B, and the movable contact plate 11
To swing rightward in FIG. 1B. The movable contact 11a fixed to the movable contact plate 11
Is a fixed contact 1 that is apart from the normally closed fixed contact 9a and is normally opened.
0a, and the contact is switched. When the voltage applied between the coil terminals 14 becomes equal to or lower than the open voltage, the armature 6 released from the attractive force of the electromagnet 1 returns to the steady position by the spring force of the hinge spring 8 and the movable contact plate 11, and the card 7 The movable contact plate 11 returns to the normal state by the pressing by the
Is separated from the fixed contact 10a on the normally open side and contacts the fixed contact 9a on the normally closed side to switch the contact.
【００１８】次に本発明の要旨であるヨーク５の構造に
ついて説明する。本実施形態においては、アマチュア６
の下端部に接触しアマチュア６の回動支点となるヨーク
５の横片５ｂ先端部を略Ｌ字形に形成し、ヨーク５の横
片５ｂ先端部とアマチュア６下端部との接触面積を拡大
している。これにより、ヨーク５とアマチュア６との接
触部分における磁気抵抗を低減してアマチュア６に対す
る電磁石１の吸引力を高めることができる。しかも、こ
のような構造を有するヨーク５は、均一な厚み寸法を有
する板材の先端部を略直角に折曲することで製作するこ
とができ、従来のような段付き材を用いる場合に比較し
てコストの上昇を招くことがないという利点がある。Next, the structure of the yoke 5, which is the gist of the present invention, will be described. In the present embodiment, the amateur 6
The end of the horizontal piece 5b of the yoke 5 which contacts the lower end of the armature 6 and serves as the fulcrum of the armature 6 is formed in a substantially L-shape, and the contact area between the end of the horizontal piece 5b of the yoke 5 and the lower end of the armature 6 is enlarged. ing. Thereby, the magnetic resistance at the contact portion between the yoke 5 and the armature 6 can be reduced, and the attraction force of the electromagnet 1 to the armature 6 can be increased. Moreover, the yoke 5 having such a structure can be manufactured by bending the tip of a plate having a uniform thickness dimension at a substantially right angle, and is compared with a conventional case using a stepped material. There is an advantage that the cost does not increase.
【００１９】ところで、板材を折曲しただけでは、図４
（ａ）に示すようにヨーク５の横片５ｂの曲げ部分が湾
曲しており、アマチュア６と横片５ｂの曲げ部分との間
に隙間ｇが生じて磁気抵抗が増加してしまう虞がある。By the way, only by bending the plate material, FIG.
As shown in (a), the bent portion of the horizontal piece 5b of the yoke 5 is curved, and a gap g is generated between the armature 6 and the bent portion of the horizontal piece 5b, which may increase the magnetic resistance. .
【００２０】そこで、ヨーク５を製作する際に、横片５
ｂの先端部分を略直角に折曲した後、この曲げ部分を所
謂シェービング加工する。これにより、図４（ｂ）に示
すように横片５ｂの曲げ部分を尖らせてアマチュア６と
の密着度を高め、ヨーク５とアマチュア６との接触部分
における磁気抵抗を低減することができる。また、この
ように均一の厚み寸法の板材からヨーク５を製作するこ
とができることから、ヨーク５の製作時における厚み寸
法の管理が容易になるという利点もある。Therefore, when manufacturing the yoke 5, the horizontal pieces 5
After bending the front end portion of b at a substantially right angle, this bent portion is subjected to a so-called shaving process. Thereby, as shown in FIG. 4B, the bent portion of the horizontal piece 5b is sharpened to increase the degree of adhesion to the armature 6, and the magnetic resistance at the contact portion between the yoke 5 and the armature 6 can be reduced. Further, since the yoke 5 can be manufactured from a plate material having a uniform thickness as described above, there is an advantage that the thickness of the yoke 5 can be easily managed when the yoke 5 is manufactured.
【００２１】[0021]
【発明の効果】請求項１の発明は、鉄芯の周りにコイル
が巻設されて成る電磁石と、一端部が電磁石の一方の磁
極部と磁気結合し他端部が電磁石の他方の磁極部近傍ま
で延出されたヨークと、ヨークの他端部に回動自在に枢
支され電磁石によって駆動されるアマチュアと、アマチ
ュアの回動に応じて移動する可動接点と、可動接点に接
離自在に接触する固定接点とを備え、アマチュアの回動
支点となるヨーク他端部が略Ｌ字形に折曲形成されて成
るので、略Ｌ字形に折曲されることでヨーク他端部のア
マチュアとの接触面積を拡大して電磁石の吸引力を高め
ることができ、しかも、均一な厚み寸法の板材を折曲す
ることでヨークが製作できることからコストの上昇を招
くこともないという効果がある。According to the first aspect of the present invention, there is provided an electromagnet having a coil wound around an iron core, one end of which is magnetically coupled to one magnetic pole of the electromagnet and the other end of which is the other magnetic pole of the electromagnet. A yoke extending to the vicinity, an armature rotatably supported by the other end of the yoke and driven by an electromagnet, a movable contact that moves in accordance with the rotation of the armature, and a movable contact that can be freely contacted and separated. A fixed contact that comes into contact with the armature, and the other end of the yoke serving as a pivot point of the armature is formed in a substantially L-shape. The contact area can be increased to increase the attraction force of the electromagnet, and the yoke can be manufactured by bending a plate material having a uniform thickness dimension, so that there is an effect that the cost does not increase.
【００２２】請求項２は、鉄芯の周りにコイルが巻設さ
れて成る電磁石と、一端部が電磁石の一方の磁極部と磁
気結合し他端部が電磁石の他方の磁極部近傍まで延出さ
れたヨークと、ヨークの他端部に回動自在に枢支され電
磁石によって駆動されるアマチュアと、アマチュアの回
動に応じて移動する可動接点と、可動接点に接離自在に
接触する固定接点とを備え、アマチュアの回動支点とな
るヨーク他端部が略Ｌ字形に折曲形成されて成る電磁継
電器の製造方法であって、ヨークを形成する板状の磁性
材料の一端部を曲げ加工した後に当該曲げ部分をシェー
ビング加工することでアマチュアの回動支点となる略Ｌ
字形の端部を形成するので、均一の厚み寸法の板材から
ヨークを製作することができ、ヨークの製作時における
厚み寸法の管理が容易になり、しかも、シェービング加
工によりヨークの曲げ部分を尖らせてヨーク他端部とア
マチュアとの密着度を高め、ヨークとアマチュアとの接
触部分における磁気抵抗をさらに低減することができる
という効果がある。According to a second aspect of the present invention, an electromagnet having a coil wound around an iron core, one end of which is magnetically coupled to one magnetic pole of the electromagnet and the other end extending to near the other magnetic pole of the electromagnet. Armature rotatably supported at the other end of the yoke, driven by an electromagnet, a movable contact that moves in accordance with the rotation of the armature, and a fixed contact that comes into contact with and separates from the movable contact. And a method of manufacturing an electromagnetic relay in which the other end of a yoke serving as a fulcrum of rotation of an amateur is bent in a substantially L-shape, wherein one end of a plate-shaped magnetic material forming a yoke is bent. After that, the bent portion is subjected to shaving processing so that the arm becomes a substantially fulcrum L.
The yoke-shaped end allows the yoke to be manufactured from a plate of uniform thickness, making it easier to control the thickness when manufacturing the yoke, and sharpening the yoke by shaving. Thus, the degree of adhesion between the other end of the yoke and the amateur can be increased, and the magnetic resistance at the contact portion between the yoke and the amateur can be further reduced.
【図１】本発明の実施形態を示し、（ａ）は正面断面
図、（ｂ）は側面断面図である。FIG. 1 shows an embodiment of the present invention, in which (a) is a front sectional view and (b) is a side sectional view.
【図２】（ａ）（ｂ）は同上における一部省略した電磁
石ブロックを異なる方向から見た斜視図である。2 (a) and 2 (b) are perspective views of the electromagnet block of the above, which is partially omitted, as viewed from different directions.
【図３】同上における要部の一部省略した斜視図であ
る。FIG. 3 is a perspective view of the same as above, with some main parts omitted.
【図４】（ａ）（ｂ）は同上を説明するための説明図で
ある。FIGS. 4A and 4B are explanatory diagrams for explaining the above.
【図５】従来例の側面断面図である。FIG. 5 is a side sectional view of a conventional example.
【図６】（ａ）（ｂ）は同上における一部省略した電磁
石ブロックを異なる方向から見た斜視図である。FIGS. 6 (a) and 6 (b) are perspective views of the electromagnet block of the above, which is partially omitted, as viewed from different directions.
【図７】同上における要部の一部省略した斜視図であ
る。FIG. 7 is a perspective view of the same as above, with some main parts omitted.
【図８】他の従来例を示し、（ａ）は正面断面図、
（ｂ）は側面断面図である。FIG. 8 shows another conventional example, in which (a) is a front sectional view,
(B) is a side sectional view.
【図９】（ａ）（ｂ）は同上における一部省略した電磁
石ブロックを異なる方向から見た斜視図である。FIGS. 9 (a) and 9 (b) are perspective views of the electromagnet block of the above, which is partially omitted, as viewed from different directions.
【図１０】同上における要部の一部省略した斜視図であ
る。FIG. 10 is a perspective view of the same as above, with some main parts omitted;
１ 電磁石 ２ 鉄芯 ５ ヨーク ５ｂ 横片 ６ アマチュア ７ カード ９，１０ 固定接点板 ９ａ，１０ａ 固定接点 １１ 可動接点板 １１ａ 可動接点 DESCRIPTION OF SYMBOLS 1 Electromagnet 2 Iron core 5 Yoke 5b Horizontal piece 6 Amateur 7 Card 9,10 Fixed contact plate 9a, 10a Fixed contact 11 Movable contact plate 11a Movable contact
Claims (2)
磁石と、一端部が電磁石の一方の磁極部と磁気結合し他
端部が電磁石の他方の磁極部近傍まで延出されたヨーク
と、ヨークの他端部に回動自在に枢支され電磁石によっ
て駆動されるアマチュアと、アマチュアの回動に応じて
移動する可動接点と、可動接点に接離自在に接触する固
定接点とを備え、アマチュアの回動支点となるヨーク他
端部が略Ｌ字形に折曲形成されて成ることを特徴とする
電磁継電器。1. An electromagnet having a coil wound around an iron core, and a yoke having one end magnetically coupled to one magnetic pole of the electromagnet and the other end extending to near the other magnetic pole of the electromagnet. An armature rotatably supported at the other end of the yoke and driven by an electromagnet; a movable contact that moves in accordance with the rotation of the armature; and a fixed contact that comes into contact with and separates from the movable contact. An electromagnetic relay, characterized in that the other end of the yoke, which is a pivot point of the amateur, is formed in a substantially L-shape.
磁石と、一端部が電磁石の一方の磁極部と磁気結合し他
端部が電磁石の他方の磁極部近傍まで延出されたヨーク
と、ヨークの他端部に回動自在に枢支され電磁石によっ
て駆動されるアマチュアと、アマチュアの回動に応じて
移動する可動接点と、可動接点に接離自在に接触する固
定接点とを備え、アマチュアの回動支点となるヨーク他
端部が略Ｌ字形に折曲形成されて成る電磁継電器の製造
方法であって、ヨークを形成する板状の磁性材料の一端
部を曲げ加工した後に当該曲げ部分をシェービング加工
することでアマチュアの回動支点となる略Ｌ字形の端部
を形成することを特徴とする電磁継電器の製造方法。2. An electromagnet having a coil wound around an iron core, and a yoke having one end magnetically coupled to one magnetic pole portion of the electromagnet and the other end extending to near the other magnetic pole portion of the electromagnet. An armature rotatably supported at the other end of the yoke and driven by an electromagnet; a movable contact that moves in accordance with the rotation of the armature; and a fixed contact that comes into contact with and separates from the movable contact. A method of manufacturing an electromagnetic relay in which the other end of a yoke serving as a rotation fulcrum of an amateur is bent in a substantially L-shape, the method comprising bending one end of a plate-shaped magnetic material forming a yoke, A method for manufacturing an electromagnetic relay, comprising forming a substantially L-shaped end serving as a pivot point of an amateur by shaving a bent portion.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10346749A JP2000173430A (en) | 1998-12-07 | 1998-12-07 | Electromagnetic relay and its manufacture |
| EP99124300A EP1009008B1 (en) | 1998-12-07 | 1999-12-06 | Electromagnetic relay |
| DE69931586T DE69931586T2 (en) | 1998-12-07 | 1999-12-06 | Electromagnetic relay |
| US09/455,323 US6486760B2 (en) | 1998-12-07 | 1999-12-06 | Electromagnetic relay |
| CZ0437799A CZ298202B6 (en) | 1998-12-07 | 1999-12-06 | Electromagnet, electromagnetic relay and method of forming such electromagnetic relay |
| CNB991228669A CN1197096C (en) | 1998-12-07 | 1999-12-07 | Electromagnetic relay |
| KR10-1999-0055345A KR100413578B1 (en) | 1998-12-07 | 1999-12-07 | Electromagnet, electromagnetic relay and method of forming electromagnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10346749A JP2000173430A (en) | 1998-12-07 | 1998-12-07 | Electromagnetic relay and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000173430A true JP2000173430A (en) | 2000-06-23 |
Family
ID=18385560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10346749A Withdrawn JP2000173430A (en) | 1998-12-07 | 1998-12-07 | Electromagnetic relay and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000173430A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008270221A (en) * | 2007-04-24 | 2008-11-06 | Tyco Electronics Austria Gmbh | Magnet system and electrical actuator having this |
-
1998
- 1998-12-07 JP JP10346749A patent/JP2000173430A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008270221A (en) * | 2007-04-24 | 2008-11-06 | Tyco Electronics Austria Gmbh | Magnet system and electrical actuator having this |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20060207 |