JPH03166703A - Electromagnet device - Google Patents
Electromagnet deviceInfo
- Publication number
- JPH03166703A JPH03166703A JP30680189A JP30680189A JPH03166703A JP H03166703 A JPH03166703 A JP H03166703A JP 30680189 A JP30680189 A JP 30680189A JP 30680189 A JP30680189 A JP 30680189A JP H03166703 A JPH03166703 A JP H03166703A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic pole
- coil
- piece
- yoke
- armature
- 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.)
- Pending
Links
- 238000013459 approach Methods 0.000 claims abstract description 11
- 230000035515 penetration Effects 0.000 claims description 12
- 230000004907 flux Effects 0.000 abstract description 10
- 230000005284 excitation Effects 0.000 abstract description 8
- 230000000149 penetrating effect Effects 0.000 abstract description 5
- 210000002105 tongue Anatomy 0.000 description 8
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005281 excited state Effects 0.000 description 3
- 238000000418 atomic force spectrum Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
Landscapes
- Electromagnets (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、スイッチの操作等に適用される電磁石装置
に関するものである．
〔従来の技術〕
第１０図および第１１図に従来例を示す．すなわち、こ
の電磁石装置は、コイル５０と、このコイル５０を貫通
したコイル貫通部５１とコイル５０の側部に位置するヨ
ーク部５２とを各一端側で連続した略Ｕ字形であってコ
イル貫通部５１の先端を磁極部５６としヨーク部５２の
先端を支点部５４としたヨーク５３と、このヨーク５３
の前記支点部５４に回動可能に磁気結合する屈曲部５５
を有し前記磁極部５６に対向する吸引片５７を前記屈曲
部５５の一方に有しかつ前記ヨーク部５２の外側に対向
する作動片５８を前記屈曲部５５の他方に有するＬ字形
のアーマチュア５９と、このアーマチュア５９の前記作
動片５８を収納する収納凹部６０を有するとともに前記
ヨーク５３のヨーク部５２を載置する載置面６ｌを有し
かつ前記ヨーク部５２の両側の舌片６２を係止する係止
孔６３ａを前記収納凹部６０の側壁６３に形威したボデ
ィ６４とを備えている。６５はコイル枠、６６はコイル
端子、７４はストッパである。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an electromagnetic device applied to the operation of a switch, etc. [Prior art] Figures 10 and 11 show conventional examples. That is, this electromagnet device has a substantially U-shape in which a coil 50, a coil penetration portion 51 passing through the coil 50, and a yoke portion 52 located on the side of the coil 50 are continuous at one end side. A yoke 53 with the tip of the yoke 51 as a magnetic pole portion 56 and the tip of the yoke portion 52 as a fulcrum portion 54;
a bent portion 55 rotatably magnetically coupled to the fulcrum portion 54 of the
an L-shaped armature 59 having an attraction piece 57 facing the magnetic pole part 56 on one side of the bending part 55 and having an actuating piece 58 facing the outside of the yoke part 52 on the other side of the bending part 55; It has a storage recess 60 for storing the operating piece 58 of the armature 59, a mounting surface 6l for placing the yoke part 52 of the yoke 53, and engages the tongue pieces 62 on both sides of the yoke part 52. The body 64 has a locking hole 63a formed in the side wall 63 of the storage recess 60. 65 is a coil frame, 66 is a coil terminal, and 74 is a stopper.
また、この電磁石装置を適用した電磁継電器は、ボディ
６４に固定された可動接触子６７および固定接触子６８
を有し、可動接触子６７が作動片５８のカード５８ａに
係合している。６９は可動接点、７０は固定接点、７１
．７２は接点端子、７３は全体を被覆するケースである
。Further, an electromagnetic relay to which this electromagnet device is applied includes a movable contact 67 and a fixed contact 68 fixed to the body 64.
The movable contact 67 is engaged with the card 58a of the actuating piece 58. 69 is a movable contact, 70 is a fixed contact, 71
．． 72 is a contact terminal, and 73 is a case that covers the entire body.
この電磁石装置は、無励磁では第１０図に示すようにカ
ード５８ａのストフバ７４がヨーク部５２に当接してい
る．コイル５０を励磁すると磁束Φがコイル貫通部５ｌ
より空隙Ｈｔ−通リアーマチェア５９の吸引片５７へ流
れ屈曲部５５からヨーク５３へ戻る。その際コイル貫通
部５ｌの磁極部５６と吸引片５７との空隙が小さくなる
ようにアーマチュア５９に吸引力が１幼く。In this electromagnet device, when not energized, the stiffener 74 of the card 58a is in contact with the yoke portion 52, as shown in FIG. When the coil 50 is excited, magnetic flux Φ flows through the coil penetrating portion 5l.
The air flows through the gap Ht to the suction piece 57 of the rear armchair 59 and returns to the yoke 53 from the bent portion 55 . At this time, the attraction force on the armature 59 is decreased by 1 so that the gap between the magnetic pole part 56 of the coil penetration part 5l and the attraction piece 57 becomes smaller.
この電磁石装置は、アーマチュア５９の吸引力を調整す
る場合、磁極部５６の対向面積を変えることにより目的
に応じた吸引力を得ることができる，たとえば磁極部５
６の対向面積を小さくすると、第１２図の励磁吸引力曲
線Ｑ１のように吸引片５７が磁極部５６に近づいたとこ
ろで大きな吸引力を得ることができ、また対向面積を大
きくすると励磁吸引力曲線Ｑ２のように吸引片５７と磁
極部５６が離れたところで大きな吸引力が得ることがで
きる。When adjusting the attractive force of the armature 59, this electromagnetic device can obtain the attractive force according to the purpose by changing the facing area of the magnetic pole part 56.
If the facing area of 6 is made small, a large attractive force can be obtained when the attracting piece 57 approaches the magnetic pole part 56, as shown in the excitation attractive force curve Q1 in FIG. A large attraction force can be obtained when the attraction piece 57 and the magnetic pole part 56 are separated as shown in Q2.
ところが、アーマチュア５９のほぼ全ストロークにおい
て、吸引力を大きくすることができない．そのため、特
性Ｑ１では始動時に吸引力かばね負荷Ｑ８の負荷力力よ
り小さくなり動作しなかったり、特性Ｑ２では終端付近
で吸引力かばね負荷より小さくなり動作が止まったりす
る等の不良が出やすい．
したがって、この発明の目的は、ほぼ全ストロークにお
いて大きな吸引力を得ることができる電磁石装置を提供
することである。However, the suction force cannot be increased during almost the entire stroke of the armature 59. Therefore, with characteristic Q1, failures tend to occur, such as when the suction force becomes smaller than the load force of the spring load Q8 at the time of starting, and it does not operate, and with characteristic Q2, the suction force becomes smaller than the spring load near the end, and the operation stops. Therefore, an object of the present invention is to provide an electromagnetic device that can obtain a large attraction force over almost the entire stroke.
この発明のｉｉ磁石装置は、コイルと、このコイルを貫
通したコイル貫通部を有し前記コイル貫通部の先端を磁
極部としたヨークと、このヨークの前記磁極部に対向す
る吸引片を有するアーマチュアと、前記磁極部および吸
引片のいずれか一方に設けられて前記吸引片が前記磁極
部に接近した際に前記吸引片を前記磁極部に吸引させる
永久磁石とを備えたものである．
〔作用〕
この発明の構戒によれば、無励磁では吸引片が磁極部か
ら離れているため、永久磁石の磁束が吸引片に到達せず
吸引片に吸引力が働かない．コイルを励磁するとアーマ
チェアの吸引片をヨークの磁極部に吸引し、アーマチェ
アは動作する．この場合、吸引片が磁極部に接近するに
つれて永久磁石の磁束が空隙を通して吸引片に流れるた
め、励磁吸引力と独立して、吸引片を磁極部に吸引する
力が増大する。このため、効率を向上できアーマチュア
のほぼ全ストロークにおける吸引力の増大できる。The ii magnet device of the present invention includes a coil, a yoke having a coil penetration portion passing through the coil and a magnetic pole portion at the tip of the coil penetration portion, and an armature having an attraction piece facing the magnetic pole portion of the yoke. and a permanent magnet provided on either one of the magnetic pole part and the attraction piece to attract the attraction piece to the magnetic pole part when the attraction piece approaches the magnetic pole part. [Function] According to the structure of this invention, in the absence of excitation, the attraction piece is separated from the magnetic pole part, so the magnetic flux of the permanent magnet does not reach the attraction piece, and no attraction force is exerted on the attraction piece. When the coil is energized, the suction piece of the armchair is attracted to the magnetic pole part of the yoke, and the armchair operates. In this case, as the attraction piece approaches the magnetic pole part, the magnetic flux of the permanent magnet flows to the attraction piece through the gap, so the force that attracts the attraction piece to the magnetic pole part increases independently of the excitation attraction force. Therefore, the efficiency can be improved and the suction force can be increased over almost the entire stroke of the armature.
この発明の第１の実施例を適用した電磁継電器を第１図
ないし第５図に基づいて説明する．すなわち、この電磁
石装置は、コイルｌと、ヨーク２と、アーマチュア３と
、永久磁石３８とを有する．コイル１は、コイル枠５に
巻装されている。コイル枠５はその端部の両側に溝３９
を形成し、コイル端末処理部６を一端部に形威したコイ
ル端子７を挿着している。An electromagnetic relay to which a first embodiment of the present invention is applied will be explained based on FIGS. 1 to 5. That is, this electromagnetic device includes a coil 1, a yoke 2, an armature 3, and a permanent magnet 38. The coil 1 is wound around a coil frame 5. The coil frame 5 has grooves 39 on both sides of its ends.
A coil terminal 7 having a coil terminal processing portion 6 formed at one end thereof is inserted therein.
ヨーク２は、コイルｌを貫通したコイル貫通部８とコイ
ル１の側部に位置するヨーク部９とを各一端側で連続し
た略Ｕ字形であってコイル貫通部８の先端を磁極部ｌ５
としヨーク部９の先端を支点部ｌ３としている．ヨーク
２は磁性体で形威され、コイル貫通部８は角棒状の鉄心
を実施例とし、磁極部１５はつば状に形威して表面積を
大きくしている．ヨーク部９は平板をＬ字形に折曲して
なり、ヨーク部９の支点部ｌ３側の両側に係止舌片１０
を突設し支点部ｌ３と反対側の結合側端部に結合孔１１
を形成し、コイル貫通部８の結合側端部ｌ２を嵌若しか
しめ等により固着することにより磁気結合しＵ字形に形
威している．またヨーク部９の係止舌片１０は仮幅方向
の両側に複数形成され、しかも板厚の略半分程度の薄さ
にプレス加工している．
アーマチュア３は、ヨーク２の支点部ｌ３に回動可能に
磁気結合する屈曲部ｌ４を有し磁極部ｌ５に対向する吸
引片ｌ６を屈曲部ｌ４の一方に有しかつヨーク部９の外
側に対向する作動片ｌ７を屈曲部１４の他方に有するＬ
字形に形或されている。The yoke 2 has a substantially U-shape in which a coil penetration part 8 passing through the coil l and a yoke part 9 located on the side of the coil 1 are continuous at one end, and the tip of the coil penetration part 8 is connected to a magnetic pole part l5.
The tip of the yoke portion 9 is used as a fulcrum portion l3. The yoke 2 is made of a magnetic material, the coil penetration part 8 is made of a rectangular bar-shaped iron core, and the magnetic pole part 15 is shaped like a brim to increase the surface area. The yoke portion 9 is formed by bending a flat plate into an L shape, and has locking tongue pieces 10 on both sides of the fulcrum portion l3 side of the yoke portion 9.
A coupling hole 11 is provided protrudingly at the coupling side end opposite to the fulcrum portion l3.
The coupling side end l2 of the coil penetrating portion 8 is fixed by fitting or caulking, thereby magnetically coupling and forming a U-shape. Further, a plurality of locking tongues 10 of the yoke portion 9 are formed on both sides in the temporary width direction, and are pressed to be as thin as approximately half the thickness of the plate. The armature 3 has a bent portion l4 rotatably magnetically coupled to the fulcrum portion l3 of the yoke 2, and has an attraction piece l6 on one side of the bent portion l4 that faces the magnetic pole portion l5 and faces the outside of the yoke portion 9. L having an actuating piece l7 on the other side of the bending part 14
It is shaped like a letter.
アーマチュア３は磁性体で形威され、吸引片ｌ６は仮幅
が広く、また作動片１７は先端部にカード１８を固定し
、カード１８の先端に係合突起１９を突設している。４
６はストッパである。なお、このアーマチュア３の復帰
付勢力は後述の可動接触子２６のばね力によって付与さ
れる。The armature 3 is made of a magnetic material, the suction piece l6 has a wide temporary width, and the actuating piece 17 has a card 18 fixed to its tip, and an engagement protrusion 19 protruding from the tip of the card 18. 4
6 is a stopper. Note that the return urging force of the armature 3 is applied by a spring force of a movable contactor 26, which will be described later.
永久磁石３８は、磁極部１５のアーマチュア３の作動片
１７と反対側の端部すなわちアーマチュア３の回動中心
となる屈曲部１４から離れた位置に形威された凹み４０
に取付けられている。また永久磁石３８の磁極Ｎ，Ｓの
着磁方向はアーマチュア３の回動方向と同一である。The permanent magnet 38 has a recess 40 formed at the end of the magnetic pole portion 15 opposite to the operating piece 17 of the armature 3, that is, at a position away from the bent portion 14 that is the center of rotation of the armature 3.
installed on. Further, the direction of magnetization of the magnetic poles N and S of the permanent magnet 38 is the same as the direction of rotation of the armature 3.
ボディ４は、アーマチュア３の作動片１７を収納する収
納凹部２０を有するとともに係止舌片１０が係止する係
止孔２２を収納凹部２０の側壁２１に形成している。こ
のボデイ４は収納凹部２０の端部にアーマチュア３の屈
曲部ｌ４の外側を支持できる支持凹部２３を形威してい
る。側壁２ｌの係止孔２２と側壁２ｌの上端部との間の
部分はヨーク部９を押し込むことにより簡単に係止舌片
１０を係止孔２２に係止できるように、係止舌片１０が
摺動するテーバのガイド面２４を形成している．ボディ
４は、また電磁継電器を構成するため、接点保持部２５
を有し、仮ばねを実施例とする可動接触子２６の基端部
をボディ４の係止溝２７に圧人して保持し、可動接触子
２６の先端の係合孔２８にカード１８の係合突起１９を
係合している。The body 4 has a storage recess 20 for storing the operating piece 17 of the armature 3, and a locking hole 22 into which the locking tongue 10 locks is formed in a side wall 21 of the storage recess 20. This body 4 has a support recess 23 at the end of the storage recess 20 that can support the outside of the bent portion l4 of the armature 3. A portion between the locking hole 22 of the side wall 2l and the upper end of the side wall 2l is provided with a locking tongue piece 10 so that the locking tongue piece 10 can be easily locked in the locking hole 22 by pushing in the yoke part 9. forms the guide surface 24 of the taber on which it slides. The body 4 also includes a contact holding portion 25 to constitute an electromagnetic relay.
The proximal end of the movable contact 26, which has a temporary spring as an example, is pressed into the locking groove 27 of the body 4 and held, and the card 18 is inserted into the engagement hole 28 at the tip of the movable contact 26. The engaging protrusion 19 is engaged.
また可動接触子２６の基端部に接点端子２９を固着し、
先端側に可動接点３０を固着している．また可動接触子
２６に対向するように、仮ばねを実施例とする固定接触
子３１の基端部をボディ４の係止溝３２に圧人して保持
し、可動接点３０に接離する固定接点３３を先端に固着
し基端に接点端子３４を固着している．３５は第２図に
示すようにボディ４の係合孔３６に係合する舌片、３７
は全体を被覆するケース、４３はシール材である。Further, a contact terminal 29 is fixed to the base end of the movable contactor 26,
A movable contact 30 is fixed on the tip side. In addition, the base end of a fixed contact 31, which is an example of a temporary spring, is held by pressing into the locking groove 32 of the body 4 so as to face the movable contact 26. A contact 33 is fixed at the tip and a contact terminal 34 is fixed at the base end. 35 is a tongue piece 37 that engages with the engagement hole 36 of the body 4 as shown in FIG.
Reference numeral 43 indicates a case that covers the entire body, and 43 a sealing material.
この電磁石装置の組立について、説明する。コイル枠５
にコイル１を巻装し、コイル枠５をコイル貫通部８に通
す．コイル貫通部８の結合側端部ｌ２をヨーク部９の結
合孔ｌ１に結合してヨーク２を形成する．永久磁石３日
を凹み４０に取付ける。一方、ボディ４の係止溝２７，
３２に可動接触子２６の基端部および固定接触子３ｌの
基端部をそれぞれ圧人する。アーマチュア３をボディ４
の収納凹部２０に挿入し、係合突起１９を係合孔２８に
係合するとともに屈曲部１４の外面をボディ４の支持凹
部２３に支持させる。ヨーク２の係止舌片１０を収納凹
部２０に押し込んで係止孔２２に係止する。この状態で
ヨーク２の支点部１３がアーマチュア３の屈曲部１４の
内側に位置する。コイル端子７の中間の屈曲部を板厚方
向に折曲して先端側の幅方向が軸方向に平行となるよう
にする．最後にケース３７を被せる。The assembly of this electromagnet device will be explained. Coil frame 5
The coil 1 is wound around the coil 1, and the coil frame 5 is passed through the coil penetration part 8. The yoke 2 is formed by connecting the coupling side end l2 of the coil penetration part 8 to the coupling hole l1 of the yoke part 9. Attach a permanent magnet to the recess 40. On the other hand, the locking groove 27 of the body 4,
32 to press the base end of the movable contact 26 and the base end of the fixed contact 3l, respectively. armature 3 body 4
is inserted into the storage recess 20 of the body 4, the engagement protrusion 19 is engaged with the engagement hole 28, and the outer surface of the bent portion 14 is supported by the support recess 23 of the body 4. The locking tongue piece 10 of the yoke 2 is pushed into the storage recess 20 and locked in the locking hole 22. In this state, the fulcrum portion 13 of the yoke 2 is located inside the bent portion 14 of the armature 3. The middle bent part of the coil terminal 7 is bent in the plate thickness direction so that the width direction on the tip side is parallel to the axial direction. Finally, cover with case 37.
この電磁石装置は、無励磁では可動接触子２６のばね力
によりアーマチュア３の作動片１７が押圧されて復帰付
勢され、ストッパ４６がヨーク部９に当るため、第４図
に示すように吸引片１６は磁極部１５から離れている。When this electromagnet device is not energized, the spring force of the movable contactor 26 presses the operating piece 17 of the armature 3 and urges it back, and the stopper 46 hits the yoke part 9, so that the suction piece 16 is apart from the magnetic pole part 15.
このとき永久磁石３Ｂの磁力は小さくその磁束Φｍは吸
引片１Ｇにほとんど到達しないので吸引片１６を吸引す
る力はほとんどない．コイル１を励磁すると、第５図に
示すようにコイル貫通部８，ヨーク部９およびアーマチ
ュア３の吸引片１６を閉磁路とする磁束Φが流れるため
、アーマチュア３の吸引片ｌ６をＩＩ部ｌ５に吸引し、
アーマチュア３はヨーク２の支点部１３を支点に回動し
、作動片ｌ７が動作する。At this time, the magnetic force of the permanent magnet 3B is small and its magnetic flux Φm hardly reaches the attraction piece 1G, so there is almost no force to attract the attraction piece 16. When the coil 1 is excited, a magnetic flux Φ flows through the coil penetrating portion 8, the yoke portion 9, and the attraction piece 16 of the armature 3 as a closed magnetic path as shown in FIG. suction,
The armature 3 rotates about the fulcrum portion 13 of the yoke 2, and the operating piece l7 operates.
このとき吸引片１６が磁極部１５に接近するにつれて吸
引片１６に到達する永久磁石３８の磁束Φｍが多くなり
吸引片ｌ６を磁極部１５に吸引する吸引力が増大する。At this time, as the attraction piece 16 approaches the magnetic pole part 15, the magnetic flux Φm of the permanent magnet 38 that reaches the attraction piece 16 increases, and the attraction force that attracts the attraction piece l6 to the magnetic pole part 15 increases.
この電磁石装置の動作により、カード１Ｂを介して可動
接触子２６がばね力に抗して押圧され、可動接点３０が
固定接点３３に接触する。コイル１への通電を断つと前
記励磁がなくなるので可動接点２６のばね力によりアー
マチュア３が支点部１３を支点に復帰回動し、可動接点
３０が固定接点３３から開離する。Due to the operation of this electromagnet device, the movable contact 26 is pressed against the spring force through the card 1B, and the movable contact 30 comes into contact with the fixed contact 33. When the energization to the coil 1 is cut off, the excitation disappears, so the armature 3 returns and rotates around the fulcrum portion 13 due to the spring force of the movable contact 26, and the movable contact 30 separates from the fixed contact 33.
第１２図において、Ｑ４は励磁時にアーマチュア３に加
わる吸引力による特性曲線、Ｑ５は永久磁石３８による
吸引力特性曲線である。この図から明らかなように励磁
時のアーマチュア３の吸引力が従来よりも全体的に大き
くなり、始動側および終端側の双方でいずれもばね負荷
よりも大きく動作不良を起こすおそれがなくなる。なお
、Ｑ６は無励磁の従来例での吸引力曲線であり０を示す
．この実施例は、磁極部１５に吸引片ｌ６が接近する時
に吸引力が作用する永久磁石３８を設けたため、無励磁
では吸引片１６が磁極部１５から離れているので、永久
磁石３８の磁束Φｍが吸引片ｌ６に到達せず吸引力が働
かないが、コイル１を励磁すると吸引片ｌ６が磁極部ｌ
５に接近するにつれて永久磁石３８の磁束Φｍが空隙を
通して吸引片ｌ６に流れるため吸引片１６を磁極部ｌ５
に吸引する力が増大する．このため、全ストロークにお
ける吸引力の増大を図ることができる．この発明の第２
の実施例を第６図ないし第９図に示す。すなわち、この
電磁石装置は、第ｌの実施例において、永久磁石３８を
磁極部ｌ５に代えてアーマチュア３の吸引片ｌ６に設け
たものである．吸引片ｌ６に凹部４５を形威し凹部４５
に永久磁石３８を固定している．
この実施例によれば、第１の実施例と比較して磁極部１
５の加工が容易になり、またアーマチュア３にプレス加
工により容易に凹部４５を形成することができる．その
他は、第ｌの実施例と同様であり、同様な作用効果があ
る．
なお、前記アーマチュア３はＬ字形であったが、平板形
であってもよい．
〔発明の効果〕
この発明の電磁石装置によれば、吸引片および磁極部の
いずれか一方に接近時に吸引力が作用する永久磁石を設
けたため、無励磁では吸引片が磁極部から離れているの
で、永久磁石の磁束が吸引片に到達せず吸引片に吸引力
が働かないが、コイルを励磁すると吸引片が磁極部に接
近するにつれて吸引片を磁極部に吸引する力が増大する
．このため、全ストロークにおける吸引力の増大を図る
ことができるという効果がある．In FIG. 12, Q4 is a characteristic curve due to the attractive force applied to the armature 3 during excitation, and Q5 is a characteristic curve of the attractive force due to the permanent magnet 38. As is clear from this figure, the attraction force of the armature 3 during excitation is larger overall than before, and there is no risk of malfunction occurring on both the starting side and the terminal side, which is greater than the spring load. Note that Q6 is the attraction force curve in the conventional example without excitation and indicates 0. In this embodiment, a permanent magnet 38 is provided which applies an attractive force when the attracting piece l6 approaches the magnetic pole part 15. Therefore, since the attracting piece 16 is separated from the magnetic pole part 15 when not energized, the magnetic flux Φm of the permanent magnet 38 does not reach the attraction piece l6 and the attraction force does not work, but when the coil 1 is energized, the attraction piece l6 moves to the magnetic pole part l.
5, the magnetic flux Φm of the permanent magnet 38 flows through the air gap to the attraction piece l6, so the attraction piece 16 is moved closer to the magnetic pole part l5.
The suction force increases. Therefore, it is possible to increase the suction force during the entire stroke. The second part of this invention
Examples of this are shown in FIGS. 6 to 9. That is, in this electromagnetic device, in the first embodiment, the permanent magnet 38 is provided in the attraction piece l6 of the armature 3 instead of the magnetic pole part l5. A recess 45 is formed in the suction piece l6.
A permanent magnet 38 is fixed to. According to this embodiment, compared to the first embodiment, the magnetic pole portion 1
5 is facilitated, and the recess 45 can be easily formed in the armature 3 by press working. The rest is the same as the first embodiment, and has the same effects. In addition, although the armature 3 is L-shaped, it may be flat plate-shaped. [Effects of the Invention] According to the electromagnet device of the present invention, a permanent magnet is provided on either the attracting piece or the magnetic pole part, which applies an attractive force when approaching, so that the attracting piece is separated from the magnetic pole part when not energized. , the magnetic flux of the permanent magnet does not reach the attraction piece and no attraction force is exerted on the attraction piece, but when the coil is excited, as the attraction piece approaches the magnetic pole part, the force that attracts the attraction piece to the magnetic pole part increases. This has the effect of increasing the suction force throughout the entire stroke.
第１図はこの発明の第１の実施例を適用した電磁継電器
の断面図、第２図はその縦断面図、第３図は分解斜視図
、第４図は無励磁の状態の要部断面図、第５図は励磁状
態の要部断面図、第６図は第２の実施例の断面図、第７
ＴＩ！Ｊはその分解斜視図、第８図はその無励磁状態の
要部断面図、第９図は励磁状態の要部断面図、第ｌＯ図
は従来例の部分断面図、第１１図は分解斜視図、第１２
図はアーマチェアのストロークに対する吸引力およびば
ね負荷の特性図である．
１・・・コイル、２・・・ヨーク、３・・・アーマチェ
ア、８・・・コイル貫通部、ｌ５・・・磁極部、１６・
・・吸引片、３８・・・永久磁石
第
６
図
２
１０
図
第
１２
図Fig. 1 is a cross-sectional view of an electromagnetic relay to which the first embodiment of the present invention is applied, Fig. 2 is a longitudinal cross-sectional view thereof, Fig. 3 is an exploded perspective view, and Fig. 4 is a cross-section of essential parts in a non-excited state. 5 is a cross-sectional view of the main part in the excited state, FIG. 6 is a cross-sectional view of the second embodiment, and FIG.
TI! J is an exploded perspective view of the same, FIG. 8 is a sectional view of a main part in a non-excited state, FIG. 9 is a sectional view of a main part in an energized state, FIG. 1O is a partial sectional view of a conventional example, and FIG. Figure, 12th
The figure shows the characteristics of the suction force and spring load with respect to the stroke of the armchair. DESCRIPTION OF SYMBOLS 1... Coil, 2... Yoke, 3... Armchair, 8... Coil penetration part, l5... Magnetic pole part, 16...
...Attraction piece, 38...Permanent magnet No. 6 Fig. 2 Fig. 10 Fig. 12
Claims (1)
前記コイル貫通部の先端を磁極部としたヨークと、この
ヨークの前記磁極部に対向する吸引片を有するアーマチ
ュアと、前記磁極部および吸引片のいずれか一方に設け
られて前記吸引片が前記磁極部に接近した際に前記吸引
片を前記磁極部に吸引させる永久磁石とを備えた電磁石
装置。a coil; a yoke having a coil penetration portion passing through the coil and with the tip of the coil penetration portion serving as a magnetic pole; an armature having an attraction piece facing the magnetic pole portion of the yoke; and the magnetic pole portion and the attraction piece. An electromagnetic device comprising: a permanent magnet provided on either one of the magnets to attract the attracting piece to the magnetic pole when the attracting piece approaches the magnetic pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30680189A JPH03166703A (en) | 1989-11-27 | 1989-11-27 | Electromagnet device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30680189A JPH03166703A (en) | 1989-11-27 | 1989-11-27 | Electromagnet device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03166703A true JPH03166703A (en) | 1991-07-18 |
Family
ID=17961422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30680189A Pending JPH03166703A (en) | 1989-11-27 | 1989-11-27 | Electromagnet device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03166703A (en) |
-
1989
- 1989-11-27 JP JP30680189A patent/JPH03166703A/en active Pending
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