EP0308819B1 - Relais électromagnétique - Google Patents

Relais électromagnétique Download PDF

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Publication number
EP0308819B1
EP0308819B1 EP88115141A EP88115141A EP0308819B1 EP 0308819 B1 EP0308819 B1 EP 0308819B1 EP 88115141 A EP88115141 A EP 88115141A EP 88115141 A EP88115141 A EP 88115141A EP 0308819 B1 EP0308819 B1 EP 0308819B1
Authority
EP
European Patent Office
Prior art keywords
armature
contact
core
limb
coil
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.)
Expired - Lifetime
Application number
EP88115141A
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German (de)
English (en)
Other versions
EP0308819A2 (fr
EP0308819A3 (en
Inventor
Klaus Dipl.-Ing. Lueneburger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0308819A2 publication Critical patent/EP0308819A2/fr
Publication of EP0308819A3 publication Critical patent/EP0308819A3/de
Application granted granted Critical
Publication of EP0308819B1 publication Critical patent/EP0308819B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/026—Details concerning isolation between driving and switching circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/548—Contact arrangements for miniaturised relays

Definitions

  • the invention relates to an electromagnetic relay with a base body that has at least one flat bottom side, a coil arranged on the base body with its axis parallel to the bottom side, an angled core with at least two mutually perpendicular legs, all in a common plane parallel to the bottom side lie, and with an also lying in the plane parallel to the bottom armature, which is pivotally mounted on the free end of one of the core legs and forms a working air gap with the free end of another core leg, and with a contact arrangement which has at least one movable contact spring and at least has a fixed mating contact element, each of which is firmly clamped with an end section and connected to a connecting element anchored in the base body.
  • the invention relates to a miniaturized relay which is capable of switching even higher voltages, in particular mains voltage.
  • EP-A-0 202 651 describes a mains voltage relay which essentially corresponds to the design mentioned at the beginning.
  • the armature is arranged there within the coil, while the magnetic circuit outside the coil is closed via a yoke.
  • the contact spring is actuated in the above-mentioned manner in a direction transverse to its longitudinal extent, so that the contact stroke cannot be significantly greater than the armature stroke.
  • a relay of the type mentioned is also known from EP-A-63 487.
  • the movable contact spring is fastened with an end section in a slot of a base body attachment.
  • the actuation of the contact spring also takes place transversely to the longitudinal extent of the spring, at its free end, so that the contact stroke of the contact piece closer to the clamping point is smaller than the stroke of the actuating slide.
  • the object of the invention is to provide a miniaturized relay of the type mentioned for switching high voltages, in which despite the miniaturization, a large contact distance can be achieved even with a relatively small armature stroke.
  • the relay should be simple and easy to manufacture and assemble.
  • the dielectric strength between the contact arrangement and the coil should also be ensured in a simple manner in this relay.
  • the armature is mounted on the free end of the first core leg, and its free end forms the working air gap with the free end of a core leg lying outside the coil
  • the contact spring carries at least one contact piece on a central section and is connected at its other end section to the free end of the armature in such a way that the spring is stressed in its longitudinal direction essentially by the armature movement and that the contacting central section is thereby more or less bent.
  • the coil, the core and the armature enclose an essentially rectangular contact chamber on the base body, in which the contact elements are arranged to save space. Additional exemplary embodiments and developments of the invention are specified in the subclaims.
  • the relay shown in FIGS. 1 to 3 has a base body 1, a coil 2, a core 3, an armature 4 and contact elements 5, 6 and 7.
  • the base body 1 has a base 11 and a circumferential side wall 12 , so that a box-shaped housing for the functional parts of the relay is formed in this way.
  • This base body is made of insulating plastic material in a conventional manner, for example by pressing in the mold or by injection molding.
  • the base body 1 contains partition walls 13 perpendicular to the floor for fastening parts and for ensuring insulation between metallic parts of the relay.
  • the bottom 11 has openings 14 for Recording and fastening of connection elements for contacts and coil ends.
  • the side walls 12 have a bearing web 15 and a stop 16 for the armature 4th
  • the electromagnetic system comprises a coil 2 with a coil body 21 which carries a winding 22; the coil former 21 also has extensions 23 in a flange region, in which connection pins are anchored and connected to the corresponding ends of the winding 22.
  • the coil is shown as being completely embedded in insulating material, this insulating material forming a sheath 25 which can be obtained, for example, by extrusion coating.
  • the insulation between the coil winding 22 and the other metallic parts of the relay, for example the contact elements can also be achieved in other conventional ways.
  • the coil could be inserted into a preformed cap or a coil housing made of insulating material.
  • the base body has the partition walls 13 described above.
  • the connecting pins 24 are bent or cranked below the coil, so that they fit into a predetermined connection grid.
  • the ferromagnetic core 3 has essentially three legs, a first core leg 31 which is arranged axially inside the coil, a second core leg 32 which extends outside the coil at right angles to the first core leg, and a third core leg 33 which in turn extends at right angles extends to the second core leg and parallel to the first core leg and also has a certain distance from the coil.
  • the first core leg forms a bearing surface 34 for a corresponding bearing section 34a of the armature 4.
  • the bearing surface 34 is drawn as flat. In practice it could they are also designed, for example, in a curved manner in order to keep the magnetic flux transition constant during the switching.
  • the third core leg 33 has a free end, which serves as a pole face 35 and faces the pole face 44 at the free end of the armature 4.
  • the armature 4 is essentially elongated or bar-shaped. Its first end 41 is slightly embossed or cranked to form a bearing section 41 a which can be pivotably supported on the bearing surface 34 of the core leg 31, and the armature is secured against wandering away in its bearing position by the bearing web 15 of the base body 1.
  • the end 42 of the armature 4 has a short angled arm 43 which forms a movable pole face 44 opposite the pole face 35 of the core. A working air gap 36 is thus formed between the pole faces 35 and 44.
  • a slot 45 is formed which receives one end of the contact spring 7. However, this slot could also be provided without the arm 43 being bent.
  • the contact arrangement comprises a first fixed mating contact element 5, which carries a normally closed contact piece 51 on an upwardly bent section 52.
  • the upwardly bent section 52 is carried by a central section 53 which lies flat on the bottom 11 of the base body 1.
  • a second mating contact element 6 has a working contact piece 61 which is fastened to a resilient section 62, the resilient section 62 being produced from a leaf spring and being fastened to the second mating contact element 6 in a conventional manner, for example by riveting or welding.
  • a middle section 63 is arranged parallel to the base 11 of the base body and rests thereon.
  • Each of the two counter-contact elements 5 and 6 has a connection element 54 and 64, which is integrally formed on the associated contact element.
  • the movable part of the contact arrangement is formed by the contact spring 7, which carries a leaf spring 71 with contact pieces 72 and 73 on the two opposite sides of its central section 71a, in order in this way to form a working and a normally closed contact with the corresponding mating contact pieces 51 and 61 .
  • the contact spring 7 has a connection element 74 which is connected to the leaf spring in a conventional manner, for example by riveting or welding.
  • the relay has a cover 8, which is shown in the form of a plate in FIG.
  • This lid can be connected to the upper edge 17 of the side walls 12 of the base body 1 by means of adhesive or by ultrasonic welding or in any other suitable way.
  • the cover 8 can also have another shape with which it can be attached to the base body 1 and connected to it with a seal, if necessary.
  • the assembly of the relay according to FIG 1 to 3 will now be described in detail.
  • the core is inserted with its first core leg 31 into an axial opening in the coil.
  • the unit of coil and core thus obtained is inserted into the base body, the core legs 32 and 33 being clamped between the side walls 12 and the partition walls 13 of the base body 1.
  • the contact elements are fastened by inserting the connection elements 54, 64 and 74 into corresponding openings 14 in the base body.
  • the armature 4 is then inserted into the space between the coil and the side walls 12 of the base body. With this step, the free end 75 of the contact spring 7 is also inserted into the slot 45 of the armature.
  • the contact elements, in particular the second counter-contact element 6, can be adjusted by bending, for example by bending on the section 65.
  • the relay is then placed on the cover 8 Base body 1 completed, the gap between the base body and cover being sealed as required.
  • FIGS. 2 and 3. 2 shows the relay in the idle state when the coil is not energized.
  • the contact spring 71 can relax at least partially and strives to stretch, pressing the armature 4 into its rest position against the stop 16 of the base body.
  • the contact piece 72 is in contact with the contact piece 51, whereby a normally closed contact is formed.
  • the contact spring 71 is compressed and bent in its longitudinal direction by the armature movement, as a result of which it closes the working contact between the contact pieces 73 and 61. This is the position shown in FIG. 3.
  • FIG. 1 Modified exemplary embodiments are shown in the further FIG.
  • the base body and the coil are only indicated schematically. In all of these embodiments, however, these parts are designed essentially as in the embodiment of FIG. 1, at most modified to adapt to different shapes of the core, the armature or the contact elements.
  • a core 31 in this case comprises a first core leg 131, which is arranged within the coil 2, and a second core leg 132, which extends at right angles to the first core leg 131, specifically outside the coil.
  • An anchor 140 has a first anchor arm 141 with a shape similar to that of anchor 4 in FIGS. 1 to 3 and a second anchor arm 142 which is at right angles to one another the first anchor arm 141 and extends parallel to the first core leg 131.
  • a short bent arm 143 is provided at the free end of the second armature arm 142 in order to form an enlarged working air gap 136 with respect to the second core leg 132.
  • the parts of the core and the armature lying outside the coil form a rectangular space together with the coil in this example, in order to form a contact chamber 9 in this way.
  • a main advantage of this design arises from the fact that the armature length of the relay can have the longest possible extent within the relay volume, thereby obtaining the greatest possible stroke of the free armature end, while at the same time achieving the greatest possible distance between the switching contacts.
  • a deflection of the spring in its central section is generated at least partially in its longitudinal direction, which is greater than the armature stroke.
  • the contact arrangement also has a design which differs from the first described example.
  • the contact spring 170 consists of two spring sections 171 and 172, which have a fork-shaped design. These two spring portions are joined together at one end by welding or other suitable means, thereby forming a pointed end 175 which carries contact pieces 173 and 174 on the two opposite side surfaces.
  • This pointed end 175 of the contact spring is arranged between the fixed mating contact elements 150 and 160 with the contact pieces 151 and 161, respectively, in such a way that a normally closed contact and a working contact with the contact spring 170 are formed.
  • the contact spring 170 can be made from two pieces as described above. However, it is also possible to form them from a leaf spring piece according to FIG. 6 with two slots 176 and 177.
  • the three stripes in the shape of a comb are connected together so that they carry the pointed end 175 and the contact pieces 173 and 174 at the connecting end.
  • the middle strip forms the spring section 172, while the two outer strips form the spring section 171, which carries the switching current between the connection element 178 and the contact pieces 173 and 174.
  • the contact spring section 172 can preferably be fastened to the armature arm 143 as shown in FIGS. 7 and 8, wherein insulation between the armature and the contact spring is also ensured.
  • a plastic rivet 10 is inserted with its molded-on pin 101 into a hole 144 in the armature arm 143.
  • the contact spring section 172 has an opening 179, which is wider than the rear pin 102 of the plastic rivet 10.
  • the opening 179 receives the rear pin 102 and can then still be aligned by sliding in the longitudinal direction or adjusted.
  • the spring is adjusted, the rear pin 102 of the plastic rivet is deformed by heat generated, for example, by an ultrasound device, and in this way the spring portion 172 is attached to the armature arm 143, as shown in FIG.
  • the relay shown in FIG. 9 has essentially the same structure of the magnet system as in the arrangement of FIG. 4. Therefore, the corresponding parts are also provided with the same reference numerals. With regard to these parts, reference is made to the description of FIG. 4. In deviation from the relay according to FIG. 4, the embodiment of FIG. 9 has a modified contact arrangement, which will now be described below.
  • a first fixed mating contact element 250 is in the Base body 1 anchored in a similar manner to the counter-contact element 5.
  • This first mating contact element 250 carries a contact piece 251 on its section 252 which is bent upwards vertically, in order to form a working contact.
  • a second mating contact element 260 is also anchored in the base body 1 in a manner similar to the mating contact element 160 in FIG. 4.
  • This mating contact element 260 has a contact piece 261 on its bent section 262, so as to form a normally closed contact.
  • the contact pieces 251 and 261 face each other and form a contact distance in which a central section 271 of a contact spring 270 is arranged.
  • This middle section 271 carries contact pieces 272 and 273 on its two side surfaces in order in this way to form the working or rest contact with the opposing contact pieces 251 and 261, respectively.
  • the contact spring 270 has an approximately rectangular shape, which is approximately adapted to the inside of the contact chamber formed by the coil 2, the core leg 132 and the armature legs 141 and 142 (it should be mentioned that because of the metallic parts, the inside of the contact chamber is partially replaced by additional ones Partitions 13 are formed).
  • the contact spring 270 which is shown in the stretched state in FIG. 10, is connected with its first end section 274 to a connecting element 275 and with a second end section 276 to the armature arm 143. For example, it can be connected to the anchor in the same way as shown in FIGS. 4, 7 and 8.
  • FIGS. 11 and 12 which each show schematic top views, show two further possible embodiments, the contact chamber being outside the arrangement of the core and armature.
  • the insulation between the contact elements and the armature and the core can be achieved in a simpler manner, but the armature stroke may become somewhat shorter than in the previous exemplary embodiments if the same overall size of the relay is used.
  • the relay shown in FIG. 11 has a base body 410 with side walls 412, which could also be modified to match the function and the parts of the relay.
  • a coil 420 with a shape similar to the coil 2 in FIG. 1 is arranged on or in the base body 410, and the core 430 is arranged with a first leg 431 inside the coil 420, while a second core leg 432 is perpendicular to the first core leg 431 extends outside the coil.
  • An essentially L-shaped armature 440 is pivotably mounted with a first arm 441 on a free end 434 of the core 430.
  • a second arm 442 of armature 440 forms a working air gap 436 with the second core leg 432.
  • FIG. 11 shows the armature in the actuated state and that all parts shown there are only shown schematically. The details of the anchor, the bearing and other parts can be easily supplemented by a specialist.
  • a contact chamber 490 is formed on the base body 410.
  • two fixed counter-contact elements 450 and 460 and a contact spring 470 are provided, which are similar in shape and function to the contact elements 150, 160 and 170 in the embodiment of FIG. 4. Minor modifications can easily be carried out by a person skilled in the art.
  • Additional partition walls for improving the insulation between the metallic parts of the relay can also be provided in accordance with the principles and the basic ideas of the parts described and shown above.
  • FIG. 5 A further modification of the relay is shown in FIG.
  • a coil 520 with a core 530 and an armature 540 is arranged on a base body 510.
  • the core 530 has a first core leg 531, which is arranged in the coil, and a second Core leg 532, which extends at right angles to it outside the coil.
  • the essentially L-shaped armature is pivotably mounted with a first arm 541 on the free end of the first core arm 531, while the second arm 542 forms a working air gap 536.
  • the second core leg has an extension or a short bent arm 533.
  • a contact chamber 590 is formed on the base body 510.
  • a contact arrangement similar to that shown in FIG. 2 is provided, which comprises two fixed mating contact elements 550 and 560 and a contact spring 570, the latter being actuated by the armature in a manner similar to the contact spring 7 by the armature 4 in the first described embodiment.
  • a person skilled in the art could carry out suitable modifications of the contact parts and of the other functional elements of the relay.
  • suitable insulation between the arrangement of the coil and core on the one hand and the contact arrangement could be carried out by using suitable insulating or partition walls on the base body 510.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)

Claims (13)

  1. Relais électromagnétique présentant les particularités suivantes :
    a) un corps de base (1; 410; 510) posséde au moins une face de fond plate (11);
    b) une bobine (2; 420; 520) est disposée sur le corps de base de telle sorte que son axe est parallèle à la face de fond;
    c) un noyau coudé (3; 130; 430; 530) possède au moins deux branches perpendiculaires l'une à l'autre, qui sont toutes situées dans un plan commun parallèle à la face de fond, une première branche (31; 131; 431; 531) étant disposée axialement à l'intérieur de la bobine, et une seconde branche (32; 132; 432; 532) s'étendant à l'extérieur de la bobine perpendiculairement à la première branche, tandis qu'au moins la première branche possède une extrémité libre;
    d) une armature (4; 140; 440; 540) s'étend également dans un plan parallèle à la face de fond, et est supportée, de manière à pouvoir basculer, sur l'extrémité libre de l'une des branches du noyau et forme, avec l'extrémité libre d'une autre branche du noyau, un entrefer de travail, et
    e) un dispositif de contact possède au moins un ressort de contact mobile (7; 170; 270; 470; 570) et au moins un élément de contact antagoniste fixe (5, 6; 150, 160; 250, 260; 450, 460; 550, 560), qui sont serrés de façon fixe respectivement par une section d'extrémité (74; 171; 274) et sont reliés à un élément de raccordement (54; 64; 74) ancré dans le corps de base,
    caractérisé par les particularités supplémentaires suivantes :
    f) l'armature (4; 140; 440; 540) est supportée, au niveau de l'extrémité libre de la première branche (31; 131; 431; 531) du noyau, et son extrémité libre forme un entrefer de travail (36; 136; 436; 536) avec l'extrémité libre d'une branche (33; 32; 432; 532) du noyau, située à l'extérieur de la bobine, et
    g) le ressort de contact (7; 170; 270; 470; 570) porte, dans une section médiane (71a; 175; 271), au moins une pièce de contact et est relié par son autre section d'extrémité (75. 172; 276) à l'extrémité libre de l'armature de telle sorte que le ressort est contraint essentiellement dans sa direction longitudinale par le mouvement de l'armature, et que de ce fait la section médiane, qui établit le contact, fléchit plus ou moins.
  2. Relais selon la revendication 1, caractérisé en ce que le noyau (3) possède une troisième branche (33) perpendiculaire à la seconde branche et parallèle à la première branche, l'entrefer de travail (44) étant formé entre l'armature (4) et la troisième branche du noyau (33), que l'armature (4) possède une forme essentiellement allongée, et
    que la bobine (2), les seconde et troisième branches (30, 33) du noyau et l'armature (4) déterminent, sur le corps de base (1), un espace de contact (9) sensiblement rectangulaire, dans lequel sont disposés les éléments de contact (5, 6, 7).
  3. Relais selon la revendication 1, caractérisé par le fait que l'armature (140) est réalisée en forme de L, un premier bras (141) de l'armature étant supporté par la première branche (131) du noyau et un second bras (142) de l'armature s'étendant sensiblement parallèlement à la première branche (131) du noyau, à l'extérieur de la bobine, tandis que l'entrefer de travail (136) est formé entre la seconde branche (132) du noyau et le second bras (142) de l'armature, et que la bobine (2), la seconde branche (132) du noyau et l'armature (140) délimitent, sur le corps de base (1), une chambre de contact (9) sensiblement rectangulaire, dans laquelle sont disposés les éléments de contact (150, 160, 170; 250, 260, 270).
  4. Relais selon la revendication 1, caractérisé en ce que l'armature en forme de L (440) est montée, au moyen d'un premier bras (441), sur la première branche (141) du noyau, que le second bras (142) de l'armature, qui est approximativement perpendiculaire au premier bras de l'armature, s'étend sensiblement parallèlement à la première branche (431) du noyau à côté de la bobine, les extrémités libres du second bras de l'armature et de la seconde branche du noyau formant l'entrefer de travail (436), et que le corps de base (410) forme un prolongement dans une direction perpendiculaire à l'axe de la bobine, au-delà du second bras (442) de l'armature, prolongement dans lequel est formée une chambre de contact (490) qui contient le dispositif de contact (450, 460, 470).
  5. Relais selon la revendication 1, caractérisé par le fait que l'armature en forme de L (540) est supportée, par son premier bras (541), sur la première branche (531) du noyau,
    que le second bras (442) de l'armature s'étend sensiblement perpendiculaire au premier bras (541) de l'armature et parallèlement à la première branche (531) du noyau à côté de la bobine, les extrémités libres du second bras (542) de l'armature et de la seconde branche (532) du noyau formant l'entrefer de travail (536), et que le corps de base forme dans la direction de l'axe de la bobine, au-delà de la seconde branche (532) du noyau un prolongement, dans lequel est formée une chambre de contact (590) qui contient le dispositif de contact (550, 560, 570).
  6. Relais selon la revendication 2 ou 4, caractérisé par le fait que le ressort de contact en forme d'arc de cercle (7; 570) est disposé en diagonale dans la chambre de contact (9; 590) et est serré, par ses extrémités, entre son élément de raccordement (74) et l'armature (4; 540) de telle sorte que lorsque l'armature est à l'état de repos, le ressort de contact est moins cintré et que lorsque l'armature est à l'état attiré, le ressort de contact est plus cintré.
  7. Relais selon la revendication 3 ou 5, caractérisé par le fait que le ressort de contact (170; 470) possède une forme en fourche comportant une section médiane en pointe (175) et des sections d'extrémité (171, 172) approximativement parallèle, cette section médiane (175) portant des pièces de contact (173, 174) disposées latéralement, et que les deux sections d'extrémité (171, 172) sont reliées à un élément de raccordement ou à l'armature.
  8. Relais selon la revendication 3, caractérisé par le fait que le ressort de contact (270) s'étend approximativement le long des parois intérieures de la chambre de contact (9), auquel cas sa première section d'extrémité (274) est reliée, sur un côté du corps de base, à proximité de la seconde branche (132) du noyau, à l'élément de raccordement associé (275), sa section médiane (271) est située, sur le côté opposé du corps de base, à proximité du premier bras (141) de l'armature entre deux éléments de contact antagonistes (250, 260), et sa seconde section d'extrémité (276) s'étend approximativement parallèlement au bras (142) de l'armature et est reliée, au niveau de son extrémité libre, à ce bras d'armature.
  9. Relais selon la revendication 7 ou 8, caractérisé par le fait que la seconde section d'extrémité (172; 276) du ressort de contact (170; 270) est couplée, au moyen d'un rivet isolant en matière plastique (10), à l'armature (140).
  10. Relais selon l'une des revendications 1 à 9, caractérisé par le fait qu'il est prévu deux éléments de contact antagonistes (5, 6), qui sont situés en vis-à-vis l'un de l'autre et enserrent la section médiane du ressort de contact (7) et parmi lesquels l'un est rigide et l'autre (6) est au moins partiellement élastique, et
    que, lorsque l'armature (4) est dans son état de repos, la section médiane (71a) du ressort de contact (7) touche l'élément de contact antagoniste rigide (5) et que, lorsque l'armature est dans son état attiré, la section médiane touche l'élément de contact antagoniste élastique (6).
  11. Relais selon l'une des revendications 1 à 10, caractérisé par le fait que le corps de base (1; 410; 510) possède des parois latérales (10) perpendiculaires à la face de fond et qui forment un boîtier avec la face de fond (11) et un couvercle (8).
  12. Relais selon l'une des revendications 1 à 11, caractérisé par le fait que le corps de base (1; 410; 510) possède des parois de séparation supplémentaires (13) et/ou des parties saillantes supplémentaires (15, 16) servant à la fixation et à l'isolation d'une bobine d'un noyau et d'éléments de contact.
  13. Relais selon l'une des revendications 1 à 12, caractérisé par le fait que des butées (15, 16) pour l'armature (4) sont formées sur le corps de base (1).
EP88115141A 1987-09-24 1988-09-15 Relais électromagnétique Expired - Lifetime EP0308819B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/100,693 US4792776A (en) 1987-09-24 1987-09-24 Miniaturized electromagnetic relay for switching high voltages
US100693 1993-07-30

Publications (3)

Publication Number Publication Date
EP0308819A2 EP0308819A2 (fr) 1989-03-29
EP0308819A3 EP0308819A3 (en) 1990-07-18
EP0308819B1 true EP0308819B1 (fr) 1994-03-23

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EP88115141A Expired - Lifetime EP0308819B1 (fr) 1987-09-24 1988-09-15 Relais électromagnétique

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US (1) US4792776A (fr)
EP (1) EP0308819B1 (fr)
JP (1) JPH01102828A (fr)
DE (1) DE3888611D1 (fr)

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EP1300865A4 (fr) 2000-07-13 2005-03-16 Mitsubishi Electric Corp Interrupteur
JP2014165152A (ja) * 2013-02-27 2014-09-08 Fujitsu Component Ltd 電磁継電器
DE102016207199A1 (de) * 2016-04-27 2017-11-02 Zf Friedrichshafen Ag Magnetaktor mit einem Spulenkörper als Anschlag für einen Anker sowie Ventil und Klauenkupplung mit einem solchen Magnetaktor
DE102018109864B4 (de) * 2018-04-24 2021-09-02 Phoenix Contact Gmbh & Co. Kg Relais

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* Cited by examiner, † Cited by third party
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JPS5760633A (en) * 1980-09-26 1982-04-12 Fujitsu Ltd Solenoid relay
JPS57168152U (fr) * 1981-04-17 1982-10-22
DE8208152U1 (de) * 1982-03-23 1982-09-23 Eberle Anlagen KG, 8500 Nürnberg Elektromagnetisches Relais
US4689587A (en) * 1985-05-22 1987-08-25 Siemens Aktiengesellschaft Electromagnetic relay
US4720694A (en) * 1985-05-22 1988-01-19 Siemens Aktiengesellschaft Electromagnetic relay

Also Published As

Publication number Publication date
EP0308819A2 (fr) 1989-03-29
US4792776A (en) 1988-12-20
DE3888611D1 (de) 1994-04-28
JPH01102828A (ja) 1989-04-20
EP0308819A3 (en) 1990-07-18

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