EP0487786B1 - Relais - Google Patents

Relais Download PDF

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Publication number
EP0487786B1
EP0487786B1 EP90124909A EP90124909A EP0487786B1 EP 0487786 B1 EP0487786 B1 EP 0487786B1 EP 90124909 A EP90124909 A EP 90124909A EP 90124909 A EP90124909 A EP 90124909A EP 0487786 B1 EP0487786 B1 EP 0487786B1
Authority
EP
European Patent Office
Prior art keywords
section
armature
relay according
contact
contact spring
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
EP90124909A
Other languages
German (de)
English (en)
Other versions
EP0487786A3 (en
EP0487786A2 (fr
Inventor
Herbert Dipl.-Ing. Mitschik (Fh)
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 EP0487786A2 publication Critical patent/EP0487786A2/fr
Publication of EP0487786A3 publication Critical patent/EP0487786A3/de
Application granted granted Critical
Publication of EP0487786B1 publication Critical patent/EP0487786B1/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
    • H01H50/64—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

Definitions

  • the invention relates to an electromagnetic relay with a base body, on which an electromagnetic system with a coil, core, yoke and armature is arranged and in which a contact arrangement with at least one mating contact element and at least one movable contact spring is anchored at a distance from the magnet system, the contact spring being one with the or the contact section interacting with the counter-contact elements, has a fastening section anchored in the base body and an actuating section which is connected to an actuating element made of insulation material and transmitting the armature movement to the contact spring.
  • a relay in which the armature and the contact arrangement are attached to the same end of the coil, the armature being located between the coil and the contact arrangement, is known from DE 8701349 U.
  • This relay does not use a slide, so that a smaller design is achieved, but here the contact spring and armature are conductively connected to one another, since the insulation requirements are met by overmolding the winding.
  • the object of the invention is therefore to design a relay of the type mentioned in such a way that the prescribed clearance and creepage distance requirements are met with the smallest possible construction volume, without the coil having to be specially designed.
  • the actuating element has a cap-shaped, funnel-shaped shielding section and a sliding section connected to the armature, the shielding section being slipped over the actuating section of the contact spring.
  • the base body is expediently formed with a base plate forming the connection side and with a U-shaped intermediate wall provided for separating the areas for the magnet system and the contact arrangement, it being possible for this to be integrally formed on the base body.
  • the side wall of the shielding section of the actuating element facing the connection side has an opening, the shielding section being slipped over the actuating section of the contact spring from this side in a direction perpendicular to the base plate.
  • the shielding section does not enclose the actuating section of the contact spring on four sides, but it can nevertheless be designed in such a way that the necessary air and creepage distances are maintained.
  • a possible realization of the connection between the sliding section of the actuating element and the armature can be achieved in that the sliding section is hook-shaped and engages over a pin formed on the free end of the armature.
  • the sliding section in a funnel shape and to place it over a pin formed on the anchor.
  • the actuating element which is formed from a shielding section and a plate-shaped sliding section, in two parts, connecting elements being provided on both parts and on the armature, which enable the shielding section to interact with the sliding section and the sliding section with the armature.
  • a pin is preferably formed on the shielding section and recesses are provided on the sliding section, into which the pin of the shielding section and a pin formed on the free end of the armature engage.
  • recesses it is also possible to provide recesses both on the shielding section and on the armature, into which pins formed on the sliding section engage.
  • the design according to the invention can be used particularly advantageously in a relay in which the armature is attached to the end face of the coil between the coil and the contact arrangement.
  • the plane of movement of the armature of the contact spring and of the actuating element can run both perpendicularly and parallel to the end side.
  • the contact spring is formed with a U-shaped and an L-shaped part, with one leg of the U-shaped part the contact section and the short leg of the L-shaped part the Form fastening section and wherein the other leg of the U-shaped part is connected to the long leg of the L-shaped part and forms the actuating section.
  • a cap is provided with an intermediate wall projecting between the magnet system and the contact arrangement. This partition further increases the insulation between the magnet system and the contact arrangement.
  • projections are provided in the interior of the shielding section, between which the actuating section of the contact spring is mounted, thereby ensuring a secure connection between the armature and the contact spring.
  • the relay shown in Figures 1 and 2 has a base body 1 forming the connection side, on which a magnet system 2 and a contact arrangement 7 are arranged.
  • the magnet system 2 is formed with a coil 3, a core 4, an angular yoke 5 and an armature 6 fastened to the yoke 5 by means of a spring 22, the armature 6 being arranged on the end face in front of the coil between the coil 3 and the contact arrangement 7.
  • the contact arrangement 7 consists of two mating contact elements 8a and 8b and a movable contact spring 9, which are anchored in the base body 1 in slots or openings and guided to the connection side.
  • the contact spring 9 in turn consists of a contact section 9a, which in the rest position shown is in contact with the mating contact element 8a, a fastening section 9b anchored in the base body 1 and an actuating section 9c.
  • a sliding section 10b is formed on this actuating section 10a, which is hook-shaped and engages over a pin 12 formed on the free end of the armature 6, whereby the movement of the armature 6 is transmitted to the contact spring 9.
  • a U-shaped intermediate wall 11 is formed on the base body 1, which serves to isolate the contact arrangement 7 from the magnet system 2 and over which the sliding section 10b of the actuating element 10 projects.
  • the shielding section 10a of the actuating element 10 is open on its side facing the connection side and is placed over the actuation section 9c in a direction perpendicular to the connection side.
  • knobs 10c and 10d are formed, between which the actuating section 9c of the contact spring 9 is held.
  • a cap 20 provided with intermediate walls 21a, 21b and 21c is placed on the base body 1 with the magnet system 2 and the contact arrangement 7 mounted.
  • the intermediate walls 21a and 21b have the task of shielding the mating contact elements 8a and 8b against the fastening section 9b and the actuating section 9c of the contact spring 9, while the intermediate wall 21c together with the actuating element 10 and the U-shaped intermediate wall 11 for isolating the actuating section 9c from the armature 6 serves. In this way, all clearances and creepage distances between the contact arrangement 7 and the magnet system 2 are large enough to meet the VDE requirements.
  • the relay shown in Figures 3 and 4 realizes a further possible embodiment of the relay according to the invention, the plane in which the armature 6 and the contact spring 9 move, is perpendicular to the connection side and thus opposite to that shown in Figures 1 and 2 Relay is rotated by 90 °. Parts having the same effect are provided here with the same reference symbols as in FIGS. 1 and 2.
  • a magnet system 2, consisting of a coil 3, a core 4, a yoke 5 and an armature 6, is also arranged on a base body 1 here.
  • the armature 6 is provided at its free end with a pin 17 which projects into the funnel-shaped opening of the sliding section 23 of an actuating element 10.
  • the actuating element 10 also has a cap-shaped, funnel-shaped shielding section 10a which is slipped over the actuating section 9c of a contact spring 9.
  • the intermediate wall 24b is shown broken in Figure 4; it runs above the contact arrangement 7 with respect to the connection side, as can be seen in FIG.
  • the U-shaped partition 11 has a lateral recess through which the actuating element 10 can be inserted.
  • FIG. 5 Another possible embodiment of the actuating element 10 is shown in FIG. 5.
  • a funnel-shaped shielding section 13 is slipped over the contact spring 9, on which a pin 15 is formed.
  • This pin 15 protrudes into a recess 16a of a plate-shaped sliding section 14, which has a further recess 16b, in which a pin 17, which is formed on the free end of an armature 6, is inserted.
  • the contact spring 9 is, as in the two embodiments described above, composed of a U-shaped part 19 and an L-shaped part 18, one leg of the U-shaped part the contact portion, the short leg of the L-shaped part the Fastening section and the other leg of the U-shaped part, which is connected to the long leg of the L-shaped part, gives the actuating section.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Electronic Switches (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Seal Device For Vehicle (AREA)
  • Relay Circuits (AREA)
  • Slide Switches (AREA)
  • Medicinal Preparation (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Claims (13)

  1. Relais électromagnétique comportant un corps de base (1) sur lequel est disposé un système électromagnétique (2) comportant une bobine (3), un noyau (4), une culasse (5) et une armature (6) et dans lequel un dispositif de contact (7) comportant au moins un élément de contact antagoniste (8a, 8b) et au moins un ressort de contact mobile (9) sont ancrés à distance du système magnétique (2), le ressort de contact (9) comportant une partie de contact (9a) coopérant avec le ou les éléments de contact antagonistes (8a, 8b), et une partie de fixation (9b) ancrée dans le corps de base (1) et une partie d'actionnement (9c), qui est reliée à un élément d'actionnement (10), qui transmet le déplacement de l'armature au ressort de contact (9) et est réalisée en un matériau isolant, caractérisé par le fait
    que l'élément d'actionnement (10) possède une partie de blindage (10a; 13), qui est réalisée en forme de capuchon et s'ouvre en forme d'entonnoir, et une partie coulissante (10b; 23), qui est reliée à l'armature, la partie de blindage (10a; 13) étant emmanchée par-dessus la partie d'actionnement (9c) du ressort de contact (9).
  2. Relais suivant la revendication 1, caractérisé par le fait que le corps de base (1) est réalisé avec une plaque de fond constituant le côté de raccordement, et avec une paroi intercalaire en forme de U (11), destinée à séparer les zones prévues pour le système magnétique (2) et le dispositif de contact (7).
  3. Relais suivant la revendication 2, caractérisé par le fait que la paroi intermédiaire en forme de U (11) est formée sur le corps de base (1).
  4. Relais suivant l'une des revendications 1 à 3, caractérisé par le fait que la paroi latérale, tournée vers le côté de raccordement, de la partie de blindage (10a) de l'élément d'actionnement (10) possède une ouverture et que la partie de blindage (10a) est emmanchée par-dessus la partie d'actionnement (9c) du ressort de contact (9), dans une direction qui est perpendiculaire à la plaque de fond, à partir de ce côté.
  5. Relais suivant l'une des revendications 1 à 3, caractérisé par le fait que la partie coulissante (23) de l'élément d'actionnement (10) est réalisée en forme de crochet et s'engage par-dessus un téton (12) formé sur l'extrémité libre de l'armature (6).
  6. Relais suivant l'une des revendications 1 à 4, caractérisé par le fait que la partie coulissante (10b) de l'élément d'actionnement (10) est réalisée de manière à s'ouvrir en forme d'entonnoir et est emmanchée par-dessus un téton (17) formé sur l'armature (6).
  7. Relais suivant l'une des revendications 1 à 4, caractérisé par le fait que l'élément d'actionnement (10), qui est constitué par une partie de blindage (13) et une partie coulissante en forme de plaque (14), est réalisé en deux éléments, et que sur les deux parties (13, 14) ainsi que sur l'armature (6) sont prévus des éléments de liaison (15, 16a, 16b, 17), qui permettent une coopération de la partie de blindage (13) avec la partie coulissante (14) ainsi que de la partie coulissante (14) avec l'armature (6).
  8. Relais suivant la revendication 7, caractérisé par le fait qu'un téton (15) est formé sur la partie de blindage (13) et que dans la partie coulissante (14) sont ménagées des ouvertures (16a, 16b), dans lesquelles s'engage le téton (15) de la partie de blindage (13) ainsi qu'un téton (17) formé sur l'extrémité libre de l'armature (6).
  9. Relais suivant l'une des revendications 1 à 8, caractérisé par le fait que le plan, dans lequel se déplacent l'armature (6), le ressort de contact (9) et l'élément d'actionnement (10), est perpendiculaire ou parallèle au côté de raccordement.
  10. Relais suivant l'une des revendications 1 à 9, caractérisé par le fait que l'armature (6) est montée sur la face frontale de la bobine (3) entre cette dernière et le dispositif de contact (7).
  11. Relais suivant l'une des revendications 1 à 10, caractérisé par le fait que le ressort de contact (9) comporte une partie en forme de U (19) et une partie en forme de L (18), une branche de la partie en forme de U (19) constituant la partie de contact (9a), alors que la branche courte de la partie de L (18) ferme la partie de fixation (9b) et que l'autre branche de la partie en forme de U est reliée à la longue branche de la partie en forme de L et forme la partie d'actionnement (9c).
  12. Relais suivant l'une des revendications 1 à 11, caractérisé par le fait qu'il est prévu un capuchon comportant au moins une paroi intermédiaire (21c; 24d) qui s'étend entre le système magnétique (2) et le dispositif de contact (7).
  13. Relais suivant l'une des revendications 1 à 12, caractérisé par le fait qu'à l'intérieur de la section de blindage (10a; 13) sont prévues des parties saillantes (10c, 10d), entre lesquelles est montée la partie d'actionnement (13c) du ressort de contact (9).
EP90124909A 1990-11-29 1990-12-20 Relais Expired - Lifetime EP0487786B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9016264U DE9016264U1 (de) 1990-11-29 1990-11-29 Relais
DE9016264U 1990-11-29

Publications (3)

Publication Number Publication Date
EP0487786A2 EP0487786A2 (fr) 1992-06-03
EP0487786A3 EP0487786A3 (en) 1993-02-24
EP0487786B1 true EP0487786B1 (fr) 1994-11-30

Family

ID=6859834

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90124909A Expired - Lifetime EP0487786B1 (fr) 1990-11-29 1990-12-20 Relais

Country Status (4)

Country Link
EP (1) EP0487786B1 (fr)
AT (1) ATE114869T1 (fr)
DE (2) DE9016264U1 (fr)
PT (1) PT99633B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4115092C3 (de) * 1991-05-08 1999-06-24 Eberle Controls Gmbh Elektromagnetisches Schaltrelais für Leiterplattenmontage
DE9111577U1 (de) * 1991-09-17 1993-01-28 EURO-Matsushita Electric Works AG, 8150 Holzkirchen Elektromagnetisches Relais
DE4226889C2 (de) * 1991-09-17 1994-03-10 Euro Matsushita Electric Works Elektromagnetisches Relais
DE9210790U1 (de) * 1992-08-12 1993-12-16 EURO-Matsushita Electric Works AG, 83607 Holzkirchen Isolierteil für ein elektromagnetisches Relais
EP0815575B1 (fr) * 1995-03-21 1998-09-02 Siemens Aktiengesellschaft Relais electromagnetique
DE19917338C2 (de) * 1999-04-16 2002-05-08 Tyco Electronics Logistics Ag Elektromagnetisches Relais und Verfahren zu dessen Herstellung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2912800C2 (de) * 1979-03-30 1985-04-25 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Relais für hohe Schaltleistungen
DE8701349U1 (de) * 1987-01-28 1988-05-26 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Relais
DE3835118A1 (de) * 1988-10-14 1990-04-19 Siemens Ag Elektromagnetisches relais

Also Published As

Publication number Publication date
EP0487786A3 (en) 1993-02-24
ATE114869T1 (de) 1994-12-15
DE9016264U1 (de) 1991-02-21
EP0487786A2 (fr) 1992-06-03
PT99633B (pt) 1999-02-26
PT99633A (pt) 1993-11-30
DE59007875D1 (de) 1995-01-12

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