EP0795186B1 - Commutateur electromagnetique - Google Patents

Commutateur electromagnetique Download PDF

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Publication number
EP0795186B1
EP0795186B1 EP95936948A EP95936948A EP0795186B1 EP 0795186 B1 EP0795186 B1 EP 0795186B1 EP 95936948 A EP95936948 A EP 95936948A EP 95936948 A EP95936948 A EP 95936948A EP 0795186 B1 EP0795186 B1 EP 0795186B1
Authority
EP
European Patent Office
Prior art keywords
contact
switching device
electromagnetic switching
armature
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
EP95936948A
Other languages
German (de)
English (en)
Other versions
EP0795186A1 (fr
Inventor
Peter Donhauser
Ralph-Ronald GÖBEL
Gerhard SCHRÖTHER
Norbert SÖRGEL
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 EP0795186A1 publication Critical patent/EP0795186A1/fr
Application granted granted Critical
Publication of EP0795186B1 publication Critical patent/EP0795186B1/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
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
    • H01H50/648—Driving arrangements between movable part of magnetic circuit and contact intermediate part being rigidly combined with armature

Definitions

  • the invention relates to an electromagnetic Switching device that has a contact arrangement with a contact slide, a magnetic drive that has a bobbin, at least one coil and one with the contact slide in operative connection has standing anchor, and one for displacement of the contact slide pivotable about a bearing point Includes lever.
  • Such an electromagnetic switching device is from the DE-PS 37 43 122 known. It has a magnetic drive two coils each wound on a bobbin, one permanent magnets arranged between them, one a central one Drill hole in the coil body and in the permanent magnet and reciprocable in the axial direction of the coils Lifting anchors and two over the outside of the coil formers running yoke plates.
  • the lifting anchor is on a coaxial attached to the spool guide rod, the ends of which are released from the two yoke surfaces Openings runs.
  • the reciprocating movement of the lifting anchor is controlled by two bellcranks transferred to the contact slide.
  • For swiveling Storage of the bellcranks around swivel axes serve on the spool projected guide parts between which the lower yoke plate is inserted and the recesses in push through the bellcranks.
  • Each bellcrank is in both Directions along the swivel axis.
  • a leaf spring works with its free end on the through the recess in the bell crank protruding end portion of the contact slide and clamps it in its end position in the de-energized state the coil.
  • the invention has for its object an electromagnetic Switchgear of the type mentioned above with one for the Assembly simple structure, in particular of the magnetic drive and the actuation of the contact slide. Another one The goal is to improve the magnetic drive. This The object is achieved by the switching device with the Features solved according to claim 1.
  • the electromagnetic switching device shown in the drawing is housed in a housing 10.
  • a housing 10 In the in FIG 1,2 area of the housing 10 shown below are several Switching chambers formed, each of which are aligned with each other arranged fixed contacts 11 contains.
  • 3 shows that the fixed contacts 11 to one side solder pins 12 and on the other side have plug connections 13, which are assembled together by the wall of the housing 10 Protrude condition.
  • the solder pins 12 are used for insertion into a circuit board, not shown, while the Plug connections 13 are provided for further connections.
  • a contact slide 14 is with several via contact pressure springs 15 supported bridge contacts 16, each with work together a pair of aligned fixed contacts 11.
  • the electromagnetic Switching device shows in the ON position, are the fixed contacts 11 so arranged and the movable bridge contacts 16 biased so that they have a total of two normally closed contacts with double break and three make contacts with double break form.
  • a magnetic drive housed It includes a coil 18 a coil former 17, a core 19 and a yoke 20 Soft iron, a permanent magnet 21 and a flux plate 22.
  • the Core 19 is rod-shaped with a round or angular cross section formed and connected to the coil 17,18.
  • the exemplary embodiment is the core 19 in the coil former 17 stored centrally.
  • the core 19 is on both sides of the Coil body 17 on the flanges 23,24. With the on The yoke 20 is connected to the flange 23 projecting end of the core 19.
  • the yoke 20 is shaped to form a space parallel to the longitudinal extension of the coil 17.18 runs.
  • the yoke 20 is designed as a bent sheet metal, that on the facing away from the connection to the core 1 End has an end face 25 which with the flange 24 of the Coil body 17 is approximately aligned.
  • the gap is the disc-shaped permanent magnet 21 with a first 27 and a second pole face 28 and the flux plate 22 housed, the yoke on the first pole face 27 20 with its surface facing the coil 17, 18 and on the the second pole face 28 the flux plate 22 abuts.
  • the permanent magnet 21 forms with the yoke 20 and the flux plate 22 as Pole shoes a horseshoe-shaped magnet system, which by the Flußblech 22 formed leg at its end an edge surface 29 has.
  • the holder of the yoke 20, the permanent magnet 21 and the flow plate 22 takes place in a plastic carrier 39.
  • the end of the protruding from the flange 24 of the bobbin 17 Kerns 19 is widened in a cone shape, thereby increasing the size Contact surface 30 for creating a hinged anchor 31 (FIG 4) created is.
  • can also be used as core 19 Use a rivet at one end of enlarged contact surface 30.
  • the hinged anchor 31 has a plate-shaped area 32 a contact surface 33 on which one with the contact slide 14 engaging web 34 connects (see FIG 4).
  • the hinged anchor 31 has a first stamp 35 (see FIG. 5) for contact with the edge surface 29 of the flow plate 22 and with a second embossing 36 for abutment on the end face 25 of the yoke 20 provided with the currentless coil 18, i.e.
  • the hinged anchor 31 is on the narrow sides in the area the first embossing 35 with recesses 37 (see FIG 4).
  • the contact surface 30 on the core 19 and the edge surface 29 on the flow plate 22 are preferably aligned with one another (see FIG. 1).
  • the End face 25 on the yoke 20 for the installation of the hinged anchor 31 coil 18 through which no current flows is opposite the imaginary one Connection line between the contact surface 30 and the Edge surface 29 of the flux plate 22 is set back in the direction of the coil 18.
  • the hinged armature 31 With coil 18 carrying current, i.e. in the ON position of the Switching device according to FIG 1, the hinged armature 31 is in a row the magnetic force of the coil 18 with its contact surface 33 the contact surface 30 of the core 19 and is still above its embossing 35 through the edge surface 29 of the flow plate 22 held. In this position there is between the others Embossing 36 of the hinged anchor 31 and the end face 25 of the Yokes 20 a space.
  • the hinged anchor 31 In the OFF position of the switching device 2, in which the hinged anchor 31 exclusively held by the magnetic force of the permanent magnet 20,21,22 is, the hinged anchor 31 tilts through the embossing 35 formed edge, the contact surfaces 30,33 from each other be separated and the hinged anchor 31 with its through the further embossing 36 formed oblique surface to the End face 25 of the yoke 20 creates.
  • the hinged anchor 31 works here as a lever that moves the contact slide 14.
  • the electromagnetic switching device described is a for the PCB mounting suitable mini contactor, its drive is supported by a permanent magnet.
  • a permanent magnet In addition to the in 1,2 shown monostable version is also a bistable Execution possible in which the two stable Switch positions can be achieved by reversing the coil current are.
  • the structure is particularly cheap Position of the permanent magnet marked in the iron circle, which at the same time also allows a compact design.
  • the difference to other known magnet systems can in the present Bracket of the hinged anchor dispensed with an anchor pressure spring will.

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

Claims (10)

  1. Appareil de coupure électromagnétique, comprenant un dispositif de contact comportant un curseur (14) de contact un dispositif (17,18,19,20,21,22,31) d'entraínement magnétique, qui comporte une armature (17) de bobine, au moins une bobine (18) et un induit en liaison active avec le curseur (14) de contact, et un levier de renvoi servant à déplacer le curseur (14) de contact et basculant par rapport à un point d'appui, caractérisé en ce que l'induit est réalisé en bascule (31), qui sert à déplacer le curseur (14) de contact et qui, lorsqu'il n'y a pas de courant, maintient, à l'aide d'un système magnétique muni d'un aimant (21) permanent, le curseur (14) de contact en la position d'ouverture du dispositif de contact, et en ce que l'aimant (21) permanent est monté dans le circuit du flux magnétique principal du dispositif (17,18,19,20,21,22,31) d'entraínement magnétique de manière à supporter l'action de force du dispositif d'entraínement magnétique pour le changement de position de l'induit (31) à l'état fermé de l'appareil de coupure.
  2. Appareil de coupure électromagnétique suivant la revendication 1, caractérisé en ce que le système magnétique muni de l'aimant (21) permanent est réalisé en forme de fer à cheval.
  3. Appareil de coupure électromagnétique suivant la revendication 1 ou 2, caractérisé en ce que le système magnétique en forme de fer à cheval est formé par une première branche servant de partie d'une culasse (20) et par une tôle (22) de flux servant de deuxième branche et en ce que l'aimant (21) permanent réalisé en forme de disque vient en contact avec la première branche par sa première surface (27) polaire et avec la tôle (22) de flux par sa deuxième surface (28) polaire.
  4. Appareil de coupure électromagnétique suivant l'une des revendications précédentes, caractérisé en ce que la bascule (31) est réalisée de manière plane.
  5. Appareil de coupure électromagnétique suivant l'une des revendications précédentes, caractérisé en ce que le point d'appui comporte deux surfaces (33,35) de contact formant une arête de basculement.
  6. Appareil électromagnétique suivant l'une des revendications précédentes, caractérisé en ce que l'induit (31) est, lorsqu'il ne passe pas de courant, en contact par sa surface (35) de contact avec une surface (29) frontale de la tôle (22) de flux.
  7. Appareil de coupure électromagnétique suivant l'une des revendications précédentes, caractérisé en ce que l'induit (31) comporte une pièce (32) en forme de plaquette qui comprend la surface (33) de contact et à laquelle fait suite une barrette (34) qui est en prise avec le curseur (14) de contact, la pièce (31) en forme de plaquette étant munie d'une empreinte formant la deuxième surface (35) de contact.
  8. Appareil de coupure électromagnétique suivant l'une des revendications précédentes, caractérisé en ce que la pièce (31) en forme de plaquette est munie dans la zone de la surface (35) de contact d'évidements (37) latéraux, dans lesquels rentrent des bras (38) faisant saillie de part et d'autre de la surface (29) frontale.
  9. Appareil de coupure électromagnétique suivant l'une des revendications précédentes, caractérisé en ce qu'il est monté fixe de manière centrale dans l'armature (17) de bobine un noyau (19) comportant une première surface (30) de contact pour le contact de l'induit (31), et en ce que la première surface (30) de contact et la surface (29) frontale sont en saillie par rapport à la face frontale de l'armature (17) de bobine tournée vers l'induit (31) et sont alignées l'une sur l'autre et en ce qu'une surface (25) frontale ménagée sur la culasse (20) et servant au contact de l'induit (31) lorsqu'il ne passe pas de courant dans la bobine (18) est, par rapport à la ligne de liaison imaginaire entre la première surface (30) de contact et la surface (29) frontale de la tôle (22) de flux, décalée en arrière dans la direction de la bobine (18).
  10. Appareil de coupure électromagnétique suivant la revendication 9. caractérisé en ce qu'il est prévu un rivet (19) comme noyau.
EP95936948A 1994-11-30 1995-11-22 Commutateur electromagnetique Expired - Lifetime EP0795186B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4442674 1994-11-30
DE4442674 1994-11-30
PCT/DE1995/001627 WO1996017366A1 (fr) 1994-11-30 1995-11-22 Commutateur electromagnetique

Publications (2)

Publication Number Publication Date
EP0795186A1 EP0795186A1 (fr) 1997-09-17
EP0795186B1 true EP0795186B1 (fr) 1998-06-17

Family

ID=6534571

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95936948A Expired - Lifetime EP0795186B1 (fr) 1994-11-30 1995-11-22 Commutateur electromagnetique

Country Status (3)

Country Link
EP (1) EP0795186B1 (fr)
DE (1) DE59502621D1 (fr)
WO (1) WO1996017366A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004060370A1 (de) * 2004-12-15 2006-07-06 Tyco Electronics Austria Gmbh Elektromagnetisches Relais
CN107895676B (zh) * 2017-12-15 2020-11-20 中艺银舟新能源汽车(北京)有限公司 多触头电极集成高稳定磁保持继电器
CN107958813B (zh) * 2017-12-26 2020-11-10 尼普顿电器（昆山）有限公司 一种电磁驱动装置及电磁继电器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH227014A (de) * 1942-05-14 1943-05-15 Oerlikon Maschf Elektrisches Steuerschütz.
DE1165752B (de) * 1961-03-09 1964-03-19 Kupfer Asbest Co Elektromagnetisches Relais
DE3743122C1 (de) * 1987-12-18 1989-02-16 Sds Relais Ag Elektromagnetisches Schaltgeraet
JPH0758606B2 (ja) * 1989-03-24 1995-06-21 三菱電機株式会社 電磁接触器

Also Published As

Publication number Publication date
DE59502621D1 (de) 1998-07-23
EP0795186A1 (fr) 1997-09-17
WO1996017366A1 (fr) 1996-06-06

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