EP0795186A1 - Commutateur electromagnetique - Google Patents

Commutateur electromagnetique

Info

Publication number
EP0795186A1
EP0795186A1 EP95936948A EP95936948A EP0795186A1 EP 0795186 A1 EP0795186 A1 EP 0795186A1 EP 95936948 A EP95936948 A EP 95936948A EP 95936948 A EP95936948 A EP 95936948A EP 0795186 A1 EP0795186 A1 EP 0795186A1
Authority
EP
European Patent Office
Prior art keywords
switching device
armature
electromagnetic switching
contact
face
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.)
Granted
Application number
EP95936948A
Other languages
German (de)
English (en)
Other versions
EP0795186B1 (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

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
    • H01H50/648—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 which has a contact arrangement with a contact slide, a magnetic drive which has a coil body, at least one coil and an armature which is operatively connected to the contact slide, and one for displacing the Contact slide includes a pivot lever about a bearing.
  • Such an electromagnetic switching device is known from DE-PS 37 43 122. It has a magnetic drive with two coils each wound on a coil body, a permanent magnet arranged between them, a lifting armature which penetrates a central bore in the coil body and in the permanent magnet and can be moved back and forth in the axial direction of the coils, and two yoke plates which extend over the outer sides of the coil bodies .
  • the lifting armature is fastened on a guide rod running coaxially to the coils, the ends of which extend through openings left free by the two yoke surfaces.
  • a leaf spring acts with its free end on the end section of the contact slide projecting through the recess in the deflection lever and biases it into its end position when the coil is de-energized.
  • the invention has for its object to provide an electromagnetic switching device of the type mentioned above with a simple structure for assembly, in particular the magnetic drive and the actuation of the contact slide. Another goal is to improve the magnetic drive. This object is achieved by the switching device with the features according to claim 1.
  • An advantageous embodiment of the magnet system equipped with the permanent magnet exists if it is designed in the shape of a horseshoe. It is particularly advantageous if this is formed from a first leg as part of a yoke and a flux plate as a second leg and the disk-shaped permanent magnet rests with its first pole face on the first leg and with its second pole face on the flux plate.
  • rocker is flat.
  • FIG. 2 shows a longitudinal section through the switching device according to FIG. 1 in the OFF position
  • FIG. 3 shows a cross section along the line I-I of FIG. 1
  • FIG. 4 shows the top view of a hinged armature of the electromagnetic switching device according to FIG. 1
  • FIG. 5 shows a side view of the hinged anchor according to FIG. 4, 6 shows a flow plate.
  • the electromagnetic switching device shown in the drawing is housed in a housing 10. There are several in the area of the housing 10 shown in FIG. 1.2 below
  • Scarf chambers formed, each of which contains two fixed contacts 11 aligned with one another. From FIG 3 it can be seen that the fixed contacts 11 have solder pins 12 on one side and plug connections 13 on the other side, which protrude through the wall of the housing 10 in the assembled state. 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 provided with a plurality of bridge contacts 16 which are supported by contact pressure springs 15 and which each cooperate with a pair of fixed contacts 11 aligned with one another.
  • the fixed contacts 11 are arranged in such a way and the movable bridge contacts 16 are pretensioned such that they form a total of two normally closed contacts with double interruption and three working contacts with double interruption .
  • a magnetic drive is interrupted in the area of the housing 10 shown in FIG. 1 above. It comprises a coil 18 with a coil body 17, a core 19 and a yoke 20 made of soft iron, a permanent magnet 21 and a flux plate 22.
  • the core 19 is rod-shaped with a round or square cross section and is connected to the coil 17, 18. In the present embodiment, the core 19 is mounted centrally in the bobbin 17. The core 19 protrudes on both sides of the bobbin 17 on the flanges 23, 24.
  • the yoke 20 is connected to the end of the core 19 projecting from the flange 23.
  • the yoke 20 is shaped such that it forms a space parallel to the longitudinal extension of the coil 17.18 runs.
  • the yoke 20 is designed as a bent sheet metal which has an end face 25 at the end facing away from the connection to the core 19, which end face is approximately aligned with the flange 24 of the coil former 17.
  • the disc-shaped permanent magnet 21 with a first 27 and a second pole face 28 and the flux plate 22 are accommodated in the above-mentioned intermediate space, the yoke 20 with its surface facing the coil 17, 18 on the first pole face 27 and the flux plate on the second pole face 28 22 is present.
  • the permanent magnet 21 forms with the yoke 20 and the flux plate 22
  • Pole shoes are a horseshoe-shaped magnet system whose leg formed by the flux plate 22 has an edge surface 29 at its end.
  • the yoke 20, the permanent magnet 21 and the flux plate 22 are held in a plastic carrier 39.
  • the end of the core 19 protruding from the flange 24 of the coil former 17 is widened in a conical shape, as a result of which an enlarged contact surface 30 for creating a hinged armature 31 (FIG. 4) is created.
  • a rivet can advantageously be used as the core 19 with the contact surface 30 enlarged at one end.
  • the hinged anchor 31 has a plate-shaped area 32 with a contact surface 33, which is followed by a web 34 which engages with the contact slide 14: (see FIG. 4).
  • the hinged anchor 31 has a first stamp 35
  • FIG. 5 for bearing against the edge surface 29 of the flux plate 22 and provided with a second embossing 36 for bearing against the end face 25 of the yoke 20 when the coil 18 is de-energized, ie in the OFF position of the switching device shown in FIG. in which the hinged armature 31 is held essentially by the magnetic force of the horseshoe-shaped permanent magnet 20, 21, 22.
  • the hinged armature 31 is on the narrow sides in the area of the first embossing 35 with recesses 37 (see FIG 4) ⁇ see ver.
  • Arms 38 protrude on both sides of the edge surface 29 of the flow plate 22, which engage in the recesses 37 and support the hinged anchor 31 laterally.
  • 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 bears with its contact surface 33 against the contact surface 30 of the core 19 as a result of the magnetic force of the coil 18 and is also held above its embossment 35 by the edge surface 29 of the flux plate 22 . In this position there is a space between the further embossing 36 of the hinged anchor 31 and the end face 25 of the yoke 20. In the OFF position of the switching device according to FIG.
  • the hinged armature 31 in which the hinged armature 31 is held exclusively by the magnetic force of the permanent magnet 20, 21, 22, the hinged armature 31 tilts over the edge formed by the embossing 35, the contact surfaces 30, 33 are separated from one another and the hinged anchor 31, with its oblique surface formed by the further embossing 36, bears against the end face 25 of the yoke 20.
  • the hinged armature 31 works as a deflection lever which pushes the contact slide 14.
  • the electromagnetic switching device described is a mini contactor suitable for printed circuit board assembly, the drive of which is supported by a permanent magnet.
  • a bi-stable version is also possible in which the two stable ones

Landscapes

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

Abstract

L'invention a pour objet de créer un mini-contacteur présentant une structure simplifiant le montage et une commande magnétique amélioré. A cet effet, il est prévu une commande magnétique assistée par un aimant permanent, présentant une bobine fixe (18) et un noyau (19) monté au centre de celle-ci et actionnant, par l'intermédiaire d'une armature (31) agissant comme levier de renvoi, un curseur de contact (14). Lorsque la bobine (18) n'est pas parcourue par un courant, l'armature (31) est essentiellement maintenue par un aimant permanent (21) sur lequel s'applique une culasse (20), en tant que pièce polaire, sur l'une des faces polaires (27), une tôle conductrice (22) s'appliquant sur l'autre face polaire (28). Lorsque la bobine (18) est parcourue par un courant, il se forme un champ magnétique qui fait basculer l'armature (31) dans la position "en circuit" représentée.
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 true EP0795186A1 (fr) 1997-09-17
EP0795186B1 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9617366A1 *

Also Published As

Publication number Publication date
EP0795186B1 (fr) 1998-06-17
DE59502621D1 (de) 1998-07-23
WO1996017366A1 (fr) 1996-06-06

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