EP0855084A2 - Dispositif d'amortissement magnetique - Google Patents

Dispositif d'amortissement magnetique

Info

Publication number
EP0855084A2
EP0855084A2 EP96943861A EP96943861A EP0855084A2 EP 0855084 A2 EP0855084 A2 EP 0855084A2 EP 96943861 A EP96943861 A EP 96943861A EP 96943861 A EP96943861 A EP 96943861A EP 0855084 A2 EP0855084 A2 EP 0855084A2
Authority
EP
European Patent Office
Prior art keywords
damping
magnetic
yoke
spring
arrangement according
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
EP96943861A
Other languages
German (de)
English (en)
Other versions
EP0855084B1 (fr
Inventor
Hans Pfab
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 EP0855084A2 publication Critical patent/EP0855084A2/fr
Application granted granted Critical
Publication of EP0855084B1 publication Critical patent/EP0855084B1/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
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
    • H01H50/305—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature damping vibration due to functional movement of armature

Definitions

  • the invention relates to a magnetic damping arrangement for damping a non-switching magnetic yoke of an electromagnetic system with a magnetic coil, in particular for a switching device, e.g. a contactor, the magnetic yoke being kept damped by spring force.
  • a generic magnetic damping arrangement is known from German Patent 24 57 608.
  • the non-switching magnetic part is pressed here in the direction of the bottom of a magnetic chamber by a bolt via two damping compression springs.
  • An insert is inserted between the non-switching magnetic part and the bottom of the magnetic chamber.
  • the damping compression springs are supported on the one hand on the bolt and on the other hand on a coil of an electromagnetic switching device which is held fixed to the housing.
  • leaf springs are also known to be used, which tension the magnetic yoke via a bolt on the bottom of the magnetic chamber.
  • the magnetic damping arrangements dampen the shock vibration processes that occur when AC magnets are closed due to the relatively high closing speeds. These vibration processes, as known from contactors with AC magnets, have an impact on the electrical and mechanical life of the contactors.
  • the object of the invention is to improve a magnetic damping arrangement of the type mentioned above in such a way that, due to a simple construction with as few parts as possible, only low costs arise and short assembly times are required. According to the invention this object is achieved in that a single damping compression spring is provided for damping the magnetic yoke, which on the one hand Coil body of the magnet coil and on the other hand directly supported on the magnet yoke.
  • damping compression spring is designed as a conical spring, since in the compressed state it takes up little space in height.
  • first mounting elements serving to support and center the damping compression spring are provided on one end face of the coil former.
  • second holding elements for supporting the damping compression spring are present on the inner surface of the magnetic yoke facing the coil former.
  • the magnetic yoke is E-shaped and the damping compression spring is held by the middle leg of the magnetic yoke.
  • 1 shows a magnetic damping arrangement in an exploded view
  • 2 shows a magnetic damping arrangement in the assembled
  • FIG 3 shows a section of a magnetic yoke.
  • FIG. 1 shows a magnetic damping arrangement in an exploded view, the essential elements of which are a non-switching magnetic yoke 1 to be damped, a coil body 2 with a magnetic coil 3 and coil connections 4, a lower housing part 5, a damping rubber part 6 and a damping compression spring 7 belong.
  • the coil body 2 is provided on its end facing the magnetic yoke 3 with bevelled projections 9 as first mounting elements which serve to support and center the conical damping compression spring 7 on its larger spring end turn 13.
  • the E-shaped magnetic yoke 1 here lies between the strip-shaped damping rubber part 6 on the housing bottom wall 8 of the lower housing part 6 and is pressed under the spring force of the damping compression spring 7 in the direction of the housing bottom wall 8. Vibrations of the yoke 1 by impact of the movable armature, not shown here in the suit of the electromagnet system are attenuated by the Dämp ⁇ evaporation pressure spring 7 which derendwindung with their smaller Fe ⁇ 13 on the ⁇ the coil body 2 facing the inner surface 10 of the yoke 1 is supported. The smaller spring end turn 13 is placed over the middle leg 11 of the E-shaped magnetic yoke 1 and is thereby held and centered. In the assembled state according to FIG. 2, the central leg 11 of the magnetic yoke 1 is immersed in a form-fitting manner in a central opening (not shown here) in the coil body 2.
  • a circular groove 12 could be used as the second mounting element according to FIG smaller spring end turn 13 of the damping compression spring 7 can be milled.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Vibration Prevention Devices (AREA)
  • Electromagnets (AREA)

Abstract

L'invention a pour objet de créer un dispositif d'amortissement magnétique de construction simple et économique, notamment pour des contacteurs dotés d'aimants à courant alternatif. Selon l'invention, la culasse (1) sans commutation d'un système électromagnétique comprenant une bobine (3) magnétique est amortie par un seul ressort d'amortissement (7) qui repose directement, d'un côté, sur l'armature (2) de la bobine (3) magnétique et, de l'autre côté, sur la culasse (1).
EP96943861A 1995-10-12 1996-10-02 Dispositif d'amortissement magnetique Expired - Lifetime EP0855084B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19538056 1995-10-12
DE19538056 1995-10-12
PCT/DE1996/001901 WO1997014165A2 (fr) 1995-10-12 1996-10-02 Dispositif d'amortissement magnetique

Publications (2)

Publication Number Publication Date
EP0855084A2 true EP0855084A2 (fr) 1998-07-29
EP0855084B1 EP0855084B1 (fr) 1999-04-28

Family

ID=7774691

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96943861A Expired - Lifetime EP0855084B1 (fr) 1995-10-12 1996-10-02 Dispositif d'amortissement magnetique

Country Status (5)

Country Link
US (1) US6037852A (fr)
EP (1) EP0855084B1 (fr)
CN (1) CN1064174C (fr)
DE (1) DE59601790D1 (fr)
WO (1) WO1997014165A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009034611B4 (de) 2009-07-27 2019-10-02 Siemens Aktiengesellschaft Schaltgerät mit Dämpfungsanordnung

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19919122A1 (de) * 1999-04-27 2000-11-02 Iro Patent Ag Baar Aktuator und Fadenbremse mit einem Aktuator
DE102009034247B4 (de) 2009-07-22 2015-02-12 Siemens Aktiengesellschaft Schaltgerät mit Dämpfungsanordnung
JP5029731B2 (ja) * 2010-07-08 2012-09-19 富士電機機器制御株式会社 電磁接触器
JP5622808B2 (ja) * 2012-07-31 2014-11-12 日本電産コパル株式会社 振動アクチュエータ
DE102014214950A1 (de) * 2014-07-30 2016-02-04 Siemens Aktiengesellschaft Schaltgerät mit reduziertem Schaltgeräusch
CN205376416U (zh) * 2015-12-09 2016-07-06 浙江正泰电器股份有限公司 交流接触器
JP6864579B2 (ja) * 2017-08-03 2021-04-28 株式会社日立製作所 接触器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2920254A (en) * 1957-07-18 1960-01-05 Gen Controls Co Solenoid device for use with gas valves
US3013768A (en) * 1959-12-03 1961-12-19 Valcor Eng Corp Solenoid and plunger
GB1368248A (en) * 1970-12-08 1974-09-25 Lucas Industries Ltd Solenoid for use in an engine starter mechanism
DE4123369A1 (de) * 1991-07-15 1993-04-08 Oppach Schaltelektronik Elektromagnetisches schaltgeraet, insbesondere schuetz mit geradfuehrung, mit mitteln zur daempfung von kontaktprellungen
DE4203803C2 (de) * 1992-02-10 1997-04-17 Siemens Ag Schaltschütz
JP3324145B2 (ja) * 1992-07-31 2002-09-17 株式会社デンソー マグネットスイッチ
JPH07182961A (ja) * 1993-12-22 1995-07-21 Fuji Electric Co Ltd 電磁接触器の鉄心保持構造

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9714165A2 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009034611B4 (de) 2009-07-27 2019-10-02 Siemens Aktiengesellschaft Schaltgerät mit Dämpfungsanordnung

Also Published As

Publication number Publication date
EP0855084B1 (fr) 1999-04-28
CN1064174C (zh) 2001-04-04
DE59601790D1 (de) 1999-06-02
US6037852A (en) 2000-03-14
WO1997014165A3 (fr) 1997-10-30
CN1196822A (zh) 1998-10-21
WO1997014165A2 (fr) 1997-04-17

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