WO2011009694A1 - Appareil de commutation à dispositif d'amortissement - Google Patents

Appareil de commutation à dispositif d'amortissement Download PDF

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Publication number
WO2011009694A1
WO2011009694A1 PCT/EP2010/059063 EP2010059063W WO2011009694A1 WO 2011009694 A1 WO2011009694 A1 WO 2011009694A1 EP 2010059063 W EP2010059063 W EP 2010059063W WO 2011009694 A1 WO2011009694 A1 WO 2011009694A1
Authority
WO
WIPO (PCT)
Prior art keywords
damping
yoke
switching device
magnetic
damping element
Prior art date
Application number
PCT/EP2010/059063
Other languages
German (de)
English (en)
Inventor
Norbert Zimmermann
Klaus Danzer
Alfred BÄUML
Alexander Oberleiter
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to CN201080033208.3A priority Critical patent/CN102473553B/zh
Publication of WO2011009694A1 publication Critical patent/WO2011009694A1/fr

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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H2009/0278—Casings containing special noise reduction means, e.g. elastic foam between inner and outer casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/36—Stationary parts of magnetic circuit, e.g. yoke

Definitions

  • the invention relates to a switching device, in particular contactor comprising an upper housing part and a lower housing part, a magnetic chamber disposed in the lower housing part, in which a drive unit, consisting of an armature, a coil, a yoke and a magnetic damping arrangement for damping the yoke are arranged.
  • a drive unit consisting of an armature, a coil, a yoke and a magnetic damping arrangement for damping the yoke are arranged.
  • Switchgear with AC drive unit has a very high switch-on speed when closing the magnet system.
  • the armature bounces with the contact carrier on the yoke and the movable contact bridges of the off position on the
  • a magnetic damping arrangement in which the yoke rests in a housing on a longitudinally over the yoke extending strip-shaped damping rubber on the housing bottom wall and between a bobbin and the yoke, a conical damping pressure spring is arranged, which Pressing yoke in the direction of the housing bottom wall and damps the impact of the armature on the yoke by means of the spring force of the damping compression spring when closing the magnet system.
  • a magnetic damping arrangement is known from EP 0 855 085 B1, with which the housing bottom is designed to oscillate.
  • the yoke is supported with the interposition of an insert rubber and the magnetic chamber bottom is supported by two different spring surfaces. derend areas, a soft and a relatively hard spring, formed.
  • the spring action can be adapted to the required damping.
  • a magnetic damping arrangement which holds the yoke elastically by means of a damping spring on the coil bobbin of the solenoid.
  • the damping spring which is designed as a leaf spring, out through the openings which extend laterally through the yoke, so that the damping spring with the yoke forms a first abutment.
  • Nose-shaped projections are provided on the coil bobbin of the magnetic coil, in which the two ends of the damping spring are held and form a second abutment.
  • the magnetic damping arrangements described serve to reduce the contact bounce and rebound of the contacts.
  • a variable setting of a defined damping force is dependent on the properties of the materials used, such as the damping rubber and the damping spring, in the magnetic damping arrangements mentioned.
  • a separate damping element is necessary for different device variants and the different magnetic chamber contours.
  • the damping of the damping property must be intervened in the geometry of the housing base, in particular in the geometry of the housing base, in order to meet the requirements of various device variants with respective ones
  • the adjustment of the damping property is connected in the known solutions with considerable effort and not readily possible.
  • Another disadvantage is that the switching energy is damped in a straight-line probation and thus the rebound is dependent on the material properties.
  • the invention has for its object to provide a magnetic damping arrangement that allows adjustment of the damping element and thus setting a damping force without much effort.
  • the switching device in particular contactor, has an upper housing part and a lower housing part, a magnetic chamber arranged in the lower housing part, in which a drive unit consisting of an armature, a coil, a yoke and a magnetic damping arrangement for damping the yoke is arranged. It is essential to the invention that the yoke is arranged for damping both on the one hand on a fixed bearing, as well as on a damping element.
  • the magnetic damping arrangement is arranged in a housing lower part.
  • the lower housing part forms the magnet chamber with a yoke, over which a spring element for fixing it and a bobbin are arranged.
  • a support element is formed, which serves as a fixed bearing for the yoke, as well as mounting positions for the insertion of a damping element.
  • the switching device according to the invention with damping arrangement makes it possible to use the damping properties of the damping rubbers and the magnetic chamber bottom while reducing the caster and the rebound of the contact carrier. In addition, it is now possible to adjust the damping behavior of the devices during ongoing device production.
  • the Magnetj och is rotatably mounted in the magnetic chamber.
  • the cushioning rubber is without one another additional part arranged directly under the yoke and can be mounted at different positions in the magnetic chamber. By changing the position of the damping rubber, the damping behavior of the devices is influenced.
  • the yoke is fixed by a compression spring located on the middle limb of the yoke or by a plurality of compression springs in the magnet chamber.
  • the advantage of this arrangement is that the positive properties of the damping rubbers in conjunction with the damping properties of the magnetic chamber bottom and the deflection of the rectilinear motion into a rotary movement causes the contact bounce and at the same time the caster and the rebound of the contact carrier to be reduced.
  • the spring property of the magnet chamber can be compensated by the positioning of the damping rubber.
  • an adjustment of the damping properties is possible by the variable arrangement of the damping rubber during the ongoing device manufacturing.
  • the design of the device damping also makes it possible to equip different device variants with different magnetic chamber contours, for example for a screw and CC connection, with the same damping system. For the device damping is chosen by the structure so chosen only a damping rubber without additional additional components.
  • a particularly advantageous embodiment is that the damping element is adjustable in the lower housing part and thus the damping force or the damping properties can be adjusted for different device variants with different magnetic chamber contour.
  • the damping element is arranged below the yoke and thus compensates for the spring properties of the magnetic chamber.
  • the damping element is formed of rubber.
  • the damping element is designed as a spring.
  • the yoke is positionable on the housing by at least one spring element on the fixed bearing and the damping element.
  • a particularly advantageous embodiment is that the yoke is rotatably mounted in the magnetic chamber, as this redirected a rectilinear movement in a rotational movement and thus the contact bouncing or rebounding is more reduced.
  • Another particularly advantageous embodiment is that in the lower housing part, a fixed bearing for supporting a yoke is formed. Thus, during assembly no additional parts have to be considered.
  • a particularly advantageous embodiment consists in that recesses for adjusting the damping element are provided in the lower housing part, so that a defined attenuation value can be assigned to a recess.
  • the fixed bearing or the recess are provided for adjusting the damping element in the bottom of the housing base, since only one rubber is necessary for the device damping by this arrangement.
  • Figure 1 is a perspective view of a switching device with inventive damping arrangement.
  • Fig. 2 is a schematic representation of a switching device with damping arrangement according to the invention.
  • a switching device 1 with a housing 2, which consists of a housing lower part 3, on which an upper housing part 4 mounted, shown.
  • the lower housing part 3 is formed as a magnetic chamber 5, which has a magnetic chamber bottom 6 on its underside.
  • a drive unit 7 consisting of a yoke 8 resting on the magnet chamber bottom 6, a coil 9 arranged above the yoke 8 and an armature 10 movably arranged above the coil 9.
  • Fig. 2 shows the switching device 1 with the Magnetdämpfungsanord- tion 11 and the magnetic chamber bottom 6, on the one hand, an increase is designed as a fixed bearing 12 and on the other recesses 13 are introduced.
  • the recesses 13 have a defined distance, measured from the fixed bearing 12 and serve the deposits of a damping element 14.
  • the damping element 14 is inserted depending on the required damping force in the recess provided therefor 13 and thus adjustable.
  • the yoke 8 which is held in its position by a spring element 15 located between the yoke top side and the coil body underside, is arranged.
  • the device according to the invention it is possible to adjust a single damping element through the insert into differently arranged recesses on the magnetic-chamber bottom, to use it via different device variants and to generate a greater damping property due to a rotational movement through the arrangement of the magnetic damping.

Landscapes

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

Abstract

L'invention concerne un appareil de commutation (1), en particulier un contacteur électromagnétique, présentant une partie supérieure (4) de boîtier et une partie inférieure (3) de boîtier, une chambre magnétique (5) disposée dans la partie inférieure (3) de boîtier, chambre dans laquelle est disposée une unité de commande (7) comprenant une armature (10), une bobine (9), une culasse (8) et un dispositif d'amortissement magnétique (11) pour l'amortissement de la culasse (8). L'invention est caractérisée en ce que la culasse (8) est disposée, pour l'amortissement, aussi bien sur un support fixe (12) que sur un élément d'amortissement (14).
PCT/EP2010/059063 2009-07-22 2010-06-25 Appareil de commutation à dispositif d'amortissement WO2011009694A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201080033208.3A CN102473553B (zh) 2009-07-22 2010-06-25 带有减震结构的开关装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009034247.8 2009-07-22
DE200910034247 DE102009034247B4 (de) 2009-07-22 2009-07-22 Schaltgerät mit Dämpfungsanordnung

Publications (1)

Publication Number Publication Date
WO2011009694A1 true WO2011009694A1 (fr) 2011-01-27

Family

ID=42732540

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/059063 WO2011009694A1 (fr) 2009-07-22 2010-06-25 Appareil de commutation à dispositif d'amortissement

Country Status (3)

Country Link
CN (1) CN102473553B (fr)
DE (1) DE102009034247B4 (fr)
WO (1) WO2011009694A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1257938B (de) * 1962-11-19 1968-01-04 Licentia Gmbh Elektromagnetisches Antriebssystem, insbesondere fuer Schaltschuetze
DE7103106U (de) 1971-01-28 1972-07-06 Siemens Ag Elektromagnetisches Schaltgerät
US4638279A (en) * 1984-02-28 1987-01-20 La Telemecanique Electrique Noiseless electromagnet and a contactor using such an electromagnet
EP0660355A1 (fr) * 1993-12-22 1995-06-28 Fuji Electric Co., Ltd. Structure de maintien du noyau de fer d'un contacteur électromagnétique
EP0855085B1 (fr) 1995-10-12 1999-04-21 Siemens Aktiengesellschaft Boitier pour appareils de commutation
EP0855084B1 (fr) 1995-10-12 1999-04-28 Siemens Aktiengesellschaft Dispositif d'amortissement magnetique
US6472963B1 (en) * 2000-02-17 2002-10-29 Chint Group Corporation Alternating current contactor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3663908A (en) * 1970-09-11 1972-05-16 Honeywell Inc Relay magnetic frame and armature arrangement
CN1063572C (zh) * 1994-11-19 2001-03-21 张凡 磁保持电磁铁

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1257938B (de) * 1962-11-19 1968-01-04 Licentia Gmbh Elektromagnetisches Antriebssystem, insbesondere fuer Schaltschuetze
DE7103106U (de) 1971-01-28 1972-07-06 Siemens Ag Elektromagnetisches Schaltgerät
US4638279A (en) * 1984-02-28 1987-01-20 La Telemecanique Electrique Noiseless electromagnet and a contactor using such an electromagnet
EP0660355A1 (fr) * 1993-12-22 1995-06-28 Fuji Electric Co., Ltd. Structure de maintien du noyau de fer d'un contacteur électromagnétique
EP0855085B1 (fr) 1995-10-12 1999-04-21 Siemens Aktiengesellschaft Boitier pour appareils de commutation
EP0855084B1 (fr) 1995-10-12 1999-04-28 Siemens Aktiengesellschaft Dispositif d'amortissement magnetique
US6472963B1 (en) * 2000-02-17 2002-10-29 Chint Group Corporation Alternating current contactor

Also Published As

Publication number Publication date
DE102009034247B4 (de) 2015-02-12
CN102473553B (zh) 2016-02-03
CN102473553A (zh) 2012-05-23
DE102009034247A1 (de) 2011-03-03

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