EP0901140A2 - Dispositif d'actionnement électromagnétique pour un commutateur - Google Patents

Dispositif d'actionnement électromagnétique pour un commutateur Download PDF

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Publication number
EP0901140A2
EP0901140A2 EP98115421A EP98115421A EP0901140A2 EP 0901140 A2 EP0901140 A2 EP 0901140A2 EP 98115421 A EP98115421 A EP 98115421A EP 98115421 A EP98115421 A EP 98115421A EP 0901140 A2 EP0901140 A2 EP 0901140A2
Authority
EP
European Patent Office
Prior art keywords
switch
transmission lever
leaf spring
armature
lever
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.)
Withdrawn
Application number
EP98115421A
Other languages
German (de)
English (en)
Other versions
EP0901140A3 (fr
Inventor
Jörg Stamm
Karin Spengler
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.)
ABB Patent GmbH
Original Assignee
ABB Patent GmbH
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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0901140A2 publication Critical patent/EP0901140A2/fr
Publication of EP0901140A3 publication Critical patent/EP0901140A3/fr
Withdrawn legal-status Critical Current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
    • H01H50/645—Driving arrangements between movable part of magnetic circuit and contact intermediate part making a resilient or flexible connection
    • H01H50/646—Driving arrangements between movable part of magnetic circuit and contact intermediate part making a resilient or flexible connection intermediate part being a blade spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
    • H01H2003/463—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle using a blade spring lever for perpendicular force transmission
    • 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
    • H01H50/643—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rotating or pivoting movement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
    • H01H89/06—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device
    • H01H89/08—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device with both devices using the same contact pair

Definitions

  • the invention relates to an electromagnetic drive for a switch according to the Preamble of claim 1.
  • the combination of motor protection switch and contactor is generally used, with the Motor protection switch as a protective element, the contactor is used as a switching element.
  • Each of these elements has a contact system, with silver contacts, which is expensive.
  • the object of the present invention is to provide a contactor for a motor protection switch assign that when reducing the number of contact pieces also the manufacturing effort can be reduced.
  • the electromagnetic drive according to the invention for a switch has a magnet system, whose movable anchor is a transmission lever for actuating Drives switching contacts in the switch, and according to the invention is characterized in that that the armature is coupled to the transmission lever by means of a leaf spring, whose leaf extension is transverse to the direction of anchor movement, one of which End firmly clamped and the other end coupled to the transmission lever is so that the transmission lever is driven when the leaf spring bends.
  • the transmission lever is advantageously a pivot lever whose pivot axis perpendicular to the movement of the free end of the leaf spring, and according In another embodiment, the pivot axis also runs parallel to the direction of movement of the anchor.
  • a motor protection switch 10 is shown schematically, in which a movable Switch contact carrier 11 is arranged, mounted on the contact bridges 12, 13 and 14 are whose contact pieces 15, 16 and 17 with fixed contact pieces 18, 19 and 20 interact.
  • the motor protection switch which is accommodated in a housing 21, is a drive 22 assigned or lined up on this drive, which also in its own drive housing 23 is housed.
  • the drive housing 23 are in 1 and 2 components shown.
  • These components include an electromagnetic system 30 with a U-shaped yoke 31 and a coil 32, which has a fixed core 33 and a movable core Anchor 34 includes.
  • a transmission element 35 attached in which a transverse opening 36th is housed in the central area, ie in the area of the central axis M-M of Magnet system 30 a constriction 37 and at the two opposite ends each has a trumpet-shaped extension 38 and 39; the clear width of the narrowing 37 corresponds to the thickness of a leaf spring 40, which is transverse to the central axis M-M and with its leaf spring plane passes through the opening 36 perpendicularly thereto and is guided therein is.
  • the trumpet-shaped extensions 38 and 39 are so dimensioned that they can easily allow bending into the shape according to FIG. 2.
  • the other end engages in one of the openings 42 corresponding opening 43 of a further clamping 45, which acts as a double arm lever 44 is mounted and an opening 49 in both the housing 23 and engages in the housing 21 and in the housing 23 on a pivot axis 46 is pivotally mounted, parallel to the central axis M-M and perpendicular to the leaf spring extension runs.
  • the lever 44 is a double arm lever, its inside the housing 21 of the motor protection switch 10 located end 48 is angled L-shaped and acts on the switching bridge 11 so that the contact pieces 15, 18; 16, 19; 17, 20 can be closed or opened when actuated.
  • Fig. 1 shows the leaf spring 40 in a straight or rectilinear position.
  • the wedge shape of the openings 42 and 43 is asymmetrical and dimensioned so that the Leaf spring a bend from the position shown in FIG. 1 in the position shown in FIG. 2nd is made possible. Accordingly, the wedge surface remote from the magnet system aligned perpendicular to the direction of movement of the armature 34 and parallel to the leaf spring 40, whereas inclined surface of the wedge shape on the magnet system 30 facing Side lies.
  • the leaf spring can also be operated in the opposite direction can; then the leaf spring would be bent in the de-energized state of the magnet system and in the excited state rectilinear, which is a different arrangement of the fixed Contact pieces 18 to 20 based on the movable contact pieces 15 to 17 conditionally. Likewise, the wedge shape of the openings would be reversed and the curved shape of the Leaf spring 40 also adapted.
  • Fig. 3 it is shown that the pivot axis 46 is located within the module 22. Of course there is also the possibility of swiveling the axis in the motor protection switch 10 to relocate.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Tumbler Switches (AREA)
  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP98115421A 1997-09-03 1998-08-17 Dispositif d'actionnement électromagnétique pour un commutateur Withdrawn EP0901140A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19738372A DE19738372A1 (de) 1997-09-03 1997-09-03 Elektromagnetischer Antrieb für einen Schalter
DE19738372 1997-09-03

Publications (2)

Publication Number Publication Date
EP0901140A2 true EP0901140A2 (fr) 1999-03-10
EP0901140A3 EP0901140A3 (fr) 2000-01-12

Family

ID=7840987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98115421A Withdrawn EP0901140A3 (fr) 1997-09-03 1998-08-17 Dispositif d'actionnement électromagnétique pour un commutateur

Country Status (4)

Country Link
US (1) US5949314A (fr)
EP (1) EP0901140A3 (fr)
CA (1) CA2246437A1 (fr)
DE (1) DE19738372A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011003751A1 (fr) * 2009-07-09 2011-01-13 Siemens Aktiengesellschaft Commutateur de puissance avec unité intégrée de déclenchement et d'entraînement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7530326B2 (en) * 2005-06-01 2009-05-12 Munchkin, Inc. Blanket assembly for pet bed

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE247414C (fr) *
EP0236576B1 (fr) * 1986-01-10 1991-08-14 Matsushita Electric Works, Ltd. Coupe-circuit
DE3609726C1 (de) * 1986-03-21 1987-10-29 Hengstler Bauelemente Elektromagnetisches Relais
DE3737539A1 (de) * 1987-11-05 1989-05-18 Asea Brown Boveri Elektrisches installationsschaltgeraet
DE3743122C1 (de) * 1987-12-18 1989-02-16 Sds Relais Ag Elektromagnetisches Schaltgeraet
US5872497A (en) * 1996-10-23 1999-02-16 Physio-Control Corporation High energy transfer relay

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011003751A1 (fr) * 2009-07-09 2011-01-13 Siemens Aktiengesellschaft Commutateur de puissance avec unité intégrée de déclenchement et d'entraînement
US8638183B2 (en) 2009-07-09 2014-01-28 Siemens Aktiengesellschaft Power switch having integrated trigger and drive unit

Also Published As

Publication number Publication date
EP0901140A3 (fr) 2000-01-12
DE19738372A1 (de) 1999-03-04
CA2246437A1 (fr) 1999-03-03
US5949314A (en) 1999-09-07

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