EP2096656A1 - Appareil de commutation - Google Patents

Appareil de commutation Download PDF

Info

Publication number
EP2096656A1
EP2096656A1 EP09001281A EP09001281A EP2096656A1 EP 2096656 A1 EP2096656 A1 EP 2096656A1 EP 09001281 A EP09001281 A EP 09001281A EP 09001281 A EP09001281 A EP 09001281A EP 2096656 A1 EP2096656 A1 EP 2096656A1
Authority
EP
European Patent Office
Prior art keywords
leg
bobbin
armature
coil
slot
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
EP09001281A
Other languages
German (de)
English (en)
Other versions
EP2096656B1 (fr
Inventor
Ralf MÜLLER
Frank Hustert
Ralph Burckhardt
Guido NIEWÖHNER
Hans-Peter Weyand
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 AG Germany
Original Assignee
ABB AG Germany
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 AG Germany filed Critical ABB AG Germany
Publication of EP2096656A1 publication Critical patent/EP2096656A1/fr
Application granted granted Critical
Publication of EP2096656B1 publication Critical patent/EP2096656B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures

Definitions

  • the invention relates to a switching device, in particular a motor protection switch, with a magnetic release having a yoke, which has a U-shaped first portion having a first leg and a leg extending parallel thereto, between which a coil with a coil winding, an armature and a bobbin arranged are, wherein the armature passes through an opening, and with a restraining spring which is connected to the free end of the armature outside the first leg, according to the preamble of claim 1.
  • the invention further relates to a method for mounting the magnetic release of the motor protection switch according to claim 4.
  • Such a switching device is from the DE 199 35 662 A1 known.
  • the magnetic release for the electrical switching device has a yoke, which has a U-shaped first portion having a first and a second leg, between which a coil with coil winding, armature and bobbin are arranged.
  • the anchor engages through an opening in the first leg of the U-shape and is tied with a restraining spring, which is connected to the free end of the armature outside of the first leg.
  • the object of the invention is the motor switch and in particular the magnetic release of the type mentioned in such a way that a simple assembly of the armature with coil and bobbin is possible. Furthermore, a simple assembly method should be specified.
  • the opening is formed as a slot open to the free end of the first leg, so that the coil with the bobbin in the direction of the longitudinal extent of the first leg to the web connecting the two legs of the U-shape inserted or inserted into the slot , wherein the anchor passes through the slot.
  • the assembly is considerably simplified because Einfädelungss the anchor in a closed opening no longer need to be performed.
  • this simplification is further supported by the fact that the bobbin has two radial flanges, of which the first flange rests against the inner surface of the second leg and in that pockets are provided in the second flange, in which the tines delimiting the slot intervention.
  • the diameter of the armature may be stepped with a larger diameter portion located in the bobbin, and with a smaller diameter portion protruding from the first leg and engaging the fetlock spring at the end thereof.
  • the method for mounting the magnetic release, with which the assembly can be carried out is characterized in that first the bobbin wound with a coil, then the anchor is inserted into the interior of the bobbin, then that the bobbin together with the armature and the coil on the first leg of the yoke is pushed and that then the restraint spring is pushed over the anchor and fixed.
  • the Fig. 1 shows the lower housing part 10 of an electrical switching device, here a motor protection switch, which is bounded by two parallel outer walls 11 and 12 and intermediate walls 13 and 14, are formed by the chambers 15, 16 and 17, in which there are electromagnetic triggers and other components, wherein the structure of the electromagnetic release based on the Figures 2 . 3 and 4 will be described in more detail.
  • the electromagnetic actuator has a yoke 50 which has a U-shaped portion 51 having a first leg 52 and a second leg 53; at the free end of the second leg 53, a bent perpendicular to this bend 54 is formed on which a retaining leg 55 is formed on which a not shown in the drawing thermal release is attached.
  • a coil 56 is used, which coil 56 has a bobbin 57 with two radial flanges 58 and 59; around the bobbin is one in the Fig. 4 not shown coil wound.
  • an armature 80 having two sections 81 and 60 of different diameters; the first larger diameter portion 81 is completely within the bobbin, whereas the second portion 60 protrudes with a smaller diameter from the bobbin 57 and thereby projects beyond the first leg 52.
  • the flange 59 is formed widened, in particular, the axial thickness of the flange 59 is increased relative to the axial thickness of the flange 58.
  • an inwardly projecting bar 61 is provided, which partially surrounds the second portion 60 of the armature.
  • an arm 62 is formed, which projects in the longitudinal direction of the armature 80 and at its free end a nose 63 which nose 63 protrudes toward the flange 59 and with a restraining spring 38, see Fig. 2 , cooperates.
  • the shackle spring 38 comprises a plurality of circular, helically associated windings 39, the last turn 40 is oval shaped and has two legs 41 and 42 which are perpendicular to the spring axis and span a plane which is also perpendicular to the axis.
  • the winding 40 with the two legs 41 and 42 forms a projection 43, which projects radially beyond the envelope of the coil spring 38 and the restraint spring 38. With this portion, which projects beyond the envelope of the restraining spring 38, the restraining spring cooperates with the nose 63 by the nose 63 engages in the space between the legs 41 and 42.
  • the armature 80 has at the free end of the second portion 60 of smaller diameter, a mushroom 65 which is disposed from the free end portion of the second portion 60 at a distance D1 and therebetween a mushroom foot 66, with which the fungus 65 with the second section 60 is connected.
  • the outer diameter of the mushroom foot 66 is sized to be encompassed by the two legs 41, 42 so that these two legs engage between the second portion 60 and the mushroom 65, thus coupling the fetlock spring to the armature 80.
  • the first leg 52 has an opening 82 which is formed as an open slot, so that the bobbin, together with the coil and the armature parallel to the longitudinal extent of the leg 52 toward the web 67, which connects the two legs 52 and 53 together can be seen by the tines 68 and 69 in existing in the flange 59 pockets 70, 71, see Fig. 6 , can be inserted.
  • the Fig. 6 also shows the arm 62 with the nose 63, which is arranged projecting on an L-leg 72 of the arm to the flange 59 out. The nose 63 attacks, as in Fig. 4 can be seen in the space between the windings 40 and 41 a.
  • the advantage of the stepped armature is that the larger diameter portion that runs inside the coil receives a larger magnetic force; By using a larger amount of iron, saturation occurs later so that stronger and earlier attraction occurs at equal currents, as compared to an anchor having a non-stepped outer diameter.
  • the armature 80 is first inserted into the bobbin 57, wherein previously, of course, the coil is wound around the bobbin 57. Then, the bobbin 57 is inserted with the anchor used in the yoke or in the slot 82 by the tines 68 and 69 engage in the pockets 70 and 71 sized for it; In this case, the protruding from the bobbin anchor part, that is, therefore, the second portion 60 of smaller diameter is inserted through the opening of the elongated hole in the same; Thereafter, the restraint spring 38 is attached to the bobbin 57, and the flange 59 projecting portion 60, wherein the two windings 40, 41 engaged in the region of the mushroom foot 66 and the projection of the windings 40, 41 are placed behind the nose 63.
  • the bar 61 on the spool flange limits the movement of the armature 80 toward the first leg 52.
  • the strip 61 overlaps only a portion of the inner diameter, so that only this small portion with the gradation 61 1 is used to guide the restraint spring 38.
  • the Fig. 3 shows a slot 83 in the leg 55, in this slot 80, the foot of a bimetallic strip, which is perpendicular to the leg 55, used and fixed therein.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Breakers (AREA)
EP09001281.6A 2008-03-01 2009-01-30 Appareil de commutation Active EP2096656B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008012149A DE102008012149A1 (de) 2008-03-01 2008-03-01 Schaltgerät

Publications (2)

Publication Number Publication Date
EP2096656A1 true EP2096656A1 (fr) 2009-09-02
EP2096656B1 EP2096656B1 (fr) 2015-04-08

Family

ID=40756269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09001281.6A Active EP2096656B1 (fr) 2008-03-01 2009-01-30 Appareil de commutation

Country Status (4)

Country Link
US (1) US8049584B2 (fr)
EP (1) EP2096656B1 (fr)
CN (1) CN101556883B (fr)
DE (1) DE102008012149A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010005345B4 (de) 2010-01-21 2022-04-21 Abb Schweiz Ag Elektrisches Schaltgerät in modularer Bauweise
GB2498806A (en) * 2012-01-30 2013-07-31 P S Electrical Services 1998 Ltd Air circuit breaker coil adapter
DE102013114663A1 (de) 2013-12-20 2015-06-25 Eaton Industries Austria Gmbh Schaltgerät
CN111640601A (zh) * 2020-06-09 2020-09-08 广州坤开机电设备有限公司 一种拼接式可插拔的小型断路器及其使用方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0569652A1 (fr) * 1992-05-13 1993-11-18 Hager Electro S.A. Déclencheur magnétique pour disjoncteur, sous-ensemble correspondant et disjoncteurs les incorporant
DE19845476A1 (de) * 1998-10-02 2000-04-13 Aeg Niederspannungstech Gmbh Magnetsystem
DE19935662A1 (de) 1999-07-29 2001-02-01 Abb Patent Gmbh Elektromagnetischer Auslöser
DE102005020167A1 (de) * 2005-04-30 2006-11-09 Abb Patent Gmbh Elektromagnetischer Auslöser für ein elektrisches Installationsgerät

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959755A (en) * 1974-12-13 1976-05-25 Airpax Electronics Incorporated Circuit breaker with improved delay
US4250477A (en) * 1978-09-07 1981-02-10 Allen-Bradley Company Mechanical latch apparatus
US4288769A (en) * 1979-11-28 1981-09-08 General Electric Company Ambient temperature responsive trip device for static trip circuit breakers
DE3339401A1 (de) * 1983-10-29 1985-05-09 Sursum Elektrizitätsgesellschaft Leyhausen GmbH & Co, 8500 Nürnberg Selbstschalter zum aufsetzen auf schienen
US4697163A (en) * 1986-03-27 1987-09-29 Westinghouse Electric Corp. Circuit breaker with impact trip delay
US4713639A (en) * 1987-02-20 1987-12-15 Westinghouse Electric Corp. Circuit breaker with push-to-trip button and trip bar
FR2616584B1 (fr) * 1987-06-11 1989-09-29 Hager Electro Ensemble magnetothermique de disjonction pour disjoncteur ou disjoncteur differentiel
US4973928A (en) * 1989-03-31 1990-11-27 Westinghouse Electric Corp. Extender spring for increased magnetic trip settings
FR2673487B1 (fr) * 1991-02-28 1993-10-29 Telemecanique Interrupteur de protection incorporant un sous-ensemble magnetothermique de declenchement.
FR2753836B1 (fr) * 1996-09-23 1998-10-30 Declencheur electromagnetique pour appareil electrique de protection
US5831501A (en) * 1997-04-14 1998-11-03 Eaton Corporation Adjustable trip unit and circuit breaker incorporating same
CN1163932C (zh) * 1998-08-14 2004-08-25 西门子公司 过电流释放器
DE10002773B4 (de) * 2000-01-22 2005-12-15 Abb Patent Gmbh Motorschutzschalter
ATE347171T1 (de) * 2000-09-12 2006-12-15 Hager Electro Sas Schutzschalter mit magnetothermischer auslöseeinheit
US6940373B2 (en) * 2003-11-21 2005-09-06 Ark-Les Corporation Fast engage, slow release electrical actuator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0569652A1 (fr) * 1992-05-13 1993-11-18 Hager Electro S.A. Déclencheur magnétique pour disjoncteur, sous-ensemble correspondant et disjoncteurs les incorporant
DE19845476A1 (de) * 1998-10-02 2000-04-13 Aeg Niederspannungstech Gmbh Magnetsystem
DE19935662A1 (de) 1999-07-29 2001-02-01 Abb Patent Gmbh Elektromagnetischer Auslöser
DE102005020167A1 (de) * 2005-04-30 2006-11-09 Abb Patent Gmbh Elektromagnetischer Auslöser für ein elektrisches Installationsgerät

Also Published As

Publication number Publication date
CN101556883A (zh) 2009-10-14
DE102008012149A1 (de) 2009-09-03
EP2096656B1 (fr) 2015-04-08
CN101556883B (zh) 2014-08-06
US20090219662A1 (en) 2009-09-03
US8049584B2 (en) 2011-11-01

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