EP1006549A1 - Elektromechanisches Schaltgerät - Google Patents

Elektromechanisches Schaltgerät Download PDF

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Publication number
EP1006549A1
EP1006549A1 EP99402973A EP99402973A EP1006549A1 EP 1006549 A1 EP1006549 A1 EP 1006549A1 EP 99402973 A EP99402973 A EP 99402973A EP 99402973 A EP99402973 A EP 99402973A EP 1006549 A1 EP1006549 A1 EP 1006549A1
Authority
EP
European Patent Office
Prior art keywords
contact carrier
movable
mobile
switch device
pallet
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
EP99402973A
Other languages
English (en)
French (fr)
Other versions
EP1006549B1 (de
Inventor
Patrick Comtois
Patrick Larcher
Alain Moreux
Régis Perrocheau
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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 Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP1006549A1 publication Critical patent/EP1006549A1/de
Application granted granted Critical
Publication of EP1006549B1 publication Critical patent/EP1006549B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/045—Details particular to contactors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/042—Different parts are assembled by insertion without extra mounting facilities like screws, in an isolated mounting part, e.g. stack mounting on a coil-support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H2050/046—Assembling parts of a relay by using snap mounting techniques
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/541—Auxiliary contact devices
    • H01H50/545—Self-contained, easily replaceable microswitches

Definitions

  • the present invention relates to an electromagnetic switch device comprising a movable contact carrier equipped with a set of contact bridges cooperating with fixed contacts, and comprising an electromagnet constituted by a coil, a fixed armature and a movable armature, the movable armature of the electromagnet being associated with the contact carrier and ensuring the operation of the contact carrier in translation so as to open or close the contacts.
  • the patent FR 2518308 describes an electromagnetic switch device of the contactor type comprising an electromagnet operating on alternating current.
  • the contactor contact carrier has a lower cavity in which is housed the movable armature of the electromagnet, the mobile armature being fixed at using a pin passing through the frame and introduced into the body of the contact carrier on each side of the cavity.
  • the moving armature of the electromagnet is a circuit magnetic E-shaped, commonly used for a current electromagnet alternative, and the method of assembly to the contact carrier is therefore well suited.
  • this mode would be difficult to implement for a movable armature of the paddle type used rather for a DC electromagnet, the paddle being indeed too thin for the crossing of such a pin.
  • US Patent 5,281,937 describes an electromagnetic switch device of the contactor type comprising a movable armature of an electromagnet consisting of a flat pallet, the shape of which is adapted so that it can be fixed to the contact carrier mobile of the contactor, using elastic snap tabs arranged on this contact holder.
  • This method of attachment is not, however, directly adaptable to a mobile armature consisting of an E-shaped magnetic circuit
  • the invention therefore relates to an electromagnetic switch device of which the different types of movable armatures of electromagnets (especially current direct or alternating current) can be assembled with the same contact carrier mobile, the association being advantageously carried out quickly, allowing thus significantly reducing the number of different parts required for the manufacture of a whole range of contactors.
  • the switch device comprises a contact holder mobile equipped with a set of contact bridges and includes an electromagnet consisting of a coil, a fixed frame and a movable frame.
  • This movable armature is assembled by snap-fastening to the movable contact carrier by assembly means adapted to allow both direct assembly and indirect assembly.
  • the assembly means comprise at least one elastic snap tab.
  • the assembly is direct when the moving armature of the electromagnet is a magnetic pallet comprising direct assembly means which consist of two lugs of the pallet directly snapped into the elastic tabs of the movable contact carrier.
  • the assembly is indirect when the movable armature of the electromagnet is for example a mobile magnetic circuit comprising indirect assembly means which are constituted by an intermediate piece, secured to this magnetic circuit and snaps into the elastic tabs of the movable contact carrier.
  • the switch device 1 illustrated in FIG. 1 is a contactor electromagnetic system comprising several double-break power poles.
  • Each power pole includes a movable contact bridge 10 provided contact pads 11 and 12 which cooperate with fixed contacts 13 and 14.
  • Each contact bridge 10 is mounted in a central reception housing 21 provided in the body 20 of a movable contact carrier 2. The movable contact bridges 10 are moved by the translational operation of the movable contact carrier 2 which is actuated by means of an electromagnet 3.
  • the electromagnet 3 comprises a coil 31, an armature fixed 32 and a movable armature 30 of the plunging type which is subjected to pressure a conical spring 37 mounted under it, the spring being relaxed when said armature is in rest position.
  • the attraction of the movable frame 30 towards the frame fixed 32 causes the movable contact carrier 2 to move in translation so to get the contacts closed.
  • the opening of the contacts is caused by the displacement of the movable armature 30 towards its rest position by means of the spring 37 which passes from a compressed position to a relaxed position.
  • the body 20 of the movable contact carrier 2 is extended by two parts lower 22 located on either side of the contact carrier 2 in the direction of the electromagnet 3.
  • the movable armature 30 of the electromagnet is fixed to the two parts 22 of the movable contact carrier 2 by means of assembly of the type snap-in.
  • these assembly means consist of at least one elastic snap tab 23.
  • each lower part 22 of the contact carrier 2 has an elastic tab latch 23 each having a latch 24 directed inward of the body 20 as well as, under this hooking notch 24, an internal lateral panel 24a oblique.
  • Each notch 24 also has an upper rim 24b directed towards the body 20.
  • the movable armature 30 is a circuit laminated mobile magnetic 33, E-shaped, having a core 35 of axis longitudinal X, an orifice 34 of rectangular section drilled in the core 35 transversely to the longitudinal axis X and three branches 36 perpendicular to this core intended to be attracted by the fixed armature 32 during the passage of a current in the coil 31.
  • This type of movable armature is generally used for an electromagnet alternating current.
  • the means of indirect assembly of the mobile magnetic circuit 33 at contact carrier 2 are constituted by an intermediate piece, such as a key metallic 4, which is necessary since the dimensions of the mobile circuit 33 are not adapted to the spacing of the elastic tabs 23.
  • This key 4 is shaped substantially parallelepiped and has two ends 40 in the direction of the length. To secure it with the mobile circuit 33, it is inserted so elastic in the orifice 34 of the core 35. Once inserted, the key 4 has a longitudinal curvature which allows it to remain in a fixed position by resting on the internal walls of the orifice 34. Finally, the key 4 has a length sufficient to be snap-fit between the two elastic tabs 23, as well as a small width and a small thickness, so that its two ends 40 can be housed inside the notches 24.
  • the movable frame 30 is a pallet magnetic 38 of substantially parallelepiped shape, commonly used for a direct current electromagnet, and which has a flat upper face 38b in direction of the contact carrier 2.
  • the means of direct assembly of the pallet movable magnetic 38 to the contact carrier 2 are constituted by two pins 38a located on opposite edges of the pallet 38, provided with a chamfer 38c and intended to be directly snapped into the elastic tabs 23 of the movable contact carrier 2.
  • an isolation flange 27 located below the housings central 21 and above the elastic tabs 23 makes it possible to partition the poles of power vis-à-vis the movable frame in order to avoid any damage to the electromagnet during an arc cut when the contacts open.
  • positioning means 50 are provided on said flange. These means consist of at least two bosses 51 arranged on the underside 27a of the flange 27. They are advantageously separated by a distance equivalent to the width of the core 35 of the mobile circuit 33 in an E shape so as to cooperate with the edges of the soul so that it is positioned and fits between these two bosses.
  • the magnetic pallet 38 has a thickness such that once assembled with contact carrier 2, it can rest directly against the edges upper 24b notches 24 and against the underside 27a of the flange 27.
  • Des means 52 complementary to means 50 are present on the upper face 38b of the pallet 38. These complementary means 52 may consist of cavities which cooperate with the bosses 51 to position and wedge the pallet 38 against the isolation flange 27.
  • the key 4 comprises, near its ends 40, two orifices 41 into which can come lean on a tool which will be used to exert the pushing movement necessary to the mobile circuit snap-in.
  • Port 34 of rectangular section, has four internal walls, the upper internal wall 34b representing that being closest to the flange insulation 27. At its two ends, the orifice 34 forms four edges at right angles with the core 35 of the magnetic circuit 33, the upper edge 34a corresponding to the edge formed by the upper internal wall 34b.
  • the shape of the key 4 has a curvature longitudinal thanks to which it rests only on three support points: on the one hand the two ends 40 of the key 4 rest on the upper edges 24b of the notches attachment 24 (see Figures 6 and 7) and on the other hand the central part of the key 4 rests on the upper internal wall 34b of the orifice 34.
  • the key 4 exerts an elastic pressure on the upper internal wall 34b of the orifice 34 contributing to press the movable circuit 33 against the underside 27a of the flange 27 of the contact carrier 2, between the two bosses 51.
  • the longitudinal curvature of the key 4 allows it not to be in contact with the upper edges 34a of the orifice 34, which would cause premature wear of this key after a certain number of operations of the electromagnetic of the electromagnetic contactor.
  • the assembly takes place in an identical way when the movable frame of the electromagnet is a pallet 38.
  • the chamfers 38c of the two lugs 38a are pressed against the oblique faces 24a, then by a pushing movement of the pallet 38 towards the flange according to the arrow F, the elastic tabs 23 move outwards from the body 20 of the contact carrier movable to allow the pins 38a of the pallet to be inserted into the notches 24 elastic legs.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)
EP99402973A 1998-12-01 1999-11-29 Elektromechanisches Schaltgerät Expired - Lifetime EP1006549B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9815184 1998-12-01
FR9815184 1998-12-01

Publications (2)

Publication Number Publication Date
EP1006549A1 true EP1006549A1 (de) 2000-06-07
EP1006549B1 EP1006549B1 (de) 2006-11-02

Family

ID=9533469

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99402973A Expired - Lifetime EP1006549B1 (de) 1998-12-01 1999-11-29 Elektromechanisches Schaltgerät

Country Status (6)

Country Link
US (1) US6239679B1 (de)
EP (1) EP1006549B1 (de)
DE (1) DE69933842T2 (de)
ES (1) ES2275333T3 (de)
UA (1) UA61989C2 (de)
ZA (1) ZA200003868B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106128860A (zh) * 2016-07-24 2016-11-16 贵州天义电器有限责任公司 一种具有多路辅助触点的三相交流接触器

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3802998B2 (ja) * 1999-07-26 2006-08-02 株式会社東海理化電機製作所 ロータリスイッチ
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
KR102204849B1 (ko) * 2014-05-20 2021-01-18 후지 덴키 기기세이교 가부시끼가이샤 전자 접촉기

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2027136A1 (de) * 1970-06-03 1972-04-20 Siemens Ag Elektromagnetisches Schaltgerät
US3824509A (en) * 1972-05-17 1974-07-16 Furnas Electric Co Magnetically operated electric switch device
FR2259429A1 (en) * 1974-01-28 1975-08-22 Bbc Brown Boveri & Cie Electromagnetic power relay - has sliding contact carrier and bayonet fitting ans spring
US5281937A (en) * 1992-07-14 1994-01-25 Fasco Industries, Inc. Electromagnetic contactor and method for making same
FR2737603A1 (fr) * 1995-08-04 1997-02-07 Schneider Electric Sa Appareil contacteur

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19648053C1 (de) * 1996-11-20 1998-03-12 Siemens Ag Elektromagnetisches Schaltgerät

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2027136A1 (de) * 1970-06-03 1972-04-20 Siemens Ag Elektromagnetisches Schaltgerät
US3824509A (en) * 1972-05-17 1974-07-16 Furnas Electric Co Magnetically operated electric switch device
FR2259429A1 (en) * 1974-01-28 1975-08-22 Bbc Brown Boveri & Cie Electromagnetic power relay - has sliding contact carrier and bayonet fitting ans spring
US5281937A (en) * 1992-07-14 1994-01-25 Fasco Industries, Inc. Electromagnetic contactor and method for making same
FR2737603A1 (fr) * 1995-08-04 1997-02-07 Schneider Electric Sa Appareil contacteur

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106128860A (zh) * 2016-07-24 2016-11-16 贵州天义电器有限责任公司 一种具有多路辅助触点的三相交流接触器
CN106128860B (zh) * 2016-07-24 2018-06-26 贵州天义电器有限责任公司 一种具有多路辅助触点的三相交流接触器

Also Published As

Publication number Publication date
US6239679B1 (en) 2001-05-29
ZA200003868B (en) 2001-06-01
DE69933842T2 (de) 2007-03-01
UA61989C2 (en) 2003-12-15
ES2275333T3 (es) 2007-06-01
DE69933842D1 (de) 2006-12-14
EP1006549B1 (de) 2006-11-02

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