EP1376639A1 - Elektromagnetischer Auslöser mit linear bewegtem Tauchkolben - Google Patents

Elektromagnetischer Auslöser mit linear bewegtem Tauchkolben Download PDF

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Publication number
EP1376639A1
EP1376639A1 EP02360176A EP02360176A EP1376639A1 EP 1376639 A1 EP1376639 A1 EP 1376639A1 EP 02360176 A EP02360176 A EP 02360176A EP 02360176 A EP02360176 A EP 02360176A EP 1376639 A1 EP1376639 A1 EP 1376639A1
Authority
EP
European Patent Office
Prior art keywords
pallet
trip device
electromagnetic trip
contact
electromagnetic
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
EP02360176A
Other languages
English (en)
French (fr)
Other versions
EP1376639B1 (de
Inventor
Francis Diebold
Nikola Puh
Patrice Joyeux
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.)
Hager Electro SAS
Original Assignee
Hager Electro 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 Hager Electro SAS filed Critical Hager Electro SAS
Priority to EP02360176A priority Critical patent/EP1376639B1/de
Priority to ES02360176T priority patent/ES2227412T3/es
Priority to AT02360176T priority patent/ATE275757T1/de
Priority to DE60201183T priority patent/DE60201183T2/de
Publication of EP1376639A1 publication Critical patent/EP1376639A1/de
Application granted granted Critical
Publication of EP1376639B1 publication Critical patent/EP1376639B1/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
    • 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
    • H01H71/2409—Electromagnetic mechanisms combined with an electromagnetic current limiting mechanism
    • 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
    • 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
    • H01H71/2454—Electromagnetic mechanisms characterised by the magnetic circuit or active magnetic elements

Definitions

  • the present invention relates to an electromagnetic release for electrical apparatus for example of the modular circuit breaker type, that is to say, in particular with a fixed contact cooperating with a contact which is mobile between two positions respectively against and remotely said fixed contact.
  • Said triggers are electromagnetic organs of disjunction which generally comprise a coil with a movable core associated with a striker to ensure, in case of overcurrent, the disjunction by opening the movable contact.
  • induction coils with mobile core with striker and return spring are mounted longitudinally in a cylinder head able to drive the magnetic flux.
  • Electromagnetic triggers with known cross-sectional configuration have a pallet pivotally mounted between a rest position in which it is separated from the magnetic yoke and a position in which it is attracted magnetically until it comes into contact with said cylinder head.
  • Said pivoting pallet generally actuates a striker constituted of a part lying between it and a support arm of the movable contact. This one, also pivotally mounted, moves in an air gap of the cylinder head magnet opposite the pivoting pallet.
  • a striker constituted of a part lying between it and a support arm of the movable contact.
  • This one also pivotally mounted, moves in an air gap of the cylinder head magnet opposite the pivoting pallet.
  • Such a configuration is for example shown in EP 0 693 775 or EP 0 794 547.
  • the pivoting pallet can drive the firing pin with an energy appropriate kinetics, it is in principle necessary for the latter to have a sufficient which implies the existence of a non-negligible gap between the pallet and the cylinder head magnetic, requiring in turn a sufficient cylinder head volume to overcome the reluctance thus created.
  • the choice a pivoting pallet is not without impact on the size of the system, because to be able to train a striker in good conditions, it must have a relatively long length compared to the available volume in the case.
  • the present invention proposes to remedy this drawback by offering a configuration allowing in particular the increase of the stroke length without simultaneous increase in volume.
  • Another object of the invention consists in carrying out a configuration much easier to manufacture and mount than the rotary vane release.
  • the invention can be implemented without major change in the two possible architectures resulting from the positioning of the fixed contact on one or other of the two conduction plates arc delimiting the arc extinction chamber of a circuit breaker.
  • the essential characteristic of the trigger of the invention lies in that the pallet is movable and guided in translation in one side of the cylinder head following a stroke for unlocking the lock mechanism in case of overcurrent.
  • This translative configuration allows to modify the length of the race of the palette without substantially changing the trigger volume. She permits also lead to a much more compact configuration, the palette being almost totally integrated with the volume of the breech, unlike what exists in a rotating configuration.
  • the air gaps relating to the pallet on the one hand, and to the supporting arm the movable contact on the other hand are located on two contiguous sides of the breech. he This is another notable difference from rotating configurations in which the pallet is active on one side of the breech opposite to that which makes facing the arm supporting the moving contact.
  • the yoke of the trigger of the invention is composed of two armatures equipping the ends of the nucleus and developing in the direction from each other on the sides provided with a gap.
  • this breech can be composed of two U's sharing the same jambs and whose bases in two perpendicular planes include the air gaps respectively of the arm supporting the moving contact and pallet.
  • the pallet has at least one non parallel to the direction of movement.
  • the latter has a shape, for example trapezoidal, adjusting in actuating position in the space between the two armatures.
  • This trapezoidal shape is particularly well adapted in that it allows the realization, in the rest position of the pallet, two air gaps obliques that generate attraction forces with a component parallel to the axis of movement of the pallet.
  • the resultant parallel components audit axis generates its axial displacement towards the arm supporting the contact mobile.
  • a firing pin is more firmly attached to the pallet, and has a stud protruding from its portion at the front considered relative to in the sense of displacement, intended to strike the lock mechanism for the unlock.
  • This striker is not made of the same material as the pallet, since it does not have any magnetic function, but it is fixed there to fulfill its mechanical function.
  • the pallet may comprise a means of attachment to the lock allowing the unlocking of the latter by traction when moving.
  • the armatures of the cylinder head are symmetrical to one another by relative to a median plane transverse to the nucleus. This symmetry, which is not a functional need, nevertheless simplifies the manufacture and assembly of the magnetic release according to the invention.
  • the reinforcements are notably positioned and fixed one by relationship to the other by a piece forming in addition a bottom to the space between said reinforcements in each side optionally comprising a pallet, each piece and its pallet being further provided with centering means and translational guidance of said pallet in said space.
  • This piece does not fulfill a magnetic function, but it facilitates the manufacture of the cylinder head, and therefore the trigger of the invention. It also has auxiliary mechanical functions allowing the striker to fulfill its function mechanical relative to the arm supporting the movable contact.
  • said centering and guiding means consist of a slideway formed in said positioning and fixing part of frames, in which slides a profile reported to the pallet.
  • the return mechanism of the pallet is set to said profile reported to the pallet.
  • the pallets are two in number. Such a This configuration makes it possible, if necessary, to improve the mechanical performance of the trigger at the moment of disjunction.
  • the two pallets can be arranged in sides parallel of the trigger, or even be joined to each other.
  • the magnetic release according to the invention comprises a magnetic yoke formed of two armatures (1, 2) constituting a first air gap (3) within which moves an arm (4) supporting the moving contact, and a second gap (5) cooperating with a movable pallet (6).
  • FIG. 2 shows, however, more precisely the shape of the pallet (6), and therefore the gap (5).
  • They are trapezoidal in shape, the volume of the pallet (6) adapting exactly to the recess forming the air gap (5), in the actuating position.
  • the forms of the gap (5) and the pallet (6) allow a displacement of the latter according to the arrow F, displacement that is counteracted below a certain value current threshold by the existence of a spring (R) shown diagrammatically in FIG. spring is for example fixed to the long side of the trapezium, whose small side is equipped with a striker (7) whose trajectory meets the arm (4) support of the contact movable when the pallet (6) moves from its rest position to its position actuating.
  • a spring shown diagrammatically in FIG. spring is for example fixed to the long side of the trapezium, whose small side is equipped with a striker (7) whose trajectory meets the arm (4) support of the contact movable when the pallet (6) moves from its rest position to its position actuating.
  • the mechanical and magnetic conditions are such that the kinetic energy of the striker is sufficient to pull the movable contact from the fixed contact in case of overcurrent generating disjunction.
  • the trigger of the invention is in fact a magnetic actuator sufficiently powerful to proceed with the separation of the fixed and mobile contacts in the conditions that occur in case of overcurrent requiring disjunction.
  • the coil consists of a half turn of copper, which corresponds to a significant reduction in the amount of copper used and is economically quite favorable.
  • Figure 4 reveals the part (12) forming the bottom of the space between the reinforcement (1, 2), which assists the relative positioning of said armatures (1, 2), and which further comprises means for centering and guiding in translation of the pallet (6).
  • this piece (12) does not exert any magnetic function, and is therefore only necessary on a purely mechanical.
  • FIGS. 5 to 7 make it possible to clarify the arrangement relative of the different constituents of the trigger according to the invention.
  • Figure 5 particularly shows the mechanical relationship between the pallet (6) on the one hand and the firing pin (7) on the other hand.
  • the sliding relationship between the pallet (6) and the connecting piece (12) is also represented in this figure.
  • Figures 6 and 7 illustrate the structure of the magnetic yoke represented by the frames (1, 2). It develops in such a way that it forms a U in two perpendicular planes which are precisely represented respectively in Figures 6 and 7.
  • the base of the U is interrupted by the gap (3) in which moves the support arm (4) of the movable contact (9).
  • the base of the U is interrupted by the gap (5) in which the pallet (6) moves.
  • This one is mechanically connected to the piece (12) via sliding means (13) which move in a slide in said part (12).

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Slot Machines And Peripheral Devices (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Massaging Devices (AREA)
  • Push-Button Switches (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
EP02360176A 2002-06-17 2002-06-17 Elektromagnetischer Auslöser mit linear bewegtem Tauchkolben Expired - Lifetime EP1376639B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP02360176A EP1376639B1 (de) 2002-06-17 2002-06-17 Elektromagnetischer Auslöser mit linear bewegtem Tauchkolben
ES02360176T ES2227412T3 (es) 2002-06-17 2002-06-17 Disparador electromagnetico con paleta movil segun un desplazamiento rectilineo.
AT02360176T ATE275757T1 (de) 2002-06-17 2002-06-17 Elektromagnetischer auslöser mit linear bewegtem tauchkolben
DE60201183T DE60201183T2 (de) 2002-06-17 2002-06-17 Elektromagnetischer Auslöser mit linear bewegtem Tauchkolben

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02360176A EP1376639B1 (de) 2002-06-17 2002-06-17 Elektromagnetischer Auslöser mit linear bewegtem Tauchkolben

Publications (2)

Publication Number Publication Date
EP1376639A1 true EP1376639A1 (de) 2004-01-02
EP1376639B1 EP1376639B1 (de) 2004-09-08

Family

ID=29716965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02360176A Expired - Lifetime EP1376639B1 (de) 2002-06-17 2002-06-17 Elektromagnetischer Auslöser mit linear bewegtem Tauchkolben

Country Status (4)

Country Link
EP (1) EP1376639B1 (de)
AT (1) ATE275757T1 (de)
DE (1) DE60201183T2 (de)
ES (1) ES2227412T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1594149A1 (de) * 2004-05-06 2005-11-09 Hager Electro S.A. Magnetischer Überstromauslöser mit Torsionsfeder

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0693765A1 (de) * 1994-07-18 1996-01-24 Schneider Electric Sa Elektromagnetischer Auslöser für einen Niederspannungsschutzschalter
EP0794547A1 (de) * 1996-03-08 1997-09-10 Schneider Electric Sa Elektrischer Schutzschalter mit elektromagnetischen Betätiger und Betätigungsmechanismus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0693765A1 (de) * 1994-07-18 1996-01-24 Schneider Electric Sa Elektromagnetischer Auslöser für einen Niederspannungsschutzschalter
EP0794547A1 (de) * 1996-03-08 1997-09-10 Schneider Electric Sa Elektrischer Schutzschalter mit elektromagnetischen Betätiger und Betätigungsmechanismus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1594149A1 (de) * 2004-05-06 2005-11-09 Hager Electro S.A. Magnetischer Überstromauslöser mit Torsionsfeder
WO2005122202A1 (fr) * 2004-05-06 2005-12-22 Hager Electro S.A.S. Sous-ensemble magnetique a ressort de torsion
CN1998058B (zh) * 2004-05-06 2010-11-03 黑格电子股份有限公司 具有扭矩弹簧的磁性子部件

Also Published As

Publication number Publication date
ES2227412T3 (es) 2005-04-01
DE60201183D1 (de) 2004-10-14
ATE275757T1 (de) 2004-09-15
EP1376639B1 (de) 2004-09-08
DE60201183T2 (de) 2005-10-13

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