EP1220255B1 - Contacteur à commande électromécanique comportant un pont de contact à ouverture dont le ressort est indépendant - Google Patents

Contacteur à commande électromécanique comportant un pont de contact à ouverture dont le ressort est indépendant Download PDF

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Publication number
EP1220255B1
EP1220255B1 EP01403376A EP01403376A EP1220255B1 EP 1220255 B1 EP1220255 B1 EP 1220255B1 EP 01403376 A EP01403376 A EP 01403376A EP 01403376 A EP01403376 A EP 01403376A EP 1220255 B1 EP1220255 B1 EP 1220255B1
Authority
EP
European Patent Office
Prior art keywords
contact
compartment
armature
contact bridge
spring
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.)
Expired - Lifetime
Application number
EP01403376A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1220255A1 (fr
Inventor
Antoine Peron
Pierre Résidence les Hauts d'Antibes Koch
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.)
Legrand SNC
Legrand France SA
Original Assignee
Legrand SA
Legrand SNC
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 Legrand SA, Legrand SNC filed Critical Legrand SA
Publication of EP1220255A1 publication Critical patent/EP1220255A1/fr
Application granted granted Critical
Publication of EP1220255B1 publication Critical patent/EP1220255B1/fr
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
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts

Definitions

  • a contactor of this type is known from FR-2 756 092 in the name of the applicant.
  • the contact bridges are embedded on the actuator with their contact spring.
  • the contact spring of an opening contact bridge therefore acts against the return spring of the movable armature since it pushes it towards its working position while the return spring pushes it towards its rest position.
  • the document FR-2 652 947 provides for constituting a fixed support for the contact springs by means of a wafer fixedly mounted in the housing.
  • the invention aims to provide a contactor of the aforementioned type, which is both reliable and easy to implement, and which works as well with contact bridges of the "open” type with contact bridges of the type "Closed".
  • This contact spring is thus independent of the actuator, so that it does not act against the return spring in the rest position of the moving armature.
  • the contactor is thus faster, more accurate and more reliable.
  • the actuator comprises a contact block having at least one compartment capable of receiving a closing contact bridge.
  • This compartment is delimited longitudinally by two opposite transverse faces, one of which forms said first abutment surface, while the other forms a bearing surface for the spring of the contact bridge so that the contact bridge assembly - Spring is embedded in said contact block.
  • the compartment is for example closed, on the side of said bearing surface of the housing, by a partition having two opposite faces, one of which, turned towards the inside of the compartment, forms the first abutment surface, while the other forms the second abutment surface.
  • the contact block may comprise a second compartment superimposed on the first and separated from it by said partition, this second compartment being capable of receiving an opening contact bridge.
  • This second compartment can be separated from said bearing surface of the housing by a wall in which is formed a through hole forming a passage for the spring of the opening contact bridge.
  • this spring has, excluding stress, a pitch of a helix whose value is greater than that of the thickness of the wall in which the through hole is made.
  • the actuator comprises a contact block comprising at least one compartment capable of receiving a closing contact bridge or an opening contact bridge.
  • This compartment is for example delimited longitudinally by two opposite faces, one of which forms said first abutment surface and the other forms said second abutment surface, said compartment being separated from said bearing surface of the casing by a wall of which one face , turned towards the inside of the compartment, forms said first bearing surface, and in which is formed a through hole forming a passage for the spring of the opening contact bridge.
  • the actuator is U-shaped section flanking the fixed armature, and has a transverse base forming said door block contact, and two longitudinal branches facing, projecting from the contact block, and each fixed at one end to said movable armature.
  • the return spring is located between the contact block and the housing, on which it bears.
  • the return spring is supported on the bearing surface of the housing.
  • the return spring is firstly inserted into a well of the contact block, and secondly fitted on a protruding stud of the housing.
  • this well is between two contact door of the contact block, each contact door having at least one compartment as described above.
  • the contactor 1 comprises a housing 2 in which is housed an electromagnet 3 whose power control the operation of the electrical apparatus.
  • the housing 2 comprises a housing body 4 intended to be removably attached to a rail of an electrical cabinet (not shown) by means of a fastening system consisting of a pair of claws 5, 6 facing each other, at least one of which is sliding, and is urged towards the other 6 by a return spring 7.
  • the casing 2 further comprises a cover 8 which overcomes the casing body 4 while being both snapped and snapped into this one.
  • the cover 8 is in the form of a cap and has a nose 9 intended to be engaged in the window of a plastron (not shown) of the electrical cabinet, to provide at least visual access to the contactor 1.
  • the electromagnet 3 comprises, on the one hand, a fixed part 10 including a coil 11 supported by a casing 12 fixed to the casing 2 as well as a fixed armature 13 associated with the coil 11, and, on the other hand, a mobile armature 14 located opposite the fixed armature 13.
  • the movable armature 14 is adapted to take a rest position (FIGS. 2, 3, 6, 8, 9, 12, 14) in which it is spaced apart from the fixed armature 13 while being situated at an air gap distance from that and a working position (FIGS. 4, 5, 7, 10, 11, 13) in which it is pressed against the fixed armature 13.
  • the moving armature 14 is biased towards its rest position by a return spring 15 which bears against the casing body 4.
  • An actuator 16 is coupled to the moving armature 14 to drive a contact bridge 17, 17 'adapted to establish an electrical connection between a first and a second conductor 18, 19, mounted in the housing body 4, and located in look.
  • the contactor 1 of the bipolar type comprises two first conductors 18 and two second conductors 19.
  • the contactor 1 For its connection to the electrical network, the contactor 1 comprises two first power terminals 20 arranged on the same side of the housing 2, one of which is intended to connect one of the first conductors 18 to a pole of the network, while that the other is intended to connect the other first conductor 18 to another pole of the network.
  • Two second power terminals 21 are also provided for similarly connecting the second conductors 19 to the electrical apparatus.
  • each power terminal 20, 21 is arranged to clamp a stripped electrical wire of the power grid.
  • each terminal 20, 21 comprises a movable connecting element 22 slidably mounted in the housing body 4, the sliding of this element 22 being controlled by a clamping screw 23 engaged in a hole 24 of the cover 8, and which , bearing on the conductor 18, 19, causes by its rotation the pinching of the stripped wire between the connection element 22 and the conductor 18, 19, on which the connection element 22 is engaged.
  • Each power terminal 20, 21 is mounted in the housing body 4 opposite a window 25 formed therein for the passage of the corresponding stripped wire of the electrical network.
  • connection element 22 has a projection 26 forming a flap capable of closing the window 25 during the sliding of the the element 22 ( Figure 2).
  • the contactor 1 further comprises two control terminals 27 for connecting the coil to a power control circuit thereof.
  • Each first conductor 18 has an end portion 28 whose end carries or forms a fixed contact 29, while each second conductor 19 has an end portion 30 disposed facing the end portion 28 of the first conductor 18, this end portion 30 carrying or also forming a fixed contact 31.
  • Each contact bridge 17, 17 ' is in turn itself in the form of a conductive strip whose ends carry or form a movable contact 32, 33 may be applied against a fixed contact 29, 31 to connect them conductors 18, 19.
  • the contact bridge 17, 17 ' is able to occupy a closed position in which it establishes an electrical connection between the fixed contacts 29, 31 via, respectively, movable contacts 32, 33, and an open position in which it is at a distance from the conductors 18, 19, these movable contacts 32, 33 then being spaced apart from the fixed contacts 29, 31.
  • the contact bridge 17 is arranged to occupy its closed position, that is to say connect the fixed contacts 29, 31, in the working position of the mobile armature 14, as shown in FIGS. 4 and 5, as well as in FIG. 7.
  • Such a contact bridge 17 is said to be of the "closed" type.
  • the contact bridge In the open mode of operation, the contact bridge, referenced 17 'for the sake of clarity, is arranged to occupy its closed position, that is to say to connect the fixed contacts 29, 31, in the position of rest of the mobile armature 14, as shown in Figures 8 and 9, as well as in Figure 12.
  • Such a contact bridge 17 ' is said to type "open".
  • the contactor 1 is arranged to operate both on opening and on closing, as is apparent from what follows.
  • the actuator 16 has a U-shaped section and comprises a transverse base forming a contact block 34 which project two parallel parallel branches 35 which each have an end 36 engaged on the end of a transverse rod 37 passing through a bore of the mobile armature 14, so that the actuator 16 is coupled to the movable armature 14.
  • the contact block 34 comprises two paired contact doors 38 located substantially in the extension of the branches 35.
  • Each contact door 38 comprises two superimposed compartments, namely an upper compartment 39 adapted to receive a contact bridge 17 of the closing type, and a lower compartment 40 adapted to receive a contact bridge 17 'of the opening type.
  • the upper compartment 39 and the lower compartment 40 are separated from each other by a partition 41 having two opposite faces respectively forming a first abutment surface 42 looking towards the movable armature 14, and a second abutment surface 43 looking at to the opposite.
  • the upper compartment 39 is delimited longitudinally on the one hand by the first abutment surface 42, on the other by a transverse face 44 facing it, and, transversely, by two upper longitudinal walls 75, facing each other.
  • a contact bridge 17 of the closing type is inserted in the upper compartment 39 being biased towards its closed position by a contact spring 45 operating at the compression, which is associated with it, which is supported on the one hand on the contact bridge 17, and on the other hand against the transverse face 44, so that the contact bridge assembly 17- spring 45 is embedded in the contact block 34.
  • the contact block 34 moves longitudinally in a space 46 formed between, on the one hand the electromagnet 3, more particularly the fixed armature 13, and on the other hand a bottom wall 47 of the casing body 4.
  • the lower compartment 40 is itself delimited longitudinally, on the one hand by the partition 41, and on the other hand by a wall 48 substantially parallel to the partition 41, forming a free end of the actuator 16, and separating the compartment lower 40 of the bottom wall 47.
  • the lower compartment 40 is defined transversely by two lower walls 78, longitudinal, opposite.
  • a contact bridge 17 'with opening is inserted in the lower compartment 40.
  • the wall 48 makes it possible in particular to stiffen the contact block 34, while the through hole 51, which here has a diameter slightly greater than that of the spring 49, avoids any bending and inadvertent escape thereof.
  • the spring 49 has, without stress, a pitch of a helix, that is to say a distance between two successive turns, of value less than that of the thickness of the partition 48, so as to avoid any risk of engagement of the spring 49 with the partition 48 between two successive turns.
  • the electromagnet 3 is now described in more detail.
  • the carcass 12 is substantially I-shaped section, and comprises a base 54 and a plate 55 connected by a hollow central core 56 around which is wound the coil 11 which is trapped between the base 54 and the plate 55.
  • Each armature 13, 14 has an E-shaped section, and has two end branches 57 flanking the coil 11 and its carcass 12, as well as a central branch 58 engaged inside the core 56.
  • the carcass 12 has four feet 59 which project from the base 54 in the direction of the bottom wall 47 of the casing body 4.
  • the latter comprises four tabs 60 disposed opposite the feet 59.
  • the tabs 60 protrude from the bottom wall 47 with which they are integral with respect to the carcass 12.
  • each conductor 18, 19 is immobilized while being tight, close to the fixed contact 29, 31, between a first jaw belonging to the housing 2 and formed by one of the legs 60, and a second jaw belonging to the carcass 12, and formed by the foot 59 corresponding.
  • the assembly of the casing 12 to the casing body 4 and the tightening of the end portions 28, 30 of the conductors 18, 19 are provided by two screws 61.
  • Each screw 61 is inserted into a through hole 62 formed in the bottom wall 47 of the housing body 4, and forming a passage for the screw 61, the latter being further engaged in a threaded bore 63 of the base 54, located in view of the through hole 62 and coaxial with it.
  • the through hole 62 is formed in a chimney 64 projecting from the bottom wall 47 towards the casing 12.
  • the bore 63 is in turn made in a barrel 65 protruding from the base 54 towards the bottom wall 47, opposite the chimney 64.
  • the clearance J is the distance that separates the chimney 64 from the drum 65 when the assembly of the carcass 12 to the casing body 4 is made, at least before the tightening of the conductors 18, 19 is achieved.
  • the bottom wall 47 has the ability to flex when the screws 61 are tightened, towards the carcass 12.
  • the actuator 16 is guided in its movement by grooves provided for this purpose in the housing body, while it is biased towards the rest position by the return spring 15 which is compressed, in the space 46, between the contact block 34 and the bottom wall 47 of the casing body 4.
  • the return spring 15 is firstly inserted into the bore of a cylindrical well 66 made in the contact block 34 and located between the contact holders 38.
  • the return spring 15 is further fitted on a stud 53 forming a stop for the spring 15, and protruding from the bottom wall 47 with which it came from material.
  • the contactor 1 comprises other constituent elements, which are briefly described at present.
  • the plate 67 also forms a guide for a lever 69, one end of which is fitted on the rod 37, whereas the other end forms a retractable sight 70 which can appear or disappear, depending on the position of the mobile armature 14, facing a window 71 closed by a flap 72 allowing access to the pusher 68.
  • the base 54 of the carcass 12 has, between two adjacent feet 59 situated on the same side of the base 54, a housing 73 into which the fixed armature 13 is introduced.
  • This housing 73 has a transverse abutment surface 74 extending between the feet 59, looking towards the bottom wall 47 of the casing body 4, and against which the fixed armature 13 is pressed in the working position of the armature 14.
  • each contact door 38 comprises a single compartment of the type of the lower compartment 40 described above and adapted to receive both a closure type contact bridge and a contact bridge of the type to opening.
  • first abutment surface 42 is carried by the wall 48 of the compartment, while the second abutment surface 43 is formed by an upper transverse face of the compartment, facing the first abutment surface 42.
  • the conductors are immobilized by being clamped between the jaws 59, 60, elsewhere than at their ends, according to the configuration of the contactor, the shape or arrangement of the conductors.
  • the contactor is multipole, for example of the quadrupole type, the contact block comprising for this purpose two pairs of contact door, one of these pairs operating for example at the opening, while the other of these pairs works on closing.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Contacts (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)
  • Breakers (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Valve Device For Special Equipments (AREA)
  • Electromagnets (AREA)
EP01403376A 2000-12-28 2001-12-27 Contacteur à commande électromécanique comportant un pont de contact à ouverture dont le ressort est indépendant Expired - Lifetime EP1220255B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0017217A FR2819096B1 (fr) 2000-12-28 2000-12-28 Contacteur a commande electromecanique comportant un pont de contact a ouverture dont le ressort est independant
FR0017217 2000-12-28

Publications (2)

Publication Number Publication Date
EP1220255A1 EP1220255A1 (fr) 2002-07-03
EP1220255B1 true EP1220255B1 (fr) 2006-03-01

Family

ID=8858337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01403376A Expired - Lifetime EP1220255B1 (fr) 2000-12-28 2001-12-27 Contacteur à commande électromécanique comportant un pont de contact à ouverture dont le ressort est indépendant

Country Status (6)

Country Link
EP (1) EP1220255B1 (es)
AT (1) ATE319182T1 (es)
DE (1) DE60117512T2 (es)
ES (1) ES2258518T3 (es)
FR (1) FR2819096B1 (es)
PL (1) PL199356B1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108620865B (zh) * 2017-03-22 2024-03-08 浙江正泰电器股份有限公司 接触器生产线

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1831287U (de) * 1956-11-13 1961-05-18 Licentia Gmbh Aufhaengung des magnetankers an dem aus isolierstoff bestehenden beweglichen schaltkopf eines magnetischen schalters.
DE1239752B (de) * 1964-09-12 1967-05-03 Continental Elektro Ind Ag Loesbare Verbindung einer Geraeteeinheit
CH429943A (de) * 1966-02-09 1967-02-15 Maier & Cie C Magnetspule mit Kontakt
ES2073329T3 (es) * 1993-09-27 1995-08-01 Hager Electro Pieza que delimita las camaras de corte de arco.

Also Published As

Publication number Publication date
PL199356B1 (pl) 2008-09-30
DE60117512T2 (de) 2006-10-19
EP1220255A1 (fr) 2002-07-03
DE60117512D1 (de) 2006-04-27
ES2258518T3 (es) 2006-09-01
FR2819096A1 (fr) 2002-07-05
ATE319182T1 (de) 2006-03-15
PL351299A1 (en) 2002-07-01
FR2819096B1 (fr) 2003-03-28

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