EP0913847A1 - Anlasser schütze mit eingebauter verbesserten beweglichen kontakt und fahrzeuganlasser mit solchen relais versehen - Google Patents

Anlasser schütze mit eingebauter verbesserten beweglichen kontakt und fahrzeuganlasser mit solchen relais versehen Download PDF

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Publication number
EP0913847A1
EP0913847A1 EP98120145A EP98120145A EP0913847A1 EP 0913847 A1 EP0913847 A1 EP 0913847A1 EP 98120145 A EP98120145 A EP 98120145A EP 98120145 A EP98120145 A EP 98120145A EP 0913847 A1 EP0913847 A1 EP 0913847A1
Authority
EP
European Patent Office
Prior art keywords
movable contact
contact
plate
contactor
control rod
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
EP98120145A
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English (en)
French (fr)
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EP0913847B1 (de
Inventor
Jean-Francois Quentric
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.)
Valeo Equipements Electriques Moteur SAS
Original Assignee
Valeo Equipements Electriques Moteur SAS
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Publication date
Application filed by Valeo Equipements Electriques Moteur SAS filed Critical Valeo Equipements Electriques Moteur SAS
Publication of EP0913847A1 publication Critical patent/EP0913847A1/de
Application granted granted Critical
Publication of EP0913847B1 publication Critical patent/EP0913847B1/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
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
    • H01H51/065—Relays having a pair of normally open contacts rigidly fixed to a magnetic core movable along the axis of a solenoid, e.g. relays for starting automobiles

Definitions

  • the present invention relates to a contactor starter for a combustion engine of a motor vehicle.
  • the invention relates more particularly to a starter switch of the type in which a movable contact in plate shape is crossed in the center by a control rod on which the movable contact is slidably mounted between a advanced rest position to which he is called back elastically, by means acting on the central part of the rear face of the movable contact that surround a hole for the passage of the control rod, and in which the contact mobile is in axial support, by its front face, against means stop integral with the control rod, and a position of contact in which the two opposite transverse ends of the front face of the movable contact plate cooperate with fixed contact terminals of the contactor.
  • the presence of the central hole for the passage of the rod particularly reduces the section of the plate contact mobile in its central part.
  • Another solution is to locally increase the lateral width of the contact plate, especially in its central part around the hole for the passage of the rod ordered.
  • the overall overall width movable contact plate is increased, which affects the location of the contactor control terminal and different electrical connections located in the radial plane of the plate, thus leading to an overall increase in the outside diameter of the contactor cover.
  • These additional fixing means are constituted by a claw fixing washer which is force-fitted on a free end of the sliding control rod and which immobilizes the thrust washer in axial support against a radial shoulder of the control rod.
  • the object of the invention is to propose an improvement to the design of a contactor of the type mentioned previously which overcomes the drawbacks which have just been mentioned.
  • the invention provides a contactor for motor vehicle starter of the type in which a movable contact in the form of a plate is crossed at its center by a control rod on which the movable contact is mounted sliding between an advanced rest position towards which it is recalled elastically, by means acting on the part center of the rear face of the movable contact that surrounds a hole for the passage of the control rod, and in which the movable contact is in axial support, by its front face, against stop means integral with the control rod, and a remote contact position in which both ends opposite transverse from the front face of the movable plate of contact cooperate with fixed contact terminals of the contactor, the movable contact plate being delimited by two opposite side edges each of which, at least in the vicinity of the central part, extended by a side orientation cheek axial so that, at least in its central part, the movable contact has, in axial section, a profile substantially U-shaped, said movable contact plate being generally rectangular in shape with two edges longer sides which each extend by a side cheek of
  • the particular shape of the mobile contact increases considerably its rigidity and thus reduces the thickness of the copper foil in which the plate mobile is cut and folded, while having a section of copper sufficient for current flow.
  • the invention also relates to a vehicle starter. automobile characterized in that it comprises a contactor in accordance with the teachings of the invention.
  • the contactor 10 partially illustrated in FIG. 1, includes a housing 12, of general axis X-X, inside which an inductor winding 14 is intended to cause, using a polar mass 16, an axial magnetic field capable of axially moving a movable core 18 between a position rear rest, shown in Figure 1, and a position advanced control or contact which is axially offset to the right considering figure 1.
  • the open front axial end 20 of the housing is closed by a cover 22 made of insulating material, one wall of which transverse 24 with radial orientation carries an input terminal 26 connected to a vehicle battery (not shown) automobile and a power supply terminal 28 connected to the engine electric motor (not shown) of the starter of the vehicle fitted with the contactor 10.
  • Terminals 26 and 28 each have a terminal 30, 32 which is arranged inside the cover 22 of the contactor.
  • the heads 30, 32 constitute two fixed contacts which are intended to be electrically connected by a movable contact 34 which, according to the known design illustrated in FIG. 1, is produced as a thick rectangular plate in copper, i.e. an electrically conductive material.
  • the movable contact 34 is arranged, according to its largest length, transversely inside the contactor 10 and more particularly inside the cover 22.
  • the movable contact 30 is arranged axially between the front transverse face 36 of the polar mass 16 and the heads fixed contacts 30 and 32.
  • the movable contact 34 can be moved axially in the contactor 10 between a first position called rest, in which the electrical circuit enters terminals 26 and 28 is open, which is shown in the figure 1 and in which the contact 34 is in axial abutment against the front axial face 36 of the polar mass 16, and a position contact advance, in which the electrical circuit is closed, which is offset axially to the right considering FIG. 1 and in which the contact 34 comes to bear axially, by the opposite transverse end portions 35 of its face transverse front, against the heads of terminals 30 and 32 of so as to connect them electrically.
  • the contactor 10 can control the supply of the starter motor in electric current supplied by the vehicle battery.
  • the movements of the movable contact 34 to the interior of the contactor 10 are controlled via an axial control rod 38 which is capable of being moved axially, from back to front, in contactor 10 by the movable core 18.
  • the rod 38 has a rear guide section 40 which passes axially through the polar mass 16, in which it is guided in sliding, and whose rear axial end 42 is controlled by the movable core 18.
  • the rear guide section 40 extends axially forward by a central section 44, of larger diameter, on which the movable contact 34 is slidably mounted and which is delimited axially towards the rear by an external radial collar 46 of larger diameter.
  • control rod 38 ends with an additional free end front section 48 small diameter which is delimited, in relation to the central section 44, by a shoulder 51.
  • the central section 44 is thus delimited axially by two radial shoulder surfaces 49 and 51.
  • the movable contact 34 has a hole or orifice circular central 50 to allow its sliding mounting, between an advanced rest position, illustrated in FIG. 1, and an active backward position, on the central cylindrical section 44 of the control rod 38.
  • a thrust washer 52 is provided which is engaged on the free end section 48 of the rod control 38 on which it is kept pressed against the radial shoulder 51 by a claw washer 53 which is press fit on the free end section before 48.
  • a helical compression spring 54 also called compensation or contact spring, is arranged around the central section 44 of the control rod 38 between the shoulder radial front 49 of the collar 46 and the central part of the face rear 33 of the movable contact plate 34 which surrounds the hole central 50, so as to permanently contact the contact movable 34 axially towards its rest position, advanced by relative to the rod 38, in which it is in axial abutment against the stop means constituted by the washer 52.
  • a return spring 55 which is a helical compression spring which is arranged axially at the front of the control rod 38 and which bears axially on the one hand against the front transverse face of the washer claws 53 and, on the other hand, against a portion opposite the rear inner face of the transverse wall 24 of the cover 22.
  • Compensation spring 54 causes displacement axial of the movable contact 34 relative to the contactor 10 towards its closed circuit position in which the movable contact 34 is in axial support, by its parts 35, against the two heads of terminals 30, 32.
  • control rod 38 then continues its movement axial forward under the action of the movable core 18, which causes axial compression of the spring 54 of the movable contact 34 because the movable contact 34 is immobilized in support axially against terminals 26 and 28.
  • the movable contact 34 then moves axially by relative to the control rod 38 from its advanced rest position towards a retracted active position, against the spring of compensation 54.
  • the movable contact plate 34 is a plate of general shape rectangular made by cutting and folding in a sheet of thin copper, i.e. in copper foil thickness significantly reduced compared to that depending on the condition of the technique illustrated in Figure 1.
  • the main part, here of rectangular outline, of the movable contact plate 34 is delimited laterally by two parallel and opposite side edges 60 which determine the width of the movable contact plate 34, and by two edges parallel and opposite transverse lines 62 which determine the transverse length of the plate 34.
  • the main part of the control plate 34 of course has a central hole 50 whose diameter corresponds substantially to that of the diameter outside of the central section 44 of the control rod 38.
  • each of the two lateral edges 60 extends axially, here towards the rear, by a lateral cheek 64.
  • the two cheeks 64 are made integrally by folding with the rectangular main part of the plate 34.
  • the two cheeks 64 are identical and each has its maximum height H in its central part, i.e. in the vicinity of the hole central 50 so as to give the movable contact plate 34 a cross section along the Y-Y axis, U-shaped.
  • each of the cheeks 64 decreases progressively from the part central towards the transverse end edges 62.
  • the bending moments of the forces applied to the movable plate 34 gradually decrease in direction transverse from the central part with the hole 50, and therefore the wings 64 need not be of significant height in the vicinity of the ends 62.
  • the thin copper foil design of contact tab 34 allows to achieve the latter with means, made come from material by cutting and folding, for its axial retention relative to the control rod 38 so as to remove the thrust washer 52 and claw washer 53 according to the state of the technique.
  • two diametrically opposed tongues or lugs 66 are cut out simultaneously with the central hole 50 and they extend radially towards the center.
  • Each lug 66 is delimited by an end edge free 68, parallel to the edges 62 of the contact plate 34, and it extends transversely outwards to its fold base 70 which is located radially outwards by relative to the contour of the hole 50 so as to have lugs 66 of sufficient length which are delimited laterally by cutting slots 72 parallel to the side edges 60.
  • the lugs 66 are folded axially towards the rear, forming a acute angle ⁇ which determines a transverse distance D1 between their edges 68 which is greater than the initial distance D0 between these edges at the end of the initial cutting operation (shown in dotted lines in Figure 3).
  • the section central 44 of the guide rod 38 comprises two axial grooves 74 which are diametrically opposite and which open radially outward into the surface cylindrical outer 45 of the section 44.
  • the width of the axial grooves 74 is slightly greater than the width of the pins or tabs 66 so that each of these pins can be received in axial sliding in a corresponding groove 74.
  • the depth of the grooves 74 is a depth stepped.
  • each groove 74 has a section main rear 76 of great depth, that is to say that the distance D2 separating the opposite bottoms of these sections 76 is the weaker and slightly less than the distance D0 previously mentioned.
  • the axial length L of the very deep section 76 grooves 74 is at least equal to the axial travel of the contact mobile 34 between its forward and backward positions.
  • Each groove 74 opens axially forward in the shoulder 51 by a lower front section 78 so that the distance D3 separating the bottoms of the sections 78 is slightly less than the distance D1 mentioned previously.
  • These tooling elements include a rear element 80 which is essentially an axial support element towards the left against which the control rod 38 is supported by its flange 46, and a front element 82 for positioning and deformation of the movable contact plate 34.
  • This axial action has the effect, due to the support free end edges 68 of the lugs 66 against the face rear 84 of the sections 76 of the grooves 74, to cause a progressive deformation of the lugs 66, that is to say that these the latter are brought back into the general plane of the movable plate contact 34 to re-occupy their initial position, that is to say after cutting and before folding, as they are shown in Figure 7.
  • the pins 66 extend radially inward in large sections depth 76 of axial grooves 74 and distance D0, greater than D2 and less than D3, is such that the plate contact mobile 34 can slide axially in the grooves 74 while being retained axially forward due to the coming into abutment of the front faces of the lugs 66 against the face before 86 of the sections 76 of the grooves 74.
  • the lateral wings 74 can be oriented axially towards the front, i.e. towards the return spring 55 and this in order to reduce the overall width of the plate movable contact 34 which, in the embodiment illustrated in the figures, depends on the outside diameter of the spring compression 54.
  • the initial folding of the tabs can be done the other way around, i.e. that they then initially project axially forward beyond face 35, which however requires calling to another design of a folding tool of suitable shape to allow the lugs 66 to be straightened and brought back into the plane of the movable contact plate 34.
  • the movable plate need contact 34 is of constant width, its width possibly being reduced in the vicinity of opposite transverse ends 62 because the material is only necessary to ensure contact punctual with heads 30 and 32 and bending moments are weak near these areas of contact with terminals.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Push-Button Switches (AREA)
  • Switches With Compound Operations (AREA)
  • Contacts (AREA)
EP19980120145 1997-10-28 1998-10-27 Anlasser schütze mit eingebauter verbesserten beweglichen kontakt und fahrzeuganlasser mit solchen relais versehen Expired - Lifetime EP0913847B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9713612A FR2770334B1 (fr) 1997-10-28 1997-10-28 Contacteur de demarreur comportant un contact mobile perfectionne et demarreur de vehicule automobile muni d'un tel contacteur
FR9713612 1997-10-28

Publications (2)

Publication Number Publication Date
EP0913847A1 true EP0913847A1 (de) 1999-05-06
EP0913847B1 EP0913847B1 (de) 2005-08-24

Family

ID=9512824

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980120145 Expired - Lifetime EP0913847B1 (de) 1997-10-28 1998-10-27 Anlasser schütze mit eingebauter verbesserten beweglichen kontakt und fahrzeuganlasser mit solchen relais versehen

Country Status (4)

Country Link
EP (1) EP0913847B1 (de)
DE (1) DE69831299T2 (de)
ES (1) ES2247653T3 (de)
FR (1) FR2770334B1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3597562A (en) * 1969-07-23 1971-08-03 Square D Co Movable contact structure for an electric switch
FR2538037A1 (fr) * 1982-12-21 1984-06-22 Paris & Du Rhone Axe composite de contacteur electromagnetique de demarreur electrique
DE19522404A1 (de) * 1994-06-22 1996-01-11 Valeo Equip Electr Moteur Elektromagnetischer Anlaßschalter für Kraftfahrzeuge
EP0778600A1 (de) * 1995-12-05 1997-06-11 Valeo Equipements Electriques Moteur Starter-Relais mit integrierter Rückstellfeder und Fahrzeuganlasser mit solchem Relais versehen
EP0778601A1 (de) * 1995-12-05 1997-06-11 Valeo Equipements Electriques Moteur Starter-Relais mit einem Anschlag für das bewegliches Kontakt durch Verformung hergestellt, und Fahrzeuganlasser mit solchem Relais versehen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3597562A (en) * 1969-07-23 1971-08-03 Square D Co Movable contact structure for an electric switch
FR2538037A1 (fr) * 1982-12-21 1984-06-22 Paris & Du Rhone Axe composite de contacteur electromagnetique de demarreur electrique
DE19522404A1 (de) * 1994-06-22 1996-01-11 Valeo Equip Electr Moteur Elektromagnetischer Anlaßschalter für Kraftfahrzeuge
EP0778600A1 (de) * 1995-12-05 1997-06-11 Valeo Equipements Electriques Moteur Starter-Relais mit integrierter Rückstellfeder und Fahrzeuganlasser mit solchem Relais versehen
EP0778601A1 (de) * 1995-12-05 1997-06-11 Valeo Equipements Electriques Moteur Starter-Relais mit einem Anschlag für das bewegliches Kontakt durch Verformung hergestellt, und Fahrzeuganlasser mit solchem Relais versehen

Also Published As

Publication number Publication date
DE69831299T2 (de) 2006-05-04
FR2770334B1 (fr) 2000-03-10
FR2770334A1 (fr) 1999-04-30
EP0913847B1 (de) 2005-08-24
DE69831299D1 (de) 2005-09-29
ES2247653T3 (es) 2006-03-01

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