EP0913847B1 - Contacteur de démarreur comportant un contact mobile perfectionné et démarreur de véhicule automobile muni d'un tel contacteur - Google Patents
Contacteur de démarreur comportant un contact mobile perfectionné et démarreur de véhicule automobile muni d'un tel contacteur Download PDFInfo
- Publication number
- EP0913847B1 EP0913847B1 EP19980120145 EP98120145A EP0913847B1 EP 0913847 B1 EP0913847 B1 EP 0913847B1 EP 19980120145 EP19980120145 EP 19980120145 EP 98120145 A EP98120145 A EP 98120145A EP 0913847 B1 EP0913847 B1 EP 0913847B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- moving contact
- contactor
- control rod
- plate
- axially
- 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
Links
- 239000007858 starting material Substances 0.000 title claims description 13
- 238000005452 bending Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 6
- 210000000078 claw Anatomy 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000011889 copper foil Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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 for starter for a combustion engine of a motor vehicle.
- the invention relates more particularly to a starter contactor of the type in which a moving 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 reminded elastically, by means acting on the central part of the back side of the moving 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 the means stoppers 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 mobile contact is realized in copper and it comes, according to a known design, under the shape of a thick plate cut into substantially rectangle.
- the presence of the central hole for the passage of the stem of control particularly reduces the section of the plate mobile contact in its central part.
- Another solution is to increase locally the lateral width of the contact plate, particularly in its central part around the hole for the passage of the stem of ordered.
- the overall size in width of the mobile contact plate is increased, which is detrimental to the installation of the control terminal of the contactor and different electrical connections located in the radial plane plate, thus leading to an overall increase in outer diameter of the contactor cover.
- the mounting of the compensation spring, one of which rear end bears against a radial support collar achieved came of matter with the control rod and plate mobile contact is ensured by means of a support washer in steel which is secured axially to the control rod by complementary fixing means.
- These complementary 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 that helps to remedy the disadvantages that have just been mentioned.
- the invention proposes a contactor for starter for a motor vehicle of the type in which a plate-shaped mobile contact is traversed at its center by a control rod on which the movable contact is mounted sliding between an advanced position of rest towards which he is resiliently biased by means acting on the part central of the back side of the moving contact that surround a hole for the passage of the control rod, and in which the mobile contact is axially supported by its front face against stop means integral with the control rod, and a retracted position of contact in which both ends opposite sides of 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, is extended by a lateral cheek of orientation axial so that, at least in its central part, the mobile contact has, in axial section, a profile substantially U-shaped, said movable contact plate being of generally rectangular shape with its two edges lateral sections of greater length which each extend a lateral cheek of
- FR 2 538 037 shows a contactor according to the preamble of claim 1.
- the invention also relates to a vehicle starter automobile characterized in that it comprises a contactor according to the teachings of the invention.
- the contactor 10 partially illustrated in FIG. comprises a housing 12, of general axis X-X, inside which an inductor winding 14 is intended to cause, with the aid of a polar mass 16, an axial magnetic field capable of axially moving a movable core 18 between a position back rest, shown in Figure 1, and a position Advanced control or contact that is axially shifted 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 transverse 24 of radial orientation carries an input terminal 26 connected to a battery (not shown) of the vehicle automobile and a power terminal 28 connected to the engine electric vehicle (not shown) of the starter of the vehicle equipped with contactor 10.
- the terminals 26 and 28 each comprise a head of 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 Figure 1, is made in the form of a thick rectangular plate in copper, that is to say of electrically conductive material.
- the movable contact 34 is arranged, according to its greatest length, transversely inside the contactor 10 and more particularly inside the hood 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 is likely to be moved axially in the contactor 10 between a first position said recess of rest, in which the electrical circuit between terminals 26 and 28 are open, which is shown in the figure 1 and in which the contact 34 bears axially against the front axial face 36 of the polar mass 16, and a position advanced contact, in which the electrical circuit is closed, which is shifted axially to the right considering FIG. 1 and in which the contact 34 bears axially, by the opposite transverse end portions 35 of its face transversal front, against the heads of terminals 30 and 32 of way to connect them electrically.
- the contactor 10 can control the power supply motor starter motor provided by the vehicle battery.
- the displacements of the movable contact 34 to inside the contactor 10 are controlled via of an axial control rod 38 which is likely to be moved axially from back to front in contactor 10 by the mobile core 18.
- the rod 38 has a rear guide portion 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 mobile core 18.
- the rear guide portion 40 extends axially forwardly 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 a free end front stretch 48 more small diameter that is delimited, compared 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 central circular 50 to allow its sliding assembly, between an advanced rest position, illustrated in Figure 1, and an active retracted position on the cylindrical central section 44 of the control rod 38.
- a thrust washer 52 which is engaged on the free end section 48 of the stem of command 38 on which it is held in support against the radial shoulder 51 by a claw washer 53 which is force-fitted on the free end section before 48.
- a helical compression spring 54 also called compensating spring or contact spring, is arranged around the central portion 44 of the control rod 38 between the shoulder radial front 49 of collar 46 and the central part of the face rear 33 of the movable contact plate 34 surrounding the hole central 50, so as to permanently solicit contact mobile 34 axially towards its rest position, advanced by relative to the rod 38, in which it is in axial support 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 to claws 53 and, secondly, against a portion vis-à-vis the inside rear face of the transverse wall 24 of the cover 22.
- the compensation spring 54 causes the displacement axial direction 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 displacement axial direction forward under the action of the mobile core 18, which causes the 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 through relative to the control rod 38 of its advanced rest position towards an active backward position, contrary to the jurisdiction of compensation 54.
- the movable plate 34 of contact is a plate of general shape rectangle made by cutting and folding in a sheet of thin copper, that is to say in a copper foil of significantly reduced thickness compared to that according to the state of the technique illustrated in FIG.
- the main part, here rectangular in outline, of the movable contact plate 34 is delimited laterally by two parallel and opposite lateral edges 60 which determine the width of the movable contact plate 34, and by two edges transversal parallel and opposite 62 that determine the transverse length of the plate 34.
- the main part of the control plate 34 has of course a central hole 50 whose diameter corresponds substantially to that of the diameter outside the central section 44 of the control rod 38.
- each of the two lateral edges 60 is extended axially, here to the rear, by a lateral cheek 64.
- the two cheeks 64 are made of material by folding with the rectangular main part of the plate 34.
- both cheeks 64 are identical and each has its maximum height H in its central part, that is to say in the vicinity of the hole central 50 so as to give the mobile contact plate 34 a section, transverse along the Y-Y axis, U-shaped.
- the height H each cheek 64 decreases gradually since the game centrally towards the transverse end edges 62. effect, the bending moments of the efforts applied to the moving plate 34 decrease gradually according to the direction transversal from the central part with the hole 50, and it is therefore not necessary that the wings 64 be a significant height near the ends 62.
- the Thin copper foil design of the contact tab 34 allows to realize the latter with means, realized come from matter by cutting and folding, for its axial retention relative to the control rod 38 so as to suppress the thrust washer 52 and the claw washer 53 according to the state of the technique.
- two tabs or lugs 66 are cut 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 crease of base 70 which is located radially outwards by relative to the contour of the hole 50 so as to have pins 66 of sufficient length which are delimited laterally by cutting slots 72 parallel to the side edges 60.
- the lugs 66 are bent 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 after the initial cutting operation (shown in dashed lines in Figure 3).
- the section central 44 of the guide rod 38 comprises two axial grooves 74 which are diametrically opposed and which emerge radially outward into the surface outer cylindrical 45 of the section 44.
- the width of the axial grooves 74 is slightly greater than the width of the lugs 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 comprises 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 lower and it is slightly lower than the distance D0 previously mentioned.
- the axial length L of the section 76 of great depth grooves 74 is at least equal to the axial stroke of the contact mobile 34 between its advanced and retreated positions.
- Each groove 74 opens axially forward in the shoulder 51 by a lower section 78 of lower height so that the distance D3 separating the bottoms of the sections 78 slightly less than the distance D1 mentioned previously.
- Diagram 6 also shows schematically two tooling elements to ensure in one operation mounting and retaining the movable plate of contact 34 on the control rod 38.
- These tooling elements comprise a rear element 80 which is essentially an element of axial support towards the left against which the control rod 38 is supported by its flange 46, and a front element 82 for placing and deformation of the movable contact plate 34.
- the lugs 66 extend radially inwards in the large reaches depth 76 of the axial grooves 74 and the distance D0, greater than D2 and less than D3, is such that the plate movable contact 34 can slide axially in the grooves 74 while being held axially forward because of the coming in support of the front faces of the lugs 66 against the face before 86 of the segments 76 of the grooves 74.
- the lateral wings 74 can be oriented axially towards the front, that is to say in the direction of the return spring 55 and this in order to reduce the overall width of the plate of mobile contact 34 which, in the embodiment illustrated on the figures, depends on the outer diameter of the spring of compression 54.
- the initial folding of tongues can be done in the other direction, that is to say that they then initially protrude axially forward beyond the 35 face, which requires however to appeal to another design of a folding tool of suitable shape to allow to straighten the pins 66 and bring them back into the plane of the movable contact plate 34.
- the movable plate contact 34 is of constant width, its width being reduced in the vicinity of opposite transverse ends because the material is only necessary to ensure contact punctual with heads 30 and 32 and bending moments are low in the vicinity of these contact areas with the terminals.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Push-Button Switches (AREA)
- Contacts (AREA)
- Switches With Compound Operations (AREA)
Description
- chaque joue latérale s'étend transversalement jusqu'aux deux extrémités transversales opposées du bord latéral qu'elle prolonge ;
- la hauteur axiale de chaque joue latérale est décroissante à partir de la partie centrale de la plaque mobile de contact ;
- chacune des deux joues latérales s'étend axialement vers l'arrière ;
- chacune des deux joues latérales s'étend axialement vers l'avant ;
- la largeur latérale de la plaque mobile de contact est constante ;
- la largeur latérale de la plaque mobile de contact est réduite au voisinage de ses extrémités transversales opposées ;
- le contact mobile est une plaque en tôle dont le contour et le trou central sont réalisés par découpe et dont les joues latérales sont rabattues axialement par pliage ;
- la partie centrale de la plaque mobile de contact comporte deux ergots diamétralement opposés dont chacun est reçu dans l'une de deux rainures axiales diamétralement opposées ;
- la tige de commande est réalisée par moulage, et les rainures sont réalisées venues de matière par moulage.
- la figure 1 est une vue en coupe axiale d'un contacteur de démarreur équipé d'un contact mobile réalisé selon l'état de la technique ;
- la figure 2 est une vue en section axiale, selon la ligne 2-2 de la figure 3, d'un contact mobile réalisé conformément aux enseignements de l'invention illustré avant son montage sur la tige de commande ;
- la figure 3 est une vue latérale de gauche du contact mobile de la figure 2 ;
- la figure 4 est une vue en perspective, avec un arrachement partiel, du contact mobile illustré aux figures 2 et 3 ;
- la figure 5 est une vue en perspective de l'extrémité axiale avant d'une tige de commande réalisée conformément aux enseignements de l'invention et destinée à être équipée du contact mobile illustré aux figures 2 à 4 ;
- la figure 6 est une vue en section axiale qui illustre le contact mobile de la figure 4 en cours de montage sur l'extrémité avant de la tige de commande de la figure 5 ; et
- la figure 7 est une vue similaire à celle de la figure 6 qui illustre le contact mobile en position assemblée sur la tige de commande.
Claims (11)
- Contacteur (10) de démarreur pour véhicule automobile du type dans lequel un contact mobile (34) en forme de plaque est traversé en son centre par une tige de commande (38, 44) sur laquelle le contact mobile (34) est monté coulissant entre une position avancée de repos vers laquelle il est rappelé élastiquement, par des moyens (54) agissant sur la partie centrale (33) de la face arrière du contact mobile (34) qui entourent un trou (50) pour le passage de la tige de commande (38, 44), et dans laquelle le contact mobile (34) est en appui axial, par sa face avant, contre des moyens de butée solidaires de la tige de commande (38), et une position reculée de contact dans laquelle les deux extrémités transversales opposées (35) de la face avant de la plaque mobile de contact (34) coopèrent avec des bornes de contact (26, 28, 30, 32) fixes du contacteur (10), la plaque mobile de contact (34) étant délimitée par deux bords latéraux opposés (60) dont chacun, au moins au voisinage de la partie centrale, se prolonge par une joue latérale (64) d'orientation axiale de manière que, au moins dans sa partie centrale, le contact mobile (34) présente, en section axiale, un profil en forme de U, ladite plaque mobile de contact (34) étant de forme générale rectangulaire avec ses deux bords latéraux (60) de plus grande longueur qui se prolongent chacun par une joue latérale (64) d'orientation axiale, caractérisé en ce que la tige de commande (38) comporte au moins une rainure (74) qui s'étend axialement dans sa paroi cylindrique (44, 45) sur une longueur (L) supérieure à la course du contact mobile (34) entre ses positions avancée de repos et reculée de contact, et en ce que la partie centrale de la plaque mobile de contact (34) comporte un ergot (66) d'appui qui s'étend radialement et axialement à partir du trou (50) pour le passage de la tige de commande et qui est déformé radialement lors du montage de la plaque mobile de contact (34) sur la tige de commande (38) de manière à être reçu en coulissement dans la rainure (74, 76) pour coopérer avec une face d'extrémité axiale (86) de butée de la rainure (74, 76) pour déterminer la position avancée de repos du contact mobile (34).
- Contacteur selon la revendication 1, caractérisé en ce que chaque joue latérale (64) s'étend transversalement jusqu'aux deux extrémités transversales opposées (62) du bord latéral (60) qu'elle prolonge ;
- Contacteur selon la revendication 2, caractérisé en ce que la hauteur axiale (H) de chaque joue latérale (64) est décroissante à partir de la partie centrale de la plaque mobile de contact (34).
- Contacteur selon l'une quelconque des revendications précédentes, caractérisé en ce que chacune des deux joues latérales (64) s'étend axialement vers l'arrière.
- Contacteur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que chacune des deux joues latérales (64) s'étend axialement vers l'avant.
- Contacteur selon l'une quelconque des revendications précédentes, caractérisé en ce que la largeur latérale de la plaque mobile de contact (34) est constante.
- Contacteur selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la largeur latérale de la plaque mobile de contact (34) est réduite au voisinage de ses extrémités transversales opposées (62).
- Contacteur selon l'une quelconque des revendications précédentes, caractérisé en ce que le contact mobile est une plaque en tôle dont le contour et le trou central (50) sont réalisés par découpe et dont les joues latérales (64) sont rabattues axialement par pliage.
- Contacteur selon la revendication 1, caractérisé en ce que la partie centrale de la plaque mobile de contact (34) comporte deux ergots (66) diamétralement opposés dont chacun est reçu dans l'une de deux rainures axiales diamétralement opposées (74, 76).
- Contacteur selon l'une des revendications 1 ou 9, caractérisé en ce que la tige de commande (38) est réalisée par moulage, et en ce que les rainures (74, 76, 78) sont réalisées venues de matière par moulage.
- Démarreur de véhicule automobile, caractérisé en ce qu'il comporte un contacteur (10) selon l'une quelconque des revendications précédentes.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9713612 | 1997-10-28 | ||
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 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0913847A1 EP0913847A1 (fr) | 1999-05-06 |
EP0913847B1 true EP0913847B1 (fr) | 2005-08-24 |
Family
ID=9512824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19980120145 Expired - Lifetime EP0913847B1 (fr) | 1997-10-28 | 1998-10-27 | Contacteur de démarreur comportant un contact mobile perfectionné et démarreur de véhicule automobile muni d'un tel contacteur |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0913847B1 (fr) |
DE (1) | DE69831299T2 (fr) |
ES (1) | ES2247653T3 (fr) |
FR (1) | FR2770334B1 (fr) |
Family Cites Families (5)
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 |
FR2538037B1 (fr) * | 1982-12-21 | 1987-04-17 | Paris & Du Rhone | Axe composite de contacteur electromagnetique de demarreur electrique |
FR2721661B1 (fr) * | 1994-06-22 | 1996-07-26 | Valeo Equip Electr Moteur | Contacteur de démarreur de véhicule automobile. |
FR2741996B1 (fr) * | 1995-12-05 | 1997-12-26 | Valeo Equip Electr Moteur | Contacteur de demarreur muni d'une butee de contact mobile realisee par deformation et demarreur muni d'un tel contacteur |
FR2741995B1 (fr) * | 1995-12-05 | 1997-12-26 | Valeo Equip Electr Moteur | Contacteur de demarreur a ressort de rappel integre et demarreur de vehicule automobile muni d'un tel contacteur |
-
1997
- 1997-10-28 FR FR9713612A patent/FR2770334B1/fr not_active Expired - Lifetime
-
1998
- 1998-10-27 ES ES98120145T patent/ES2247653T3/es not_active Expired - Lifetime
- 1998-10-27 DE DE69831299T patent/DE69831299T2/de not_active Expired - Fee Related
- 1998-10-27 EP EP19980120145 patent/EP0913847B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69831299T2 (de) | 2006-05-04 |
FR2770334B1 (fr) | 2000-03-10 |
FR2770334A1 (fr) | 1999-04-30 |
DE69831299D1 (de) | 2005-09-29 |
ES2247653T3 (es) | 2006-03-01 |
EP0913847A1 (fr) | 1999-05-06 |
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Legal Events
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