EP0674749B1 - Relais d'enclenchement pour demarreurs - Google Patents

Relais d'enclenchement pour demarreurs Download PDF

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Publication number
EP0674749B1
EP0674749B1 EP94900732A EP94900732A EP0674749B1 EP 0674749 B1 EP0674749 B1 EP 0674749B1 EP 94900732 A EP94900732 A EP 94900732A EP 94900732 A EP94900732 A EP 94900732A EP 0674749 B1 EP0674749 B1 EP 0674749B1
Authority
EP
European Patent Office
Prior art keywords
relay
contact
winding
engaging
auxiliary
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
EP94900732A
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German (de)
English (en)
Other versions
EP0674749A1 (fr
Inventor
Fritz Mauch
Karlheinz Boegner
Martin Mayer
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0674749A1 publication Critical patent/EP0674749A1/fr
Application granted granted Critical
Publication of EP0674749B1 publication Critical patent/EP0674749B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil

Definitions

  • the invention is based on an engagement relay for starting devices according to the preamble of claim 1.
  • Such an engagement relay is already known per se from DE-A-37 37 430.
  • the starting device of which is provided with a single-track pinion, which is rotated via a claw-shaped lever element in a manner known per se by an engagement relay according to US Pat. No. 4,987,396 when engaged in the toothed ring of the internal combustion engine via straight teeth
  • an engagement relay according to US Pat. No. 4,987,396 when engaged in the toothed ring of the internal combustion engine via straight teeth
  • Such an auxiliary relay which is arranged separately from the starter device, for switching on the pull-in and holding winding of the engagement relay is known, for example, from DE-A-37 37 430. An additional installation space in the vehicle is required for this auxiliary relay.
  • auxiliary relay Furthermore, additional connections to this auxiliary relay are required in order to insert it into the starter circuit in such a way that the excitation winding of the auxiliary relay is first switched on by actuating the starter switch, in order to subsequently switch the windings of the engagement relay directly to the positive contacts when the relay contacts of this auxiliary relay are closed.
  • terminal 30 of the vehicle battery To connect terminal 30 of the vehicle battery so that the starter switch is not flowed through by the current of the engagement relay.
  • an engagement relay for starting devices on internal combustion engines which also contains a contactor that switches the main current for the starter motor on and off.
  • This contactor is used to delay the switch-on Starter motor and must therefore be dimensioned much stronger than the auxiliary relay for switching on the pull-in and holding winding of the engagement relay. An additional space is consequently required for such a contactor, even if it is spatially combined with the engagement relay.
  • the aim of the present solution is to keep the space requirement and the circuitry for the auxiliary relay as low as possible in order to achieve an inexpensive solution.
  • the engagement relay according to the invention with the characterizing features of claim 1 has the advantage over the known that no additional space is required in the motor vehicle for the auxiliary relay, since it is arranged within the contact space of the engagement relay and since the installation length of the engagement relay compared to the aforementioned known engagement relay can be maintained.
  • this solution makes it possible to firmly connect the auxiliary relay in the engagement relay in such a way that, as before, only the two connecting bolts of the switching contacts of the engagement relay for the main circuit of the starter and a connection for the line connection to the starter switch are present. As before, all connections are easily accessible on the front of the switch cover of the engagement relay.
  • auxiliary relay which is designed as a make contact
  • switch contact used for connecting the motor vehicle battery (terminal 30)
  • windings of the engagement relay within the contact space.
  • a spatially favorable arrangement of the auxiliary relay is possible in that it is arranged below the contact bridge of the main circuit on the magnetic core concentrically around the switching bolt actuated by the armature of the engagement relay.
  • FIG. 1 shows an engagement relay with an auxiliary relay integrated according to the invention in longitudinal section
  • FIG. 2 shows an enlarged section of the relay from FIG. 1 with the auxiliary relay in longitudinal section
  • FIG. 3 shows a cross section along the line III-III from FIG. 1
  • FIG Engagement relay from Figure 1 shows the connection circuit of the engagement relay according to Figure 1.
  • Figure 6 shows another embodiment of an engagement relay according to the invention with an integrated auxiliary relay in the off position
  • Figure 7 shows the same engagement relay in the working position
  • Figure 8 shows the top view of this engagement relay and Connection circuit.
  • An engagement relay according to the invention for the starting device of an internal combustion engine is designated by 10 in FIG.
  • a cylindrical armature 12 is arranged axially displaceably, at the lower end of which a screw 13 is screwed with an insulating bush 14, via which the armature in a manner known per se via a claw-shaped lever linkage is a pinion Engages the starting device in a ring gear of the internal combustion engine or disengages it from this ring gear.
  • the armature 12 is concentrically surrounded by its upper section by a pull-in winding 15 and a holding winding 16, which sit on a coil former 17 in the housing 11.
  • a magnetic core 18 is inserted into the relay housing 11, which is flanged to the housing 11 via a spring plate together with a switch cover 19 of the engagement relay 10 from the upper housing edge 11a.
  • a switching pin 20 is guided with a spacer bush 21 arranged thereon, the head 20a of the switching pin 20 being immersed in a central blind hole 22 of the armature 12.
  • the head 20a of the switching bolt is acted upon on the one hand by a compression spring 23 inserted in the blind hole 22 on its underside and on the other hand is held in the rest position shown by a further compression spring 24 inserted between the armature 12 and the head of the switching bolt 20.
  • the upper end of the switching pin 20 protrudes above the armature 12 into a contact space 25 of the switch cover 19.
  • the upper section of the switching pin 20 carries an insulating bush 26 with a contact bridge 27 placed thereon at the front.
  • the contact bridge 27 lies concentrically on an annular shoulder 28 in the lower section expanded insulating material bushing 26.
  • a further helical compression spring is used as the contact pressure spring 29, which is supported on the one hand against the spacer bushing 21 and on the other hand against the annular shoulder 28 of the insulating material bushing 26.
  • the insulating material bushing 26 and the contact bridge 27 are secured to the switching pin 20 in an electrically insulated manner.
  • the contact bridge 27 interacts with two switching contacts of the engagement relay, which are used as contact screws 31, 32 in the end face of the switch cover 19 at a distance from one another in a known manner.
  • An auxiliary relay 33 is arranged below the contact bridge 27 on the magnetic core 18, the relay contacts of which switch on the windings 15 and 16 of the engagement relay 10.
  • the auxiliary relay 33 is arranged concentrically around the switching pin 20 to be actuated by the armature 12.
  • FIGS 2 and 3 show an enlarged view of the arrangement and design of the auxiliary relay 33 in the contact space 25 of the pull-in relay 10.
  • the auxiliary relay 33 with its relay winding 34 is pushed onto a magnetic core sleeve 35, which is concentric around the extended shoulder of the insulating material bushing 26 at the end of the Switch pin 20 is attached.
  • the magnetic core sleeve 35 is fastened in a corresponding hole in the yoke of a U-shaped magnetic bracket 37, which includes the relay winding 34.
  • a hinged armature 39 is mounted, on the projecting end of which a return spring 40 attached to the magnetic bracket 37 engages.
  • the free end of the hinged armature 39 carries a contact spring 41, at the free end of which two contacts 42 arranged side by side are riveted with a busbar 43 to form a contact bridge 44.
  • This contact bridge 44 interacts with two fixed relay contacts 45, 46 arranged at a distance below it.
  • an insulating plate 47 is screwed tight by means of two screws 48, on which the magnetic bracket 37 with the magnetic core sleeve 35 and the relay winding 34 with its winding carrier 49 are fastened, in which several are formed on the underside of the winding carrier 49 Rivet pins 50 are riveted into corresponding openings in the magnetic bracket 37 and the insulating plate 47.
  • the hinged armature 39 is held in the rest position shown with a wire clip 51 attached to the magnetic bracket 37.
  • the insulating plate 47 also carries the two fixed relay contacts 45 and 46 in the region of two conductor tracks 52 and 53 laminated on the insulating plate 47. If necessary, the conductor tracks 52 and 53 can also be replaced by busbars, which are then expediently connected to the associated relay contact 45 and 46 formed integrally on the insulating plate 47 are attached.
  • One end 34a of the relay winding 34 of the auxiliary relay 33 is electrically connected to the magnetic core 18 of the engagement relay 10, which is connected to the ground potential, by soldering or welding this end to a connecting lug 54 which is screwed into the contact space 25 with the screw 48 for fastening the insulating plate 47 to the magnetic core 18 is.
  • the other end 34b of the relay winding 34 is soldered to a connection area 55 of the insulating plate 47, to which a connection conductor 56 leading to the switch cover 19 is soldered.
  • connection conductor 56 for the connection of the relay winding 34 of the auxiliary relay 33 is soldered to the outside of the switch cover 19 with a connecting tab 58 which is to be connected to a connecting screw 59 as a terminal 50 for connecting the control line coming from the starter switch of the internal combustion engine.
  • the relay contacts 45 and 46 operating as make contacts are each connected via one of the conductor tracks 52 and 53 of the insulating plate 47.
  • the one fixed relay contact 45 is contacted via the conductor track 52 with a connecting conductor 60 and this with a connecting tab 61 which is screwed onto the contact bolt 31 in the main starting circuit, which is connected as a terminal 30 to the positive pole of the motor vehicle battery.
  • the other relay contact 46 is connected via the conductor 53 within the contact space 25 to one end 15a of the pull-in winding 15 and one end 16a of the holding winding 16, which are guided through a corresponding recess 62 of the magnetic core 18 to the conductor 53 and soldered there.
  • the other end 15b of the pull-in winding 15 is also soldered through the contact space 25 and one of the rivets 57 to a connection tab 62 which is connected to the second contact pin 32 is screwed on the outside of the switch cover 19, to which the connection leading to the starting motor (terminal 45) is screwed.
  • the other terminal 16b of the holding winding 16 is welded directly to the magnetic core 18 which is at ground potential.
  • FIG. 5 shows the electrical circuit of the entire starter device 63 with the starter motor 64 and the engagement relay 10. From this it can be seen that the auxiliary relay 33 integrated in the engagement relay 10 is energized when a voltage is applied to terminal 50 and the relay contacts 45, 46 via the contact bridge 44 getting closed. The battery voltage thus comes from terminal 30 via the auxiliary relay 33 to the pull-in winding 15 and holding winding 16, the holding winding 16 being connected directly to ground and the pull-in winding 15 being connected to ground via the starter motor 64. The engagement relay 10 is now switched on by the magnetic energy building up in the working air gap 65 between the magnetic core 18 and the armature 12 pulls the armature 12 against the restoring force of the spring 24 and thus initially advances the starter pinion via a lever linkage.
  • the switching pin 20 in the last stroke section is pushed up by the screw 23 against the force of the spring 24, so that the contact bridge 27 with the force of the contact pressure spring 29 contacts the switching contacts of the contact pins 31 and 32 and thus the main circuit of the starting device 63 closes.
  • the now spur pinion is now driven by the starter motor 64 and the internal combustion engine is started with it.
  • the pull-in winding 15 connected in parallel with the contact bolts 31 and 32 is also bridged and thus switched off, so that the engagement relay 10 remains actuated by the holding winding 16.
  • the auxiliary relay 33 drops out again and now also interrupts the circuit for the holding winding 16.
  • the armature 12 now moves back to the starting position and the main circuit of the starter device is interrupted.
  • FIGS. 6 to 9 show a second exemplary embodiment of the invention, identical parts from the first exemplary embodiment being provided with the same reference numbers.
  • the auxiliary relay 33 in the contact space 25 of the engagement relay 10 with the winding carrier 49 of the relay winding 34 is largely let into the magnetic core 18 in order to keep the overall length of the engagement relay 70 as short as possible.
  • a soft magnetic leaf spring 71 is provided instead of a hinged armature, one end of which is fastened to the armature 12 in an electrically insulated manner with a screw 72 and the other, free end of which carries a first relay contact 73 which is used as a second relay contact 74 insulated in the armature 12 Closer cooperates.
  • the middle section of the leaf spring 71 lies above the relay winding 34, so that the leaf spring 71 closes the relay contacts 73, 74 when the auxiliary relay is energized.
  • the fixed relay contact 74 of the auxiliary relay 33 is connected via a conductor 75 to the contact pin 31 as a terminal 30, and that the other relay contact 73 via the leaf spring 71 on the screw 72 with a End of the feed winding 15 is contacted.
  • the relay winding 34 is contacted with the end not at ground together with one end of the holding winding 16 via a further conductor 76 to a connecting lug 58 with a connecting screw 59 on the switch cover 19, which forms the terminal 50.
  • the other ends of the pull-in winding 15 and holding winding 16 are connected to ground here by being welded to the armature 18 carrying ground potential.
  • the engaging relay 70 it is provided that this forcibly opens the relay contacts 73 and 74 of the auxiliary relay 33 in the switched-on state, in order to thereby switch off the pull-in winding 15.
  • a pin 77 which is displaceable in the axial direction of the armature 12 is mounted in the magnetic core 18 and extends into the working air gap 65 protrudes between the magnetic core 18 and armature 12 and rests with its head 77a in the contact space 25 when the engagement relay is switched off according to FIG. 6 on the magnetic core 18.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Electromagnets (AREA)

Abstract

On propose un relais d'enclenchement (10) pour des démarreurs de moteurs à combustion interne, dont l'enroulement (15) est mis sous tension par l'intermédiaire d'un relais auxiliaire (33). Pour réaliser un relais auxiliaire caractérisé par une disposition et une configuration compactes et d'un prix de revient modéré, il est proposé que le relais auxiliaire (33) soit disposé dans l'espace de contact (35) du relais d'enclenchement (10). Une extrémité (34a) de son enroulement (34) est reliée électriquement au noyau magnétique (18), mis à la masse, du relais d'enclenchement (10) et l'autre extrémité (34b) est reliée électriquement à une pièce de raccordement (58, 59) fixée dans le couvercle (19) du relais d'enclenchement (10). Sur cette pièce de raccordement (58, 59) se présentant comme une borne (50) est raccordé un contacteur de démarrage pour le moteur à combustion interne afin de mettre sous tension le relais d'enclenchement (10) par l'intermédiaire du relais auxiliaire (33) intégré à ce premier relais.

Claims (11)

  1. Relais d'enclenchement (10) pour dispositifs de démarrage de moteurs à combustion interne , dans le cas duquel une armature (12), d'une part introduit, en branchant un enroulement d'actionnement et un enroulement de maintien (15, 16) du relais d'enclenchement au moyen d'une timonerie, un pignon du dispositif de démarrage dans une couronne dentée du moteur à combustion interne, et d'autre part branche, par l'intermédiaire d'un pont de contact (27) coopérant avec des contacts (31, 32) du relais d'enclenchement, le circuit principal d'un moteur de démarreur du dispositif de démarrage, le pont de contact étant disposé à l'extrémité d'une tige de mise en contact (20) qui doit être actionnée par l'armature, et au moins l'enroulement d'actionnement devant être branché par les contacts (42) d'un relais auxiliaire (33), relais d'enclenchement caractérisé en ce que le relais auxiliaire (33) est disposé dans une chambre de contacts (25) qui est fermée vers l'extérieur par un couvercle de contacteur (19) dans lequel pénètre la tige de mise en contact (20), et qui est fermé par un noyau magnétique (18) en direction de l'enroulement d'actionnement et de l'enroulement de maintien (15, 16), en ce que la tige de mise en contact (20) passe à travers le noyau magnétique (18) ainsi qu'à travers le relais auxiliaire (33), en ce qu'une extrémité (34a) de l'enroulement (34) du relais auxiliaire est reliée, dans la chambre de contacts (25), au noyau magnétique (18) du relais d'enclenchement qui conduit le potentiel de la masse, et en ce que l'autre extrémité (34b) de l'enroulement de relais (34) est mise en contact sur une pièce de raccordement (57, 59) fixée dans le couvercle de contacteur (19).
  2. Relais d'enclenchement selon la revendication 1, caractérisé en ce que le relais auxiliaire (33) est relié par l'un de ses contacts (43, 44, 45, 46) constitués sous la forme d'un contacteur de fermeture, d'une part au contact (31) utilisé pour le raccordement (borne 30) à une batterie d'accumulateurs de véhicule à moteur, et d'autre part, dans la chambre de contacts (25), à l'enroulement d'actionnement (15).
  3. Relais d'enclenchement selon la revendication 1 ou 2, caractérisé en ce que le relais auxiliaire (33) est disposé sur le noyau magnétique (18) du relais d'enclenchement (10).
  4. Relais d'enclenchement selon la revendication 3, caractérisé en ce que le relais auxiliaire (33) est disposé en dessous du pont de contact (27) sur le noyau magnétique (18), de façon concentrique autour de la tige de mise en contact (20) devant être actionnée par l'armature (12) du relais d'enclenchement (10).
  5. Relais d'enclenchement selon la revendication 4, caractérisé en ce que l'enroulement (34) du relais auxiliaire (33) est enfilé par son support d'enroulement (49) sur un manchon de noyau magnétique (35) disposé de façon concentrique autour d'un manchon en matière isolante (26) qui est fixé en recevant le pont de contact (27) à l'extrémité de la tige de mise en contact (20).
  6. Relais d'enclenchement selon la revendication 5, caractérisé en ce que le manchon de noyau magnétique (35) est fixé dans un trou correspondant de l'arche (36) d'un étrier magnétique (37) en forme d'U recevant l'enroulement de relais (34), étrier sur l'extrémité d'une des branches duquel est montée une armature rabattable (39) avec un ressort de rappel (40), et dont l'extrémité libre porte un ressort de contact (41), avec un pont de contact (44) du relais auxiliaire (33) qui coopère avec deux contacts de relais fixes (45, 46).
  7. Relais d'enclenchement selon la revendication 6, caractérisé en ce que le noyau magnétique (18) du relais d'enclenchement (10) porte, en direction de la chambre de contacts (25), une plaque isolante (47) sur laquelle sont fixés l'étrier magnétique (37) avec le manchon de noyau magnétique (35), et le support d'enroulement (41) avec l'enroulement de relais (34), ainsi que les contacts de relais fixes (45, 46).
  8. Relais d'enclenchement selon la revendication 7, caractérisé en ce que la plaque isolante (47) est pourvue d'au moins une piste conductrice (52, 53) qui est reliée, d'une part à un contact (45, 46) du relais auxiliaire (33), et d'autre part à au moins une extrémité (15a) de l'enroulement d'actionnement (15).
  9. Relais d'actionnement selon la revendication 8, caractérisé en ce que l'autre contact (45) du relais auxiliaire (33) est relié au contact (31) servant de borne de raccordement (30) du circuit principal, en faisant passer, à travers le couvercle de contacteur (19), un conducteur (60) partant des pistes conductrices (52) de la plaque isolante (47), mises en contact avec le contact de relais (45), et, à l'extérieur est mis en contact avec une patte de raccordement (61) vissée de l'extérieur sur le contact (31) du relais d'enclenchement (10).
  10. Relais d'enclenchement selon l'une des revendications précédentes, caractérisé en ce que l'enroulement d'actionnement et l'enroulement de maintien (15, 16) sont raccordés en commun par l'une de leurs extrémités (15a, 16a) dans la chambre de contact (25), à un contact (46) du relais auxiliaire (33), en ce que l'autre extrémité (15b) de l'enroulement d'enclenchement (15) est reliée au contact (32) du relais d'enclenchement (10) qui conduit au moteur de démarrage (64), et l'autre extrémité (16b) de l'enroulement de maintien (16) est reliée au noyau magnétique (18) du relais d'enclenchement (10) qui conduit au potentiel de la masse.
  11. Relais d'enclenchement selon l'une des revendications précédentes, caractérisé en ce que dans le noyau magnétique (18) est montée une tige (77) qui peut dans le sens de l'axe de l'armature (12), tige (77) qui pénètre dans l'entrefer (65) compris entre le noyau magnétique (18) et l'armature (12) et qui, quand l'armature (12) est attirée, ouvre les contacts (45, 46) du relais auxiliaire (33).
EP94900732A 1992-12-18 1993-11-27 Relais d'enclenchement pour demarreurs Expired - Lifetime EP0674749B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4242930 1992-12-18
DE4242930A DE4242930C2 (de) 1992-12-18 1992-12-18 Einrückrelais für Andrehvorrichtungen
PCT/DE1993/001132 WO1994015093A1 (fr) 1992-12-18 1993-11-27 Relais d'enclenchement pour demarreurs

Publications (2)

Publication Number Publication Date
EP0674749A1 EP0674749A1 (fr) 1995-10-04
EP0674749B1 true EP0674749B1 (fr) 1996-07-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP94900732A Expired - Lifetime EP0674749B1 (fr) 1992-12-18 1993-11-27 Relais d'enclenchement pour demarreurs

Country Status (6)

Country Link
US (1) US5677656A (fr)
EP (1) EP0674749B1 (fr)
JP (1) JPH08504913A (fr)
KR (1) KR950704610A (fr)
DE (2) DE4242930C2 (fr)
WO (1) WO1994015093A1 (fr)

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EP2080898B1 (fr) 2008-01-18 2020-03-11 Denso Corporation Démarreur à structure compacte
JP5212065B2 (ja) * 2008-01-18 2013-06-19 株式会社デンソー スタータ
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Publication number Publication date
DE4242930C2 (de) 1998-07-09
EP0674749A1 (fr) 1995-10-04
DE4242930A1 (de) 1994-06-23
WO1994015093A1 (fr) 1994-07-07
US5677656A (en) 1997-10-14
KR950704610A (ko) 1995-11-20
DE59303213D1 (de) 1996-08-14
JPH08504913A (ja) 1996-05-28

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