EP0674749A1 - Actuating relay for starting devices. - Google Patents

Actuating relay for starting devices.

Info

Publication number
EP0674749A1
EP0674749A1 EP94900732A EP94900732A EP0674749A1 EP 0674749 A1 EP0674749 A1 EP 0674749A1 EP 94900732 A EP94900732 A EP 94900732A EP 94900732 A EP94900732 A EP 94900732A EP 0674749 A1 EP0674749 A1 EP 0674749A1
Authority
EP
European Patent Office
Prior art keywords
relay
contact
winding
engagement
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.)
Granted
Application number
EP94900732A
Other languages
German (de)
French (fr)
Other versions
EP0674749B1 (en
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/en
Application granted granted Critical
Publication of EP0674749B1 publication Critical patent/EP0674749B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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 US Pat. No. 4,987,396.
  • auxiliary relay Furthermore, additional connections to this auxiliary relay are required in order to insert it in the starter circuit in such a way that the excitation winding of the auxiliary relay is switched on first by actuating the starter switch, so that the windings of the engagement relay are immediately connected when the relay contacts of this auxiliary relay are closed to the plus terminal 30 the vehicle battery so that the starter switch is not flowed through by the current of 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 a cost-effective 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 could 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 device 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.
  • 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 4 shows a top view of the engagement relay from FIG. 1
  • FIG. 5 shows the connection circuit of the engagement relay according to FIG. 1.
  • FIG. 6 shows a further embodiment of an engagement relay according to the invention with an integrated auxiliary relay in the off position
  • FIG. 7 shows the same engagement relay in the working position
  • FIG. 8 shows the top view thereof Engagement relay
  • FIG. 9 the 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 Torque device engages in a gear rim of the internal combustion engine or tracks it out of this gear rim.
  • the upper section of the armature 12 is surrounded concentrically by a pull-in winding 15 and a holding winding 16 which are seated 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 by means of 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 pin 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 pin 20.
  • the upper end of the switching pin 20 projects 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 on an annular shoulder 28 in the lower section concentrically expanded insulating 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 bolt 20 in an electrically insulated manner by a nut 30 screwed onto the upper end of the switching bolt 20.
  • the contact bridge 27 interacts with two switching contacts of the engagement relay, which are inserted as contact screws 31, 32 into 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.
  • Figures 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. Thereafter, 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 End of the switching 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 tightly 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 on the underside of the winding carrier 49 integrally formed rivets 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 suspended on 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 onto the insulating plate 47.
  • the conductor tracks 52 and 53 can also be replaced by conductor rails, 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 fastened with the screw 48 for fastening the insulating plate 47 to the magnetic core 18 is screwed into the contact space 25.
  • 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.
  • 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 lug 61 which is screwed onto the contact pin 31 in the main 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 starting device 63 with the starting 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 can be closed via the contact bridge 44. 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 pulling in the armature 12 against the restoring force of the spring 24 and thus initially advancing 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 sets and thus closes the main circuit of the starter 63.
  • 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.
  • 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 length of the engagement relay 70 as short as possible.
  • a soft magnetic leaf spring 71 is provided, 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 inserted with a second, insulated in the armature 12 Relay contact 74 cooperates as a closer.
  • 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 engaging relay 70 it is provided that it 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.

Abstract

The proposal is for an actuating relay (10) for starting devices of internal combustion engines, the pull-in winding (15) of which is switched on via an auxiliary relay (33). To provide a space-saving economical arrangement and construction of the auxiliary relay, said auxiliary relay (33) is arranged in the contact chamber (35) of the actuating relay (10). One end (34a) of its winding (34) is electrically connected to the magnetic core (18) of the actuating relay (10) conducting earth potentiel and the other end (34b) to a connector (58, 59) secured in the switch cover (19) of the actuating relay (10). To this connector (58, 59), taking the form of a terminal (50), is connected a starting switch for the internal combustion engine in order to switch the actuating relay (10) on via the auxiliary relay (33) built into it.

Description

Einrückrelais für Andrehvorrichtun enEngagement relay for starting devices
Stand der TechnikState of the art
Die Erfindung geht aus von einem Einrückrelais für Andrehvorrich¬ tungen nach dem Oberbegriff des Patentanspruchs 1. Ein derartiges Einrückrelais ist bereits aus der US-PS 4 987 396 an sich bekannt.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 US Pat. No. 4,987,396.
Bei Nutzf hrzeugen, deren Andrehvorrichtung mit einem Einspurritzel versehen ist, welches über ein klauenförmiges Hebelorgan in an sich bekannter Weise durch das Einrückrelais beim Einspuren in den Zahn¬ kranz der Brennkraftmaschine über eine Geradeverzahnung verdreht wird, ist der Strombedarf für die Halte- und Einzugswicklung des Einrückrelais so groß, daß zum Schalten dieses Stromes ein zusätz¬ liches Relais erforderlich ist. Ein solches, separat von der Anla߬ vorrichtung angeordnetes Hilfsrelais zum Einschalten der Einzugs- und Haltewicklung des Einrückrelais ist beispielsweise aus der DE 37 37 430 C bekannt. Für dieses Hilfsrelais wird ein zusätzlicher Einbauraum im Fahrzeug benötigt. Ferner sind zusätzliche Verbindun¬ gen zu diesem Hilfsrelais erforderlich, um es in der Anlaßschaltung in der Weise einzufügen, daß durch Betätigung des Anlaßschalters zu¬ nächst die Erregerwicklung des Hilfsrelais eingeschaltet wird, um nachfolgend mit dem Schließen der Relaiskontakte dieses Hilfsrelais die Wicklungen des Einrückrelais unmittelbar an die Plus-Klemme 30 der Fahrzeugbatterie anzuschließen, sodaß der Anlaßschalter nicht vom Strom des Einrückrelais durchflössen wird.In the case of commercial vehicles whose starter device is provided with a single-track pinion, which is rotated via a claw-shaped lever element in a manner known per se by the engagement relay during the engagement in the toothed ring of the internal combustion engine via a straight toothing, the current requirement for the holding and pull-in winding of the Engagement relay so large that an additional relay is required to switch this current. 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 37 37 430 C. An additional installation space in the vehicle is required for this auxiliary relay. Furthermore, additional connections to this auxiliary relay are required in order to insert it in the starter circuit in such a way that the excitation winding of the auxiliary relay is switched on first by actuating the starter switch, so that the windings of the engagement relay are immediately connected when the relay contacts of this auxiliary relay are closed to the plus terminal 30 the vehicle battery so that the starter switch is not flowed through by the current of the engagement relay.
Mit der vorliegenden Lösung wird angestrebt, den Platzbedarf, und den Schaltungsaufwand für das Hilfsrelais zur Erzielung einer ko¬ stengünstigen Lösung möglichst gering zu halten.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 a cost-effective solution.
Vorteile der ErfindungAdvantages of the invention
Das erfindungsgemäße Einrückrelais mit den kennzeichnenden Merkmalen des Patentanspruchs 1 hat gegenüber dem bekannten den Vorteil, daß für das Hilfsrelais kein zusätzlicher Platz im Kraftfahrzeug mehr benötigt wird, da es innerhalb des Kontaktraumes des Einrückrelais angeordnet ist und da die Einbaulänge des Einrückrelais gegenüber dem vorgenannten bekannten Einrückrelais beibehalten werden konnte. Außerdem ist es durch diese Lösung möglich, das Hilfsrelais im Ein¬ rückrelais derart fest zu verschalten, daß nach außen hin wie bisher nur die zwei Anschlußbolzen der Schaltkontakte des Einrückrelais für den Hauptstromkreis der Andrehvorrichtung sowie ein Anschluß für die Leitungsverbindung zum Anlaßschalter vorhanden ist. Alle Anschlüsse befinden sich wie bisher gut zugänglich an der Stirnseite des Schal- terdeckels des Einrückrelais.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 could be maintained. In addition, 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 device 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.
Durch die in den Unteransprüchen aufgeführten Maßnahmen ergeben sich vorteilhafte Weiterbildungen und Verbesserungen der im Patentan¬ spruch 1 angegebenen Merkmale. So ist besonders vorteilhaft, den als Schließer ausgebildeten Relaiskontakt des Hilfsrelais zum einen mit dem zum Anschluß der Kraftfahrzeugbatterie (Klemme 30) verwendeten Schaltkontakt und zum anderen mit den Wicklungen des Einrückrelais innerhalb des Kontaktraumes zu verbinden. Eine räumlich günstige Anordnung des Hilfsrelais ist dadurch möglich, daß es unterhalb der Kontaktbrücke des Hauptstromkreises auf dem Magnetkern konzentrisch um den vom Anker des Einrückrelais betätigten Schaltbolzen angeord¬ net ist. ZeichnungThe measures listed in the subclaims result in advantageous developments and improvements of the features specified in patent claim 1. It is particularly advantageous to connect the relay contact of the auxiliary relay, which is designed as a make contact, on the one hand to the switch contact used for connecting the motor vehicle battery (terminal 30) and on the other hand to the windings of the engagement relay within the contact space. A spatially advantageous 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. drawing
Zwei Ausführungsbeispiele der Erfindung sind in der Zeichnung darge¬ stellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 ein Einrückrelais mit einem erfindungsgemäß inte¬ grierten Hilfsrelais im Längsschnitt, Figur 2 einen vergrößert dar¬ gestellten Abschnitt des Relais aus Figur 1 mit dem Hilfsrelais im Längsschnitt, Figur 3 einen Querschnitt nach der Linie III-III aus Figur 1, Figur 4 eine Draufsicht des Einrückrelais aus Figur 1, Figur 5 die Anschlußschaltung -des Einrückrelais nach Figur 1. Figur 6 zeigt ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Einrückrelais mit integriertem Hilfsrelais in Ausschaltstellung, Figur 7 zeigt das gleiche Einrückrelais in Arbeitsstellung, Figur 8 zeigt die Draufsicht dieses Einrückrelais und Figur 9 die Anschlu߬ schaltung.Two exemplary embodiments of the invention are shown in the drawing and explained in more detail in the following description. 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 4 shows a top view of the engagement relay from FIG. 1, FIG. 5 shows the connection circuit of the engagement relay according to FIG. 1. FIG. 6 shows a further embodiment of an engagement relay according to the invention with an integrated auxiliary relay in the off position, FIG. 7 shows the same engagement relay in the working position, FIG. 8 shows the top view thereof Engagement relay and FIG. 9 the connection circuit.
Beschreibung der AusführungsbeispieleDescription of the embodiments
In Figur 1 ist ein erfindungsgemäßes Einrückrelais für die Andreh¬ vorrichtung einer Brennkraftmaschine mit 10 bezeichnet. In einem magnetisch leitenden, topfförmigen Gehäuse 11 des Einrückrelais 10 ist ein zylindrischer Anker 12 axial verschiebbar angeordnet, an dessen unterem Ende eine Schraube 13 mit einer Isolierstoffbuchse 14 eingeschraubt ist, über die der Anker in an sich bekannter Weise über ein klauenförmiges Hebelgestänge ein Ritzel der Andrehvorrich¬ tung in einen Zahnkranz der Brennkraftmaschine einspurt bzw. aus diesem Zahnkranz ausspurt. Der Anker 12 ist mit seinem oberen Ab¬ schnitt konzentrisch von einer Einzugswicklung 15 und einer Halte¬ wicklung 16 umgeben, die im Gehäuse 11 auf einem Spulenkörper 17 sitzen. Oberhalb des Spulenkörpers 17 ist ein Magnetkern 18 in das Relaisgehäuse 11 eingesetzt, der über eine Federplatte zusammen mit einem Schalterdeckel 19 des Einrückrelais 10 vom oberen Gehäuserand 11a am Gehäuse 11 festgebördelt ist. In einer zentralen Bohrung des Magnetkerns 18 wird ein Schaltbolzen 20 mit einer darauf ange¬ ordneten Distanzbuchse 21 geführt, wobei der Kopf 20a des Schalt¬ bolzens 20 in ein zentrisches Sackloch 22 des Ankers 12 eintaucht. Der Kopf 20a des Schaltbolzens wird dabei einerseits durch eine im Sackloch 22 eingesetzte Druckfeder 23 an seiner Unterseite beauf¬ schlagt und andererseits durch eine weitere, zwischen dem Anker 12 und dem Kopf des Schaltbolzens 20 eingesetzte Schraubendruckfeder 24 in der dargestellten Ruhelage gehalten. Das obere Ende des Schalt¬ bolzens 20 ragt oberhalb des Ankers 12 in einen Kontaktraum 25 des Schalterdeckels 19. Der obere Abschnitt des Schaltbolzens 20 trägt eine Isolierstoffbuchse 26 mit einer darauf vorn aufgesetzten Kon¬ taktbrücke 27. Die Kontaktbrücke 27 liegt auf einer Ringschulter 28 der im unteren Abschnitt konzentrisch erweiterten Isolierstoffbuchse 26 auf. In dem dadurch zwischen Schaltbolzen 20 und Isolierstoff- buchse 26 gebildeten Ringspalt ist eine weitere Schraubendruckfeder als Kontaktdruckfeder 29 eingesetzt, die sich einerseits gegen die Distanzbuchse 21 und andererseits gegen die Ringschulter 28 der Iso¬ lierstoffbuchse 26 abstützt. Durch eine am oberen Ende des Schalt¬ bolzens 20 aufgeschraubte Mutter 30 sind Isolierstoffbuchse 26 und Kontaktbrücke 27 elektrisch isoliert am Schaltbolzen 20 gesichert. Die Kontaktbrücke 27 wirkt mit zwei Schaltkontakten des Einrückre¬ lais zusammen, die als Kontaktschrauben 31, 32 in die Stirnseite des Schalterdeckels 19 mit Abstand voneinander in bekannter Weise ein¬ gesetzt sind.An engagement relay according to the invention for the starting device of an internal combustion engine is designated by 10 in FIG. In a magnetically conductive, pot-shaped housing 11 of the engagement relay 10, 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 Torque device engages in a gear rim of the internal combustion engine or tracks it out of this gear rim. The upper section of the armature 12 is surrounded concentrically by a pull-in winding 15 and a holding winding 16 which are seated on a coil former 17 in the housing 11. Above the coil body 17, a magnetic core 18 is inserted into the relay housing 11, which is flanged to the housing 11 by means of a spring plate together with a switch cover 19 of the engagement relay 10 from the upper housing edge 11a. In a central hole of the magnetic core 18, 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 pin 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 pin 20. The upper end of the switching pin 20 projects 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 on an annular shoulder 28 in the lower section concentrically expanded insulating bushing 26. In the annular gap thus formed between the switching pin 20 and the 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 bolt 20 in an electrically insulated manner by a nut 30 screwed onto the upper end of the switching bolt 20. The contact bridge 27 interacts with two switching contacts of the engagement relay, which are inserted as contact screws 31, 32 into the end face of the switch cover 19 at a distance from one another in a known manner.
Unterhalb der Kontaktbrücke 27 ist auf dem Magnetkern 18 ein Hilfs¬ relais 33 angeordnet, dessen Relaiskontakte die Wicklungen 15 und 16 des Einrückrelais 10 einschaltet. Das Hilfsrelais 33 ist konzen¬ trisch um den vom Anker 12 zu betätigenden Schaltbolzen 20 angeord¬ net. Die Figuren 2 und 3 zeigen in vergrößerter Darstellung die Anordnung und Ausbildung des Hilfrelais 33 im Kontaktraum 25 des Einzugsrelais 10. Danach ist das Hilfsrelais 33 mit seiner Relaiswicklung 34 auf eine Magnetkernhülse 35 aufgeschoben, die konzentrisch um den er¬ weiterten Absatz der Isolierstoffbuchse 26 am Ende des Schaltbolzens 20 befestigt ist. Die Magnetkernhülse 35 ist dabei in einem ent¬ sprechenden Loch im Joch eines U-förmigen Magnetbügels 37 befestigt, der die Relaiswicklung 34 umfaßt. Auf dem einen Schenkelende 38 des Magnetbügels 37 ist ein Klappanker 39 gelagert, an dessen über¬ stehenden Ende eine am Magnetbügel 37 eingehängte Rückstellfeder 40 angreift. Das freie Ende des Klappankers 39 trägt eine Kontaktfeder 41, an deren freien Ende zwei nebeneinander angeordnete Kontakte 42 mit einer Stromschiene 43 zur Bildung einer Kontaktbrücke 44 fest¬ genietet sind. Diese Kontaktbrücke 44 wirkt mit zwei darunter mit Abstand angeordneten feststehenden Relaiskontakten 45, 46 zusammen. Auf der den Kontaktraum 25 begrenzenden Stirnseite des Magnetkerns 18 ist eine Isolierplatte 47 mittels zweier Schrauben 48 festge¬ schraubt, auf welcher der Magnetbügel 37 mit der Magnetkernhülse 35 und die Relaiswicklung 34 mit ihrem Wicklungsträger 49 befestigt ist, in dem mehrere an der Unterseite des Wicklungsträgers 49 ange¬ formte Nietzapfen 50 in entsprechende Durchbrüche des Magnetbügels 37 und der Isolierplatte 47 festgenietet sind. Mit einer am Magnet¬ bügel 37 eingehängten Drahtspange 51 wird der Klappanker 39 in sei¬ ner dargestellten Ruhelage gehalten. Die Isolierplatte 47 trägt ferner die beiden feststehenden Relaiskontakte 45 und 46 im Bereich zweier auf der Isolierplatte 47 aufkaschierter Leiterbahnen 52 und 53. Dabei können im Bedarfsfall die Leiterbahnen 52 und 53 auch durch Stromschienen ersetzt werden, welche dann zweckmäßigerweise mit dem zugehörigen Relaiskontakt 45 und 46 einstückig ausgebildet auf der Isolierplatte 47 befestigt werden. Ein Ende 34a der Relaiswicklung 34 des Hilfsrelais 33 ist mit dem massepotientialführenden Magnetkern 18 des Einrückrelais 10 elek¬ trisch verbunden, indem dieses Ende an eine Anschlußlasche 54 ange¬ lötet oder geschweißt ist, die mit der Schraube 48 zur Befestigung der Isolierplatte 47 am Magnetkern 18 im Kontaktraum 25 festge¬ schraubt ist. Das andere Ende 34b der Relaiswicklung 34 ist auf einem Anschlußbereich 55 der Isolierplatte 47 angelötet, auf den ein zum Schalterdeckel 19 führender Anschlußleiter 56 festgelötet wird. In der Draufsicht des Schalterdeckels 19 gemäß Figur 4 ist erkenn¬ bar, daß oberhalb und unterhalb der beiden Kontaktbolzen 31 und 32 jeweils Hohlniete 57 in entsprechende Bohrungen des Schalterdeckels 19 eingenietet sind, durch welche Anschlußleiter aus dem Kontaktraum 25 nach außen geführt und dort mit Anschlußteilen verlötet werden. So ist der Anschlußleiter 56 für den Anschluß der Relaiswicklung 34 des Hilfsrelais 33 außen am Schalterdeckel 19 mit einer Anschlu߬ lasche 58 verlötet, die mit einer Anschlußschraube 59 als Klemme 50 zum Anschluß der vom Anlaßschalter der Brennkraftmaschine kommenden Steuerleitung zu verbinden ist.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. Figures 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. Thereafter, 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 End of the switching 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. On one leg end 38 of the magnetic bracket 37, 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. On the end face of the magnetic core 18 which delimits the contact space 25, an insulating plate 47 is screwed tightly 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 on the underside of the winding carrier 49 integrally formed rivets 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 suspended on 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 onto the insulating plate 47. If necessary, the conductor tracks 52 and 53 can also be replaced by conductor rails, 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 fastened with the screw 48 for fastening the insulating plate 47 to the magnetic core 18 is screwed into the contact space 25. 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. In the top view of the switch cover 19 according to FIG. 4, it can be seen that above and below the two contact bolts 31 and 32 in each case hollow rivets 57 are riveted into corresponding bores in the switch cover 19, through which connecting conductors lead from the contact space 25 to the outside and there with connecting parts to be soldered. Thus, the connecting conductor 56 for connecting the relay winding 34 of the auxiliary relay 33 is soldered to the outside of the switch cover 19 with a connecting lug 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.
Die als Schließer arbeitenden Relaiskontakte 45 und 46 werden je¬ weils über eine der Leiterbahnen 52 und 53 der Isolierplatte 47 an¬ geschlossen. Der eine feststehende Relaiskontakt 45 wird dabei über die Leiterbahn 52 mit einem Anschlußleiter 60 und dieser mit einer Anschlußlasche 61 kontaktiert, die am Kontaktbolzen 31 im Hauptan¬ laßstromkreis festgeschraubt ist, der als Klemme 30 mit dem Pluspol der Kraftfahrzeugbatterie verbunden wird. Der andere Relaiskontakt 46 wird über die Leiterbahn 53 innerhalb des Kontaktraumes 25 mit einem Ende 15a der Einzugswicklung 15 und einem Ende 16a der Halte¬ wicklung 16 verbunden, die durch eine entsprechende Ausnehmung 62 des Magnetkerns 18 zur Leiterbahn 53 geführt und dort angelötet werden. Das andere Ende 15b der Einzugswicklung 15 wird ebenfalls durch den Kontaktraum 25 und einem der Niete 57 hindurch an eine Anschlußlasche 62 angelötet, die mit dem zweiten Kontaktbolzen 32 außen am Schalterdeckel 19 verschraubt ist, an dem die zum Andreh¬ motor führende Verbindung (Klemme 45) angeschraubt wird. Der andere Anschluß 16b der Haltewicklung 16 wird dagegen unmittelbar an dem auf Massepotential liegenden Magnetkern 18 festgeschweißt.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 lug 61 which is screwed onto the contact pin 31 in the main 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, however, is welded directly to the magnetic core 18 which is at ground potential.
Figur 5 zeigt die elektrische Schaltung der gesamten Andrehvorrich¬ tung 63 mit dem Andrehmotor 64 und dem Einrückrelais 10. Daraus ist erkennbar, daß das im Einrückrelais 10 integrierte Hilfsrelais 33 beim Anlegen einer Spannung an Klemme 50 erregt wird und die Relais¬ kontakte 45, 46 über die Kontaktbrücke 44 geschlossen werden. Damit gelangt die Batteriespannung von Klemme 30 über das Hilfsrelais 33 zur Einzugswicklung 15 und Haltewicklung 16, wobei die Haltewicklung 16 unmittelbar gegen Masse geschaltet ist und die Einzugswicklung 15 über den Andrehmotor 64 auf Masse liegt. Das Einrückrelais 10 wird nun eingeschaltet, indem die im Arbeitsluftspalt 65 zwischen Magnet¬ kern 18 und Anker 12 sich aufbauende magnetische Energie den Anker 12 gegen die Rückstellkraft der Feder 24 einzieht und damit über ein Hebelgestänge zunächst das Anlaßritzel vorschiebt. Außerdem wird während des Einziehvorgangs der Schaltbolzen 20 im letzen Hubab¬ schnitt durch die Schraube 23 gegen die Kraft der Feder 24 hochge¬ drückt, sodaß sich die Kontaktbrücke 27 mit der Kraft der Kontakt- druckfeder 29 an die Schaltkontakte der Kontaktbolzen 31 und 32 an¬ legt und damit den Hauptstromkreis der Andrehvorrichtung 63 schließt. Das inzwischen eingspurte Ritzel wird nun vom Andrehmotor 64 angetrieben und die Brennkraftmaschine damit gestartet. Durch Schließen des Hauptstromkreises wird außerdem die zu den Kontakt¬ bolzen 31 und 32 parallel geschaltete Einzugswicklung 15 überbrückt und damit ausgeschaltet, sodaß das Einrückrelais 10 noch durch die Haltewicklung 16 betätigt bleibt. Sobald nun der Anlaßschalter an Klemme 50 geöffnet wird, fällt das Hilfsrelais 33 wieder ab und un¬ terbricht nunmehr auch den Stromkreis für die Haltewicklung 16. Der Anker 12 bewegt sich nun wieder in die Ausgangslage und der Haupt¬ stromkreis der Andrehvorrichtung wird unterbrochen. Figur 6 bis 9 zeigen ein zweites Ausführungsbeispiel der Erfindung, wobei gleiche Teile aus dem ersten Ausführungsbeispiel mit gleichen Bezugszahlen versehen sind. In Abweichung zum ersten Ausführunsbei¬ spiel ist hier das Hilfsrelais 33 im Kontaktraum 25 des Einrückre¬ lais 10 mit dem Wicklungsträger 49 der Relaiswicklung 34 großteils in den Magnetkern 18 eingelassen, um die Baulänge des Einrückrelais 70 so kurz wie möglich zu halten. Außerdem ist anstelle eines Klapp¬ ankers eine weichmagnetische Blattfeder 71 vorgesehen, deren eines Ende mit einer Schraube 72 elektrisch isoliert am Anker 12 befestigt ist und deren anderes, freies -Ende einen ersten Relaiskontakt 73 trägt, der mit einem zweiten, im Anker 12 isoliert eingesetzten Relaiskontakt 74 als Schließer zusammenwirkt. Der mittlere Abschnitt der Blattfeder 71 liegt oberhalb der Relaiswicklung 34, sodaß die Blattfeder 71 bei erregtem Hilfsrelais die Relaiskontakte 73, 74 schließt. Aus dem Schaltbild der Andrehvorrichtung der Figur 9 ist zu entnehmen, daß der feste Relaiskontakt 74 des Hilfsrelais 33 über einen Leiter 75 mit dem Kontaktbolzen 31 als Klemme 30 verbunden ist, und daß der andere Relaiskontakt 73 über die Blattfeder 71 an der Schraube 72 mit einem Ende der Einzugswicklung 15 kontaktiert ist. Die Relaiswicklung 34 ist mit dem nicht auf Masse liegenden Ende gemeinsam mit einem Ende der Haltewicklung 16 über einen weite¬ ren Leiter 76 an eine Anschlußlasche 58 mit einer Anschlußschraube 59 auf dem Schalterdeckel 19 kontaktiert, welche die Klemme 50 bil¬ det. Die anderen Enden der Einzugswicklung 15 und Haltewicklung 16 sind hier gegen Masse geschaltet, indem sie auf dem Massepotential führenden Anker 18 angeschweißt sind.FIG. 5 shows the electrical circuit of the entire starting device 63 with the starting 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 can be closed via the contact bridge 44. 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 pulling in the armature 12 against the restoring force of the spring 24 and thus initially advancing the starter pinion via a lever linkage. In addition, during the pulling-in process, 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 sets and thus closes the main circuit of the starter 63. The now spur pinion is now driven by the starter motor 64 and the internal combustion engine is started with it. By closing the main circuit, 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. As soon as the starter switch at terminal 50 is opened, 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. In a departure from the first embodiment, 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 length of the engagement relay 70 as short as possible. In addition, instead of a hinged armature, a soft magnetic leaf spring 71 is provided, 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 inserted with a second, insulated in the armature 12 Relay contact 74 cooperates as a closer. 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. From the circuit diagram of the starter of Figure 9 it can be seen that the fixed relay contact 74 of the auxiliary relay 33 is connected via a conductor 75 to the contact pin 31 as the 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 in contact with the non-ground end 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.
Bei dem Einrückrelais 70 ist vorgesehen, daß dieses in eingeschalte¬ tem Zustand die Relaiskontakte 73 und 74 des Hilfsrelais 33 zwangs¬ weise öffnet, um dadurch die Einzugswicklung 15 auszuschalten. Zu diesem Zweck ist im Magnetkern 18 ein in Achsrichtung des Ankers 12 verschiebbarer Stift 77 gelagert, der in den Arbeitsluftspalt 65 zwischen Magnetkern 18 und Anker 12 ragt und mit seinem Kopf 77a im Kontaktraum 25 bei abgeschaltetem Einrückrelais gemäß Figur 6 am Magnetkern 18 anliegt. Bei eingeschaltetem Einrückrelais 70 gemäß Figur 7 wird mit dem letzten Hubabschnitt des Ankers 12 der Stift 77 mit seinem Kopf 77a elektrisch isoliert gegen die Blattfeder 71 des Hilfsrelais 33 gedrückt, sodaß die Relaiskontakte 73 und 74 zwangs¬ weise geöffnet werden. In the case of the engaging relay 70, it is provided that it 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. For this purpose, 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. When the engagement relay 70 according to FIG. 7 is switched on, the last stroke section of the armature 12 is used to press the pin 77 with its head 77a in an electrically insulated manner against the leaf spring 71 of the auxiliary relay 33, so that the relay contacts 73 and 74 are forcibly opened.

Claims

Ansprüche Expectations
1. Einrückrelais für Andrehvorrichtungen von Brennkraftmaschinen, bei dem ein Anker durch Einschalten einer Einzugsund einer Halte¬ wicklung des Einrückrelais einerseits über ein Gestänge ein Ritzel der Andrehvorrichtung in einen- Zahnkranz der Brennkraftmaschine ein¬ spurt und andererseits über eine mit Schaltkontakten in einem durch einen Schalterdeckel nach außen abgeschlossenen Kontaktraum des Ein¬ rückrelais zusammenwirkende Kontaktbrücke den Hauptstromkreis eines Andrehmotors der Andrehvorrichtung einschaltet, wobei die Kontakt¬ brücke am Ende eines Schaltbolzens angeordnet ist, der durch einen den Kontaktraum zur Einzugs- und Haltewicklung hin abschließenden Magnetkern hindurchragt und vom Anker zu betätigen ist und wobei zumindest die Einzugswicklung von Relaiskontakten eines Hilfsrelais einzuschalten ist, dadurch gekennzeichnet, daß das Hilfsrelais (33) im Kontaktraum (25) angeordnet ist, wobei ein Ende (34a) seiner Relaiswicklung (34) im Kontaktraum (25) mit dem Massepotential füh¬ renden Magnetkern (18) des Einrückrelais (10) verbunden ist und daß das andere Ende (34b) der Relaiswicklung (34) an einem im Schalter¬ deckel (19) befestigten Anschlußteil (57, 59) kontaktiert ist. 1. Engaging relay for starting devices of internal combustion engines, in which an armature engages a pinion of the starting device in a gear ring of the internal combustion engine via a linkage by switching on a pull-in and a holding winding of the engaging relay on the one hand and on the other hand with a switch contacts in a through a switch cover contact bridge, which is closed off from the outside of the engagement relay and which engages the main circuit of a starter motor of the starter device, the contact bridge being arranged at the end of a switching bolt which projects through a magnetic core which closes the contact space towards the pull-in and holding winding and can be actuated by the armature and wherein at least the pull-in winding of relay contacts of an auxiliary relay is to be switched on, characterized in that the auxiliary relay (33) is arranged in the contact space (25), one end (34a) of its relay winding (34) being in the contact space (25) the magnetic potential (18) of the engagement relay (10) is connected to the ground potential and that the other end (34b) of the relay winding (34) is contacted on a connection part (57, 59) fastened in the switch cover (19).
2. Einrückrelais nach Einspruch 1 dadurch gekennzeichnet, daß das Hilfsrelais (33) mit einem seiner als Schließer ausgebildeten Re¬ laiskontakte (43, 44; 45, 46) zum einen mit dem zum Anschluß (Klemme 30) einer Kraftfahrzeugbatterie verwendetem Schaltkontakt (31) und zum anderen im Kontaktraum (25) mit der Einzugswicklung (15) verbun¬ den ist.2. Engagement relay according to opposition 1, characterized in that the auxiliary relay (33) with one of its relay contacts designed as a make contact (43, 44; 45, 46) on the one hand with the switching contact (31) used for connecting (terminal 30) a motor vehicle battery and secondly in the contact space (25) is connected to the pull-in winding (15).
3. Einrückrelais nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Hilfsrelais (33) am Magnetkern (18) des Einrückrelais (10) fest angeordnet ist.3. engagement relay according to claim 1 or 2, characterized in that the auxiliary relay (33) on the magnetic core (18) of the engagement relay (10) is fixedly arranged.
4. Einrückrelais nach Anspruch 3 dadurch gekennzeichnet, daß das Hilfsrelais (33) unterhalb der Kontaktbrücke (27) auf dem Magnetkern (18) konzentrisch um den vom Anker (12) des Einrückrelais (10) zu betätigenden Schaltbolzen (20) angeordnet ist.4. engagement relay according to claim 3, characterized in that the auxiliary relay (33) below the contact bridge (27) on the magnetic core (18) is arranged concentrically around the switching bolt (20) to be actuated by the armature (12) of the engagement relay (10).
5. Einrückrelais nach Anspruch 4 dadurch gekennzeichnet, daß die Relaiswicklung (34) des Hilfsrelais (33) mit ihrem Wicklungsträger (49) auf eine Magnetkernhülse (35) aufgeschoben ist, die konzentrisch um eine Isolierstoffbuchse (26) angeordnet ist, welche die Kontaktbrücke (27) aufnehmend am Ende des Schaltbolzens (20) befestigt ist.5. engagement relay according to claim 4, characterized in that the relay winding (34) of the auxiliary relay (33) with its winding support (49) is pushed onto a magnetic core sleeve (35) which is arranged concentrically around an insulating bushing (26) which the contact bridge ( 27) is attached to the end of the switching pin (20).
6. Einrückrelais nach Anspruch 5 dadurch gekennzeichnet, daß die Magnetkernhülse (35) in einem entsprechenden Loch im Joch (36) eines die Relaiswicklung (34) aufnehmenden U-förmigen Magnetbügels (37) befestigt ist, auf dessen einem Schenkelende (38) ein Klappanker (39) mit einer Rückstellfeder (40) gelagert ist, dessen freies Ende eine Kontaktfeder (41) mit einer Kontaktbrücke (44) des Hilfsrelais (33) trägt, die mit zwei feststehenden Relaiskontakten (45, 46) zusammenwirkt.6. engagement relay according to claim 5, characterized in that the magnetic core sleeve (35) in a corresponding hole in the yoke (36) of the relay winding (34) receiving U-shaped magnetic bracket (37) is fixed, on one leg end (38) a hinged armature (39) is mounted with a return spring (40), the free end of which carries a contact spring (41) with a contact bridge (44) of the auxiliary relay (33) which interacts with two fixed relay contacts (45, 46).
7. Einrückrelais nach Anspruch 6 dadurch gekennzeichnet, daß der Magnetkern (18) des Einrückrelais (10) zum Kontaktraum (25) hin eine Isolierplatte (47) trägt, auf der der Magnetbügel (37) mit der Magnetkernhülse (35) und der Wicklungsträger (41) mit der Relaiswicklung (34) sowie die festen Relaiskontakte (45, 46) befestigt sind.7. engagement relay according to claim 6, characterized in that the magnetic core (18) of the engagement relay (10) to the contact space (25) one Insulating plate (47) carries on which the magnetic bracket (37) with the magnetic core sleeve (35) and the winding support (41) with the relay winding (34) and the fixed relay contacts (45, 46) are attached.
8. Einrückrelais nach Anspruch 7 dadurch gekennzeichnet, daß die Isolierplatte (47) mit mindestens einer Leiterbahn (52, 53) versehen ist, die einerseits mit einem Relaiskontakt (45, 46) des Hilfsrelais (33) und andererseits mit mindestens mit einem Ende (15a) der Ein¬ rückwicklung (15) verbunden isτ..8. engagement relay according to claim 7, characterized in that the insulating plate (47) is provided with at least one conductor track (52, 53) which on the one hand with a relay contact (45, 46) of the auxiliary relay (33) and on the other hand with at least one end ( 15a) of the rewinding (15) is connected.
9. Einrückrelais nach Anspruch 8 dadurch gekennzeichnet, daß der andere Relaiskontakt (45) des Hilfsrelais (33) mit dem Schaltkontakt (31) als Anschlußklemme (30) des Hauptstromkreises verbunden ist, indem ein Leiter (60) von der mit dem Relaiskontakt (45) kontaktier¬ ten Leiterbahnen (52) der Isolierplatte (47) ausgehend durch den Schalterdeckel (19) hindurchgeführt und außen mit einer Anschlu߬ lasche (61) kontaktiert ist, die von außen am Schaltkontakt (31) des Einrückrelais (10) festgeschraubt ist.9. engagement relay according to claim 8, characterized in that the other relay contact (45) of the auxiliary relay (33) with the switching contact (31) as a connecting terminal (30) of the main circuit is connected by a conductor (60) of which with the relay contact (45 ) contacted conductor tracks (52) of the insulating plate (47) starting from the switch cover (19) and is externally contacted with a connecting lug (61) which is screwed from the outside to the switching contact (31) of the engagement relay (10).
10. Einrückrelais nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß Einzugs- und Haltewicklung (15, 16) mit ihrem einen Ende (15a, 16a) im Kontaktraum (25) gemeinsam an einem Relais¬ kontakt (46) des Hilfsrelais (33) angschlossen sind, daß das andere Ende (15b) der Einrückwicklung (15) mit dem zum Andrehmotor (64) führenden Schaltkontakt (32) des Einrückrelais (10) und das andere Ende (16b) der Haltewicklung (16) mit dem Massepotential führenden Magnetkern (18) des Einrückrelais (10) verbunden ist.10. engagement relay according to one of the preceding claims, characterized in that pull-in and holding winding (15, 16) with one end (15a, 16a) in the contact space (25) together on a Relais¬ contact (46) of the auxiliary relay (33) are connected that the other end (15b) of the engaging winding (15) with the switching contact (32) leading to the starting motor (64) of the engaging relay (10) and the other end (16b) of the holding winding (16) with the magnetic potential leading to the ground potential ( 18) of the engagement relay (10) is connected.
11. Einrückrelais nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß im Magnetkern (18) ein in Achsrichtung des Ankers (12) verschiebbarer Stift (77) gelagert ist, der in den Arbeitsluftspalt (65) zwischen Magnetkern (18) und Anker (12) ragt und bei eingezogenem Anker (12) die Relaiskontakte (45, 46) des Hilfsrelais (33) öffnet. 11. Engagement relay according to one of the preceding claims, characterized in that in the magnetic core (18) in the axial direction of the armature (12) displaceable pin (77) is mounted, which is in the working air gap (65) between the magnetic core (18) and armature (12th ) protrudes and opens the relay contacts (45, 46) of the auxiliary relay (33) when the armature (12) is retracted.
EP94900732A 1992-12-18 1993-11-27 Actuating relay for starting devices Expired - Lifetime EP0674749B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4242930 1992-12-18
DE4242930A DE4242930C2 (en) 1992-12-18 1992-12-18 Engagement relay for starting devices
PCT/DE1993/001132 WO1994015093A1 (en) 1992-12-18 1993-11-27 Actuating relay for starting devices

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

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US (1) US5677656A (en)
EP (1) EP0674749B1 (en)
JP (1) JPH08504913A (en)
KR (1) KR950704610A (en)
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WO (1) WO1994015093A1 (en)

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Publication number Priority date Publication date Assignee Title
DE4432297C2 (en) * 1994-09-10 2002-06-27 Bosch Gmbh Robert Engagement relay for starting device for internal combustion engines
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US5677656A (en) 1997-10-14
DE4242930A1 (en) 1994-06-23
DE4242930C2 (en) 1998-07-09
KR950704610A (en) 1995-11-20
WO1994015093A1 (en) 1994-07-07
DE59303213D1 (en) 1996-08-14
EP0674749B1 (en) 1996-07-10
JPH08504913A (en) 1996-05-28

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