EP2677161B1 - Starter relay for a starting device - Google Patents

Starter relay for a starting device Download PDF

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Publication number
EP2677161B1
EP2677161B1 EP13168772.5A EP13168772A EP2677161B1 EP 2677161 B1 EP2677161 B1 EP 2677161B1 EP 13168772 A EP13168772 A EP 13168772A EP 2677161 B1 EP2677161 B1 EP 2677161B1
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EP
European Patent Office
Prior art keywords
switching
armature
winding
starter relay
starter
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EP13168772.5A
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German (de)
French (fr)
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EP2677161A3 (en
EP2677161A2 (en
Inventor
Martin Mezger
Stefan Tumback
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SEG Automotive Germany GmbH
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SEG Automotive Germany GmbH
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Publication of EP2677161A2 publication Critical patent/EP2677161A2/en
Publication of EP2677161A3 publication Critical patent/EP2677161A3/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • 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
    • F02N11/087—Details of the switching means in starting circuits, e.g. relays or electronic switches
    • 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
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
    • F02N15/067—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement the starter comprising an electro-magnetically actuated lever

Definitions

  • the invention relates to an electromagnetic starter relay for a starting device for an internal combustion engine according to the preamble of claim 1.
  • a starting device for an internal combustion engine which has a starter pinion, which is adjustable by means of an electromagnetic starter relay between an axially retracted non-functional position and an advanced engagement position in which engages the starter pinion in a ring gear of the internal combustion engine.
  • an electromagnetic starter relay To start the starter relay is actuated, in this case the adjusting movement of the lifting armature of the starter relay is transmitted via a lever in the axial adjusting movement of the starter pinion.
  • a turn-on device for starting an electric drive motor is integrated, via which the starter pinion is driven in rotation in the engaged state.
  • a contact bridge is moved against two mating contacts in the Einschalt issued, so that an electric circuit for starting the electric starter motor is closed.
  • a starter with an electromagnetic starter relay which has two separate relay windings in a housing, which are arranged axially one behind the other.
  • the first relay winding has the function of a pull-in winding and adjusts a lifting armature, which via an engaging lever with coupled to the starter pinion.
  • the second relay winding serves as a switching winding and is assigned to a switch-on, via which the circuit of the starter motor is switched on or off.
  • the turn-on winding actuates for this purpose a switching armature, which presses in the adjusted state, a contact plate against two mating contacts to close the circuit of the starter motor.
  • the lifting armature and the switching armature are separated from each other by an electromagnetically excitable core part, on which also a lifting armature return spring is supported and which forms an electromagnetic circuit with the lifting armature and the housing of the starter relay.
  • the invention is based on the object, with simple constructive measures to allow a problem-free meshing of the starter pinion in the ring gear of an internal combustion engine under different operating conditions.
  • the electromagnetic starter relay is used in starting devices for internal combustion engines to adjust a starter pinion between an inoperative position and an engagement position with a ring gear of the internal combustion engine.
  • the starting device also has an electric starter motor which can be switched on via a switching movement of the starter relay.
  • a switch-on device is integrated in the starter relay, which can be actuated via the starter relay.
  • the starter motor drives the starter pinion in the engaged state rotationally, so that the ring gear is driven and the internal combustion engine is started.
  • adjusting movement of the starter pinion between the non-functional position and the engagement position with the ring gear of the internal combustion engine is preferably an axial movement along the longitudinal axis of the starter pinion.
  • pivoting movements come as adjusting movement of the starter pinion into consideration.
  • the switch-on device closes a circuit via which the starter motor is supplied with power.
  • the switch-on device has a switching element which is adjusted upon actuation of the starter relay in a switching position in which the switching element is in contact with two mating contacts of the circuit in which the starter motor is located.
  • the starter relay has a first relay winding which forms the pull-in winding, in the energization of which the lifting armature of the starter relay is adjusted and the starter pinion is adjusted between the non-functional position and the engaged position with the ring gear of the internal combustion engine. Furthermore, the starter relay is provided with a second relay winding, which forms a switching winding which acts on the switching element for switching on the Einschalt heard.
  • the starter relay is thus equipped with two different windings, which can each be supplied with current, wherein the pull-in winding preferably exclusively actuates the lifting armature and the switching winding preferably only adjusts the switching element of the switching-on device.
  • Both adjusting movements ie both the lifting armature and the switching element, are axial adjusting movements.
  • coupled movements come into consideration, so that, for example, when energizing the pull-in winding and the switching element of the Einschalt Surprise can be adjusted, but without reaching the switch-on.
  • the mutual influence of the magnetic circuits is just so strong that the armatures can each be pulled independently of each other and that on the other hand, the energization of one of the two windings is sufficient to keep both armatures in their working position.
  • the energization of the pull-in winding and the switching winding is preferably carried out in an independent manner. In principle, however, it is also possible to control the energization of the switch-on winding via the adjusting movement of the lifting armature, so that when a defined position of the lifting armature is reached, the energization of the switching winding is switched on.
  • the switching element of the Einschalt listening is designed as an axially adjustable switching armature.
  • the switching armature is a component formed separately from the lifting armature, which is preferably arranged coaxially to the lifting armature and adjustable. The adjusting movement of the lifting armature and the switching armature when the feed winding or the switching winding is energized advantageously takes place in the same direction.
  • axially one behind the other arrangement of pull-in winding and switching winding of the lifting armature and the switching armature are in the initial state preferably axially spaced from each other, so that upon actuation of the lifting armature for advancing the starter pinion contact the pinion with the ring gear before the contact of the lifting armature with the still located in the starting position switching armature.
  • the switching armature which consists of a magnetically conductive material, forms the magnetic core or the core plate for the lifting armature in the starter relay according to the invention, so that the lifting armature and the switching armature lie in a common magnetic circuit.
  • the magnetic circuit which is responsible for the adjustment movement of the starter pinion, the conductive housing of the starter pinion, the lifting armature and the switching armature and possibly a magnetically conductive bridge between the two windings. Since no additional magnetic core is needed to form the magnetic return path, a very compact design of the starter relay can be achieved despite two relay windings.
  • the design with constructive independence of switching armature and lifting armature as well as the independent power supply of pull-in winding and switching winding allows versatile applications with at the same time compact design of the electromagnetic starter relay.
  • the two windings are switched in a suitable time sequence. If, for example, the speed of the ring gear is below a limit value, advantageously the pull-in winding is first energized so that the lifting armature is actuated and the starter pinion is moved from the starting position to the engaged position. Subsequently, the switching winding is energized in addition, so that the switching armature is moved to the switching position and the circuit of the electric starter motor is closed and the starter motor begins to turn.
  • the energization of the pull-in winding can be switched off, whereupon the starter pinion by spring force and / or by one of Sprocket caused recoil from the engagement position is adjusted back to the non-functional position.
  • the switching coil can be energized before contact with the ring gear of the engine to increase the speed of the starter pinion and reduce the speed difference between the starter pinion and ring gear. As a result, load impacts are reduced in the drive train of the starting device.
  • both the lifting armature and the switching armature are subjected to a force in their starting position via a respective armature return spring.
  • the respective relay winding must be energized and the relevant armature against the force of its associated armature return spring can be adjusted.
  • the Hubanker Wegstellfeder the force applied to the lifting armature in its initial position can be supported on the switching armature.
  • This embodiment has the advantage that it can be realized structurally in a simple manner.
  • the restoring force of the shift armature return spring must be designed in this case so that it is greater in the non-functional position than the Hubanker Wegstellfeder in its non-functional position.
  • the Hubanker Wegstellfeder can also be supported on the side facing away from the switching armature on the housing of the starter relay or a component connected to the housing. This ensures that the switching element of the Einschalt raised is not acted upon by the Hubanker Wegstellfeder and the forces on the switching element are independent of the Hubankerdoch.
  • the switching element as a switching armature this may be in the form of a sleeve which receives a support member for the Hubanker Wegstellfeder, wherein the support member on the housing or a switch cover of the Einschalt issued which is fixedly connected to the housing, is supported.
  • the support member is fixed to the housing and does not participate in a movement of the lifting armature or the switching member.
  • the support member receives the Hubanker Wegstellfeder on the side facing away from the lifting armature.
  • the pull-in winding and the switching winding are expediently arranged axially one behind the other in the housing of the starter relay.
  • the two windings are advantageously arranged axially spaced from each other, and it may be appropriate that in the gap between pull-in winding and switching winding a divider protrudes, which advantageously consists of a magnetically conductive material.
  • the divider is integrally formed with the housing and protrudes radially inwardly from the housing outer wall and rotates in the form of a ring on the inner wall of the housing. Since the divider directs the magnetic flux, the magnetic circuits of the windings can be separated from each other.
  • the engagement winding overlaps the switching armature in its initial position axially at least partially. This ensures that the switching armature in the starting position, that is to say in the case of a non-energized switching winding, together with the lifting armature lies in an electromagnetic circuit.
  • starting device 1 for an internal combustion engine has a starter pinion 2, which is brought to start the internal combustion engine 4 in engagement with a ring gear 3 of the internal combustion engine.
  • the starter pinion 2 is mounted axially displaceably on a shaft 5 as indicated by the double arrow, wherein the starter pinion 2 is non-rotatably coupled to the shaft 5.
  • the starter pinion 2 is adjusted between a retracted non-functional position and an advanced engagement position with the ring gear 3 of the internal combustion engine 4 via a starter relay 6 which is formed electromagnetically and comprises two energizable relay windings 7, 15 and a lifting armature 8, which when energizing the first relay windings 7, which has the function of a pull-in winding is pulled into this axially.
  • the lifting armature 8 actuates an engaging lever 9, which acts on a Einspurfeder 13, which rests on a driver 14 of a roller freewheel.
  • the starter pinion 2 is coupled on the output side with the driver 14, so that the axial advancing movement of the driver 14 is converted into the desired axial adjusting movement of the starter pinion 2 between the non-functional position and the engaged position.
  • the rotating drive movement on the shaft 5 or the starter pinion 2 is generated by means of an electric starter motor 11, which is coupled via a gear 12, for example a planetary gear with the shaft 5.
  • an electric starter motor 11 which is coupled via a gear 12, for example a planetary gear with the shaft 5.
  • the starter motor 11 is switched on via a switch-on device 16, which is integrated in the starter relay 6.
  • the circuit is closed in the Einschalt noticed 16 by means of a switching element, which is designed as a switching armature and is adjusted when energizing the second relay winding 15, which has the function of a switching winding.
  • the starter motor 11 is set in motion and the shaft 5 and the starter pinion 2 driven in rotation.
  • the starting device 1 is associated with a control or control device 10, via which the functions of the starter relay 6 and the starter motor 11 are controlled. It is particularly possible to carry out the energization of the pull-in winding 7 and the switching winding 15 independently of each other.
  • a starter relay 6 is shown in longitudinal section.
  • the starter relay 6 has two relay windings 7, 15, which are arranged axially one behind the other in the housing 18 of the starter relay, wherein between the relay windings 7, 15, an air gap 30 is located.
  • the first relay winding 7 serves as a pull-in winding for the axial adjustment of the lifting armature 8, which causes the adjusting movement of the starter pinion.
  • the second relay winding 15 is assigned to the Einschalt Surprise 16 for starting the electric starter motor and adjusts when energized the switching armature 23, which is preferably subjected to a force of a shift armature return spring to its original position. When current is applied to the switching winding 15, the switching armature 23 is moved against the force of the switching armature return spring, whereby the circuit is closed.
  • the Hubanker Wegstellfeder 20 the force applied to the lifting armature 8 in its initial position, is supported on the end face of the switching armature 23 from.
  • the lifting armature 8 forms with the switching armature 23 and a part of the housing 18 an electromagnetic circuit.
  • FIG. 3 As the sectional view according to Fig. 3 can be seen by the starter relay 6, the lifting armature 8 carrier of a plunger 17, at the free end of the engaging lever 9 (FIG. Fig. 1 ) attacks.
  • the lifting armature 8 is held axially displaceable in the housing 18 of the starter relay 6 and is drawn into the housing in the direction of a magnetic core 19 when the feed winding 7 is energized.
  • the lifting armature 8 is urged axially by a lifting armature return spring 20 in the direction of its starting position.
  • the Hubanker Wegstellfeder 20 is supported on the side of a switching armature 23 on a support member 21, which is held fixed to the housing and in particular on a switch cover 29 of the Einschalt Republic 16 is supported.
  • the pull-in winding 7 and the switching winding 15 are arranged axially one behind the other on the inner wall of the housing 18 and separated by a separating web 22 which protrudes into the axial gap between the windings 7, 15.
  • the divider 22 is preferably made of a magnetically conductive material and is formed as a ring encircling the inner wall of the housing 18.
  • the switching winding 15 is partially overlapped axially in the initial state of the pull-in winding 7.
  • the turn-on device 16 for switching on and off of the electric starter motor is integrated into the starter relay 6 or arranged on the starter relay 6 and fixedly connected to the housing 18.
  • the switching-on device 16 has a switching armature 23, which is displaced axially when the associated switching winding 15 is energized from the starting position in the direction of the magnetic core 19, which is arranged axially adjacent to the closing device 16 in the housing 18.
  • Firmly connected to the switching armature 23 is a switching sleeve 24 which, like the switching armature 23, is mounted coaxially with the lifting armature 8 and is adjustable along the longitudinal axis of the starter relay 6.
  • the shift sleeve 24 receives the pin-shaped support member 21, on which the Hubanker Wegstellfeder 20 is supported, wherein the support member 21 is held fixed to the housing and the switching sleeve 24 can be adjusted axially when energizing the switching coil 15 against the force of a switching armature return spring 25.
  • a contact bridge 26, which is firmly connected to the switching sleeve 24 comes into electrical contact with two mating contacts 27, 28, which are in the circuit of the electric starter motor, whereby the circuit is closed and the electrical Starter motor is started.
  • the energization of the pull-in winding 7 and the switching winding 15 is basically independent of each other. This allows various procedures to be performed depending on the current operating state. In particular, one-track operations are possible in a still rotating ring gear of the internal combustion engine, for example, at a restart shortly after switching off the internal combustion engine when the starter pinion must be meshed in the expiring sprocket.

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

Description

Die Erfindung bezieht sich auf ein elektromagnetisches Starterrelais für eine Startvorrichtung für eine Brennkraftmaschine nach dem Oberbegriff des Anspruches 1.The invention relates to an electromagnetic starter relay for a starting device for an internal combustion engine according to the preamble of claim 1.

Stand der TechnikState of the art

Aus der DE 10 2005 021 227 A1 ist eine Startvorrichtung für eine Brennkraftmaschine bekannt, die ein Starterritzel aufweist, welches mittels eines elektromagnetischen Starterrelais zwischen einer axial zurückgezogenen Außerfunktionsposition und einer vorgerückten Eingriffsposition verstellbar ist, in der das Starterritzel in einen Zahnkranz der Brennkraftmaschine eingreift. Zum Starten wird das Starterrelais betätigt, hierbei wird die Stellbewegung des Hubankers des Starterrelais über einen Hebel in die axiale Stellbewegung des Starterritzels übertragen.From the DE 10 2005 021 227 A1 a starting device for an internal combustion engine is known, which has a starter pinion, which is adjustable by means of an electromagnetic starter relay between an axially retracted non-functional position and an advanced engagement position in which engages the starter pinion in a ring gear of the internal combustion engine. To start the starter relay is actuated, in this case the adjusting movement of the lifting armature of the starter relay is transmitted via a lever in the axial adjusting movement of the starter pinion.

In das Starterrelais ist eine Einschalteinrichtung zum Starten eines elektrischen Antriebsmotors integriert, über den das Starterritzel im eingespurten Zustand drehend angetrieben wird. Bei maximaler Auslenkung des Hubankers wird in der Einschalteinrichtung eine Kontaktbrücke gegen zwei Gegenkontakte bewegt, so dass ein elektrischer Stromkreis zum Starten des elektrischen Startermotors geschlossen wird.In the starter relay a turn-on device for starting an electric drive motor is integrated, via which the starter pinion is driven in rotation in the engaged state. At maximum deflection of the lifting armature a contact bridge is moved against two mating contacts in the Einschalteinrichtung, so that an electric circuit for starting the electric starter motor is closed.

In der DE 10 2009 027 117 A1 wird eine Startvorrichtung mit einem elektromagnetischen Starterrelais beschrieben, der in einem Gehäuse zwei separate Relaiswicklungen aufweist, welche axial hintereinander liegend angeordnet sind. Die erste Relaiswicklung hat die Funktion einer Einzugswicklung und verstellt einen Hubanker, der über einen Einrückhebel mit dem Starterritzel gekoppelt ist. Die zweite Relaiswicklung dient als Schaltwicklung und ist einer Einschalteinrichtung zugeordnet, über die der Stromkreis des Startermotors ein- bzw. ausgeschaltet wird. Die Einschaltwicklung betätigt zu diesem Zweck einen Schaltanker, der im verstellten Zustand eine Kontaktplatte gegen zwei Gegenkontakte drückt, um den Stromkreis des Startermotors zu schließen. Der Hubanker und der Schaltanker sind von einem elektromagnetisch erregbaren Kernteil voneinander separiert, an dem sich auch eine Hubankerrückstellfeder abstützt und das mit dem Hubanker und dem Gehäuse des Starterrelais einen elektromagnetischen Kreis bildet.In the DE 10 2009 027 117 A1 a starter with an electromagnetic starter relay is described, which has two separate relay windings in a housing, which are arranged axially one behind the other. The first relay winding has the function of a pull-in winding and adjusts a lifting armature, which via an engaging lever with coupled to the starter pinion. The second relay winding serves as a switching winding and is assigned to a switch-on, via which the circuit of the starter motor is switched on or off. The turn-on winding actuates for this purpose a switching armature, which presses in the adjusted state, a contact plate against two mating contacts to close the circuit of the starter motor. The lifting armature and the switching armature are separated from each other by an electromagnetically excitable core part, on which also a lifting armature return spring is supported and which forms an electromagnetic circuit with the lifting armature and the housing of the starter relay.

Offenbarung der ErfindungDisclosure of the invention

Der Erfindung liegt die Aufgabe zu Grunde, mit einfachen konstruktiven Maßnahmen ein problemloses Einspuren des Starterritzels in den Zahnkranz einer Brennkraftmaschine unter unterschiedlichen Betriebsbedingungen zu ermöglichen.The invention is based on the object, with simple constructive measures to allow a problem-free meshing of the starter pinion in the ring gear of an internal combustion engine under different operating conditions.

Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Anspruches 1 gelöst. Die Unteransprüche geben zweckmäßige Weiterbildungen an.This object is achieved with the features of claim 1. The dependent claims indicate expedient developments.

Das elektromagnetische Starterrelais wird in Startvorrichtungen für Brennkraftmaschinen eingesetzt, um ein Starterritzel zwischen einer Außerfunktionsposition und einer Eingriffsposition mit einem Zahnkranz der Brennkraftmaschine zu verstellen. Die Startvorrichtung weist außerdem einen elektrischen Startermotor auf, der über eine Schaltbewegung des Starterrelais einschaltbar ist. Hierzu ist in das Starterrelais eine Einschalteinrichtung integriert, die über das Starterrelais betätigbar ist. Der Startermotor treibt das Starterritzel im eingespurten Zustand drehend an, so dass auch der Zahnkranz angetrieben und die Brennkraftmaschine gestartet wird.The electromagnetic starter relay is used in starting devices for internal combustion engines to adjust a starter pinion between an inoperative position and an engagement position with a ring gear of the internal combustion engine. The starting device also has an electric starter motor which can be switched on via a switching movement of the starter relay. For this purpose, a switch-on device is integrated in the starter relay, which can be actuated via the starter relay. The starter motor drives the starter pinion in the engaged state rotationally, so that the ring gear is driven and the internal combustion engine is started.

Bei der Stellbewegung des Starterritzels zwischen der Außerfunktionsposition und der Eingriffsposition mit dem Zahnkranz der Brennkraftmaschine handelt es sich vorzugsweise um eine axiale Bewegung entlang der Längsachse des Starterritzels. Grundsätzlich kommen aber auch Schwenkbewegungen als Stellbewegung des Starterritzels in Betracht.In the adjusting movement of the starter pinion between the non-functional position and the engagement position with the ring gear of the internal combustion engine is preferably an axial movement along the longitudinal axis of the starter pinion. In principle, however, pivoting movements come as adjusting movement of the starter pinion into consideration.

Die Einschalteinrichtung schließt einen Stromkreis, über den der Startermotor mit Strom versorgt wird. Die Einschalteinrichtung weist ein Schaltglied auf, das bei Betätigung des Starterrelais in eine Schaltposition verstellt wird, in welcher das Schaltglied in Kontakt mit zwei Gegenkontakten des Stromkreises steht, in dem der Startermotor liegt.The switch-on device closes a circuit via which the starter motor is supplied with power. The switch-on device has a switching element which is adjusted upon actuation of the starter relay in a switching position in which the switching element is in contact with two mating contacts of the circuit in which the starter motor is located.

Das Starterrelais weist eine erste Relaiswicklung auf, welche die Einzugswicklung bildet, bei deren Bestromung der Hubanker des Starterrelais verstellt und das Starterritzel zwischen der Außerfunktions- und der Eingriffsposition mit dem Zahnkranz der Brennkraftmaschine verstellt wird. Des Weiteren ist das Starterrelais mit einer zweiten Relaiswicklung versehen, die eine Schaltwicklung bildet, welche das Schaltglied zum Einschalten der Einschalteinrichtung beaufschlagt. Das Starterrelais ist somit mit zwei verschiedenen Wicklungen ausgestattet, die jeweils bestrombar sind, wobei die Einzugswicklung vorzugsweise ausschließlich den Hubanker betätigt und die Schaltwicklung vorzugsweise ausschließlich das Schaltglied der Einschalteinrichtung verstellt. Bei beiden Stellbewegungen, also sowohl des Hubankers als auch des Schaltglieds, handelt es sich um axiale Stellbewegungen. Gegebenenfalls kommen auch gekoppelte Bewegungen in Betracht, so dass beispielsweise bei einer Bestromung der Einzugswicklung auch das Schaltglied der Einschalteinrichtung verstellt werden kann, ohne jedoch die Einschaltposition zu erreichen.The starter relay has a first relay winding which forms the pull-in winding, in the energization of which the lifting armature of the starter relay is adjusted and the starter pinion is adjusted between the non-functional position and the engaged position with the ring gear of the internal combustion engine. Furthermore, the starter relay is provided with a second relay winding, which forms a switching winding which acts on the switching element for switching on the Einschalteinrichtung. The starter relay is thus equipped with two different windings, which can each be supplied with current, wherein the pull-in winding preferably exclusively actuates the lifting armature and the switching winding preferably only adjusts the switching element of the switching-on device. Both adjusting movements, ie both the lifting armature and the switching element, are axial adjusting movements. Optionally, coupled movements come into consideration, so that, for example, when energizing the pull-in winding and the switching element of the Einschalteinrichtung can be adjusted, but without reaching the switch-on.

In einer weiteren vorteilhaften Ausführung ist die gegenseitige Beeinflussung der Magnetkreise gerade so stark, dass die Anker jeweils unabhängig voneinander eingezogen werden können und dass andererseits die Bestromung einer der beiden Wicklungen ausreicht, um beide Anker in ihrer Arbeitsposition zu halten.In a further advantageous embodiment, the mutual influence of the magnetic circuits is just so strong that the armatures can each be pulled independently of each other and that on the other hand, the energization of one of the two windings is sufficient to keep both armatures in their working position.

Die Bestromung der Einzugswicklung und der Schaltwicklung erfolgt bevorzugt in unabhängiger Weise. Grundsätzlich möglich ist es aber auch, die Bestromung der Einschaltwicklung über die Stellbewegung des Hubankers zu steuern, so dass mit dem Erreichen einer definierten Position des Hubankers die Bestromung der Schaltwicklung eingeschaltet wird.The energization of the pull-in winding and the switching winding is preferably carried out in an independent manner. In principle, however, it is also possible to control the energization of the switch-on winding via the adjusting movement of the lifting armature, so that when a defined position of the lifting armature is reached, the energization of the switching winding is switched on.

Das Schaltglied der Einschalteinrichtung ist als ein axial verstellbarer Schaltanker ausgeführt. Der Schaltanker ist ein separat vom Hubanker ausgebildetes Bauteil, das vorzugsweise koaxial zum Hubanker angeordnet und verstellbar ist. Die Verstellbewegung von Hubanker und Schaltanker bei einer Bestromung der Einzugswicklung bzw. der Schaltwicklung erfolgt vorteilhafterweise in die gleiche Richtung. Bei einer zweckmäßigen, axial hintereinander liegenden Anordnung von Einzugswicklung und Schaltwicklung liegen der Hubanker und der Schaltanker im Ausgangszustand bevorzugt axial beabstandet zueinander, so dass bei einer Betätigung des Hubankers zum Vorrücken des Starterritzels ein Kontakt des Ritzels mit dem Zahnkranz vor dem Kontakt des Hubankers mit dem noch in der Ausgangslage befindlichen Schaltanker erfolgt.The switching element of the Einschalteinrichtung is designed as an axially adjustable switching armature. The switching armature is a component formed separately from the lifting armature, which is preferably arranged coaxially to the lifting armature and adjustable. The adjusting movement of the lifting armature and the switching armature when the feed winding or the switching winding is energized advantageously takes place in the same direction. In an expedient, axially one behind the other arrangement of pull-in winding and switching winding of the lifting armature and the switching armature are in the initial state preferably axially spaced from each other, so that upon actuation of the lifting armature for advancing the starter pinion contact the pinion with the ring gear before the contact of the lifting armature with the still located in the starting position switching armature.

Der Schaltanker, der aus einem magnetisch leitfähigen Material besteht, bildet beim erfindungsgemäßen Starterrelais den Magnetkern bzw. die Kernplatte für den Hubanker, so dass der Hubanker und der Schaltanker in einem gemeinsamen magnetischen Kreis liegen. Insgesamt umfasst der magnetische Kreis, welcher für die Verstellbewegung des Starterritzels verantwortlich ist, das leitfähige Gehäuse des Starterritzels, den Hubanker und den Schaltanker sowie ggf. einen magnetisch leitenden Steg zwischen den zwei Wicklungen. Da kein zusätzlicher Magnetkern zum Bilden des magnetischen Rückschlusses benötigt wird, kann trotz zweier Relaiswicklungen eine sehr kompakte Bauform des Starterrelais erreicht werden.The switching armature, which consists of a magnetically conductive material, forms the magnetic core or the core plate for the lifting armature in the starter relay according to the invention, so that the lifting armature and the switching armature lie in a common magnetic circuit. Overall, the magnetic circuit, which is responsible for the adjustment movement of the starter pinion, the conductive housing of the starter pinion, the lifting armature and the switching armature and possibly a magnetically conductive bridge between the two windings. Since no additional magnetic core is needed to form the magnetic return path, a very compact design of the starter relay can be achieved despite two relay windings.

Die Ausführung mit konstruktiver Unabhängigkeit von Schaltanker und Hubanker sowie der unabhängigen Bestrombarkeit von Einzugswicklung und Schaltwicklung erlaubt vielseitige Anwendungen bei zugleich kompakter Ausführung des elektromagnetischen Starterrelais. Zum Starten der Brennkraftmaschine werden die beiden Wicklungen in einer geeigneten zeitlichen Abfolge geschaltet. Falls beispielsweise die Drehzahl des Zahnkranzes unterhalb eines Grenzwertes liegt, wird vorteilhafterweise zunächst die Einzugswicklung bestromt, so dass der Hubanker betätigt und das Starterritzel von der Ausgangsin die Einrückposition verstellt wird. Anschließend wird zusätzlich die Schaltwicklung bestromt, so dass der Schaltanker in die Schaltposition verstellt und der Stromkreis des elektrischen Startermotors geschlossen wird und der Startermotor sich zu drehen beginnt. Nach erfolgtem Start der Brennkraftmaschine kann die Bestromung der Einzugswicklung abgeschaltet werden, woraufhin das Starterritzel durch Federkraft und/oder durch einen vom Zahnkranz bewirkten Rückstoß aus der Einrückposition wieder in die Außerfunktionsposition verstellt wird.The design with constructive independence of switching armature and lifting armature as well as the independent power supply of pull-in winding and switching winding allows versatile applications with at the same time compact design of the electromagnetic starter relay. To start the internal combustion engine, the two windings are switched in a suitable time sequence. If, for example, the speed of the ring gear is below a limit value, advantageously the pull-in winding is first energized so that the lifting armature is actuated and the starter pinion is moved from the starting position to the engaged position. Subsequently, the switching winding is energized in addition, so that the switching armature is moved to the switching position and the circuit of the electric starter motor is closed and the starter motor begins to turn. After the start of the engine, the energization of the pull-in winding can be switched off, whereupon the starter pinion by spring force and / or by one of Sprocket caused recoil from the engagement position is adjusted back to the non-functional position.

Liegt dagegen die Drehzahl des Zahnkranzes über dem Grenzwert, so kann die Schaltwicklung bereits vor dem Kontakt mit dem Zahnkranz der Brennkraftmaschine bestromt werden, um die Drehzahl des Starterritzels anzuheben und die Drehzahldifferenz zwischen Starterritzel und Zahnkranz zu verringern. Hierdurch werden Lastschläge im Antriebsstrang der Startvorrichtung reduziert.In contrast, if the speed of the ring gear is above the limit, the switching coil can be energized before contact with the ring gear of the engine to increase the speed of the starter pinion and reduce the speed difference between the starter pinion and ring gear. As a result, load impacts are reduced in the drive train of the starting device.

Vorteilhafterweise sind sowohl der Hubanker als auch der Schaltanker über jeweils eine Ankerrückstellfeder in ihre Ausgangsposition kraftbeaufschlagt. Zum Auslenken des Hubankers bzw. des Schaltankers muss die jeweilige Relaiswicklung bestromt werden und der betreffende Anker gegen die Kraft der ihm zugeordneten Ankerrückstellfeder verstellt werden.Advantageously, both the lifting armature and the switching armature are subjected to a force in their starting position via a respective armature return spring. To deflect the lifting armature or the switching armature, the respective relay winding must be energized and the relevant armature against the force of its associated armature return spring can be adjusted.

Die Hubankerrückstellfeder, die den Hubanker in dessen Ausgangsposition kraftbeaufschlagt, kann am Schaltanker abgestützt sein. Diese Ausführung hat den Vorteil, dass sie sich konstruktiv in einfacher Weise realisieren lässt. Die Rückstellkraft der Schaltankerrückstellfeder muss in diesem Fall so ausgelegt sein, dass diese in der Außerfunktionsposition größer ist als die der Hubankerrückstellfeder in deren Außerfunktionsposition.The Hubankerrückstellfeder, the force applied to the lifting armature in its initial position can be supported on the switching armature. This embodiment has the advantage that it can be realized structurally in a simple manner. The restoring force of the shift armature return spring must be designed in this case so that it is greater in the non-functional position than the Hubankerrückstellfeder in its non-functional position.

Die Hubankerrückstellfeder kann auch auf der dem Schaltanker abgewandten Seite am Gehäuse des Starterrelais oder einem mit dem Gehäuse verbundenen Bauteil abgestützt sein. Hierdurch ist sichergestellt, dass das Schaltglied der Einschalteinrichtung nicht von der Hubankerrückstellfeder beaufschlagt wird und die Kräfte auf das Schaltglied unabhängig von der Hubankerbewegung sind.The Hubankerrückstellfeder can also be supported on the side facing away from the switching armature on the housing of the starter relay or a component connected to the housing. This ensures that the switching element of the Einschalteinrichtung is not acted upon by the Hubankerrückstellfeder and the forces on the switching element are independent of the Hubankerbewegung.

Bei einer Ausführung des Schaltglieds als Schaltanker kann dieser in Form einer Hülse ausgebildet sein, die ein Abstützteil für die Hubankerrückstellfeder aufnimmt, wobei das Abstützteil am Gehäuse bzw. einem Schalterdeckel der Einschalteinrichtung, der fest mit dem Gehäuse verbunden ist, abgestützt ist. Das Abstützteil ist gehäusefest angeordnet und nimmt nicht an einer Bewegung des Hubankers bzw. des Schaltglieds teil. Das Abstützteil nimmt die Hubankerrückstellfeder auf der dem Hubanker abgewandten Seite auf.In one embodiment of the switching element as a switching armature this may be in the form of a sleeve which receives a support member for the Hubankerrückstellfeder, wherein the support member on the housing or a switch cover of the Einschalteinrichtung which is fixedly connected to the housing, is supported. The support member is fixed to the housing and does not participate in a movement of the lifting armature or the switching member. The support member receives the Hubankerrückstellfeder on the side facing away from the lifting armature.

Die Einzugswicklung und die Schaltwicklung sind zweckmäßigerweise axial hintereinanderliegend im Gehäuse des Starterrelais angeordnet. Um das Magnetfeld von Einzugswicklung und Schaltwicklung zu separieren, sind die beiden Wicklungen vorteilhafterweise axial auf Abstand zueinander angeordnet, wobei es zweckmäßig sein kann, dass in die Lücke zwischen Einzugswicklung und Schaltwicklung ein Trennsteg einragt, welcher vorteilhafterweise aus einem magnetisch leitenden Material besteht. Möglich ist es auch, dass der Trennsteg einteilig mit dem Gehäuse ausgebildet ist und von der Gehäuseaußenwand radial nach innen einragt und in Form eines Ringes an der Innenwand des Gehäuses umläuft. Da der Trennsteg den magnetischen Fluss leitet, können die Magnetkreise der Wicklungen voneinander getrennt werden.The pull-in winding and the switching winding are expediently arranged axially one behind the other in the housing of the starter relay. In order to separate the magnetic field of pull-in winding and switching winding, the two windings are advantageously arranged axially spaced from each other, and it may be appropriate that in the gap between pull-in winding and switching winding a divider protrudes, which advantageously consists of a magnetically conductive material. It is also possible that the divider is integrally formed with the housing and protrudes radially inwardly from the housing outer wall and rotates in the form of a ring on the inner wall of the housing. Since the divider directs the magnetic flux, the magnetic circuits of the windings can be separated from each other.

Erfindungsgemäß übergreift die Einrückwicklung den Schaltanker in dessen Ausgangslage axial zumindest teilweise. Dadurch ist es gewährleistet, dass der Schaltanker in der Ausgangslage, also bei nicht-bestromter Schaltwicklung, mit dem Hubanker gemeinsam in einem elektromagnetischen Kreis liegt.According to the invention, the engagement winding overlaps the switching armature in its initial position axially at least partially. This ensures that the switching armature in the starting position, that is to say in the case of a non-energized switching winding, together with the lifting armature lies in an electromagnetic circuit.

Weitere Vorteile und zweckmäßige Ausführungen sind den weiteren Ansprüchen, der Figurenbeschreibung und den Zeichnungen zu entnehmen. Es zeigen:

Fig. 1
eine Startvorrichtung für eine Brennkraftmaschine mit einem Starterritzel, das axial über ein Starterrelais verstellbar und über einen elektrischen Startermotor drehend anzutreiben ist, wobei der elektrische Startermotor über eine Einschalteinrichtung im Starterrelais eingeschaltet wird,
Fig. 2
einen Schnitt durch ein Starterrelais mit integrierter Einschalteinrichtung,
Fig. 3
einen Schnitt durch das Starterrelais mit der integrierten Einschalteinrichtung in einer weiteren Ausführung.
Further advantages and expedient embodiments can be taken from the further claims, the description of the figures and the drawings. Show it:
Fig. 1
a starting device for an internal combustion engine with a starter pinion, which is axially adjustable via a starter relay and driven in rotation via an electric starter motor, wherein the electric starter motor is turned on via a switch-on in the starter relay,
Fig. 2
a section through a starter relay with integrated Einschaltalteinrichtung,
Fig. 3
a section through the starter relay with the integrated Einschalteinrichtung in another embodiment.

In den Figuren sind gleiche Bauteile mit gleichen Bezugszeichen versehen.In the figures, the same components are provided with the same reference numerals.

Die in Fig. 1 dargestellte Startvorrichtung 1 für eine Brennkraftmaschine weist ein Starterritzel 2 auf, das zum Starten der Brennkraftmaschine 4 in Eingriff mit einem Zahnkranz 3 der Brennkraftmaschine gebracht wird. Das Starterritzel 2 ist auf einer Welle 5 wie mit dem Doppelpfeil gekennzeichnet axial verschieblich gelagert, wobei das Starterritzel 2 drehfest mit der Welle 5 gekoppelt ist. Das Starterritzel 2 wird zwischen einer zurückgezogenen Außerfunktionsposition und einer vorgerückten Eingriffsposition mit dem Zahnkranz 3 der Brennkraftmaschine 4 über ein Starterrelais 6 verstellt, das elektromagnetisch ausgebildet ist und zwei bestrombare Relaiswicklungen 7, 15 sowie einen Hubanker 8 umfasst, der bei Bestromung der ersten Relaiswicklungen 7, die die Funktion einer Einzugswicklung hat, in diese axial hineingezogen wird. Der Hubanker 8 betätigt einen Einrückhebel 9, der eine Einspurfeder 13 beaufschlagt, die auf einem Mitnehmer 14 eines Rollenfreilaufs aufsitzt. Das Starterritzel 2 ist abtriebsseitig mit dem Mitnehmer 14 gekoppelt, so dass die axiale Vorschubbewegung des Mitnehmers 14 in die gewünschte axiale Stellbewegung des Starterritzels 2 zwischen der Außerfunktionsposition und der Eingriffsposition umgesetzt wird.In the Fig. 1 illustrated starting device 1 for an internal combustion engine has a starter pinion 2, which is brought to start the internal combustion engine 4 in engagement with a ring gear 3 of the internal combustion engine. The starter pinion 2 is mounted axially displaceably on a shaft 5 as indicated by the double arrow, wherein the starter pinion 2 is non-rotatably coupled to the shaft 5. The starter pinion 2 is adjusted between a retracted non-functional position and an advanced engagement position with the ring gear 3 of the internal combustion engine 4 via a starter relay 6 which is formed electromagnetically and comprises two energizable relay windings 7, 15 and a lifting armature 8, which when energizing the first relay windings 7, which has the function of a pull-in winding is pulled into this axially. The lifting armature 8 actuates an engaging lever 9, which acts on a Einspurfeder 13, which rests on a driver 14 of a roller freewheel. The starter pinion 2 is coupled on the output side with the driver 14, so that the axial advancing movement of the driver 14 is converted into the desired axial adjusting movement of the starter pinion 2 between the non-functional position and the engaged position.

Die drehende Antriebsbewegung auf die Welle 5 bzw. das Starterritzel 2 wird mithilfe eines elektrischen Startermotors 11 erzeugt, der über ein Getriebe 12, beispielesweise ein Planetengetriebe mit der Welle 5 gekoppelt ist. Bei einer Betätigung des elektrischen Startermotors 11 wird die Welle 5 und damit auch das Starterritzel 2 in Drehung versetzt.The rotating drive movement on the shaft 5 or the starter pinion 2 is generated by means of an electric starter motor 11, which is coupled via a gear 12, for example a planetary gear with the shaft 5. Upon actuation of the electric starter motor 11, the shaft 5 and thus the starter pinion 2 is rotated.

Das Einschalten des Startermotors 11 erfolgt über eine Einschalteinrichtung 16, die in das Starterrelais 6 integriert ist. Der Stromkreis wird in der Einschalteinrichtung 16 mittels eines Schaltglieds geschlossen, das als Schaltanker ausgeführt ist und bei Bestromung der zweiten Relaiswicklung 15 verstellt wird, welche die Funktion einer Schaltwicklung hat. Bei geschlossenem Stromkreis wird der Startermotor 11 in Bewegung gesetzt und die Welle 5 sowie das Starterritzel 2 drehend angetrieben.The starter motor 11 is switched on via a switch-on device 16, which is integrated in the starter relay 6. The circuit is closed in the Einschalteinrichtung 16 by means of a switching element, which is designed as a switching armature and is adjusted when energizing the second relay winding 15, which has the function of a switching winding. When the circuit is closed, the starter motor 11 is set in motion and the shaft 5 and the starter pinion 2 driven in rotation.

Der Startvorrichtung 1 ist ein Regel- bzw. Steuergerät 10 zugeordnet, über das die Funktionen des Starterrelais 6 sowie des Startermotors 11 gesteuert werden. Es ist insbesondere möglich, die Bestromung der Einzugswicklung 7 und der Schaltwicklung 15 unabhängig voneinander durchzuführen.The starting device 1 is associated with a control or control device 10, via which the functions of the starter relay 6 and the starter motor 11 are controlled. It is particularly possible to carry out the energization of the pull-in winding 7 and the switching winding 15 independently of each other.

In Fig. 2 ist ein Starterrelais 6 im Längsschnitt dargestellt. Das Starterrelais 6 weist zwei Relaiswicklungen 7, 15 auf, die im Gehäuse 18 des Starterrelais axial hintereinander liegend angeordnet sind, wobei zwischen den Relaiswicklungen 7, 15 ein Luftspalt 30 liegt. Die erste Relaiswicklung 7 dient als Einzugswicklung zum axialen Verstellen des Hubankers 8, welcher die Stellbewegung des Starterritzels bewirkt. Die zweite Relaiswicklung 15 ist der Einschalteinrichtung 16 zum Starten des elektrischen Startermotors zugeordnet und verstellt bei Bestromung den Schaltanker 23, der vorteilhafterweise von einer Schaltankerrückstellfeder in seine Ausgangsposition kraftbeaufschlagt ist. Bei Bestromung der Schaltwicklung 15 wird der Schaltanker 23 gegen die Kraft der Schaltankerrückstellfeder bewegt, wodurch der Stromkreis geschlossen wird.In Fig. 2 a starter relay 6 is shown in longitudinal section. The starter relay 6 has two relay windings 7, 15, which are arranged axially one behind the other in the housing 18 of the starter relay, wherein between the relay windings 7, 15, an air gap 30 is located. The first relay winding 7 serves as a pull-in winding for the axial adjustment of the lifting armature 8, which causes the adjusting movement of the starter pinion. The second relay winding 15 is assigned to the Einschalteinrichtung 16 for starting the electric starter motor and adjusts when energized the switching armature 23, which is preferably subjected to a force of a shift armature return spring to its original position. When current is applied to the switching winding 15, the switching armature 23 is moved against the force of the switching armature return spring, whereby the circuit is closed.

Die Hubankerrückstellfeder 20, die den Hubanker 8 in dessen Ausgangsposition kraftbeaufschlagt, stützt sich an der Stirnfläche des Schaltankers 23 ab. Der Hubanker 8 bildet mit dem Schaltanker 23 und einem Teil des Gehäuses 18 einen elektromagnetischen Kreis.The Hubankerrückstellfeder 20, the force applied to the lifting armature 8 in its initial position, is supported on the end face of the switching armature 23 from. The lifting armature 8 forms with the switching armature 23 and a part of the housing 18 an electromagnetic circuit.

Wie der Schnittdarstellung gemäß Fig. 3 durch das Starterrelais 6 zu entnehmen, ist der Hubanker 8 Träger eines Stößels 17, an dessen freiem Ende der Einrückhebel 9 (Fig. 1) angreift. Der Hubanker 8 ist axial im Gehäuse 18 des Starterrelais 6 verstellbar gehalten und wird bei Bestromung der Einzugswicklung 7 in das Gehäuse in Richtung auf einen Magnetkern 19 hineingezogen. Der Hubanker 8 wird axial von einer Hubankerrückstellfeder 20 in Richtung seiner Ausgangsposition kraftbeaufschlagt. Die Hubankerrückstellfeder 20 stützt sich auf der Seite eines Schaltankers 23 an einem Abstützteil 21 ab, welches gehäusefest gehalten und insbesondere an einem Schalterdeckel 29 der Einschalteinrichtung 16 abgestützt ist.As the sectional view according to Fig. 3 can be seen by the starter relay 6, the lifting armature 8 carrier of a plunger 17, at the free end of the engaging lever 9 (FIG. Fig. 1 ) attacks. The lifting armature 8 is held axially displaceable in the housing 18 of the starter relay 6 and is drawn into the housing in the direction of a magnetic core 19 when the feed winding 7 is energized. The lifting armature 8 is urged axially by a lifting armature return spring 20 in the direction of its starting position. The Hubankerrückstellfeder 20 is supported on the side of a switching armature 23 on a support member 21, which is held fixed to the housing and in particular on a switch cover 29 of the Einschalteinrichtung 16 is supported.

Die Einzugswicklung 7 und die Schaltwicklung 15 sind axial hintereinanderliegend an der Innenwand des Gehäuses 18 angeordnet und von einem Trennsteg 22 separiert, der in die axiale Lücke zwischen den Wicklungen 7, 15 einragt. Der Trennsteg 22 besteht vorzugsweise aus einem magnetisch leitenden Material und ist als ein an der Innenwand des Gehäuses 18 umlaufender Ring ausgebildet. Die Schaltwicklung 15 wird im Ausgangszustand axial teilweise von der Einzugswicklung 7 übergriffen.The pull-in winding 7 and the switching winding 15 are arranged axially one behind the other on the inner wall of the housing 18 and separated by a separating web 22 which protrudes into the axial gap between the windings 7, 15. The divider 22 is preferably made of a magnetically conductive material and is formed as a ring encircling the inner wall of the housing 18. The switching winding 15 is partially overlapped axially in the initial state of the pull-in winding 7.

Die Einschalteinrichtung 16 zum Ein- bzw. Ausschalten des elektrischen Startermotors ist in das Starterrelais 6 integriert bzw. am Starterrelais 6 angeordnet und mit dem Gehäuse 18 fest verbunden. Die Einschalteinrichtung 16 weist einen Schaltanker 23 auf, der bei Bestromung der zugeordneten Schaltwicklung 15 aus der Ausgangsposition axial in Richtung auf den Magnetkern 19 verstellt wird, welcher axial benachbart zur Einschalteinrichtung 16 im Gehäuse 18 angeordnet ist. Fest mit dem Schaltanker 23 ist eine Schalthülse 24 verbunden, die ebenso wie der Schaltanker 23 koaxial zum Hubanker 8 gelagert und entlang der Längsachse des Starterrelais 6 verstellbar ist. Die Schalthülse 24 nimmt das stiftförmige Abstützteil 21 auf, an dem sich die Hubankerrückstellfeder 20 abstützt, wobei das Abstützteil 21 gehäusefest gehalten ist und die Schalthülse 24 bei Bestromung der Schaltwicklung 15 axial gegen die Kraft einer Schaltankerrückstellfeder 25 verstellt werden kann. Bei einer Verstellbewegung des Schaltankers 23 bei Bestromung der Schaltwicklung 15 gelangt eine Kontaktbrücke 26, die fest mit der Schalthülse 24 verbunden ist, in elektrischen Kontakt mit zwei Gegenkontakten 27, 28, die im Stromkreis des elektrischen Startermotors liegen, wodurch der Stromkreis geschlossen und der elektrische Startermotor gestartet wird.The turn-on device 16 for switching on and off of the electric starter motor is integrated into the starter relay 6 or arranged on the starter relay 6 and fixedly connected to the housing 18. The switching-on device 16 has a switching armature 23, which is displaced axially when the associated switching winding 15 is energized from the starting position in the direction of the magnetic core 19, which is arranged axially adjacent to the closing device 16 in the housing 18. Firmly connected to the switching armature 23 is a switching sleeve 24 which, like the switching armature 23, is mounted coaxially with the lifting armature 8 and is adjustable along the longitudinal axis of the starter relay 6. The shift sleeve 24 receives the pin-shaped support member 21, on which the Hubankerrückstellfeder 20 is supported, wherein the support member 21 is held fixed to the housing and the switching sleeve 24 can be adjusted axially when energizing the switching coil 15 against the force of a switching armature return spring 25. During an adjustment movement of the switching armature 23 when current is applied to the switching winding 15, a contact bridge 26, which is firmly connected to the switching sleeve 24, comes into electrical contact with two mating contacts 27, 28, which are in the circuit of the electric starter motor, whereby the circuit is closed and the electrical Starter motor is started.

Die Bestromung der Einzugswicklung 7 und der Schaltwicklung 15 erfolgt grundsätzlich unabhängig voneinander. Dies ermöglicht verschiedene Verfahrensweisen, die je nach aktuellem Betriebszustand durchgeführt werden. Möglich sind insbesondere Einspurvorgänge in einen sich noch drehenden Zahnkranz der Brennkraftmaschine, beispielsweise bei einem Neustart kurz nach dem Abschalten der Brennkraftmaschine, wenn das Starterritzel in den auslaufenden Zahnkranz eingespurt werden muss.The energization of the pull-in winding 7 and the switching winding 15 is basically independent of each other. This allows various procedures to be performed depending on the current operating state. In particular, one-track operations are possible in a still rotating ring gear of the internal combustion engine, for example, at a restart shortly after switching off the internal combustion engine when the starter pinion must be meshed in the expiring sprocket.

Claims (12)

  1. Electromagnetic starter relay for a starting device for an internal combustion engine, having a lift armature (8) and an energisable pull-in winding (7) and having a switch-on device (16) for switching on an electric starter motor (11), the starter relay (6) having an energisable switching winding (15) as an additional winding, which acts on an axially adjustable switching armature (23) of the switching device (16), characterized in that the switching armature (23) forms a core plate for the lifting armature (8) and the lifting armature (8) and the switching armature (23) lie in a common magnetic circuit, wherein the switching armature (23) in its initial position is axially at least partially overlapped by the pull-in winding (7).
  2. Starter relay according to claim 1, characterised in that the lifting armature (8) is acted upon by a lifting armature return spring (20) into its initial position and the lifting armature return spring (20) is supported on the switching armature (23).
  3. Starter relay according to claim 1, characterized in that the lifting armature return spring (20) is supported on its side remote from the lifting armature (8) on the housing (18) of the starter relay (6) or on a component connected to the housing (18).
  4. Starter relay according to claim 3, characterized in that the switching armature (23) is sleeve-shaped and accommodates a support part (21) for a lifting armature return spring (20).
  5. Starter relay according to claim 4, characterized in that the support part (21) is supported on the side remote from the lifting armature (8) on a switch cover (29) of the switching device (16).
  6. Starter relay according to any one of claims 1 to 5, characterized in that the pull-in winding (7) and the switching winding (15) are arranged axially one behind the other in the housing (18) of the starter relay (6).
  7. Starter relay according to claim 6, characterized in that a separating web (22) is arranged between the pull-in winding (7) and the switching winding (15).
  8. Starter relay according to claim 7, characterized in that the separating web (22) is made of magnetically conductive material.
  9. Starter relay according to any one of claims 1 to 8, characterized in that the pull-in winding (7) and the switching winding (15) can be energised independently of one another.
  10. Starter relay according to any one of claims 1 to 9, characterized in that the switching armature (23) is force-loaded by a switching armature return spring (25) into the initial position in which the switching device (16) is switched off.
  11. Starting device for an internal combustion engine with a starter relay (6) according to any one of claims 1 to 10.
  12. Method for actuating a starting device for an internal combustion engine according to claim 11, in which, in the case of a tracking-in process into the sprocket wheel (3) of the internal combustion engine (4), the rotational speed of the sprocket wheel is below a threshold value, first only the pull-in winding (7) is energised and, after the tracking-in, both the pull-in winding (7) and the switching winding (15) are energised, and, in the event that the speed of the sprocket wheel exceeds a threshold value, the switching winding (15) is already energised before the starter pinion makes contact with the sprocket wheel of the internal combustion engine.
EP13168772.5A 2012-06-21 2013-05-22 Starter relay for a starting device Active EP2677161B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012210517A DE102012210517A1 (en) 2012-06-21 2012-06-21 Starter relay for a starter

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EP2677161A2 EP2677161A2 (en) 2013-12-25
EP2677161A3 EP2677161A3 (en) 2017-12-06
EP2677161B1 true EP2677161B1 (en) 2019-10-30

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EP13168772.5A Active EP2677161B1 (en) 2012-06-21 2013-05-22 Starter relay for a starting device

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US (1) US9082574B2 (en)
EP (1) EP2677161B1 (en)
CN (1) CN103511152B (en)
DE (1) DE102012210517A1 (en)
HU (1) HUE046720T2 (en)

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EP3617494A1 (en) * 2018-08-28 2020-03-04 Mahle International GmbH Electromagnetic switch for a starting device
CN112930438B (en) * 2018-11-09 2023-01-03 三菱电机株式会社 Electromagnetic switch device

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Also Published As

Publication number Publication date
HUE046720T2 (en) 2020-03-30
US20130342291A1 (en) 2013-12-26
CN103511152A (en) 2014-01-15
EP2677161A3 (en) 2017-12-06
DE102012210517A1 (en) 2013-12-24
US9082574B2 (en) 2015-07-14
EP2677161A2 (en) 2013-12-25
CN103511152B (en) 2016-01-20

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