EP2807378B1 - Radiator fan of a motor vehicle - Google Patents

Radiator fan of a motor vehicle Download PDF

Info

Publication number
EP2807378B1
EP2807378B1 EP13708079.2A EP13708079A EP2807378B1 EP 2807378 B1 EP2807378 B1 EP 2807378B1 EP 13708079 A EP13708079 A EP 13708079A EP 2807378 B1 EP2807378 B1 EP 2807378B1
Authority
EP
European Patent Office
Prior art keywords
rotor
fan
radiator fan
hub
dome
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.)
Active
Application number
EP13708079.2A
Other languages
German (de)
French (fr)
Other versions
EP2807378A2 (en
Inventor
Thomas Ziegler
Thomas Hussy
Artur Schmidt
Thomas Schencke
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.)
Brose Fahrzeugteile SE and Co KG
Original Assignee
Brose Fahrzeugteile SE and Co KG
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 Brose Fahrzeugteile SE and Co KG filed Critical Brose Fahrzeugteile SE and Co KG
Publication of EP2807378A2 publication Critical patent/EP2807378A2/en
Application granted granted Critical
Publication of EP2807378B1 publication Critical patent/EP2807378B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/002—Axial flow fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F04D29/329—Details of the hub
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/384—Blades characterised by form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
    • F04D29/646—Mounting or removal of fans

Definitions

  • the invention relates to a radiator fan of a motor vehicle, in particular main fan, with a fan wheel having a hub and with an electromotive rotor connected thereto.
  • a liquid coolant is usually used, which in turn must be cooled. This is usually done by means of an acted upon by a wind radiator network, which is in heat exchange with the coolant.
  • the coolant is directed into tubes that are incorporated into the radiator network. Since, especially at low vehicle speeds, the airstream for cooling is usually not sufficient, it is for example from the EP 1 621 773 A1 known to use an electric fan, by means of which the wind is amplified.
  • the fan is arranged in the direction of travel behind the radiator network. With the help of a fan of the fan, the air is sucked through the radiator network and passed to the engine. If, in addition to the radiator network, a condenser network of a condenser of an air conditioning system is present, the condenser network is usually arranged upstream of the radiator network in the direction of travel.
  • the fan is connected by means of a central rotor shaft coupling with a rotor shaft of the electric motor or its rotor (rotor).
  • Other conventional types of mounting the fan on the rotor have screws. These are screwed or screwed by the side facing away from the electric motor side of the fan through this into the rotor. Usually, three such screws are used.
  • the fan with the To press rotor shaft or to fix one another by means of a bayonet connection.
  • the fan includes radial fan blades attached to a hub.
  • the hub is attached by snap hooks to a rotor of the engine.
  • the fan wheel includes a hub connected to a rotor of an engine.
  • DE 10 2009 003 142 A1 discloses a fan-rotor connection for a cooling fan of a motor vehicle.
  • a number of tabs are bent to fix the rotor.
  • Out JP-U-354162910 is disclosed a connection of a hub with a rotor by means of a dome, wherein the dome is widened.
  • the invention has for its object to provide an improved radiator fan of a motor vehicle, which in particular has a comparatively low weight, and which is preferably mounted even at high manufacturing tolerances while retaining the functionally relevant dimensions.
  • the radiator fan is part of a motor vehicle and is used in particular for cooling an internal combustion engine.
  • wind is passed through a radiator network, wherein the wind is amplified by means of the radiator fan or generated at a standstill of the vehicle.
  • the radiator fan comprises a fan with a number of fan blades.
  • the fan blades are connected to a central hub.
  • the connection can be made by means of additional elements, such as screws, or material.
  • the fan is made of a plastic and is manufactured in one piece in an injection molding process.
  • the fan wheel is rotated by means of an electric motor.
  • the fan is connected to a rotor of the motor.
  • the electric motor is a brushless inner rotor and thus the rotor is arranged within a stator of the electric motor.
  • connection is made by means of at least one connecting dome, which is integrally formed on the rotor.
  • a connecting dome which is integrally formed on the rotor.
  • the free end is heated and plastically, in particular by caulking, deformed.
  • the deformation or caulking is rivet-shaped.
  • the free end of the Vietnamesesdoms is disseminated, so that a particularly reliable, weight-saving and easy to install fan-rotor connection provided by Stemmdomen or nubs.
  • the broadening here is comparatively large, at least greater than the diameter of the corresponding recess, so that the fan can not be removed from this without damaging the Mattsdoms or other parts of the rotor.
  • the rotor has a number of such connection dome and the hub the same number of corresponding recesses.
  • the number of recesses and the connecting dome is four in each case.
  • connection or the dome running parallel to the rotor axis of the electric motor which is also referred to below as the axis of rotation.
  • the connection or the dome running parallel to the rotor axis of the electric motor, which is also referred to below as the axis of rotation.
  • the electric motor can be operated in both directions, wherein both times the fan is securely connected to the rotor and is not solved by a rotational movement.
  • a parallel course of the connection dome of the frictional connection between the fan and the rotor is relatively stable.
  • the adhesion is created in particular mainly by means of the rivet-shaped head of the connecting dome and other components of the rotor, which are located on the opposite side of the rivet head of the fan.
  • the fan is thus substantially clamp-fixed between the rivet head and the component.
  • the transmission of the clamping forces is comparatively high and material-friendly in such a connection dome.
  • one or in particular a plurality of stabilizing ribs is integrally formed on the connecting dome on the rotor side.
  • the stabilizing ribs are in the region of the transition of the connecting dome to the rotor.
  • a stabilizing rib is suitably plate-shaped and arranged parallel to the course of the connecting dome.
  • the connecting dome surround a number of stabilizing ribs in a star shape. The number of stabilizing ribs is at least two and preferably six.
  • the stabilizing ribs of the connecting dome is stabilized so that it does not break off at the load, which occurs for example during operation of the fan or during assembly of the fan, in the region of the transition between the rotor and the connecting dome of the rotor or bent over there.
  • the stabilizing rib also forms a defined support point of the fan wheel, so that comparatively large tolerances for the position and size of the recesses of the hub can be selected, in particular when using multipleilorsdomen, yet safe mounting is possible.
  • the stabilizing rib represents a defined support point of the fan wheel, which is why the clamping fixation of the fan between the rivet head of the connecting dome and the bearing surface of the fan on the stabilizing rib is comparatively safe and stable. The force acting on the fan clamping force is thus advantageously increased.
  • the rotor comprises two and in particular four connecting dome.
  • the connection domes are arranged radially equidistant from the rotor axis.
  • the rotor preferably comprises a centering ring on its surface.
  • the center of the, in particular circular, centering is in this case essentially on the rotor axis, and the centering ring is introduced on the front side or front of the rotor in the surface, wherein the contour of the centering ring is curved outwardly, ie in the direction of the fan wheel.
  • the centering ring is cylindrical and in particular hollow cylindrical constructed.
  • the centering ring engages in a centering opening of the hub, which also has a hollow cylindrical shape.
  • the center of the centering hole and the centering ring is in the mounted state on the axis of rotation. In other words, the centering opening and the centering ring are arranged concentrically.
  • the inside of the centering surrounds the outer shell side of the centering ring.
  • the centering ring surrounds the rotation opening.
  • the centering opening can also be designed in the manner of a cylinder or a truncated cone, wherein the height of the cylinder or stump is relatively small.
  • the centering opening and the centering ring are positively against each other.
  • the centering opening is cup-shaped.
  • the centering hole has a bottom.
  • the hub is not open on the side facing away from the rotor in the region of the centering opening, which is why an air flow can flow comparatively unhindered past the hub, without causing comparatively many turbulences, which lead to increased noise nuisance.
  • the fan is relatively accurately positioned. In the manufacture of the rotor and the fan thus comparatively large manufacturing tolerances can thus be selected in the region of these two connecting elements, yet the desired axis of rotation of the fan coincides with the axis of rotation of the rotor.
  • the rotor comprises a driving rib and in particular a number of driving ribs.
  • the driving rib or the driving ribs engage in a slot of the hub which corresponds to this or this one.
  • the driving rib is positively and / or non-positively arranged in the slot.
  • the driving rib is arranged comparatively far away from the axis of rotation and is located in particular on the end face of the rotor.
  • the life of the connecting dome (s) is advantageously increased.
  • the entrainment rib or each driving rib extends radially. In this way, the power transmission is comparatively large, wherein the rotor can be safely operated in both directions of rotational movement, without causing a slip between the rotor and fan.
  • the driving rib or the driving ribs is integrally formed on the centering ring.
  • the centering ring and the driving ribs are made in one piece. This leads both to a comparatively inexpensive production as well as a comparatively high stability of both the centering ring and the driving ribs, which support each other.
  • the slots are introduced into a boundary contour of the centering opening.
  • the slots are in the lateral surface of the hollow cylindrical centering, so that it is at least partially formed of a number of hollow cylinder segments. In this way, the number and weight of a connection of the fan to the rotor serving elements of the fan are relatively low, which is why this has a relatively low inertia.
  • the connecting dome is integral with an electrically insulating plastic encapsulation of a rotor core of the rotor.
  • the connection dome is produced in one step of manufacturing the rotor, which also serves to protect against an electrical short circuit of individual components of the rotor.
  • the individual components are, for example, field windings of a coil by means of which a magnetic field is generated or else individual rotor laminations, which are insulated from one another and essentially form the rotor pack, in order to avoid the formation of turbulent flows. In this way, eliminates a separate production of the dacasdoms and its subsequent attachment to the already isolated rotor package, resulting in a cost and time savings.
  • the centering ring and / or in particular the driving rib in the same manner in one piece with the plastic extrusion.
  • the hub of the fan wheel forms a cover of the rotor.
  • the rotor is open on the side facing the fan wheel and is damaged by the hub from damage or contamination protected.
  • a weight reduction of the electric motor is possible, which is why its inertia is reduced.
  • the electric motor and the radiator fan respond to a changed control relatively quickly, yet still comparatively small forces are used.
  • the connecting dome is constructed as a hollow cylinder.
  • the connecting dome has a, in particular straight, cylindrical shape, wherein, for example, the base surface is round.
  • the cylinder axis is parallel to the axis of rotation of the rotor.
  • the connection dome is tubular shaped as a hollow cylinder.
  • the connection dome has a base area that deviates from a circular shape.
  • the corresponding recess of the hub is expediently shaped in accordance with the base area.
  • a depression is introduced into the hub, within which the corresponding recess is located.
  • the recess is offset in the direction of the rotor.
  • the rivet head of the connection dome substantially completely expands the depression substantially.
  • a comparatively large area is provided for transmitting the force of the connection of the ventilation wheel to the rotor serving frictional connection.
  • the side facing away from the rotor of the hub is relatively flat, which improves the aerodynamic properties of the radiator fan.
  • the recess is conical or hemispherical round, wherein the diameter of the recess decreases with increasing proximity to the rotor and the corresponding recess.
  • Fig. 1 is in perspective a cylindrical rotor 2 of a schematically in Fig. 6 shown radiator fan 4 of a motor vehicle.
  • the radiator fan 4 serves to cool an internal combustion engine of the motor vehicle. For this purpose, wind is sucked or blown through a radiator network through which a cooling liquid is passed. The cooling liquid in turn serves to cool the internal combustion engine. Further, by means of the radiator fan 4, an air flow is provided which is directed to the internal combustion engine and thus directly cools it.
  • the rotor 2 has a rotor core 6, which consists essentially of a number of axially stacked and mutually insulated, circular rotor plates 8, which are parallel to each other and held together by means of fastening means.
  • the individual rotor laminations 8 are either premagnetized in a specific direction, or within the rotor laminations 8, a magnetic field is induced by means of a stator, not shown here, of the electric motor during operation of the radiator fan 4.
  • the rotor lamination package 6 is surrounded by a plastic extrusion coating 10, which electrically insulates the rotor lamination package 6 against further components of the electric motor. Furthermore, the plastic extrusion 10 stabilizes the rotor core 6 and additionally holds the individual rotor laminations 8 together. Furthermore is compensated by the plastic extrusion 10 any imbalance of the rotor core 6, so that the rotor within the stator has a relatively quiet running during operation.
  • the shape of the connecting dome 12 is hollow cylindrical, wherein the respective cylinder axis extends parallel to the rotor axis 14.
  • six stabilizing ribs 16 are integrally formed on the rotor side, which surround the corresponding connecting dome 12 in a star shape. In other words, the stabilizing ribs 16 are in the region of the connecting dome 12 that is closest to the rotor pack 6.
  • Each stabilizing rib 16 is platelet-shaped, with the main propagation direction parallel to the rotor axis 14.
  • the cross-section of the connecting dome - stabilizing rib composite is rotationally symmetrical to an axis parallel to the rotor axis 14 through the center of the respective connecting dome 12.
  • the connecting dome 12 are arranged on a base of the cylindrical rotor 2, which forms the end face. In this case, the connection dome 12 are in a relatively large distance from the rotor axis 14, which is greater than two-thirds of the radius of the rotor 2. The distance between the individual connection dome 12 to the rotation axis 14 is equal.
  • the connecting dome 12 are arranged such that each two adjacent kaue 12 with the rotation axis 14 include a right triangle. Thus, the connection domes 12 are distributed rotationally symmetrically on the end face of the rotor 2.
  • a centering ring 18 is formed, the center of which is located on the axis of rotation 14.
  • the centering ring 18 is hollow cylindrical and extends parallel to the axis of rotation 14 of the rotor package 6 away.
  • a number of driving ribs 20 is arranged, which surround the centering ring in a star shape. In other words, the trapezoidal and plate-shaped driving ribs run 20 radially. The extent of each of the driving ribs 20 is in this case in the direction of rotation 14 is less than that of the centering ring 18.
  • each driving rib 20 each connecting dome 12 and the respective stabilizing ribs 16 are integral with the insulating plastic encapsulation 10. They are all produced in one process step, namely, when the rotor package 6 is overmolded with the later Kunststoffumspritzung 10 forming material mass.
  • Fig. 2 shows a front side 22a of the fan 22 of the radiator fan 4 in an unmounted state. Under front 22a that side of the fan 22 is understood, which is acted upon during operation of the cooling fan 4 with the airstream.
  • the fan 22 has a number of fan blades 24 which are connected to a central hub 26. On the periphery, the fan blades 24 are surrounded by a stabilizing ring 28.
  • the stabilizing ring 28 is used to stabilize the fan blades 24 during operation and avoids a so-called leakage air in a transition region between the fan 22 and a frame of the radiator fan 4, not shown here.
  • the fan 22 is made in one piece from a plastic. In other words, the stabilizing ring 28, all fan blades 24 and the hub 26 are materially connected to each other and made in a single step.
  • FIG. 3 an enlarged section of the front side 22a of the fan wheel 22 is shown.
  • the front side 22a of the fan wheel 22 is relatively smooth and even to avoid turbulence of the airstream during operation.
  • four hemispherical recesses 30 are introduced, which are curved away from the front side 22 a of the fan 22, and of which three in Fig. 3 are shown.
  • a recess 32 is introduced at the bottom of each recess 30, that is at the point of the recess 30, which is farthest from the front side 22a of the fan wheel 22, a recess 32 is introduced.
  • Each recess 32 corresponds to one of the connecting dome 12.
  • the cross section of each recess 32 corresponds to the outer cross section of each connecting dome 12.
  • the recesses 30 and the recess 32 are each arranged in a cross shape to the center of the fan 22.
  • Fig. 4 and 5 is a perspective detail of a back 22 b of the fan 22 is shown, wherein Fig. 5 a section from Fig. 4 shows.
  • the back side 22b hereby designates the side of the fan wheel 22 opposite the front side 22a Fig. 4
  • the hub 26 is pot-shaped and has a rib structure 34 within the hub 26 open to the back 22b for stabilizing the same.
  • a cup-shaped centering opening 36 which is concentric with the hub 26, and which comprises a hollow cylindrical boundary contour 38.
  • the boundary contour 38 comprises a number of slots 40 whose depth is less than the height of the boundary contour 38 and which are introduced from the side of the boundary contour 38 remote from the bottom of the pot.
  • FIG. 6 shows schematically simplified partial cut the mounted radiator fan 4 in a sectional view along the rotor axis 14.
  • each of the connecting dome 12 is guided through one of the recesses 32 of the hub 26 and the fan 22 mounted on the stabilizer wings 16.
  • the central centering ring 18 of the rotor 2 engages in the centering opening 36 of the fan wheel 22. In this way, the fan 22 is positioned relatively accurately, since the centering ring 18 abuts circumferentially on the inside of the boundary contour 38.
  • Each of the driving ribs 20 of the rotor is arranged in a form-fitting manner in each case one of the corresponding slots 40 of the fan wheel 22.
  • the fan wheel 22 is thus positioned by means of the centering opening 36 and the centering ring 18, which is why between the connecting dome 12 and the respective corresponding recess 32 relatively large manufacturing tolerances can be selected.
  • each of the connecting dome 12 is heated and caulked on the free end 42 and thereby deformed into a rivet head 44, which fills the respective recess 30.
  • the fan wheel 22 is fixed non-positively on the rotor 2, wherein the front side 22a with the respective rivet heads 44 form a plane. That way, one becomes Turbulence avoided an air flow, with which the radiator fan 4 front 22a is applied during operation.
  • the hub 26 forms an end cover 26 of the rotor 2 and thus protects it from damage, which could be caused in particular by the objects contained in the air flow.
  • the transmission of the rotational movement of the rotor 2 on the fan is done to a relatively large extent by means of the arranged in the slots 40 driving ribs 22. In this way, the connection dome 12 during operation comparatively low load and the adhesion is relatively safe.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Motor Or Generator Cooling System (AREA)

Description

Die Erfindung betrifft einen Kühlerlüfter eines Kraftfahrzeugs, insbesondere Hauptlüfter, mit einem eine Nabe aufweisenden Lüfterrad und mit einem daran angebundenen elektromotorischen Rotor.The invention relates to a radiator fan of a motor vehicle, in particular main fan, with a fan wheel having a hub and with an electromotive rotor connected thereto.

Kraftfahrzeuge mit einem Verbrennungsmotor weisen während des Betriebs eine beträchtliche Wärmeentwicklung auf. Zum Halten der Betriebstemperatur des Verbrennungsmotors und auch für den Betrieb einer Klimaanlage wird üblicherweise ein flüssiges Kühlmittel eingesetzt, welches wiederrum gekühlt werden muss. Dies erfolgt üblicherweise mittels eines von einem Fahrtwind beaufschlagten Kühlernetzes, das im Wärmeaustausch zu dem Kühlmittel steht. Beispielsweise wird das Kühlmittel in Rohre geleitet, die in das Kühlernetz eingearbeitet sind. Da insbesondere bei geringen Fahrzeuggeschwindigkeiten der Fahrtwind zur Kühlung normalerweise nicht ausreicht, ist es beispielsweise aus der EP 1 621 773 A1 bekannt, einen elektrischen Lüfter zu verwenden, mittels dessen der Fahrtwind verstärkt wird.Motor vehicles with an internal combustion engine exhibit considerable heat development during operation. To hold the operating temperature of the internal combustion engine and also for the operation of an air conditioner, a liquid coolant is usually used, which in turn must be cooled. This is usually done by means of an acted upon by a wind radiator network, which is in heat exchange with the coolant. For example, the coolant is directed into tubes that are incorporated into the radiator network. Since, especially at low vehicle speeds, the airstream for cooling is usually not sufficient, it is for example from the EP 1 621 773 A1 known to use an electric fan, by means of which the wind is amplified.

Hierbei wird der Lüfter in Fahrtrichtung hinter dem Kühlernetz angeordnet. Mit Hilfe eines Lüfterrads des Lüfters wird die Luft durch das Kühlernetz hindurch gesaugt und auf den Verbrennungsmotor geleitet. Falls zusätzlich zum Kühlernetz ein Kondensatornetz eines Verflüssigers einer Klimaanlage vorhanden ist, so wird üblicherweise das Kondensatornetz in Fahrtwindrichtung vor dem Kühlernetz angeordnet.Here, the fan is arranged in the direction of travel behind the radiator network. With the help of a fan of the fan, the air is sucked through the radiator network and passed to the engine. If, in addition to the radiator network, a condenser network of a condenser of an air conditioning system is present, the condenser network is usually arranged upstream of the radiator network in the direction of travel.

Das Lüfterrad ist mittels einer zentralen Rotorwellenkupplung mit einer Rotorwelle des Elektromotors bzw. dessen Rotor (Läufer) verbunden. Weitere herkömmliche Befestigungsarten des Lüfterrads an dem Rotor weisen Schrauben auf. Diese werden von der dem Elektromotor abgewandten Seite des Lüfterrads durch dieses hindurch in den Rotor eingedreht bzw. -geschraubt. Üblicherweise werden drei derartige Schrauben verwendet. Ferner ist es bekannt, das Lüfterrad mit der Rotorwelle zu verpressen oder mittels einer Bajonettverbindung aneinander zu fixieren.The fan is connected by means of a central rotor shaft coupling with a rotor shaft of the electric motor or its rotor (rotor). Other conventional types of mounting the fan on the rotor have screws. These are screwed or screwed by the side facing away from the electric motor side of the fan through this into the rotor. Usually, three such screws are used. It is also known, the fan with the To press rotor shaft or to fix one another by means of a bayonet connection.

Aus der EP 0 921 318 A2 ist ein einen Motor aufweisender Lüfter eines Kraftfahrzeugs bekannt. Der Lüfter umfasst radial verlaufende Lüfterflügel, die an einer Nabe angebunden sind. Die Nabe ist mittels Schnapphaken an einem Rotor des Motors befestigt.From the EP 0 921 318 A2 is known an engine exhibiting fan of a motor vehicle. The fan includes radial fan blades attached to a hub. The hub is attached by snap hooks to a rotor of the engine.

Aus der EP 1 174 623 A2 ist ein Lüfter zur Kühlung von Büroausrüstung bekannt. Das Lüfterrad umfasst eine Nabe, die mit einem Rotor eines Motors verbunden ist.From the EP 1 174 623 A2 is a fan for cooling office equipment known. The fan wheel includes a hub connected to a rotor of an engine.

In DE 10 2009 003 142 A1 ist eine Lüfter-Rotor-Verbindung für ein Kühlgebläse eines Kraftfahrzeugs offenbart. Hierbei wird bei einem Ausführungsbeispiel eine Anzahl an Laschen zur Fixierung des Rotors umgebogen.In DE 10 2009 003 142 A1 discloses a fan-rotor connection for a cooling fan of a motor vehicle. Here, in one embodiment, a number of tabs are bent to fix the rotor.

Aus JP-U-354162910 ist eine Verbindung einer Nabe mit einem Rotor mittels eines Doms offenbart, wobei der Dom verbreitert ist.Out JP-U-354162910 is disclosed a connection of a hub with a rotor by means of a dome, wherein the dome is widened.

Der Erfindung liegt die Aufgabe zugrunde, einen verbesserten Kühlerlüfter eines Kraftfahrzeugs anzugeben, der insbesondere ein vergleichsweise geringes Gewicht aufweist, und der bevorzugt auch bei hohen Fertigungstoleranzen unter Einbehaltung der funktionsrelevanten Maße montierbar ist.The invention has for its object to provide an improved radiator fan of a motor vehicle, which in particular has a comparatively low weight, and which is preferably mounted even at high manufacturing tolerances while retaining the functionally relevant dimensions.

Diese Aufgabe wird erfindungsgemäß gelöst durch die Merkmale des Anspruchs 1. Vorteilhafte Weiterbildungen und Ausgestaltungen sind Gegenstand der Unteransprüche.This object is achieved by the features of claim 1. Advantageous developments and refinements are the subject of the dependent claims.

Der Kühlerlüfter ist Bestandteil eines Kraftfahrzeugs und dient insbesondere der Kühlung einer Verbrennungsmaschine. Hierfür wird Fahrtwind durch ein Kühlernetz geleitet, wobei der Fahrtwind mittels des Kühlerlüfters verstärkt oder bei einem Stillstand des Fahrzeugs erzeugt wird. Hierfür umfasst der Kühlerlüfter ein Lüfterrad mit einer Anzahl von Lüfterflügeln. Die Lüfterflügel sind an einer zentralen Nabe angebunden. Die Anbindung kann mittels zusätzlicher Elemente, wie beispielsweise Schrauben, oder stofflich erfolgen. Insbesondere besteht das Lüfterrad aus einem Kunststoff und ist einstückig in einem Spritzgussverfahren hergestellt. Das Lüfterrad wird mittels eines Elektromotors in Drehung versetzt. Hierfür ist das Lüfterrad an einem Rotor des Motors angebunden. Beispielsweise ist der Elektromotor ein bürstenloser Innenläufer und der Rotor somit innerhalb eines Stators des Elektromotors angeordnet.The radiator fan is part of a motor vehicle and is used in particular for cooling an internal combustion engine. For this purpose, wind is passed through a radiator network, wherein the wind is amplified by means of the radiator fan or generated at a standstill of the vehicle. For this purpose, the radiator fan comprises a fan with a number of fan blades. The fan blades are connected to a central hub. The connection can be made by means of additional elements, such as screws, or material. In particular, the fan is made of a plastic and is manufactured in one piece in an injection molding process. The fan wheel is rotated by means of an electric motor. For this purpose, the fan is connected to a rotor of the motor. For example, the electric motor is a brushless inner rotor and thus the rotor is arranged within a stator of the electric motor.

Die Anbindung erfolgt mittels mindestens eines Verbindungsdoms, der an dem Rotor angeformt ist. Bei der Montage des Lüfterrads an dem Rotor wird der Verbindungsdom durch eine zu diesem korrespondierende Aussparung der Nabe des Lüfterrads geführt und das Freiende des Verbindungsdoms verformt. Hierfür wird insbesondere das Freiende erwärmt und plastisch, insbesondere durch Verstemmen, verformt. Die Verformung bzw. Verstemmung ist nietenförmig. Mit anderen Worten wird das Freiende des Verbindungsdoms verbreitet, so dass eine besonders zuverlässige, gewichtsparende und montagefreundliche Lüfterrad-Rotor-Anbindung mittels Stemmdomen oder -noppen bereitgestellt ist. Die Verbreiterung ist hierbei vergleichsweise groß, zumindest größer als der Durchmesser der korrespondierenden Aussparung, so dass das Lüfterrad ohne eine Beschädigung des Verbindungsdoms oder anderer Teile des Rotors nicht mehr von diesem entfernt werden kann.The connection is made by means of at least one connecting dome, which is integrally formed on the rotor. During assembly of the fan wheel to the rotor of the connecting dome is guided by a corresponding recess of the hub of the fan and the free end of the connecting dome deformed. For this purpose, in particular the free end is heated and plastically, in particular by caulking, deformed. The deformation or caulking is rivet-shaped. In other words, the free end of the Verbindungsdoms is disseminated, so that a particularly reliable, weight-saving and easy to install fan-rotor connection provided by Stemmdomen or nubs. The broadening here is comparatively large, at least greater than the diameter of the corresponding recess, so that the fan can not be removed from this without damaging the Verbindungsdoms or other parts of the rotor.

Aufgrund der Verbreiterung des Freiendes wird der Verbindungsdom im Vergleich zum ursprünglichen Zustand verkürzt und das Lüfterrad zwischen dem nietenförmigen Kopf des Verbindungsdoms und dem Rotor form- und/oder kraftschlüssig gehalten. Auf diese Weise ist das Lüfterrad zumindest in axialer Richtung des Elektromotors fixiert und wird während des Betriebs nicht von diesem gelöst. Mittels des Kraftschlusses der Verbindung ist ebenfalls eine Axialbeweglichkeit des Lüfterrads im Bezug auf den Elektromotor unterbunden, weshalb eine unerwünschte Geräuschentwicklung unterbunden ist.Due to the broadening of the free end of the connecting dome is shortened compared to the original state and the fan between the rivet-shaped head of the connecting dome and the rotor held positively and / or non-positively. In this way, the fan is fixed at least in the axial direction of the electric motor and is not released during operation of this. By means of the frictional connection of the connection is also a Axialbeweglichkeit the fan in relation to the electric motor prevented, which is why an undesirable noise is suppressed.

Vorteilhafterweise weist der Rotor eine Anzahl derartiger Verbindungsdome und die Nabe die gleiche Anzahl von korrespondierenden Aussparungen auf. Besonders bevorzugt beträgt die Anzahl der Aussparungen und der Verbindungsdome jeweils vier. Somit ist eine vergleichsweise sichere Anbindung des Lüfterrades an dem Rotor gegeben, wobei die Montagezeit vergleichsweise kurz ist. Darüber hinaus ist das Gewicht der Verbindung vergleichsweise gering und aufgrund der Verwendung von vier Domen eine ausreichende Sicherheitsreserve vorhanden, beispielsweise im Fall eines Bruches eines der Verbindungsdome.Advantageously, the rotor has a number of such connection dome and the hub the same number of corresponding recesses. Particularly preferably, the number of recesses and the connecting dome is four in each case. Thus, a comparatively secure connection of the fan wheel is given to the rotor, the assembly time is relatively short. In addition, the weight of the connection is comparatively low and due to the use of four domes a sufficient safety margin exists, for example in the event of a breakage of one of the Verbindungsdome.

Zweckmäßigerweise verlaufen der oder die Verbindungsdome parallel zur Rotorachse des Elektromotors, die nachfolgend auch als Rotationsachse bezeichnet wird. Somit ist eine vergleichsweise einfache Montage des Lüfterrades ermöglicht, da dieses lediglich auf den Rotor aufgesteckt werden muss. Eine etwaige zeitintensive Positionierung des Motors bzw. des Lüfterrads zueinander entfällt. Es muss lediglich entweder das Lüfterrad oder der Rotor in eine entsprechende Position gedreht werden. Ferner kann der Verbindungsdom, falls dieser vergleichsweise weit von der Rotorachse entfernt positioniert ist, zur Kraftübertragung auf das Lüfterrad verwendet werden. Bei einem Verlauf im Wesentlichen parallel zur Rotorachse sind hierbei der Kraftübertrag und die Belastung des Verbindungsdoms unabhängig von der Drehrichtung des Rotors. Mit anderen Worten kann der Elektromotor in beide Richtungen betrieben werden, wobei beidemal das Lüfterrad sicher mit dem Rotor verbunden ist und durch eine Drehbewegung nicht gelöst wird. Weiterhin ist bei einem parallelen Verlauf des Verbindungsdoms der Kraftschluss zwischen dem Lüfterrad und dem Rotor vergleichsweise stabil. Der Kraftschluss wird insbesondere hauptsächlich mittels des nietenförmigen Kopfes des Verbindungsdoms und weiteren Bestandteilen des Rotors erstellt, welche sich auf der dem Nietenkopf gegenüberliegenden Seite des Lüfterrads befinden. Das Lüfterrad ist somit zwischen dem Nietenkopf und dem Bestandteil im Wesentlichen klemmfixiert. Die Übertragung der Klemmkräfte ist bei einem derartigen Verbindungsdom vergleichsweise hoch und materialschonend.Conveniently, the connection or the dome running parallel to the rotor axis of the electric motor, which is also referred to below as the axis of rotation. Thus, a comparatively simple installation of the fan wheel is possible because this only has to be plugged onto the rotor. Any time-consuming positioning of the motor or the fan to each other is eliminated. It is only necessary to turn either the fan or the rotor into a corresponding position. Furthermore, the connecting dome, if it is positioned comparatively far away from the rotor axis, can be used to transmit power to the fan wheel. In a course substantially parallel to the rotor axis Here, the force transfer and the load of the connection dome are independent of the direction of rotation of the rotor. In other words, the electric motor can be operated in both directions, wherein both times the fan is securely connected to the rotor and is not solved by a rotational movement. Furthermore, in a parallel course of the connection dome of the frictional connection between the fan and the rotor is relatively stable. The adhesion is created in particular mainly by means of the rivet-shaped head of the connecting dome and other components of the rotor, which are located on the opposite side of the rivet head of the fan. The fan is thus substantially clamp-fixed between the rivet head and the component. The transmission of the clamping forces is comparatively high and material-friendly in such a connection dome.

In einer bevorzugten Ausführungsform ist an dem Verbindungsdom rotorseitig eine oder insbesondere mehrere Stabilisierungsrippen angeformt. Zweckmäßigerweise befinden sich die Stabilisierungsrippen im Bereich des Übergangs des Verbindungsdoms zum Rotor. Eine Stabilisierungsrippe ist geeigneterweise plattenförmig und parallel zum Verlauf des Verbindungsdoms angeordnet. Insbesondere umgeben den Verbindungsdom eine Anzahl von Stabilisierungsrippen sternförmig. Die Anzahl der Stabilisierungsrippen beträgt hierbei mindestens zwei und vorzugsweise sechs. Mittels der Stabilisierungsrippen wird der Verbindungsdom stabilisiert, so dass dieser bei einer Belastung, die beispielsweise beim Betrieb des Lüfters oder bei der Montage des Lüfterrads auftritt, im Bereich des Übergangs zwischen dem Rotor und dem Verbindungsdom nicht von dem Rotor abgerissen oder dort umgebogen wird.In a preferred embodiment, one or in particular a plurality of stabilizing ribs is integrally formed on the connecting dome on the rotor side. Conveniently, the stabilizing ribs are in the region of the transition of the connecting dome to the rotor. A stabilizing rib is suitably plate-shaped and arranged parallel to the course of the connecting dome. In particular, the connecting dome surround a number of stabilizing ribs in a star shape. The number of stabilizing ribs is at least two and preferably six. By means of the stabilizing ribs of the connecting dome is stabilized so that it does not break off at the load, which occurs for example during operation of the fan or during assembly of the fan, in the region of the transition between the rotor and the connecting dome of the rotor or bent over there.

Die Stabilisierungsrippe bildet ferner einen definierten Auflagepunkt des Lüfterrads, so dass insbesondere bei einer Verwendung von mehreren Verbindungsdomen vergleichsweise große Toleranzen für die Position und Größe der Aussparungen der Nabe gewählt werden können, wobei dennoch eine sichere Montage ermöglicht ist. Ebenso stellt die Stabilisierungsrippe einen definierten Auflagepunkt des Lüfterrades dar, weswegen die Klemmfixierung des Lüfterrads zwischen dem Nietenkopf des Verbindungsdoms und der Auflagefläche des Lüfterrads auf der Stabilisierungsrippe vergleichsweise sicher und stabil ist. Die auf das Lüfterrad wirkende Klemmkraft ist somit vorteilhaft erhöht.The stabilizing rib also forms a defined support point of the fan wheel, so that comparatively large tolerances for the position and size of the recesses of the hub can be selected, in particular when using multiple Verbindungsdomen, yet safe mounting is possible. Likewise, the stabilizing rib represents a defined support point of the fan wheel, which is why the clamping fixation of the fan between the rivet head of the connecting dome and the bearing surface of the fan on the stabilizing rib is comparatively safe and stable. The force acting on the fan clamping force is thus advantageously increased.

Beispielsweise umfasst der Rotor zwei und insbesondere vier Verbindungsdome. Von den Verbindungsdomen weisen zweckmäßigerweise zwei und insbesondere alle den gleichen Abstand zur Rotationsrotorachse auf. Mit anderen Worten sind die Verbindungsdome radial gleich beabstandet zur Rotorachse angeordnet. Mittels einer derartigen Wahl für den Abstand der Verbindungsdome von der Rotorachse werden Unwuchten des Rotors vermieden, was zu einem vergleichsweise ruhigen Lauf des Elektromotors und somit des Kühlgebläses führt. Insbesondere ist der Abstand der Verbindungsdome zur Rotationsachse vergleichsweise groß und die Verbindungsdome befinden sich vorzugsweise im Bereich des äußeren Drittels des Rotors. Zur weiteren Vermeidung von Unwucht des Rotors ist zweckmäßigerweise die Anordnung der einzelnen Verbindungsdome rotationssymmetrisch bezüglich der Rotationsachse.For example, the rotor comprises two and in particular four connecting dome. Of the Verbindungsdomen expediently two and in particular all the same distance from the rotational rotor axis. In other words, the connection domes are arranged radially equidistant from the rotor axis. By means of such a choice for the distance of the connecting dome from the rotor axis imbalances of the rotor are avoided, resulting in a relatively quiet running of the electric motor and thus the cooling fan. In particular, the distance of the connecting dome to the axis of rotation is comparatively large and the connecting dome are preferably in the region of the outer third of the rotor. To further avoid imbalance of the rotor is expediently the arrangement of the individual connection dome rotationally symmetrical with respect to the axis of rotation.

Bevorzugt umfasst der Rotor an dessen Oberfläche einen Zentrierring. Der Mittelpunkt des, insbesondere kreisrunden, Zentrierrings befindet sich hierbei im Wesentlichen auf der Rotorachse, und der Zentrierring ist auf der Stirnseite oder Frontseite des Rotors in dessen Oberfläche eingebracht, wobei die Kontur des Zentrierrings nach außen gewölbt ist, also in Richtung des Lüfterrades. Der Zentrierring ist hierbei zylindrisch und insbesondere hohlzylindrisch aufgebaut. Der Zentrierring greift in eine Zentrieröffnung der Nabe ein, die ebenfalls eine hohlzylindrische Form aufweist. Vorteilhafterweise befindet sich der Mittelpunkt der Zentrieröffnung und des Zentrierrings im montierten Zustand auf der Rotationsachse. Mit anderen Worten sind die Zentrieröffnung und der Zentrierring konzentrisch angeordnet. Hierbei umgibt die Innenseite der Zentrieröffnung die Mantelaußenseite des Zentrierrings. Ebenso wäre es jedoch auch denkbar, dass der Zentrierring die Rotationsöffnung umgibt. In diesem Fall kann die Zentrieröffnung auch nach Art eines Zylinders oder eines Kegelstumpfes gestaltet sein, wobei die Höhe des Zylinders bzw. Stumpfes vergleichsweise gering ist.The rotor preferably comprises a centering ring on its surface. The center of the, in particular circular, centering is in this case essentially on the rotor axis, and the centering ring is introduced on the front side or front of the rotor in the surface, wherein the contour of the centering ring is curved outwardly, ie in the direction of the fan wheel. The centering ring is cylindrical and in particular hollow cylindrical constructed. The centering ring engages in a centering opening of the hub, which also has a hollow cylindrical shape. Advantageously, the center of the centering hole and the centering ring is in the mounted state on the axis of rotation. In other words, the centering opening and the centering ring are arranged concentrically. Here, the inside of the centering surrounds the outer shell side of the centering ring. Likewise, it would also be conceivable that the centering ring surrounds the rotation opening. In this case, the centering opening can also be designed in the manner of a cylinder or a truncated cone, wherein the height of the cylinder or stump is relatively small.

Insbesondere liegen die Zentrieröffnung und der Zentrierring formschlüssig aneinander an. Geeigneterweise ist die Zentrieröffnung topfförmig. Mit anderen Worten weist die Zentrieröffnung einen Boden auf. Somit ist die Nabe auf der dem Rotor abgewandten Seite im Bereich der Zentrieröffnung nicht geöffnet, weshalb ein Luftstrom vergleichsweise ungehindert an der Nabe vorbei strömen kann, ohne dass vergleichsweise viele Turbulenzen entstehen, welche zu einer erhöhten Geräuschbelästigung führen. Mittels der ineinander angeordneten Zentrieröffnung bzw. des Zentrierrings wird das Lüfterrad vergleichsweise genau positioniert. Bei der Herstellung des Rotors und des Lüfterrads können somit auch im Bereich dieser beiden Verbindungselemente vergleichsweise große Fertigungstoleranzen gewählt werden, wobei dennoch die gewünschte Rotationsachse des Lüfterrads mit der Rotationsachse des Rotors zusammenfällt.In particular, the centering opening and the centering ring are positively against each other. Suitably, the centering opening is cup-shaped. In other words, the centering hole has a bottom. Thus, the hub is not open on the side facing away from the rotor in the region of the centering opening, which is why an air flow can flow comparatively unhindered past the hub, without causing comparatively many turbulences, which lead to increased noise nuisance. By means of the nested centering or the centering the fan is relatively accurately positioned. In the manufacture of the rotor and the fan thus comparatively large manufacturing tolerances can thus be selected in the region of these two connecting elements, yet the desired axis of rotation of the fan coincides with the axis of rotation of the rotor.

Geeigneterweise umfasst der Rotor eine Mitnahmerippe und insbesondere eine Anzahl von Mitnahmerippen. Die Mitnahmerippe bzw. die Mitnahmerippen greifen im montierten Zustand des Lüfters in einen zu dieser bzw. diesen korrespondierten Schlitz der Nabe ein. Beispielsweise ist die Mitnahmerippe form- und/oder kraftschlüssig in dem Schlitz angeordnet. Bevorzugt ist die Mitnahmerippe vergleichsweise weit von der Rotationsachse entfernt angeordnet und befindet sich insbesondere an der Stirnseite des Rotors. Mittels der Mitnahmerippe wird die Rotationsbewegung des Rotors auf das Lüfterrad übertragen. Somit erfolgt die Kraftübertragung nicht oder zumindest lediglich teilweise unter Zuhilfenahme des Verbindungsdoms, der daher nicht oder nur vergleichsweise gering mechanisch belastet wird. Deshalb ist die Lebensdauer des bzw. der Verbindungsdome vorteilhaft erhöht. Vorteilhafterweise verläuft die Mitnahmerippe bzw. jede Mitnahmerippe radial. Auf diese Weise ist der Kraftübertrag vergleichsweise groß, wobei der Rotor in beide Rotationsbewegungsrichtungen sicher betrieben werden kann, ohne dass ein Schlupf zwischen dem Rotor und Lüfterrad entsteht.Suitably, the rotor comprises a driving rib and in particular a number of driving ribs. In the installed state of the fan, the driving rib or the driving ribs engage in a slot of the hub which corresponds to this or this one. For example, the driving rib is positively and / or non-positively arranged in the slot. Preferably, the driving rib is arranged comparatively far away from the axis of rotation and is located in particular on the end face of the rotor. By means of the driving rib, the rotational movement of the rotor is transmitted to the fan. Thus, the power transmission is not or at least only partially with the aid of the Verbindungsdoms, which is therefore not or only comparatively little mechanical load. Therefore, the life of the connecting dome (s) is advantageously increased. Advantageously, the entrainment rib or each driving rib extends radially. In this way, the power transmission is comparatively large, wherein the rotor can be safely operated in both directions of rotational movement, without causing a slip between the rotor and fan.

Insbesondere ist die Mitnahmerippe bzw. die Mitnahmerippen an dem Zentrierring angeformt. Beispielsweise sind der Zentrierring und die Mitnahmerippen einstückig hergestellt. Dies führt sowohl zu einer vergleichsweise kostengünstigen Fertigung als auch zu einer vergleichsweise hohen Stabilität sowohl des Zentrierrings als auch der Mitnahmerippen, welche sich gegenseitig stützen.In particular, the driving rib or the driving ribs is integrally formed on the centering ring. For example, the centering ring and the driving ribs are made in one piece. This leads both to a comparatively inexpensive production as well as a comparatively high stability of both the centering ring and the driving ribs, which support each other.

Besonders bevorzugt sind die Schlitze in eine Begrenzungskontur der Zentrieröffnung eingebracht. Beispielsweise befinden sich die Schlitze in der Mantelfläche der hohlzylindrischen Zentrieröffnung, sodass diese zumindest teilweise aus einer Anzahl von Hohlzylindersegmenten gebildet ist. Auf diese Weise sind die Anzahl und das Gewicht der einer Verbindung des Lüfterrads mit dem Rotor dienenden Elemente des Lüfterrads vergleichsweise gering, weshalb dieses eine vergleichsweise geringe Trägheit aufweist.Particularly preferably, the slots are introduced into a boundary contour of the centering opening. For example, the slots are in the lateral surface of the hollow cylindrical centering, so that it is at least partially formed of a number of hollow cylinder segments. In this way, the number and weight of a connection of the fan to the rotor serving elements of the fan are relatively low, which is why this has a relatively low inertia.

In einer besonders bevorzugten Ausführungsform ist der Verbindungsdom einstückig mit einer elektrisch isolierenden Kunststoffumspritzung eines Rotorpakets des Rotors. Mit anderen Worten wird der Verbindungsdom in einem Arbeitsschritt der Fertigung des Rotors hergestellt, welcher ebenfalls der Sicherung vor einem elektrischen Kurzschluss einzelner Bestandteile des Rotors dient. Die einzelnen Bestandteile sind beispielsweise Feldwicklungen einer Spule mittels derer ein Magnetfeld erzeugt wird oder aber auch einzelne Rotorbleche, die gegeneinander isoliert sind und im Wesentlichen das Rotorpacket bilden, um eine Ausbildung von Wirbelströmungen zu vermeiden. Auf diese Weise entfällt eine gesonderte Herstellung des Verbindungsdoms und dessen anschließende Anbringung an dem bereits isolierten Rotorpacket, was zu einer Kosten- und Zeitersparnis führt.In a particularly preferred embodiment, the connecting dome is integral with an electrically insulating plastic encapsulation of a rotor core of the rotor. In other words, the connection dome is produced in one step of manufacturing the rotor, which also serves to protect against an electrical short circuit of individual components of the rotor. The individual components are, for example, field windings of a coil by means of which a magnetic field is generated or else individual rotor laminations, which are insulated from one another and essentially form the rotor pack, in order to avoid the formation of turbulent flows. In this way, eliminates a separate production of the Verbindungsdoms and its subsequent attachment to the already isolated rotor package, resulting in a cost and time savings.

Alternativ oder in Kombination hierzu sind beispielsweise der Zentrierring und/oder insbesondere die Mitnahmerippe in der gleichen Art und Weise einstückig mit der Kunststoffumspritzung. Zu den bereits genannten Vorteilen ergeben sich darüber hinaus eine erhöhte Stabilität der einzelnen Komponenten und deren Verbindung mit dem Rotor. Ferner ist es ermöglicht, den Zentrierring und somit auch das Lüfterrad vergleichsweise exakt an dem Rotor zu positionieren.Alternatively or in combination, for example, the centering ring and / or in particular the driving rib in the same manner in one piece with the plastic extrusion. In addition to the advantages already mentioned, there is also an increased stability of the individual components and their connection to the rotor. Furthermore, it is possible to position the centering ring and thus also the fan wheel comparatively exactly on the rotor.

In einer geeigneten Ausführungsform bildet die Nabe des Lüfterrads eine Abdeckung des Rotors. Mit anderen Worten ist der Rotor auf der dem Lüfterrad zugewandten Seite offen und wird von der Nabe vor einer Beschädigung oder Verschmutzung geschützt. Auf diese Weise ist eine Gewichtsreduzierung des Elektromotors ermöglicht, weshalb dessen Trägheit reduziert ist. Somit spricht der Elektromotor und der Kühlerlüfter auf eine veränderte Ansteuerung vergleichsweise schnell an, wobei dennoch vergleichsweise geringe Kräfte verwendet werden.In a suitable embodiment, the hub of the fan wheel forms a cover of the rotor. In other words, the rotor is open on the side facing the fan wheel and is damaged by the hub from damage or contamination protected. In this way, a weight reduction of the electric motor is possible, which is why its inertia is reduced. Thus, the electric motor and the radiator fan respond to a changed control relatively quickly, yet still comparatively small forces are used.

In einer besonders bevorzugten Ausführungsform der Erfindung ist der Verbindungsdom hohlzylindrisch aufgebaut. Auf diese Weise ist eine Materialeinsparung des Verbindungsdoms ermöglicht, bei der die Stabilität des Verbindungsdom nicht reduziert ist. Zusätzlich oder anstatt dessen ist der Verbindungsdom zylindrisch. Mit anderen Worten weist der Verbindungsdom eine, insbesondere gerade, Zylinderform auf, wobei zum Beispiel die Grundfläche rund ist. Geeigneterweise ist hierbei die Zylinderachse parallel zur Rotationsachse des Rotors. Zum Beispiel ist der Verbindungsdom röhrenförmig als Hohlzylinder geformt. Ebenso wäre es jedoch auch denkbar, dass der Verbindungsdom eine Grundfläche aufweist, die von einer Kreisform abweicht. Hierbei ist zweckmäßigerweise die korrespondierende Aussparung der Nabe entsprechend der Grundfläche geformt. Mittels einer geeigneten Wahl der Geometrie des Verbindungsdoms ist es ermöglicht, eine vergleichsweise stabile Verbindung zwischen dem Lüfterrad und dem Rotor zu erstellen, wobei das Gewicht der Verbindung reduziert ist.In a particularly preferred embodiment of the invention, the connecting dome is constructed as a hollow cylinder. In this way, a material saving of the connection dome is made possible, in which the stability of the connection dome is not reduced. Additionally or instead, the connection dome is cylindrical. In other words, the connecting dome has a, in particular straight, cylindrical shape, wherein, for example, the base surface is round. Suitably, in this case, the cylinder axis is parallel to the axis of rotation of the rotor. For example, the connection dome is tubular shaped as a hollow cylinder. However, it would also be conceivable that the connection dome has a base area that deviates from a circular shape. In this case, the corresponding recess of the hub is expediently shaped in accordance with the base area. By means of a suitable choice of the geometry of the connection dome, it is possible to create a comparatively stable connection between the fan wheel and the rotor, the weight of the connection being reduced.

In einer besonders geeigneten Weitebildung ist in die Nabe eine Vertiefung eingebracht, innerhalb derer sich die korrespondierende Aussparung befindet. Insbesondere ist die Vertiefung in Richtung des Rotors versetzt. Im montierenden Zustand füllt der Nietkopf des Verbindungsdom die Vertiefung im Wesentlichen zweckmäßigerweise vollständig aus. Auf diese Weise ist eine vergleichsweise große Fläche zum Kraftübertrag des der Verbindung des Lüftungsrads mit dem Rotor dienenden Kraftschlusses bereit gestellt. Ebenso ist die dem Rotor abgewandte Seite der Nabe vergleichsweise eben geformt, was die aerodynamischen Eigenschaften des Kühlerlüfters verbessert. Zweckmäßigerweise ist die Vertiefung konisch oder halbkugelförmig rund, wobei der Durchmesser der Vertiefung mit zunehmender Nähe zum Rotor und der korrespondierenden Aussparung abnimmt.In a particularly suitable Weitebildung a depression is introduced into the hub, within which the corresponding recess is located. In particular, the recess is offset in the direction of the rotor. In the assembled state, the rivet head of the connection dome substantially completely expands the depression substantially. In this way, a comparatively large area is provided for transmitting the force of the connection of the ventilation wheel to the rotor serving frictional connection. Likewise, the side facing away from the rotor of the hub is relatively flat, which improves the aerodynamic properties of the radiator fan. Conveniently, the recess is conical or hemispherical round, wherein the diameter of the recess decreases with increasing proximity to the rotor and the corresponding recess.

Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand einer Zeichnung näher erläutert. Darin zeigen:

Fig. 1
perspektivisch einen Rotor,
Fig. 2
perspektivisch eine Fronseite eines Lüfterrad,
Fig. 3
ausschnittsweise die Fronseite einer Nabe des Lüfterrads,
Fig. 4
perspektivisch eine Rückseite des Lüfterrad,
Fig. 5
ausschnittsweise die Rückseite der Nabe des Lüfterrads, und
Fig. 6
schematisch die Montage des Lüfterrads am Rotor.
An embodiment of the invention will be explained in more detail with reference to a drawing. Show:
Fig. 1
in perspective a rotor,
Fig. 2
in perspective, a front side of a fan,
Fig. 3
partial view of the front side of a hub of the fan,
Fig. 4
in perspective, a rear of the fan,
Fig. 5
a detail of the back of the hub of the fan, and
Fig. 6
schematically the assembly of the fan wheel on the rotor.

Einander entsprechende Teile sind in allen Figuren mit den gleichen Bezugszeichen versehen.Corresponding parts are provided in all figures with the same reference numerals.

In Fig. 1 ist perspektivisch ein zylindrischer Rotor 2 eines schematisch in Fig. 6 gezeigten Kühlerlüfters 4 eines Kraftfahrzeugs dargestellt. Der Kühlerlüfter 4 dient der Kühlung einer Verbrennungskraftmaschine des Kraftfahrzeugs. Hierfür wird Fahrtwind durch ein Kühlernetz gesaugt oder geblasen, durch das eine Kühlflüssigkeit geleitet ist. Die Kühlflüssigkeit wiederrum dient dem Kühlen des Verbrennungsmotors. Ferner wird mittels des Kühlerlüfters 4 ein Luftstrom bereitgestellt, der auf die Verbrennungskraftmaschine gerichtet ist und diese somit direkt kühlt.In Fig. 1 is in perspective a cylindrical rotor 2 of a schematically in Fig. 6 shown radiator fan 4 of a motor vehicle. The radiator fan 4 serves to cool an internal combustion engine of the motor vehicle. For this purpose, wind is sucked or blown through a radiator network through which a cooling liquid is passed. The cooling liquid in turn serves to cool the internal combustion engine. Further, by means of the radiator fan 4, an air flow is provided which is directed to the internal combustion engine and thus directly cools it.

Der Rotor 2 weist ein Rotorblechpaket 6 auf, welches im Wesentlichen aus einer Anzahl von axial übereinander gestapelten und gegeneinander isolierten, kreisförmigen Rotorblechen 8 besteht, die zueinander parallel sind und mittels Befestigungsmitteln zusammengehalten werden. Die einzelnen Rotorbleche 8 sind entweder in eine bestimmte Richtung vormagnetisiert, oder innerhalb der Rotorbleche 8 wird mittels eines hier nicht gezeigten Stators des Elektromotors während des Betriebs des Kühlerlüfters 4 ein Magnetfeld induziert.The rotor 2 has a rotor core 6, which consists essentially of a number of axially stacked and mutually insulated, circular rotor plates 8, which are parallel to each other and held together by means of fastening means. The individual rotor laminations 8 are either premagnetized in a specific direction, or within the rotor laminations 8, a magnetic field is induced by means of a stator, not shown here, of the electric motor during operation of the radiator fan 4.

Das Rotorblechpacket 6 ist von einer Kunststoffumspritzung 10 umgeben, die das Rotorblechpacket 6 gegenüber weiteren Bestandteilen des Elektromotors elektrisch isoliert. Ferner stabilisiert die Kunststoffumspritzung 10 das Rotorblechpacket 6 und hält zusätzlich die einzelnen Rotorbleche 8 zusammen. Darüber hinaus wird mittels der Kunststoffumspritzung 10 eine etwaige Unwucht des Rotorblechpakets 6 ausgeglichen, sodass der Rotor innerhalb des Stators einen vergleichsweise ruhigen Lauf während des Betriebs aufweist.The rotor lamination package 6 is surrounded by a plastic extrusion coating 10, which electrically insulates the rotor lamination package 6 against further components of the electric motor. Furthermore, the plastic extrusion 10 stabilizes the rotor core 6 and additionally holds the individual rotor laminations 8 together. Furthermore is compensated by the plastic extrusion 10 any imbalance of the rotor core 6, so that the rotor within the stator has a relatively quiet running during operation.

An der Kunststoffumspritzung 10 sind vier Verbindungsdome 12 angeformt. Die Form der Verbindungsdome 12 ist hohlzylindrisch, wobei sich die jeweilige Zylinderachse parallel zur Rotorachse 14 erstreckt. Die Rotorachse 14, um die der Rotor während des Betriebs rotiert, fällt mit der Zylinderachse des Rotors 2 zusammen. An jedem der Verbindungsdome 12 sind rotorseitig jeweils sechs Stabilisierungsrippen 16 angeformt, die den korrespondierenden Verbindungsdom 12 sternförmig umgeben. Mit anderen Worten befinden sich die Stabilisierungsrippen 16 in dem Bereich des Verbindungsdoms 12, der dem Rotorpacket 6 am nächsten liegt.At Kunststoffumspritzung 10 four Verbindungsdome 12 are formed. The shape of the connecting dome 12 is hollow cylindrical, wherein the respective cylinder axis extends parallel to the rotor axis 14. The rotor axis 14, about which the rotor rotates during operation, coincides with the cylinder axis of the rotor 2. At each of the connecting dome 12, six stabilizing ribs 16 are integrally formed on the rotor side, which surround the corresponding connecting dome 12 in a star shape. In other words, the stabilizing ribs 16 are in the region of the connecting dome 12 that is closest to the rotor pack 6.

Jede Stabilisierungsrippe 16 ist plättchenförmig, wobei die Hauptausbreitungsrichtung parallel zur Rotorachse 14 ist. Der Querschnitt des Verbindungsdoms - Stabilisierungsrippenverbundes ist rotationssymmetrisch zu einer Achse parallel zur Rotorachse 14 durch das Zentrum des jeweiligen Verbindungsdoms 12. Die Verbindungsdome 12 sind auf einer Grundfläche des zylinderförmigen Rotors 2 angeordnet, die dessen Stirnseite bildet. Hierbei befinden sich die Verbindungsdome 12 in einem von der Rotorachse 14 vergleichsweise großen Abstand, der größer als zwei Drittel des Radius des Rotors 2 ist. Der Abstand der einzelnen Verbindungsdome 12 zu der Rotationsachse 14 ist gleich groß. Die Verbindungsdome 12 sind derart angeordnet, dass jeweils zwei benachbarte Verbindungsdome 12 mit der Rotationsachse 14 ein rechtwinkliges Dreieck einschließen. Somit sind die Verbindungsdome 12 rotationssymmetrisch an der Stirnseite des Rotors 2 verteilt.Each stabilizing rib 16 is platelet-shaped, with the main propagation direction parallel to the rotor axis 14. The cross-section of the connecting dome - stabilizing rib composite is rotationally symmetrical to an axis parallel to the rotor axis 14 through the center of the respective connecting dome 12. The connecting dome 12 are arranged on a base of the cylindrical rotor 2, which forms the end face. In this case, the connection dome 12 are in a relatively large distance from the rotor axis 14, which is greater than two-thirds of the radius of the rotor 2. The distance between the individual connection dome 12 to the rotation axis 14 is equal. The connecting dome 12 are arranged such that each two adjacent Verbindungsdome 12 with the rotation axis 14 include a right triangle. Thus, the connection domes 12 are distributed rotationally symmetrically on the end face of the rotor 2.

An der gleichen Stirnseite des Rotors 2, an der sich die Verbindungsdome 12 befinden, ist ein Zentrierring 18 angeformt, dessen Zentrum sich auf der Rotationsachse 14 befindet. Der Zentrierring 18 ist hohlzylindrisch und erstreckt sich parallel zur Rotationsachse 14 von dem Rotorpacket 6 weg. An dem Zentrierring 18 ist eine Anzahl von Mitnahmerippen 20 angeordnet, die den Zentrierring sternförmig umgeben. Mit anderen Worten verlaufen die trapez- und plättchenförmigen Mitnahmerippen 20 radial. Die Ausdehnung jeder der Mitnahmerippen 20 ist hierbei in Rotationsrichtung 14 geringer als die des Zentrierrings 18. Der Zentrierring 18, jede Mitnahmerippe 20, jeder Verbindungsdom 12 und die jeweiligen Stabilisierungsrippen 16 sind einstückig mit der isolierenden Kunststoffumspritzung 10. Sie alle werden in einem Verfahrensschritt hergestellt, nämlich dann, wenn das Rotorpacket 6 mit der die spätere Kunststoffumspritzung 10 bildende Materialmasse umspritzt wird.On the same front side of the rotor 2, where the connecting dome 12 are located, a centering ring 18 is formed, the center of which is located on the axis of rotation 14. The centering ring 18 is hollow cylindrical and extends parallel to the axis of rotation 14 of the rotor package 6 away. At the centering ring 18, a number of driving ribs 20 is arranged, which surround the centering ring in a star shape. In other words, the trapezoidal and plate-shaped driving ribs run 20 radially. The extent of each of the driving ribs 20 is in this case in the direction of rotation 14 is less than that of the centering ring 18. The centering ring 18, each driving rib 20, each connecting dome 12 and the respective stabilizing ribs 16 are integral with the insulating plastic encapsulation 10. They are all produced in one process step, namely, when the rotor package 6 is overmolded with the later Kunststoffumspritzung 10 forming material mass.

Fig. 2 zeigt eine Frontseite 22a des Lüfterrades 22 des Kühlerlüfters 4 in einem unmontierten Zustand. Unter Frontseite 22a wird diejenige Seite des Lüfterrads 22 verstanden, die im Betrieb des Kühlerlüfters 4 mit dem Fahrtwind während des Betriebs beaufschlagt ist. Das Lüfterrad 22 weist eine Anzahl von Lüfterflügeln 24 auf, die an eine zentrale Nabe 26 angebunden sind. Umfangsseitig werden die Lüfterflügel 24 von einem Stabilisierungsring 28 umgeben. Der Stabilisierungsring 28 dient der Stabilisierung der Lüfterflügel 24 während des Betriebs und vermeidet eine sogenannte Leckluft in einem Übergangsbereich zwischen dem Lüfterrad 22 und einer hier nicht dargestellten Zarge des Kühlerlüfters 4. Das Lüfterrad 22 ist einstückig aus einem Kunststoff hergestellt. Mit anderen Worten sind der Stabilisierungsring 28, alle Lüfterflügel 24 sowie die Nabe 26 stoffschlüssig miteinander verbunden und in einem einzigen Arbeitsschritt hergestellt. Fig. 2 shows a front side 22a of the fan 22 of the radiator fan 4 in an unmounted state. Under front 22a that side of the fan 22 is understood, which is acted upon during operation of the cooling fan 4 with the airstream. The fan 22 has a number of fan blades 24 which are connected to a central hub 26. On the periphery, the fan blades 24 are surrounded by a stabilizing ring 28. The stabilizing ring 28 is used to stabilize the fan blades 24 during operation and avoids a so-called leakage air in a transition region between the fan 22 and a frame of the radiator fan 4, not shown here. The fan 22 is made in one piece from a plastic. In other words, the stabilizing ring 28, all fan blades 24 and the hub 26 are materially connected to each other and made in a single step.

In Fig. 3 ist ein vergrößerter Ausschnitt der Frontseite 22a des Lüfterrads 22 dargestellt. Die Frontseite 22a des Lüfterrads 22 ist vergleichsweise glatt und eben, um Verwirbelungen des Fahrtwindes während des Betriebes zu vermeiden. In die Nabe 26 sind vier halbkugelförmige Vertiefungen 30 eingebracht, die von der Frontseite 22a des Lüfterrads 22 weg gewölbt sind, und von denen drei in Fig. 3 gezeigt sind. Am Boden jeder Vertiefung 30, also an dem Punkt der Vertiefung 30, der am weitesten von der Frontseite 22a des Lüfterrads 22 entfernt ist, ist eine Aussparung 32 eingebracht. Jede Aussparung 32 korrespondiert hierbei mit einem der Verbindungsdome 12. Mit anderen Worten entspricht der Querschnitt jeder Aussparung 32 dem Außenquerschnitt eines jeden Verbindungsdoms 12. Die Vertiefungen 30 und die Aussparung 32 sind jeweils kreuzförmig zum Zentrum des Lüfterrads 22 angeordnet.In Fig. 3 an enlarged section of the front side 22a of the fan wheel 22 is shown. The front side 22a of the fan wheel 22 is relatively smooth and even to avoid turbulence of the airstream during operation. In the hub 26 four hemispherical recesses 30 are introduced, which are curved away from the front side 22 a of the fan 22, and of which three in Fig. 3 are shown. At the bottom of each recess 30, that is at the point of the recess 30, which is farthest from the front side 22a of the fan wheel 22, a recess 32 is introduced. Each recess 32 corresponds to one of the connecting dome 12. In other words, the cross section of each recess 32 corresponds to the outer cross section of each connecting dome 12. The recesses 30 and the recess 32 are each arranged in a cross shape to the center of the fan 22.

In Fig. 4 und 5 ist perspektivisch ausschnittsweise eine Rückseite 22b des Lüfterrads 22 dargestellt, wobei Fig. 5 einen Ausschnitt aus Fig. 4 zeigt. Die Rückseite 22b bezeichnet hierbei die der Frontseite 22a gegenüberliegende Seite des Lüfterrads 22. Aus Fig. 4 wird deutlich, dass die Nabe 26 topfförmig ist und eine Rippenstruktur 34 innerhalb der zur Rückseite 22b offenen Nabe 26 zur Stabilisierung derselben aufweist. Im Zentrum der Nabe 26 befindet sich eine ebenfalls topfförmige Zentrieröffnung 36, die konzentrisch mit der Nabe 26 ist, und die eine hohlzylindrische Begrenzungskontur 38 umfasst. Die Begrenzungskontur 38 umfasst eine Anzahl von Schlitzen 40, deren Tiefe geringer als die Höhe der Begrenzungskontur 38 ist, und die von der dem Topfboden entfernten Seite der Begrenzungskontur 38 in diese eingebracht sind.In Fig. 4 and 5 is a perspective detail of a back 22 b of the fan 22 is shown, wherein Fig. 5 a section from Fig. 4 shows. The back side 22b hereby designates the side of the fan wheel 22 opposite the front side 22a Fig. 4 As can be seen, the hub 26 is pot-shaped and has a rib structure 34 within the hub 26 open to the back 22b for stabilizing the same. In the center of the hub 26 is also a cup-shaped centering opening 36 which is concentric with the hub 26, and which comprises a hollow cylindrical boundary contour 38. The boundary contour 38 comprises a number of slots 40 whose depth is less than the height of the boundary contour 38 and which are introduced from the side of the boundary contour 38 remote from the bottom of the pot.

Fig. 6 zeigt schematisch vereinfacht ausschnittsweise den montierten Kühlerlüfter 4 in einer Schnittdarstellung entlang der Rotorachse 14. Zur Montage wird jeder der Verbindungsdome 12 durch eine der Aussparungen 32 der Nabe 26 geführt und das Lüfterrad 22 auf die Stabilisierungsflügel 16 aufgesetzt. Der zentrale Zentrierring 18 des Rotors 2 greift hierbei in die Zentrieröffnung 36 des Lüfterrades 22 ein. Auf diese Weise wird das Lüfterrad 22 vergleichsweise exakt positioniert, da der Zentrierring 18 umfänglich an der Innenseite der Begrenzungskontur 38 anliegt. Fig. 6 shows schematically simplified partial cut the mounted radiator fan 4 in a sectional view along the rotor axis 14. For assembly, each of the connecting dome 12 is guided through one of the recesses 32 of the hub 26 and the fan 22 mounted on the stabilizer wings 16. The central centering ring 18 of the rotor 2 engages in the centering opening 36 of the fan wheel 22. In this way, the fan 22 is positioned relatively accurately, since the centering ring 18 abuts circumferentially on the inside of the boundary contour 38.

Jede der Mitnahmerippen 20 des Rotors wird formschlüssig in jeweils einem der hierzu korrespondierenden Schlitze 40 des Lüfterrads 22 angeordnet. Das Lüfterrad 22 wird somit mittels der Zentrieröffnung 36 und dem Zentrierring 18 positioniert, weshalb zwischen dem Verbindungsdom 12 und der jeweiligen korrespondierten Aussparung 32 relativ große Fertigungstoleranzen gewählt werden können. In einem sich daran anschließenden Arbeitsschritt wird jeder der Verbindungsdome 12 freiendseitig 42 erwärmt und verstemmt sowie dabei zu einem Nietkopf 44 verformt, der die jeweilige Vertiefung 30 ausfüllt. Auf diese Weise ist das Lüfterrad 22 kraftschlüssig an dem Rotor 2 fixiert, wobei die Frontseite 22a mit den jeweiligen Nietköpfen 44 eine Ebene bilden. Auf diese Weise wird eine Verwirbelung eines Luftstroms vermieden, mit dem der Kühlerlüfter 4 frontseitig 22a während des Betriebs beaufschlagt wird.Each of the driving ribs 20 of the rotor is arranged in a form-fitting manner in each case one of the corresponding slots 40 of the fan wheel 22. The fan wheel 22 is thus positioned by means of the centering opening 36 and the centering ring 18, which is why between the connecting dome 12 and the respective corresponding recess 32 relatively large manufacturing tolerances can be selected. In an adjoining step, each of the connecting dome 12 is heated and caulked on the free end 42 and thereby deformed into a rivet head 44, which fills the respective recess 30. In this way, the fan wheel 22 is fixed non-positively on the rotor 2, wherein the front side 22a with the respective rivet heads 44 form a plane. That way, one becomes Turbulence avoided an air flow, with which the radiator fan 4 front 22a is applied during operation.

Ferner bildet die Nabe 26 eine stirnseitige Abdeckung 26 des Rotors 2 und schützt diesen somit vor einer Beschädigung, welche insbesondere von den in dem Luftstrom enthaltenen Objekten hervorgerufen werden könnte. Die Übertragung der Rotationsbewegung des Rotors 2 auf das Lüfterrad erfolgt zu einem vergleichsweise großen Teil mittels der in den Schlitzen 40 angeordneten Mitnahmerippen 22. Auf diese Weise werden die Verbindungsdome 12 während des Betriebs vergleichsweise gering belastet und der Kraftschluss ist vergleichsweise sicher.Further, the hub 26 forms an end cover 26 of the rotor 2 and thus protects it from damage, which could be caused in particular by the objects contained in the air flow. The transmission of the rotational movement of the rotor 2 on the fan is done to a relatively large extent by means of the arranged in the slots 40 driving ribs 22. In this way, the connection dome 12 during operation comparatively low load and the adhesion is relatively safe.

Die Erfindung ist nicht auf das vorstehend beschriebene Ausführungsbeispiel beschränkt. Vielmehr können auch andere Varianten der Erfindung von dem Fachmann hieraus abgeleitet werden, ohne den Gegenstand der Erfindung zu verlassen. Insbesondere sind ferner alle im Zusammenhang mit dem Ausführungsbeispiel beschriebene Einzelmerkmale auch auf andere Weise miteinander kombinierbar, ohne den Gegenstand der Erfindung zu verlassen.The invention is not limited to the embodiment described above. Rather, other variants of the invention can be derived therefrom by the person skilled in the art without departing from the subject matter of the invention. In particular, all the individual features described in connection with the exemplary embodiment can also be combined with one another in other ways, without departing from the subject matter of the invention.

Claims (12)

  1. Radiator fan (4) of a motor vehicle, in particular main fan, having a fan wheel (22), which has a hub (26), and having an electric-motor rotor (2), which is attached nonpositively thereto, wherein on the rotor (2) at least one connecting dome (12) is formed integrally and the connecting dome (12) protrudes through a corresponding aperture (32) in the hub (26), characterized in that the connecting dome is widened in the form of a rivet (44) at the free end (42) in order to produce the nonpositive connection, wherein the widening is greater than the diameter of the corresponding aperture (32), and wherein the connecting dome (12) is hollow.
  2. Radiator fan (4) according to Claim 1, characterized in that the connecting dome (12) extends parallel to the rotor axis (14).
  3. Radiator fan (4) according to Claim 1 or 2, characterized in that a number of stabilizing ribs (16) is formed integrally on the rotor side of the connecting dome (12).
  4. Radiator fan (4) according to one of Claims 1 to 3, characterized in that at least two, preferably four, connecting domes (12) are arranged at the same distance radially from the rotor axis (14).
  5. Radiator fan (4) according to one of Claims 1 to 4, characterized in that, on the end face, the rotor (2) has a centering ring (18) centrally on its surface (22a), said centering ring arching axially toward the hub (26) and engaging, in particular positively, in a corresponding pot-shaped centering opening (36) in the hub (26).
  6. Radiator fan (4) according to one of Claims 1 to 5, characterized in that the rotor (2) has a number of driver ribs (20), in particular radial driver ribs, which each engage in a corresponding slot (40) in the hub (26).
  7. Radiator fan (4) according to Claim 6, characterized in that the driver ribs (20) are formed integrally on the centering ring (18).
  8. Radiator fan (4) according to Claim 6 or 7, characterized in that the slots (40) are introduced into a boundary contour (38) of the centering opening (36).
  9. Radiator fan (4) according to one of Claims 6 to 8, characterized in that the connecting dome (12), the centering ring (18) and/or the driver rib (20) is/are integral with an electrically insulating plastic overmolding (10) of a laminated rotor core (6) of the rotor (2).
  10. Radiator fan (4) according to one of Claims 1 to 9, characterized in that the hub (26) at least partially forms a cover (46) for the rotor (2).
  11. Radiator fan (4) according to one of Claims 1 to 10, characterized in that the connecting dome (12) is cylindrical.
  12. Radiator fan (4) according to one of Claims 1 to 11, characterized in that the rivet head (44) of the connecting dome (12) is arranged in a depression (30) in the hub (26), which is, in particular, offset in the direction of the rotor (2) .
EP13708079.2A 2012-01-28 2013-01-28 Radiator fan of a motor vehicle Active EP2807378B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202012000939U DE202012000939U1 (en) 2012-01-28 2012-01-28 Radiator fan of a motor vehicle
PCT/EP2013/000243 WO2013110473A2 (en) 2012-01-28 2013-01-28 Radiator fan of a motor vehicle

Publications (2)

Publication Number Publication Date
EP2807378A2 EP2807378A2 (en) 2014-12-03
EP2807378B1 true EP2807378B1 (en) 2019-11-13

Family

ID=45971588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13708079.2A Active EP2807378B1 (en) 2012-01-28 2013-01-28 Radiator fan of a motor vehicle

Country Status (8)

Country Link
US (1) US10094386B2 (en)
EP (1) EP2807378B1 (en)
KR (1) KR101713615B1 (en)
CN (1) CN104081058B (en)
BR (1) BR112014017458A8 (en)
DE (1) DE202012000939U1 (en)
ES (1) ES2764378T3 (en)
WO (1) WO2013110473A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWD160897S (en) * 2013-10-09 2014-06-01 訊凱國際股份有限公司 Cooling fan (1)
TWD160896S (en) * 2013-10-09 2014-06-01 訊凱國際股份有限公司 Cooling fan (2)
USD750211S1 (en) * 2014-02-27 2016-02-23 Mitsubishi Electric Corporation Propeller fan
US10093152B2 (en) 2014-06-09 2018-10-09 Dometic Sweden Ab Shrouded roof vent for a vehicle
DE102014009146A1 (en) * 2014-06-20 2015-12-24 Ziehl-Abegg Se Electric motor with a rotor, a stator and an electronics housing and fan wheel for an electric motor
USD787037S1 (en) 2015-07-01 2017-05-16 Dometic Sweden Ab Fan
US10400783B1 (en) * 2015-07-01 2019-09-03 Dometic Sweden Ab Compact fan for a recreational vehicle
JP6172234B2 (en) * 2015-10-15 2017-08-02 ダイキン工業株式会社 Electric motor and blower
JP1555680S (en) * 2016-03-01 2016-08-08
USD832987S1 (en) 2016-10-13 2018-11-06 Dometic Sweden Ab Roof fan shroud
US11027595B2 (en) 2016-10-13 2021-06-08 Dometic Sweden Ab Roof fan assembly
US20190154278A1 (en) * 2017-11-21 2019-05-23 Haier Us Appliance Solutions, Inc. Fan assembly for a packaged terminal air conditioner unit
JP7071682B1 (en) * 2021-01-21 2022-05-19 ダイキン工業株式会社 Axial flow fan and air conditioner
DE102022101781A1 (en) 2022-01-26 2023-07-27 Ebm-Papst Mulfingen Gmbh & Co. Kg fan assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54162910U (en) * 1978-05-04 1979-11-14
DE102009003142A1 (en) * 2009-05-15 2010-11-18 Robert Bosch Gmbh Fan-rotor connection for a cooling fan of a motor vehicle

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3642382A (en) * 1969-05-11 1972-02-15 Aisin Seiki Fan assembly
US3885888A (en) * 1973-03-26 1975-05-27 John G Warhol Cooling fan for radiators and the like
CH654455A5 (en) * 1980-05-10 1986-02-14 Papst Motoren Gmbh & Co Kg BRUSHLESS DC MOTOR ARRANGEMENT, ESPECIALLY FOR MAGNETIC DISC DRIVES.
US4384824A (en) * 1981-05-07 1983-05-24 Eagle-Motive Industries, Inc. Universal fan for fan clutch
US4566864A (en) * 1982-04-14 1986-01-28 Nippondenso Co., Ltd. Electric fan device for automotive vehicle
US4554491A (en) * 1984-08-10 1985-11-19 Msl Industries, Inc. Brushless DC motor having a laminated stator with a single stator winding
USRE34456E (en) * 1985-10-08 1993-11-23 Papst Motoren Miniature axial fan
US5188508A (en) * 1991-05-09 1993-02-23 Comair Rotron, Inc. Compact fan and impeller
US5593283A (en) * 1994-08-08 1997-01-14 Eaton Corporation Fan and fan drive and assembly thereof
DE4441649B4 (en) * 1994-11-23 2005-12-22 Temic Automotive Electric Motors Gmbh Blower, in particular axial blower for motor vehicles
US5944497A (en) * 1997-11-25 1999-08-31 Siemens Canada Limited Fan assembly having an air directing member to cool a motor
IT1308475B1 (en) * 1999-05-07 2001-12-17 Gate Spa FAN MOTOR, IN PARTICULAR FOR A HEAT EXCHANGER OF A VEHICLE
JP2002039091A (en) 2000-07-21 2002-02-06 Minebea Co Ltd Blower
JP2002039096A (en) * 2000-07-27 2002-02-06 Minebea Co Ltd Air blower
US6400051B1 (en) * 2001-07-10 2002-06-04 Frank Hsieh Motor rotor and outer shell mounting structure for ceiling fan
EP1621773B1 (en) 2004-07-30 2013-04-17 Brose Fahrzeugteile GmbH & Co. KG, Würzburg Electrically driven cooling ventilator
EP1622243B1 (en) * 2004-07-30 2009-12-16 Brose Fahrzeugteile GmbH & Co. KG, Würzburg Electric motor
KR101018146B1 (en) * 2006-05-31 2011-02-28 로베르트 보쉬 게엠베하 Axial fan assembly
CN101212151A (en) * 2006-12-29 2008-07-02 富准精密工业(深圳)有限公司 Motor with stator fixing structure
DE102009050369A1 (en) * 2009-10-22 2011-04-28 Magna Electronics Europe Gmbh & Co.Kg Axial
US8157524B2 (en) * 2009-12-03 2012-04-17 Robert Bosch Gmbh Axial flow fan with hub isolation slots
US8267673B1 (en) * 2011-05-04 2012-09-18 John Pairaktaridis Brushless cooling fan
CN202579222U (en) * 2012-05-11 2012-12-05 上虞广通风机有限公司 Firefighting high-temperature smoke exhaust axial flow fan
USD726300S1 (en) * 2013-04-24 2015-04-07 Spal Automotive S.R.L. Fan

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54162910U (en) * 1978-05-04 1979-11-14
DE102009003142A1 (en) * 2009-05-15 2010-11-18 Robert Bosch Gmbh Fan-rotor connection for a cooling fan of a motor vehicle

Also Published As

Publication number Publication date
US20140334952A1 (en) 2014-11-13
KR20140119058A (en) 2014-10-08
CN104081058B (en) 2016-08-31
EP2807378A2 (en) 2014-12-03
BR112014017458A8 (en) 2017-07-04
ES2764378T3 (en) 2020-06-03
US10094386B2 (en) 2018-10-09
DE202012000939U1 (en) 2012-03-15
KR101713615B1 (en) 2017-03-08
CN104081058A (en) 2014-10-01
BR112014017458A2 (en) 2017-06-13
WO2013110473A2 (en) 2013-08-01
WO2013110473A3 (en) 2014-01-03

Similar Documents

Publication Publication Date Title
EP2807378B1 (en) Radiator fan of a motor vehicle
EP3646448B1 (en) Electric drive for a motor vehicle
EP1937978B1 (en) Cooling fan for a motor vehicle
EP1621773B1 (en) Electrically driven cooling ventilator
EP1722462B1 (en) Electric machine
EP1224397B1 (en) Electric ventilator
EP2880745B1 (en) Active cooling of a motor with integrated cooling channel
EP3031132B1 (en) Rotor hub assembly, electric fan
EP0345796B1 (en) Ventilator driven by an electric motor
DE69401187T2 (en) Motor vehicle fan with hub
EP2897261B1 (en) Breathing electric motor
DE102013208226B4 (en) Cooling element for a wheel hub drive and wheel hub drive
DE102009035176A1 (en) Wheel hub drive for motor vehicle e.g. passenger car, has disk brake system including brake caliper that is arranged in recess, where recess is provided in stator of electric machine
EP2453138A2 (en) Diagonal ventilator
WO2013007225A1 (en) Electric motor
DE102015226720A1 (en) Electric machine
DE102012215503B4 (en) Rotor of an electric machine and electric machine
DE3779957T3 (en) Cooling in electrical machines.
DE102008054959A1 (en) Electric machine, in particular alternator
EP3617529B1 (en) Fan frame of a motor vehicle
EP2462682B1 (en) Air-core coil winding for hvac blower
DE102014011585A1 (en) Electric machine
DE102021209185A1 (en) Radial fan for a motor vehicle
WO2015185443A2 (en) Drive wheel
WO2021191356A1 (en) Electric-motor drive for a motor vehicle

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20140828

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20170913

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: F04D 29/64 20060101ALI20190708BHEP

Ipc: F04D 29/26 20060101ALI20190708BHEP

Ipc: F04D 29/32 20060101ALI20190708BHEP

Ipc: F04D 25/06 20060101AFI20190708BHEP

INTG Intention to grant announced

Effective date: 20190725

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1201942

Country of ref document: AT

Kind code of ref document: T

Effective date: 20191115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502013013889

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502013013889

Country of ref document: DE

Owner name: BROSE FAHRZEUGTEILE SE & CO. KOMMANDITGESELLSC, DE

Free format text: FORMER OWNER: BROSE FAHRZEUGTEILE GMBH & CO. KOMMANDITGESELLSCHAFT, WUERZBURG, 97076 WUERZBURG, DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20191113

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200313

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191113

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191113

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200214

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191113

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191113

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191113

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200213

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200213

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191113

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200313

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191113

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2764378

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20200603

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191113

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191113

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191113

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191113

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502013013889

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191113

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191113

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191113

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20200131

26N No opposition filed

Effective date: 20200814

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191113

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200131

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200128

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1201942

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200128

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20211217

Year of fee payment: 10

Ref country code: GB

Payment date: 20211209

Year of fee payment: 10

Ref country code: SE

Payment date: 20211210

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191113

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191113

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191113

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20211213

Year of fee payment: 10

Ref country code: ES

Payment date: 20220203

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191113

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20230128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230129

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230131

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20240403

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230129

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240131

Year of fee payment: 12