EP2807378B1 - Kühlerlüfter eines kraftfahrzeugs - Google Patents

Kühlerlüfter eines kraftfahrzeugs Download PDF

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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)
English (en)
French (fr)
Other versions
EP2807378A2 (de
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/de
Application granted granted Critical
Publication of EP2807378B1 publication Critical patent/EP2807378B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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.

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  • 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)
EP13708079.2A 2012-01-28 2013-01-28 Kühlerlüfter eines kraftfahrzeugs Active EP2807378B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202012000939U DE202012000939U1 (de) 2012-01-28 2012-01-28 Kühlerlüfter eines Kraftfahrzeugs
PCT/EP2013/000243 WO2013110473A2 (de) 2012-01-28 2013-01-28 Kühlerlüfter eines kraftfahrzeugs

Publications (2)

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

Family

ID=45971588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13708079.2A Active EP2807378B1 (de) 2012-01-28 2013-01-28 Kühlerlüfter eines kraftfahrzeugs

Country Status (8)

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

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TWD160897S (zh) * 2013-10-09 2014-06-01 訊凱國際股份有限公司 散熱風扇(一)
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US10093152B2 (en) 2014-06-09 2018-10-09 Dometic Sweden Ab Shrouded roof vent for a vehicle
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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 (ja) * 2015-10-15 2017-08-02 ダイキン工業株式会社 電動機および送風装置
JP1555680S (ko) * 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
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DE102022101781A1 (de) 2022-01-26 2023-07-27 Ebm-Papst Mulfingen Gmbh & Co. Kg Lüfterbaugruppe

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

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