EP2381112A2 - Ventilateur axial - Google Patents

Ventilateur axial Download PDF

Info

Publication number
EP2381112A2
EP2381112A2 EP11162670A EP11162670A EP2381112A2 EP 2381112 A2 EP2381112 A2 EP 2381112A2 EP 11162670 A EP11162670 A EP 11162670A EP 11162670 A EP11162670 A EP 11162670A EP 2381112 A2 EP2381112 A2 EP 2381112A2
Authority
EP
European Patent Office
Prior art keywords
formations
axial fan
hub
fan according
shaped
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11162670A
Other languages
German (de)
English (en)
Other versions
EP2381112A3 (fr
EP2381112B1 (fr
Inventor
Uwe Aschermann
Markus Schatz
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH 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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP2381112A2 publication Critical patent/EP2381112A2/fr
Publication of EP2381112A3 publication Critical patent/EP2381112A3/fr
Application granted granted Critical
Publication of EP2381112B1 publication Critical patent/EP2381112B1/fr
Not-in-force 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
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations

Definitions

  • the invention relates to an axial fan, according to the preamble of patent claim 1.
  • engine and airflow noise can cause the fan to produce annoying noise during operation.
  • the fan wheels for the engine cooling generate static and dynamic vibrations that are transmitted from the fan blades via the fan hub to the engine and thus to the cooling module. Such unwanted vibrations and disturbing noises should be damped especially in comfort applications.
  • dampers which are to decouple the fan and the cooling module, but the dampers represent an increased installation effort.
  • the weight of the fan unit is increased by additional components.
  • the invention is therefore an object of the invention to provide an axial fan in which can be dispensed with the use of a separate damper or the like.
  • the axial fan is characterized in that the front area is interrupted to achieve a substantially flexible connection of several formations, wherein web-like connecting elements form between each two adjacent formations, and wherein the formations substantially uniformly about the central axis of the central mounting hole on the Extend forehead area.
  • a flexible connection is understood as meaning a connection in which the front area projecting beyond a torque is designed to be elastic or yielding between the mounting opening and the fan wheels. This means that less vibrations are transmitted to the frame, the cooling module and thus the vehicle, since the web-like connecting elements can compensate for these vibrations or imbalances or significantly reduce.
  • the web-like connecting elements thus have the effect that, during operation, the main axis of inertia of the fan wheel can shift in the direction of the axis of rotation.
  • the formations are formed as recesses, which pass completely through the end region of the hub.
  • the remaining between two adjacent recesses material strands form the web-like connecting elements.
  • the recesses may preferably extend uniformly around the mounting opening of the hub on the front region.
  • the remaining webs have a significantly smaller width for the recess or molding or the webs, in contrast to the recess, are made very narrow.
  • a further embodiment provides that the formations are formed as depressions, which have a reduced wall thickness in contrast to the end region.
  • the raised material strands remaining between two adjacent depressions form the web-like connecting elements.
  • the remaining raised webs have a width that is significantly smaller for recessing or forming or, in contrast to the recess, the webs are made significantly narrower.
  • the areas with a smaller wall thickness have no supporting function.
  • the formations are bellows-shaped, wherein the bellows-like formation has a substantially S-shaped cross section with a radially inner and a radially outer fold, and wherein the folds form the web-like connecting element.
  • the bellows-like formations may have a reduced wall thickness compared to the rest of the end region.
  • the bellows-like formations extend substantially annularly continuously around the mounting opening.
  • one or more bellows-like formations may be provided.
  • a plurality of adjacent bellows-like formations may differ in size and shape from each other.
  • the formations may be formed slot-like, wherein a plurality of formations in the circumferential direction evenly distributed and / or extend around the central mounting hole evenly next to and / or one above the other circularly extending.
  • the formations thus run uniformly over a certain radius around the mounting opening.
  • the elongated holes can pass completely through the forehead region or can be formed only as depressions with a lesser material thickness.
  • the remaining strands of material between adjacent oblong holes (above or next to one another) form the web-like connecting elements.
  • the formations may be sickle-shaped or fan-shaped, wherein the formations extend radially outwards starting from the mounting opening and are distributed substantially annularly around the mounting opening.
  • the width of each sickle-shaped or fan-shaped formation increases uniformly starting from the mounting opening in the radial direction to the outside.
  • the formations may be straight and extend radially outward from the central opening, with straight web-like connecting elements forming between the formations.
  • the web-like connecting elements can be evenly distributed around the mounting opening on the end face.
  • a preferred embodiment provides that the formations designed as a recess can be covered with a film, in particular an adhesive film. This is particularly advantageous from an aerodynamic point of view. For example, the entire front area (front and / or back) may be covered with a film.
  • the foil has no supporting function.
  • a further preferred embodiment provides that a multiplicity of reinforcing ribs extending in the radial and axial direction can be arranged within the cup-shaped hub.
  • These reinforcing ribs can be L-shaped, for example, and are supported at least in part on the front and peripheral regions of the hub .
  • the reinforcing ribs on the one hand sufficient bending stiffness of the hub and on the other hand, a cooling effect for surrounding components, such as the drive motor, can be realized.
  • the protrusions may extend in radial alignment substantially to the end face of the reinforcing ribs on the forehead area.
  • the axial fan can be formed in one piece, in particular as a plastic injection-molded part.
  • Fig. 1 shows an axial fan 1 in a perspective partial view.
  • the axial fan 1 consists essentially of a hub 2 for connecting the axial fan 1 with an electric drive motor, the hub 2 is substantially pot-shaped and has a front portion 3 and a substantially cylindrical peripheral portion 4, and wherein the hub 2 has a central mounting hole 5, via which the hub 2 can be connected to the drive shaft of the motor.
  • the end region 3 of the hub 2 is interrupted to achieve a rotationally soft and / or flexible connection of a plurality of recesses formed as a recess 6.
  • the recesses fully penetrate the end region 3 of the hub 2. Between adjacent formations 6 each material strands remain, the material strands form the web-like connecting elements 7.
  • the formations 6 are formed sickle-shaped. Also sickle-shaped are the fan blades 8, which are integrally formed on the hub 2. Further, a plurality of internal reinforcing ribs 9 are integrally formed on the hub 2, wherein the reinforcing ribs 9 are formed substantially L-shaped. The formations 6 extend in radial alignment from the mounting opening 5 substantially to the end face 10 of the reinforcing ribs 9.
  • the hub 2 is provided by the transition of the substantially flat end portion 3 to the cylindrical peripheral portion 4 with a rounded transition region 11.
  • the entire axial fan 1 is made in one piece.
  • Fig. 2 shows an axial fan 1 'in a perspective partial view.
  • the axial fan 1 ' consists essentially of a hub 2' for connecting the axial fan 1 ', with an electric drive motor, wherein the hub 2' is substantially cup-shaped and has a flat end portion 3 'and a substantially cylindrical peripheral portion 4', and wherein the hub 2 'has a central mounting opening 5', via which the hub 2 'can be connected to the drive shaft of the motor.
  • the end portion 3 'of the hub 2' is interrupted in order to achieve a soft and / or flexible connection of a plurality of recesses formed as a recess 6 '.
  • the recesses completely pass through the end region 3 'of the hub 2'.
  • the formations 6 ' are formed slot-like.
  • the elongated holes are evenly distributed annularly on a defined radius extending around the mounting hole 5 'on the end portion 3'.
  • the axial fan 1 "consists of a hub 2", a flat end region 3 "and a cylindrical peripheral region 4". "The hub 2" has a central mounting opening 5 "over which the hub 2" can be connected to the drive shaft of an engine.
  • the end region 3 "of the hub 2" is interrupted by two bellows-like formations 6 "
  • the bellows-like formations 6 form two cross-sectionally substantially S-shaped connecting elements 7 ", with a radially inner and a radially outer fold, the one form the common bottom portion 12.
  • the formations 6 have a lower material thickness than the flat end portion 3".

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP11162670.1A 2010-04-22 2011-04-15 Ventilateur axial Not-in-force EP2381112B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010028099A DE102010028099A1 (de) 2010-04-22 2010-04-22 Axiallüfter

Publications (3)

Publication Number Publication Date
EP2381112A2 true EP2381112A2 (fr) 2011-10-26
EP2381112A3 EP2381112A3 (fr) 2013-01-23
EP2381112B1 EP2381112B1 (fr) 2017-10-25

Family

ID=44201936

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11162670.1A Not-in-force EP2381112B1 (fr) 2010-04-22 2011-04-15 Ventilateur axial

Country Status (2)

Country Link
EP (1) EP2381112B1 (fr)
DE (1) DE102010028099A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012080035A1 (fr) * 2010-12-15 2012-06-21 Robert Bosch Gmbh Soufflante à liaison souple avec l'arbre
EP3076022A1 (fr) * 2015-03-30 2016-10-05 Nidec Corporation Turbine et soufflante
CN111919034A (zh) * 2018-03-29 2020-11-10 三菱电机株式会社 轴流叶片及鼓风机
EP3892860A1 (fr) * 2016-10-26 2021-10-13 MAN Truck & Bus SE Roue de ventilateur axial

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3830424B1 (fr) 2018-08-02 2024-09-11 Horton, Inc. Ventilateur de refroidissement de véhicule à faible plénitude

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3127518A1 (de) * 1981-07-11 1983-01-27 Maico Elektroapparate-Fabrik GmbH, 7730 Villingen-Schwenningen Axialventilator
DE3301918A1 (de) * 1983-01-21 1984-07-26 Robert Bosch Gmbh, 7000 Stuttgart Elektromotor, insbesondere zum antreiben eines auf einer motorwelle sitzenden luefterrades
US4639193A (en) * 1984-11-09 1987-01-27 Siemens Aktiengesellschaft Fan wheel for radial fan
JPH0623176Y2 (ja) * 1990-01-19 1994-06-15 株式会社三ツ葉電機製作所 フアンモータの防水構造
JPH05256299A (ja) * 1992-03-13 1993-10-05 Toshiba Corp 送風機
DE19905075C2 (de) * 1999-02-08 2003-05-15 Valeo Klimasysteme Gmbh Lüfterrad, insbesondere zum Einsatz für Heiz- oder Klimaanlagen von Fahrzeugen
DE10153412A1 (de) * 2001-10-30 2003-05-15 Bosch Gmbh Robert Lüfterbefestigung mit dynamischem Unwuchtausgleich
EP1498613B1 (fr) * 2003-07-15 2010-05-19 EMB-Papst St. Georgen GmbH & Co. KG Ensemble ventilateur et sa méthode de fabrication
DE102006035583A1 (de) * 2006-07-31 2008-02-07 Valeo Klimasysteme Gmbh Vorrichtung zur Halterung eines elektrischen Gebläse-Antriebsmotors am Gehäuse einer Heiz-, Lüftungs- und/oder Klimaanlage für Fahrzeuge
DE102006038655A1 (de) * 2006-08-18 2008-02-21 Behr Gmbh & Co. Kg Axiallüfter mit elektrischem Antrieb
JP3904595B1 (ja) * 2006-11-08 2007-04-11 山洋電気株式会社 二重反転式軸流送風機
CN101358609A (zh) * 2007-08-03 2009-02-04 富准精密工业(深圳)有限公司 风扇转子

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012080035A1 (fr) * 2010-12-15 2012-06-21 Robert Bosch Gmbh Soufflante à liaison souple avec l'arbre
EP3076022A1 (fr) * 2015-03-30 2016-10-05 Nidec Corporation Turbine et soufflante
EP3892860A1 (fr) * 2016-10-26 2021-10-13 MAN Truck & Bus SE Roue de ventilateur axial
CN111919034A (zh) * 2018-03-29 2020-11-10 三菱电机株式会社 轴流叶片及鼓风机
JPWO2019186910A1 (ja) * 2018-03-29 2020-12-03 三菱電機株式会社 軸流羽根及び送風機
EP3779207A4 (fr) * 2018-03-29 2021-04-07 Mitsubishi Electric Corporation Pale à écoulement axial et soufflante

Also Published As

Publication number Publication date
EP2381112A3 (fr) 2013-01-23
EP2381112B1 (fr) 2017-10-25
DE102010028099A1 (de) 2011-10-27

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