WO2013060358A1 - Roue de ventilateur axial - Google Patents

Roue de ventilateur axial Download PDF

Info

Publication number
WO2013060358A1
WO2013060358A1 PCT/EP2011/068630 EP2011068630W WO2013060358A1 WO 2013060358 A1 WO2013060358 A1 WO 2013060358A1 EP 2011068630 W EP2011068630 W EP 2011068630W WO 2013060358 A1 WO2013060358 A1 WO 2013060358A1
Authority
WO
WIPO (PCT)
Prior art keywords
hub
axialventilatorrad
axial
blade
wheel body
Prior art date
Application number
PCT/EP2011/068630
Other languages
German (de)
English (en)
Inventor
Oliver Haaf
Erhard Gruber
Original Assignee
Ebm-Papst Mulfingen Gmbh & 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 Ebm-Papst Mulfingen Gmbh & Co. Kg filed Critical Ebm-Papst Mulfingen Gmbh & Co. Kg
Priority to PCT/EP2011/068630 priority Critical patent/WO2013060358A1/fr
Priority to EP11773290.9A priority patent/EP2771581B1/fr
Publication of WO2013060358A1 publication Critical patent/WO2013060358A1/fr

Links

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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system

Definitions

  • the present invention relates according to the preamble of claim 1 a Axialventilatorrad with a wheel body, which consists of a tubular, hollow cylindrical hub and arranged distributed over the circumference, with the outer
  • each fan blade in the region of a hub connected to the blade root extends axially and circumferentially obliquely between an inflow side and an outflow side of the hub.
  • Such an axial fan impeller is described in the document EP 1 609 996 A1 / B1.
  • This impeller can be pressed with its hub for attachment to a rotating part, in particular to a rotor of an electric motor.
  • a substantially cylindrical or annular Ronde is arranged within the hub.
  • the present invention is therefore based on the object to improve a Axialventilatorrad of the described generic type with respect to its main flow and its air performance. This is achieved by the features of independent claim 1 according to the invention.
  • Advantageous embodiments of the invention are in the dependent claims
  • the hub is shortened on its inflow side in the circumferential direction in each case between the blade roots of the adjacent fan blades via peripheral recesses with respect to their axial hub length.
  • Concentrically curved hub rim sections with continuous, edge-free transitions to those in FIG. 2 are preferably formed by the recesses of the hub between the blade roots
  • the invention formed on the inflow side edge of the hub
  • Recesses are expediently designed so that in operation, with rotation of the axial fan wheel by eliminating or minimizing disturbing
  • Fan blades can flow around. As a result of the recesses according to the invention, it is possible to achieve a fan wheel throughflow optimized in particular with regard to the air output.
  • Fig. 1 is an axial plan view of the front inflow side of a
  • Axialventilatorrades invention (view in the direction of arrow I of FIG. 2)
  • FIG. 1 side view in the direction of arrow II of FIG. 1, 3 is a perspective view of the Axialventilatorrades according to FIGS. 1 and 2 obliquely from the rear in the direction of the outflow side,
  • Fig. 4 is a perspective view similar to FIG. 3, but in the mounted on a
  • Fig. 5 is a side view similar to FIG. 2 in the assembled state of FIG. 4 and
  • Fig. 6 is a perspective view of Fig. 4 and 5 obliquely from the front in the direction of the inflow side.
  • An inventive Axialventilatorrad 1 consists of a wheel body 2, which in turn consists of a tubular, hollow cylindrical hub 4 and a plurality of circumferentially distributed, with the outer peripheral surface of the hub 4th
  • Blades 6 are inclined or curved in particular in the direction of rotation, but may also be inclined backwards or curved. In the illustrated
  • Embodiment the fan wheel 1 on seven fan blades 6.
  • the fan blades 6 can evenly with each equal angular intervals or - for the purpose of a "natural balancing" - uneven with unequal
  • Each fan blade 6 extends axially and circumferentially obliquely in the region of a blade root 8 connected to the hub 4, in particular with a specific curvature, between an inflow side 10 and an outflow side 12 of the hub 4 or of the
  • Fan wheel 1 The term "obliquely” hereby also includes a specific course of curvature, see, for example, FIG. 3. As a result of this inclination, inclination or curvature of the fan blades 6, a rotation in FIGS illustrated air flow as the main flow from the inflow side 10 to the outflow side 12.
  • the inflow side 10 is also referred to as the suction side and the outflow side 12 as the pressure side.
  • Recesses 16 can thus be achieved an optimized fan wheel flow. This has a positive influence on the air performance.
  • the Axialventilatorrad 1 is mounted on a rotating part.
  • an annular disc 20 is fixed, with which the wheel body 2 on the rotating part, according to FIG. 4 to 6 in particular to a cylindrical
  • the openings 26 form cooling channels which connect two annular gap regions formed axially on both sides of the round plate 20 and radially between the hub 4 and the rotor 22 in such a way that the rotor 22 rotates from the pressure side, that is the outflow side 12 Suction side, which is the inflow side 10, flows around the cooling air and thereby the motor 24 is cooled effectively.
  • the openings 26 also allow drainage of condensables that may form in certain applications and under certain operating conditions.
  • the wheel body 2 is formed with the hub 4 and the fan blades 6 in particular made of plastic as a one-piece molding.
  • the blank 20 is at least partially made of metal, for example of a metal-coated with plastic sheet metal.
  • the circular blank 20 has first and second surface sections arranged alternately in the circumferential direction on its inner circumference, the first surface sections having a first , larger inner diameter and the second surface portions define a second, smaller inner diameter.
  • the smaller inner diameter of the second surface portions is designed such that in this area when pressing the frictional mounting on the rotor 22 is effected.
  • Ronde is a segmented Ronde, wherein the inner peripheral surface is divided into said sections with different inner diameters.
  • the smaller diameter portions are widened during the pressing operation, while the larger diameter portions do not or only insignificantly change their radial position during the pressing operation, but advantageously bring about a reduction in the mean level of the mechanical tension values.
  • the blank 20 can be molded directly into the material during the injection process of the wheel body 2 cohesively and optionally additionally encapsulated in plastic.
  • Axialventilatorrades 1 reached. The biggest effects occur with short motor sizes, ie. H. at low axial length. Also for applications without the
  • Cooling flow is a significant advantage due to the selected hub geometry, because the main flow in the hub area causes significantly lower vortices on the hub by avoiding or eliminating impurities.
  • the invention has hitherto not been limited to the feature combination defined in claim 1, but may also be defined by any other combination of specific features of all individually disclosed individual features. This means that in principle virtually every individual feature of claim 1 can be omitted or replaced by at least one individual feature disclosed elsewhere in the application. In this respect, the claim 1 is to be understood only as a first formulation attempt for an invention.

Abstract

Roue de ventilateur axial (1) qui comporte un corps (2) constitué d'un moyeu cylindrique creux (4) et de plusieurs aubes (6) reliées au moyeu (4) et réparties sur la périphérie dudit moyeu. Chaque aube (6) du ventilateur s'étend axialement dans la zone d'un pied d'aube (8) relié au moyeu (4), puis de manière inclinée dans la direction périphérique entre un côté d'admission (10) et un côté d'évacuation (12) du moyeu (4). Sur son côté d'admission (10), le moyeu (4) présente un raccourcissement de sa longueur axiale dans la direction périphérique entre les pieds (8) des aubes (6) voisines, obtenu par la présence d'évidements (16) ménagés dans son bord.
PCT/EP2011/068630 2011-10-25 2011-10-25 Roue de ventilateur axial WO2013060358A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/EP2011/068630 WO2013060358A1 (fr) 2011-10-25 2011-10-25 Roue de ventilateur axial
EP11773290.9A EP2771581B1 (fr) 2011-10-25 2011-10-25 Roue de ventilateur axial

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2011/068630 WO2013060358A1 (fr) 2011-10-25 2011-10-25 Roue de ventilateur axial

Publications (1)

Publication Number Publication Date
WO2013060358A1 true WO2013060358A1 (fr) 2013-05-02

Family

ID=45688098

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/068630 WO2013060358A1 (fr) 2011-10-25 2011-10-25 Roue de ventilateur axial

Country Status (2)

Country Link
EP (1) EP2771581B1 (fr)
WO (1) WO2013060358A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10267338B2 (en) * 2016-07-27 2019-04-23 Nidec Corporation Impeller and motor

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD938010S1 (en) 2019-12-10 2021-12-07 Regal Beloit America, Inc. Fan hub
US11859634B2 (en) 2019-12-10 2024-01-02 Regal Beloit America, Inc. Fan hub configuration for an electric motor assembly
USD938011S1 (en) 2019-12-10 2021-12-07 Regal Beloit America, Inc. Fan blade
US11371517B2 (en) 2019-12-10 2022-06-28 Regal Beloit America, Inc. Hub inlet surface for an electric motor assembly
USD952830S1 (en) 2019-12-10 2022-05-24 Regal Beloit America, Inc. Fan shroud
US11555508B2 (en) 2019-12-10 2023-01-17 Regal Beloit America, Inc. Fan shroud for an electric motor assembly
USD938009S1 (en) 2019-12-10 2021-12-07 Regal Beloit America, Inc. Fan hub

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1219837A2 (fr) * 2001-01-02 2002-07-03 Behr GmbH & Co. Ventilateur à pales axiales
WO2003010438A1 (fr) * 2001-07-27 2003-02-06 Spal S.R.L. Unite de ventilation
US20030138324A1 (en) * 2002-01-24 2003-07-24 Hsieh Hsin-Mao Cooling fan
DE202004005548U1 (de) * 2003-04-19 2004-06-17 Ebm-Papst St. Georgen Gmbh & Co. Kg Lüfter
EP1609996A1 (fr) 2004-06-25 2005-12-28 ebm-papst Mulfingen GmbH & Co.KG Rotor, en particulier pour ventilateur axial
US20070172350A1 (en) * 2006-01-23 2007-07-26 Delta Electronics, Inc. Fan and impeller thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1219837A2 (fr) * 2001-01-02 2002-07-03 Behr GmbH & Co. Ventilateur à pales axiales
WO2003010438A1 (fr) * 2001-07-27 2003-02-06 Spal S.R.L. Unite de ventilation
US20030138324A1 (en) * 2002-01-24 2003-07-24 Hsieh Hsin-Mao Cooling fan
DE202004005548U1 (de) * 2003-04-19 2004-06-17 Ebm-Papst St. Georgen Gmbh & Co. Kg Lüfter
EP1609996A1 (fr) 2004-06-25 2005-12-28 ebm-papst Mulfingen GmbH & Co.KG Rotor, en particulier pour ventilateur axial
US20070172350A1 (en) * 2006-01-23 2007-07-26 Delta Electronics, Inc. Fan and impeller thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10267338B2 (en) * 2016-07-27 2019-04-23 Nidec Corporation Impeller and motor

Also Published As

Publication number Publication date
EP2771581B1 (fr) 2018-12-26
EP2771581A1 (fr) 2014-09-03

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