EP1609996B1 - Rotor, en particulier pour ventilateur axial - Google Patents

Rotor, en particulier pour ventilateur axial Download PDF

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Publication number
EP1609996B1
EP1609996B1 EP05104899A EP05104899A EP1609996B1 EP 1609996 B1 EP1609996 B1 EP 1609996B1 EP 05104899 A EP05104899 A EP 05104899A EP 05104899 A EP05104899 A EP 05104899A EP 1609996 B1 EP1609996 B1 EP 1609996B1
Authority
EP
European Patent Office
Prior art keywords
hub
portions
impeller according
circular blank
impeller
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
EP05104899A
Other languages
German (de)
English (en)
Other versions
EP1609996A1 (fr
Inventor
Erhard Gruber
Reinhard Strohmeier
Otmar Huegel
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.)
Ebm Papst Mulfingen GmbH and Co KG
Original Assignee
Ebm Papst Mulfingen 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 Ebm Papst Mulfingen GmbH and Co KG filed Critical Ebm Papst Mulfingen GmbH and Co KG
Priority to PL05104899T priority Critical patent/PL1609996T3/pl
Publication of EP1609996A1 publication Critical patent/EP1609996A1/fr
Application granted granted Critical
Publication of EP1609996B1 publication Critical patent/EP1609996B1/fr
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
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • 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

Definitions

  • the invention relates to an impeller, in particular for an axial fan, with a wheel body, which consists of several, in particular radially outwardly projecting blades and with the blades supporting, substantially tubular, for attachment to a rotating part, such as a rotor, be pressed hub consists, wherein in the hub inside a substantially cylindrical Ronde is arranged.
  • Axial fan wheels each having a wheel body consisting of a plurality of outwardly projecting blades and a hub supporting the blades and attachable to the rotor of an external rotor motor are well known.
  • Axial fan wheels of the type mentioned in the introduction are also known from the applicant's production program, in which the hub is tubular in each case and can be pressed onto the rotor for attachment, with a substantially cylindrical, metallic circular blank being arranged in the hub on the inside of the hub which circumferentially encloses the rotor of the external rotor motor in the assembled state.
  • the cylindrically shaped steel blank of the known plastic wheels is widened during the pressing process. Since the plastic hub fully rests against the steel blank, its expansion is forwarded to the hub, so that in the hub disadvantageously can come to high mechanical stresses that can even cause a wheel break in some cases.
  • Other disadvantages include the fact that a drainage of condensation, which can form at dew point undershooting in the hub, is not possible, and that the plastic hub obstructs the heat transfer through the rotor surface.
  • the invention has for its object to provide a low manufacturing cost an impeller of the type described above with higher mechanical stability, in particular an impeller that allows mechanical To reduce stresses in the hub, which arise as a result of a Aufpressvorgangs on a rotor shaft.
  • the blank comprises alternately arranged first and second portions, wherein the first portions each have a larger inner diameter than the inner diameter of the second portions.
  • a segmented metallic blank in particular steel blank, is used, "segmented" meaning that the cylindrical part of the blank is subdivided into said sections with different inner diameters.
  • the smaller diameter portions are widened during the pressing operation, while the large segment diameter portions do not or only slightly change their radial position during the pressing operation, but advantageously bring about a reduction in the mean level of the mechanical tension values.
  • the hub in the sense of a high mechanical stability can be connected via webs to the Ronde, a plastic extrusion of the blank can be designed so that in particular in the field small diameter pockets are inserted in the hub. Thus, an occurring during pressing deformation of the blank is not forwarded to the hub.
  • the pockets in the hub can also be carried out continuously with advantage in the axial direction, so that a connection is made between the suction and pressure side of the fan. This achieves two other advantages - namely, that a drain of possibly forming condensate is made possible and that an adjusting between the suction and pressure side through the pockets of air flow improves the cooling of the rotor.
  • an impeller according to the invention has a wheel body 1, which comprises a plurality of blades 2, in particular radially outwardly, and a substantially tubular hub 3 carrying the blades 2.
  • a wheel body 1 which comprises a plurality of blades 2, in particular radially outwardly, and a substantially tubular hub 3 carrying the blades 2.
  • substantially cylindrical metallic Ronde 5 is arranged, which in Figs. 9 and 10 as Item is shown.
  • the wheel body 1 is, as FIG. 5 and FIG. 6 to 8 illustrate, attachable to a rotor 6 of an engine and forms an axial fan by the hub 3 is pressed onto the rotor 6 of the motor.
  • the metal Ronde 5 is held by the surrounding plastic extrusion 4 fixing in the hub 3.
  • the blank 5 comprises first and second sections 5a, 5b arranged alternately, the first sections 5a each having a larger inner diameter DA than the inner diameters DB of the second sections 5b. Between the first sections 5a and the second sections 5b, transition sections 5c are arranged, in which the larger inner diameter DA merges into the smaller inner diameter DB.
  • Fig. 3 - and in an enlarged view Fig. 4 - show that the Ronde 5, in particular in the region of the portions 5a with the larger inner diameters DA, via webs 7, preferably over parallel to a longitudinal axis XX (only in Fig. 6 and 9 shown) extending webs 7, can be connected to the hub 3.
  • the round blank 5 can accordingly, in particular in the region of the sections 5a with the larger inner diameters DA, have radially projecting lugs 8 distributed over their annular circumference.
  • the embodiment of these tabs 8 on the blank 5 is illustrated in particular in FIGS. 9 and 10, while FIG. 3, more clearly in FIG. 4, and in section in FIG. 6 and more clearly in FIG.
  • FIG. 7 shows how the tabs 8 are preferably connected to the hub 3 can be - namely, that the lobes 8 of the blank 5 are positively and cohesively embedded in the plastic extrusion 4.
  • the embedding is thereby advantageously in the sense of high stability in the region of the webs 7, which are formed integrally with the hub 3.
  • the webs 7 may preferably - as shown - each consist of a first web portion 7a and a second web portion 7b, the latter being in the region of the plastic extrusion 4 or in particular one Part of the plastic extrusion 4 forms, which includes the Ronde 5 along its entire outer surface cuff-like.
  • the first web portion 7a is located in each case in a region of the hub 3, in which this jumps back radially outwards relative to the lateral surface of the blank 5, which is indicated by the distance designated by the reference symbol S in FIG.
  • the tabs 8 preferably each form the boundary between the first web section 7a and the second web section 7b.
  • the first web portion 7a increases the attachment surface on the hub and thus causes increased stability.
  • the pockets 9 can also extend in the area of the large diameters DA of the blank 5 in the plastic extrusion coating 4.
  • the circumferentially lying between the pockets 9 walls are preferably formed by lying in the region of the large diameter DA in the plastic extrusion 4, described above second web portions 7b, which ensure that the surface pressure between plastic extrusion 4 and Ronde 5 sufficient in each case is high and by the deformation of the pockets 9 no delamination of the plastic extrusion 4 from the blank 5 occurs.
  • the pockets 9 are made continuous in the hub 3 in the axial direction.
  • the resulting breakthroughs in the hub area are - as already mentioned - advantageously a flow around the rotor 6 with cooling air and drainage of dewpoint below forming condensate possible.
  • the presence or the described design of the pockets 9 an independent inventive importance attached.
  • the present invention is not limited to the illustrated embodiments, but includes all the same means and measures in the context of the invention.
  • the present invention provided Ronde segmentation is not bound to a specific type of engine, such as an external rotor, or a specific embodiment of the blades 3 located on the hub 3.
  • the Ronde 5 is not, as described, on the tabs 8 preferably cohesively, but for example, positively and / or positively secured in the hub 3, ie, if, for example, no encapsulation 4 of Ronde 5, but a locking is provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Claims (9)

  1. Roue à aubage, en particulier pour un ventilateur axial, muni d'un corps de roue (1), qui se compose de plusieurs aubes (2) faisant saillie en particulier à l'extérieur de manière radiale, ainsi que d'un moyeu (3) portant les aubes (2), de forme essentiellement tubulaire, pouvant être emmanché pour la fixation sur une pièce rotative, comme un rotor (6), un cerclage (5) essentiellement cylindrique étant disposé côté interne dans le moyeu (3),
    caractérisé en ce que le cerclage (5) comporte des premières et deuxièmes sections (5a, 5b) disposées de manière alternée, les premières sections (5a) présentant respectivement un diamètre intérieur (DA) plus grand que le diamètre intérieur (DB) des deuxièmes sections (5b).
  2. Roue à aubage selon la revendication 1,
    caractérisé en ce que le cerclage (5) - en particulier métallique - est enveloppé d'une gaine en matière plastique (4).
  3. Roue à aubage selon la revendication 1 ou 2,
    caractérisé en ce que des sections de transition (5c) sont disposées entre les premières sections (5a) et les deuxièmes sections (5b), dans lesquelles le diamètre intérieur (DA) le plus grand devient le diamètre intérieur (DB) le plus petit.
  4. Roue à aubage selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que le cerclage (5), en particulier dans la zone des sections (5a) présentant les diamètres intérieurs (DA) les plus grands, est relié au moyeu (3) par le biais de nervures (7), de préférence par le biais de nervures (7) réalisées en un seul tenant avec le moyeu (3) s'étendant parallèlement à un axe longitudinal (X-X) du corps de roue (1).
  5. Roue à aubage selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce que le cerclage (5), en particulier dans la zone des sections (5a) présentant les diamètres intérieurs (DA) les plus grands, présente des pattes (8) s'écartant vers l'extérieur de manière radiale.
  6. Roue à aubage selon la revendication 2 et 5,
    caractérisé en ce que les pattes (8) du cerclage (5) sont encastrées par correspondance de forme et de matière dans la gaine en matière plastique (4), en particulier dans la zone des nervures (7).
  7. Roue à aubage selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce que des poches (9) sont insérées dans le moyeu (3), lesquelles sont disposées dans la gaine en matière plastique (4) en particulier dans la zone des diamètres (DB) les plus petits du cerclage (5)
  8. Roue à aubage selon la revendication 7,
    caractérisé en ce que les poches (9) sont réalisées en continu dans le moyeu (3) dans le sens axial (X-X)
  9. Roue à aubage selon la revendication 7 ou 8,
    caractérisé en ce que les poches (9) sont réalisées de façon oblongue dans le plan horizontal et sont séparées les unes des autres de manière adaptée à la circonférence en particulier par une section de nervure (7b) des nervures (7) reliant le cerclage (5) au moyeu.
EP05104899A 2004-06-25 2005-06-06 Rotor, en particulier pour ventilateur axial Active EP1609996B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05104899T PL1609996T3 (pl) 2004-06-25 2005-06-06 Koło wirnikowe do wentylatora osiowego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202004010088U DE202004010088U1 (de) 2004-06-25 2004-06-25 Laufrad, insbesondere für einen Axialventilator
DE202004010088U 2004-06-25

Publications (2)

Publication Number Publication Date
EP1609996A1 EP1609996A1 (fr) 2005-12-28
EP1609996B1 true EP1609996B1 (fr) 2007-08-08

Family

ID=32981601

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05104899A Active EP1609996B1 (fr) 2004-06-25 2005-06-06 Rotor, en particulier pour ventilateur axial

Country Status (10)

Country Link
US (1) US7442010B2 (fr)
EP (1) EP1609996B1 (fr)
CN (1) CN100445571C (fr)
AT (1) ATE369497T1 (fr)
AU (1) AU2005202448B2 (fr)
DE (2) DE202004010088U1 (fr)
DK (1) DK1609996T3 (fr)
ES (1) ES2290852T3 (fr)
PL (1) PL1609996T3 (fr)
PT (1) PT1609996E (fr)

Cited By (1)

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DE102014225688B3 (de) * 2014-12-12 2016-03-31 Ziehl-Abegg Se Anordnung eines Laufrads auf einem rotierenden Teil und Verfahren zur Herstellung der Anordnung

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DE202005010000U1 (de) * 2005-06-23 2006-11-09 Ebm-Papst Mulfingen Gmbh & Co. Kg Rotor mit Lüfterrad für einen elektronisch kommutierten Elektromotor
FR2891027B1 (fr) * 2005-09-22 2008-01-11 Aereco Sa Turbine amovible pour ventilateur
DE202006011899U1 (de) * 2006-08-03 2007-12-13 Ebm-Papst Mulfingen Gmbh & Co. Kg Ventilatorrad
US8360719B2 (en) * 2009-01-16 2013-01-29 Delta Electronics, Inc. Fan
JP5206482B2 (ja) * 2009-02-24 2013-06-12 日本電産株式会社 送風機用インペラおよび送風機
US10132321B2 (en) * 2009-07-27 2018-11-20 Zhongshan Broad-Ocean Motor Co., Ltd. Fan system having an external rotor
CN201439764U (zh) * 2009-07-27 2010-04-21 中山大洋电机股份有限公司 一种外转子轴流风扇
US10119710B2 (en) * 2009-09-30 2018-11-06 Zhongshan Broad-Ocean Motor Co., Ltd. Heat exchange system using an external rotor motor
CN201531954U (zh) * 2009-09-30 2010-07-21 中山大洋电机股份有限公司 一种热交换系统
DE102009050369A1 (de) * 2009-10-22 2011-04-28 Magna Electronics Europe Gmbh & Co.Kg Axiallüfter
CN102052333A (zh) * 2009-10-29 2011-05-11 鸿富锦精密工业（深圳）有限公司 散热风扇
US8157524B2 (en) * 2009-12-03 2012-04-17 Robert Bosch Gmbh Axial flow fan with hub isolation slots
DE202010011378U1 (de) 2010-08-13 2011-11-14 Ebm-Papst Mulfingen Gmbh & Co. Kg Ventilator-Laufrad
CN102003413A (zh) * 2010-12-23 2011-04-06 美的集团有限公司 一种换气扇的风叶
WO2013060358A1 (fr) 2011-10-25 2013-05-02 Ebm-Papst Mulfingen Gmbh & Co. Kg Roue de ventilateur axial
JP5705945B1 (ja) * 2013-10-28 2015-04-22 ミネベア株式会社 遠心式ファン
USD750211S1 (en) 2014-02-27 2016-02-23 Mitsubishi Electric Corporation Propeller fan
DE102014215817A1 (de) * 2014-08-08 2016-02-11 Ziehl-Abegg Se Anordnung eines Laufrads auf einem Elektromotor und Verfahren zur Herstellung der Anordnung
DE102015205424A1 (de) * 2015-03-25 2016-09-29 Ebm-Papst Mulfingen Gmbh & Co. Kg Nachleitrad
CN105257594A (zh) * 2015-10-26 2016-01-20 杭州微光电子股份有限公司 一种具有散热结构的外转子轴流风机叶轮装置
USD809643S1 (en) * 2016-04-07 2018-02-06 Ebm-Papst Mulfingen Gmbh & Co. Kg Blower wheel disc
US10294955B2 (en) * 2016-04-19 2019-05-21 Ge Global Sourcing Llc Fan apparatus
US10291103B2 (en) 2016-10-13 2019-05-14 SFEG Corp. Brushless direct current motor with integrated fan
EP3505768B1 (fr) * 2018-01-02 2021-07-21 Carrier Corporation Ensemble de ventilateur
CN108397404B (zh) * 2018-02-23 2020-05-22 杭州微光电子股份有限公司 轴流风机及通风散热设备
DE112019003659B4 (de) 2018-07-20 2022-11-17 Ihi Corporation Elektrischer Kompressor
USD980965S1 (en) * 2019-05-07 2023-03-14 Carrier Corporation Leading edge of a fan blade
DE102021214267A1 (de) 2021-12-13 2023-06-15 Ziehl-Abegg Se Axial-, Diagonal- oder Radialventilator
DE102022131248A1 (de) 2022-11-25 2024-05-29 Ebm-Papst Mulfingen Gmbh & Co. Kg Diagonallaufrad mit variierender Nabenfläche

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Publication number Priority date Publication date Assignee Title
DE102014225688B3 (de) * 2014-12-12 2016-03-31 Ziehl-Abegg Se Anordnung eines Laufrads auf einem rotierenden Teil und Verfahren zur Herstellung der Anordnung
WO2016091256A1 (fr) 2014-12-12 2016-06-16 Ziehl-Abegg Se Ensemble composé d'une roue à ailettes sur un élément rotatif et procédé de production dudit ensemble

Also Published As

Publication number Publication date
EP1609996A1 (fr) 2005-12-28
DE502005001164D1 (de) 2007-09-20
US7442010B2 (en) 2008-10-28
CN1712737A (zh) 2005-12-28
PL1609996T3 (pl) 2007-11-30
AU2005202448A1 (en) 2006-01-12
PT1609996E (pt) 2007-11-13
AU2005202448B2 (en) 2010-08-05
CN100445571C (zh) 2008-12-24
ES2290852T3 (es) 2008-02-16
ATE369497T1 (de) 2007-08-15
DK1609996T3 (da) 2007-12-17
US20050287005A1 (en) 2005-12-29
DE202004010088U1 (de) 2004-09-09

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