EP1747378B1 - Ensemble ventilateur - Google Patents

Ensemble ventilateur Download PDF

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Publication number
EP1747378B1
EP1747378B1 EP05701406A EP05701406A EP1747378B1 EP 1747378 B1 EP1747378 B1 EP 1747378B1 EP 05701406 A EP05701406 A EP 05701406A EP 05701406 A EP05701406 A EP 05701406A EP 1747378 B1 EP1747378 B1 EP 1747378B1
Authority
EP
European Patent Office
Prior art keywords
fan
air
arrangement according
circuit board
fan arrangement
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.)
Not-in-force
Application number
EP05701406A
Other languages
German (de)
English (en)
Other versions
EP1747378A1 (fr
Inventor
Wolfgang Arno Winkler
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 St Georgen GmbH and Co KG
Original Assignee
Ebm Papst St Georgen 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 St Georgen GmbH and Co KG filed Critical Ebm Papst St Georgen GmbH and Co KG
Publication of EP1747378A1 publication Critical patent/EP1747378A1/fr
Application granted granted Critical
Publication of EP1747378B1 publication Critical patent/EP1747378B1/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
    • 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
    • F04D25/062—Details of the bearings
    • 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
    • F04D29/08—Sealings
    • F04D29/083—Sealings especially adapted for elastic fluid pumps
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/545—Ducts
    • 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
    • F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps

Definitions

  • the power consumption of such fans is 0.4 ... 0.6 W for the 250 series, 0.7 ... 0.9 W for the 400F series, and 0.9 for the 400 and 600 series. 1.6 W. Its typical weight ranges from 4 to 35 grams.
  • Such a fan assembly can be placed directly on a circuit board where the greatest heat loss is generated.
  • the brushless control or regulation of the electric motor of such a fan assembly can be done by means of switching elements, which are integrated into the electronics on the circuit board to be cooled. These switching elements can also change the speed of such a fan assembly depending on the temperature, so that the speed increases with increasing temperature.
  • the mini-fan 16 is driven by an external rotor motor 18 (FIG. Fig. 8 ), and Fig. 2 shows the circuit board 17 to which the stator 44 of the motor 18 is attached.
  • Fig. 12 shows the arrangement according to Fig. 10 after installation in an electronic device 130.
  • the flange 102 is in this case with its sealing ring 106 against the in Fig. 12 upper housing wall 132, which has an air inlet opening 134 in the middle, which is the same size as the upper opening of the air guide 100th

Claims (22)

  1. Dispositif de ventilation comprenant un moteur électrique (18) qui sert à entraîner une roue de ventilateur (26 ; 170), et comporte un stator intérieur (44) et un rotor extérieur (22) avec lequel ladite roue de ventilateur (26 ; 170) est en liaison d'entraînement,
    et comprenant, en outre, une plaquette (17) à circuits imprimés sur laquelle se trouvent des composants (11) pouvant être refroidis, au moins en partie, par un courant d'air (13) engendré en service par ladite roue de ventilateur (26 ; 170), caractérisé par un organe (100) de guidage d'air, associé à ladite roue de ventilateur (26 ; 170) et fixé à ladite plaquette (17) à circuits imprimés en étant séparé d'avec ledit moteur électrique (18), ce qui gouverne, en service, la génération d'un courant d'air de refroidissement (13) quittant ledit dispositif de ventilation (16) entre ladite plaquette (17) à circuits imprimés et ledit organe (100) de guidage d'air.
  2. Dispositif de ventilation selon la revendication 1, dans lequel l'organe (100) de guidage d'air présente, sur son côté tourné à l'opposé de la plaquette (17) à circuits imprimés, un orifice (117, 118) permettant de procéder, à l'issue du montage dudit organe (100) de guidage d'air sur ladite plaquette (17) à circuits imprimés, à un montage de la roue de ventilateur (26 ; 170) et du rotor extérieur (22) à travers cet orifice (117, 118) (fig. 11).
  3. Dispositif de ventilation selon la revendication 1 ou 2, dont le moteur électrique (18) comporte un arbre rotorique (34) monté dans un système de portée (36), ledit système de portée (36, 60, 66) étant conçu de manière à interdire une extraction dudit arbre rotorique (34), hors dudit système de portée, à l'issue de son montage.
  4. Dispositif de ventilation selon la revendication 3, dans lequel le système de portée (36, 60, 66) offre au moins un organe stationnaire d'arrêt (60) pouvant accomplir des excursions pivotantes, dans le sens radial, et conçu pour pénétrer dans une rainure annulaire (58) de l'arbre rotorique (34).
  5. Dispositif de ventilation selon l'une des revendications précédentes, dans lequel l'organe (100) de guidage d'air présente une région (108) formant, en association avec la plaquette (17) à circuits imprimés, une sortie d'air (127) s'évasant dans le sens radial.
  6. Dispositif de ventilation selon l'une des revendications précédentes, dans lequel l'organe (100) de guidage d'air se rétrécit par zones, à la manière d'une buse de Venturi (118, 117), à partir du côté admission d'air (126).
  7. Dispositif de ventilation selon l'une des revendications précédentes, dans lequel l'organe (100) de guidage d'air est relié à la plaquette (17) à circuits imprimés par l'intermédiaire d'au moins un organe encliquetable (122).
  8. Dispositif de ventilation selon la revendication 7, dans lequel l'organe encliquetable (122), prévu au minimum, est situé sur l'organe (100) de guidage d'air et est conçu en vue de la liaison, par encliquetage, avec un évidement associé (124) de la plaquette (17) à circuits imprimés.
  9. Dispositif de ventilation selon la revendication 7 ou 8, dans lequel l'organe encliquetable, prévu au minimum, est réalisé sous la forme d'un crochet encliquetable (122) doué d'élasticité.
  10. Dispositif de ventilation selon l'une des revendications précédentes, dans lequel des organes d'espacement (120), déterminant la taille de la sortie d'air (127), sont prévus entre l'organe (100) de guidage d'air et la plaquette (17) à circuits imprimés.
  11. Dispositif de ventilation selon la revendication 10, dans lequel les organes d'espacement (120) sont reliés à l'organe (100) de guidage d'air.
  12. Dispositif de ventilation selon la revendication 11, dans lequel les organes d'espacement (120) sont réalisés d'un seul tenant avec l'organe (100) de guidage d'air.
  13. Dispositif de ventilation selon l'une des revendications précédentes, dans lequel un système d'étanchement (106) est prévu sur l'organe (100) de guidage d'air, dans la région de l'admission d'air (126).
  14. Dispositif de ventilation selon l'une des revendications précédentes, dans lequel la roue de ventilateur se présente comme une roue (26) de ventilation axiale.
  15. Dispositif de ventilation selon la revendication 14, dans lequel la roue de ventilation axiale présente des ailettes trapézoïdales de ventilation (26) pour lesquelles l'étendue (x1), dans la région du tronçon radialement intérieur, est plus grande que l'étendue (x2) dans la région du pourtour extérieur.
  16. Dispositif de ventilation selon la revendication 15, dans lequel les ailettes de ventilation (26) présentent, en coupe radiale, une courbure (R) dont le côté convexe est tourné vers le côté admission d'air (126).
  17. Dispositif de ventilation selon la revendication 16, dans lequel le rayon (R) de la courbure est inférieur ou égal à l'étendue (x1) d'une ailette de ventilation (26) sur le côté radialement intérieur de cette dernière.
  18. Dispositif de ventilation selon l'une des revendications 1 à 13, dans lequel la roue de ventilateur se présente comme une roue (170) de ventilation radiale.
  19. Dispositif de ventilation selon la revendication 18, dans lequel la roue (170) de ventilation radiale présente des aubes (166) recourbées vers l'arrière.
  20. Dispositif de ventilation selon la revendication 19, dans lequel une aube (166) offre dans le sens radial, dans la région de son extrémité extérieure, un tracé décrivant un angle (α2) avec une tangente coupant, dans cette zone, le pourtour extérieur de la roue de ventilateur (170), lequel angle est inférieur à 90°.
  21. Dispositif de ventilation selon l'une des revendications précédentes, dans lequel les aubes (166) sont intercalées entre deux corps (172, 174) de guidage d'air donnant naissance, conjointement, à un canal arqué de guidage d'air partant d'une admission axiale et gagnant une sortie radiale.
  22. Dispositif de ventilation selon la revendication 21, dans lequel les aubes (166) se trouvent dans la région de la sortie radiale des corps (172, 174) de guidage d'air.
EP05701406A 2004-03-30 2005-02-12 Ensemble ventilateur Not-in-force EP1747378B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202004005343 2004-03-30
PCT/EP2005/001437 WO2005106254A1 (fr) 2004-03-30 2005-02-12 Ensemble ventilateur

Publications (2)

Publication Number Publication Date
EP1747378A1 EP1747378A1 (fr) 2007-01-31
EP1747378B1 true EP1747378B1 (fr) 2010-10-20

Family

ID=34625923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05701406A Not-in-force EP1747378B1 (fr) 2004-03-30 2005-02-12 Ensemble ventilateur

Country Status (5)

Country Link
US (1) US8801375B2 (fr)
EP (1) EP1747378B1 (fr)
AT (1) ATE485451T1 (fr)
DE (2) DE502005010421D1 (fr)
WO (1) WO2005106254A1 (fr)

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* Cited by examiner, † Cited by third party
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DE202008002356U1 (de) * 2008-02-19 2009-06-25 Ebm-Papst Mulfingen Gmbh & Co. Kg Kompaktlüfter
TW201037495A (en) * 2009-04-02 2010-10-16 Pegatron Corp Motherboard with fan
DE102012021253A1 (de) * 2011-11-26 2013-06-20 Ebm-Papst St. Georgen Gmbh & Co. Kg Miniatur-Radiallüfter
CN103677168A (zh) * 2012-08-31 2014-03-26 富瑞精密组件（昆山）有限公司 具有风扇的电子装置
WO2014150685A1 (fr) 2013-03-15 2014-09-25 Regal Beloit America, Inc. Ventilateur
DE102014112821A1 (de) * 2014-09-05 2016-03-10 Ebm-Papst Mulfingen Gmbh & Co. Kg Lüfter mit Leiterplattenkühlkreislauf
US20230225074A1 (en) * 2022-01-12 2023-07-13 Seagate Technology Llc Data storage devices with air movers

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Also Published As

Publication number Publication date
US20080089025A1 (en) 2008-04-17
US8801375B2 (en) 2014-08-12
DE202005004092U1 (de) 2005-05-25
WO2005106254A1 (fr) 2005-11-10
EP1747378A1 (fr) 2007-01-31
ATE485451T1 (de) 2010-11-15
DE502005010421D1 (de) 2010-12-02

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