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EP1778981B1 - Dispositif pour transporter des fluides - Google Patents

Dispositif pour transporter des fluides Download PDF

Info

Publication number
EP1778981B1
EP1778981B1 EP05778381A EP05778381A EP1778981B1 EP 1778981 B1 EP1778981 B1 EP 1778981B1 EP 05778381 A EP05778381 A EP 05778381A EP 05778381 A EP05778381 A EP 05778381A EP 1778981 B1 EP1778981 B1 EP 1778981B1
Authority
EP
European Patent Office
Prior art keywords
permanent magnet
arrangement according
rotor
bearing tube
stator
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.)
Expired - Lifetime
Application number
EP05778381A
Other languages
German (de)
English (en)
Other versions
EP1778981A1 (fr
Inventor
Hansjörg BERROTH
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 EP1778981A1 publication Critical patent/EP1778981A1/fr
Application granted granted Critical
Publication of EP1778981B1 publication Critical patent/EP1778981B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04D13/00—Pumping installations or systems
    • F04D13/12—Combinations of two or more pumps
    • F04D13/14—Combinations of two or more pumps the pumps being all of centrifugal type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
    • F04D13/026—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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
    • F04D13/027—Details of the magnetic circuit
    • 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
    • F04D25/026—Units comprising pumps and their driving means with a magnetic coupling
    • 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
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • 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

  • Fig. 1 shows an enlarged sectional view of a first embodiment of an arrangement with a fluid pump 84, which is exemplified as a centrifugal pump, and an electronically commutated external rotor motor 20.
  • a fluid pump 84 which is exemplified as a centrifugal pump
  • an electronically commutated external rotor motor 20 This has an internal stator 22 of conventional design, as exemplified in Fig. 2 is shown, for example, a stator with salient poles or a claw-pole stator, and this is separated by a substantially cylindrical air gap 24 from a permanent-magnet outer rotor 26.
  • the outer rotor 26 rotates about the inner stator 22, which is why such motors 20 are referred to as external rotor motors.
  • the annular webs 80 and 74 each extend perpendicular to the axis of rotation of the outer rotor 26.
  • the bearing tube 30, the web 80, the partition 82, the web 74 and the stator 82 a meandering in cross-section part, which in the region of the driving magnet 92 as a gap pot is trained.
  • This split pot is integrally formed according to a preferred embodiment and, for example made of plastic.
  • a delivery wheel 90 is provided to form the fluid pump 84.
  • the feed wheel 90 is arranged on a pump shaft 106, which is formed in axial extension to the shaft 46 of the outer rotor 26. Both waves are liquid-tight separated from each other by the liquid-tight end 60 of the inner recess of the bearing tube 30.
  • Fig. 2 shows an exploded view of the arrangement Fig. 1 in which the cover 88 of the pump housing 86 is not shown.
  • the one-piece, in cross-section meandering design of the bearing tube 30, the web 80, the partition wall 82, the web 74 and the stator 34 is clearly visible.
  • the construction of the inner stator 22 and the one-piece design of the feed wheel 90 with the driving magnet 92 illustrates.
  • the magnetic coupling is formed by a coupling of the axial magnetic fields of these permanent magnets. Therefore, this magnetic coupling is hereinafter referred to for clarity as axial magnetic coupling.
  • a permanent magnet with a strong axial magnetic field is preferably used for the entrainment magnet 92, e.g. a rare earth magnet.
  • Fig. 4 shows a longitudinal section through the arrangement Fig. 3 in which the formation of the outer rotor 26 with the rotor bell 40 and the rotor magnet 36 is clearly visible.
  • Fig. 5 shows an exploded view of the arrangement Fig. 5 in which, in particular, the one-piece design of the containment shell and the aerodynamic design of the cylindrical portion 94 can be seen.
  • Such an arrangement may e.g. be used to aspirate and pump out in a fountain water or to pump blood in a heart-lung machine, or to transport in a closed cooling circuit, a cooling liquid, the feed wheel 90 then has the function of a circulation pump.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Claims (19)

  1. Dispositif pour transporter des fluides, lequel présente :
    un moteur à induit extérieur à commutation électronique (20) comprenant un rotor (26) et
    un stator (22) ;
    un porte-stator (34) sur lequel le stator (22) est disposé ;
    un tube palier (30) dans lequel le rotor (26) est monté à rotation par rapport au stator (22) et lequel est disposé au moins partiellement radialement à l'intérieur du porte-stator (34) et séparé de celui-ci par un espace annulaire ;
    un premier aimant permanent (67) qui est relié au rotor (26) et pénètre dans l'espace annulaire ;
    une pompe à fluide (84) comportant une roue de transport (90) disposée à rotation à l'intérieur d'un corps de pompe (86), laquelle est reliée à un deuxième aimant permanent (92) ;
    une paroi de séparation (82) étanche aux fluides mais transparente aux champs magnétiques qui est disposée entre le premier aimant permanent (67) et le deuxième aimant permanent (92) ;
    le premier aimant permanent (67) formant, par coopération avec le deuxième aimant permanent (92), un accouplement magnétique pour la pompe à fluide (84), lequel entraîne lors de la rotation du rotor (26) une rotation de la roue de transport (90) de la pompe à fluide (84).
  2. Dispositif selon la revendication 1, dans lequel le premier aimant permanent (67) est disposé entre le tube palier (30) et la paroi de séparation (82), et le deuxième aimant permanent (92) entre la paroi de séparation et le porte-stator (34).
  3. Dispositif selon l'une des revendications précédentes, dans lequel le premier aimant permanent (67) et le deuxième aimant permanent (92) sont annulaires.
  4. Dispositif selon l'une des revendications précédentes, dans lequel le premier aimant permanent (67) présente un matériau magnétique à liant plastique ou des aimants permanents enrobés dans une matière plastique.
  5. Dispositif selon la revendication 4, dans lequel le premier aimant permanent (67) est réalisé par injection de matière plastique.
  6. Dispositif selon l'une des revendications précédentes, dans lequel le tube palier (30), la paroi de séparation (82) et le porte-stator (34) sont réalisés dans un matériau transparent aux champs magnétiques.
  7. Dispositif selon l'une des revendications précédentes, dans lequel une extrémité du tube palier (30) est reliée de manière étanche aux liquides à une extrémité de la paroi de séparation (82) par une branche annulaire (80).
  8. Dispositif selon la revendication 7, dans lequel le corps de pompe (86) est relié de manière étanche aux liquides à l'autre extrémité du tube palier (30) et à l'autre extrémité de la paroi de séparation (82), et conformé en pot d'entrefer dans la zone du deuxième aimant permanent (92).
  9. Dispositif selon la revendication 8, dans lequel le pot d'entrefer est réalisé dans un matériau transparent aux champs magnétiques, en particulier dans une matière plastique.
  10. Dispositif selon l'une des revendications précédentes, dans lequel le tube palier (30), la paroi de séparation (82) et le porte-stator (34) sont réalisés sous la forme d'une pièce d'un seul tenant, en particulier sous la forme d'une pièce méandriforme en coupe transversale, dans laquelle une extrémité du tube palier est reliée à une extrémité de la paroi de séparation et l'autre extrémité de la paroi de séparation reliée à une extrémité du porte-stator.
  11. Dispositif selon la revendication 10, dans lequel la pièce d'un seul tenant est réalisée dans un matériau transparent aux champs magnétiques.
  12. Dispositif selon la revendication 10 ou 11, dans lequel le corps de pompe (86) est relié de manière étanche aux liquides à l'autre extrémité du tube palier (30) et à l'autre extrémité de la paroi de séparation (82), et conformé en pot d'entrefer dans la zone du deuxième aimant permanent (92).
  13. Dispositif selon la revendication 12, dans lequel une extrémité du porte-stator (34) est reliée de manière rigide au pot d'entrefer.
  14. Dispositif selon l'une des revendications précédentes, dans lequel le moteur à induit extérieur à commutation électronique (20) présente une cloche de rotor (40) à l'intérieur de laquelle un aimant de rotor (36) et le premier aimant permanent (67) sont disposés.
  15. Dispositif selon la revendication 14, dans lequel des ailettes de ventilateur (64) sont disposées sur la cloche de rotor (40).
  16. Dispositif selon la revendication 14 ou 15, dans lequel l'aimant de rotor (36) présente un matériau magnétique lié par une matière plastique ou analogue.
  17. Dispositif selon l'une des revendications 14 à 16, dans lequel l'aimant de rotor (36) est formé avec plusieurs pôles et en particulier huit pôles.
  18. Dispositif selon l'une des revendications précédentes, dans lequel la roue de transport (90) de la pompe à fluide est reliée à un arbre de pompe (106) fixe disposé dans le corps de pompe et, en fonctionnement, tourne autour de cet arbre de pompe.
  19. Dispositif selon la revendication 18, dans lequel l'arbre de pompe (106) est disposé dans le prolongement axial d'un arbre (46) qui est relié au rotor (26) et monté à rotation dans le tube palier (30), les deux arbres étant séparés l'un de l'autre de manière étanche aux liquides.
EP05778381A 2004-10-07 2005-09-02 Dispositif pour transporter des fluides Expired - Lifetime EP1778981B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202004015933 2004-10-07
PCT/EP2005/009443 WO2006039965A1 (fr) 2004-10-07 2005-09-02 Dispositif pour transporter des fluides

Publications (2)

Publication Number Publication Date
EP1778981A1 EP1778981A1 (fr) 2007-05-02
EP1778981B1 true EP1778981B1 (fr) 2008-11-05

Family

ID=35262153

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05778381A Expired - Lifetime EP1778981B1 (fr) 2004-10-07 2005-09-02 Dispositif pour transporter des fluides

Country Status (6)

Country Link
US (1) US7780422B2 (fr)
EP (1) EP1778981B1 (fr)
AT (1) ATE413532T1 (fr)
DE (1) DE502005005904D1 (fr)
ES (1) ES2315908T3 (fr)
WO (1) WO2006039965A1 (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1794459A1 (fr) * 2004-09-10 2007-06-13 ebm-papst St. Georgen GmbH & Co. KG Dispositif de circulation de fluides
WO2008119404A1 (fr) * 2007-03-31 2008-10-09 Ebm-Papst St. Georgen Gmbh & Co. Kg Dispositif de transport de fluides
US8772993B2 (en) * 2007-10-31 2014-07-08 Ebm-Papst St. Georgen Gmbh & Co. Kg Electric motor with adhesively bonded ring magnet
US8092154B2 (en) * 2007-12-18 2012-01-10 Minebea Co., Ltd. Integrated fan with pump and heat exchanger cooling capability
US7466053B1 (en) * 2008-04-10 2008-12-16 Vladimir Radev Dual-rotor electric traction motor
CN101550941B (zh) * 2009-03-23 2015-05-20 胡道明 水下电动泵
JP4931980B2 (ja) * 2009-10-13 2012-05-16 三菱電機株式会社 水循環ポンプ及びヒートポンプ装置
RU2538101C2 (ru) * 2010-09-03 2015-01-10 Винпро Ко., Лтд. Дискообразный инверсионный генератор и ветроэнергетическое генерирующее оборудование, включающее его
DE112012001476A5 (de) * 2011-03-31 2013-12-24 Ixetic Bad Homburg Gmbh Antriebseinheit für eine Unterölpumpe und Pumpe
DE102011075097A1 (de) * 2011-05-02 2012-11-08 Krones Aktiengesellschaft Vorrichtung zum Bewegen eines Fluids
TWI449841B (zh) * 2011-10-18 2014-08-21 Delta Electronics Inc 被動式傳動馬達及被動式風扇結構
TWI495793B (zh) * 2011-12-09 2015-08-11 Delta Electronics Inc 循環扇及其扇葉組
CN105051371B (zh) * 2013-03-20 2018-03-27 麦格纳动力系有限公司 串联电动泵
US9273792B2 (en) * 2013-04-25 2016-03-01 Kefico Corporation Solenoid valve with magnet filter
CN107454922B (zh) 2015-04-10 2020-11-03 开利公司 集成风扇换热器
WO2017024203A1 (fr) * 2015-08-05 2017-02-09 Wade Spicer Pompe sans joint d'étanchéité à entraînement magnétique
US10190698B2 (en) 2017-02-07 2019-01-29 Marotta Controls, Inc. Solenoid valves for high vibration environments
GB201704579D0 (en) * 2017-03-23 2017-05-10 Rolls Royce Plc An electrical machine
GB2590627B (en) * 2019-12-20 2022-03-30 Dyson Technology Ltd A fan drive assembly
US11802566B2 (en) * 2020-02-28 2023-10-31 Roger Hayes Pump system for liquid transport tank
US11824427B2 (en) * 2020-05-11 2023-11-21 Zi Yi Electrical Engineering Co., Ltd Canned motor device
US20240397663A1 (en) * 2023-05-23 2024-11-28 Microsoft Technology Licensing, Llc Systems and methods for magnetic pumping in thermal management devices

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US6600649B1 (en) 2002-05-24 2003-07-29 Mei-Nan Tsai Heat dissipating device
EP1543244A1 (fr) 2002-09-28 2005-06-22 ebm-papst St. Georgen GmbH & Co. KG Dispositif et procede de dissipation de la chaleur d'un composant a refroidir
EP1598087B1 (fr) * 2004-03-24 2010-02-03 Terumo Kabushiki Kaisha pompe de sang avec palier hydrodynamique
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Also Published As

Publication number Publication date
ES2315908T3 (es) 2009-04-01
DE502005005904D1 (de) 2008-12-18
ATE413532T1 (de) 2008-11-15
US7780422B2 (en) 2010-08-24
EP1778981A1 (fr) 2007-05-02
US20080038126A1 (en) 2008-02-14
WO2006039965A1 (fr) 2006-04-20

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