EP3374642B1 - Pompe à liquide axiale électrique pour véhicule automobile - Google Patents

Pompe à liquide axiale électrique pour véhicule automobile Download PDF

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Publication number
EP3374642B1
EP3374642B1 EP15794532.0A EP15794532A EP3374642B1 EP 3374642 B1 EP3374642 B1 EP 3374642B1 EP 15794532 A EP15794532 A EP 15794532A EP 3374642 B1 EP3374642 B1 EP 3374642B1
Authority
EP
European Patent Office
Prior art keywords
axial
pump
rotor body
liquid
rotor
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
EP15794532.0A
Other languages
German (de)
English (en)
Other versions
EP3374642A1 (fr
Inventor
Robin Wegener
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.)
Pierburg Pump Technology GmbH
Original Assignee
Pierburg Pump Technology GmbH
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 Pierburg Pump Technology GmbH filed Critical Pierburg Pump Technology GmbH
Publication of EP3374642A1 publication Critical patent/EP3374642A1/fr
Application granted granted Critical
Publication of EP3374642B1 publication Critical patent/EP3374642B1/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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0606—Canned motor pumps
    • F04D13/0626—Details of the can
    • 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
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0606—Canned motor pumps
    • F04D13/064—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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0646—Units comprising pumps and their driving means the pump being electrically driven the hollow pump or motor shaft being the conduit for the working fluid
    • 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
    • F04D29/18—Rotors
    • F04D29/181—Axial flow rotors
    • 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
    • F04D29/528—Casings; Connections of working fluid for axial pumps especially adapted for liquid 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
    • F04D3/00—Axial-flow pumps

Definitions

  • the present invention relates to an electric motor vehicle axial liquid pump which is designed as an internal rotor.
  • the automotive electric axial fluid pump includes a pump housing that forms an axial inlet port and an axial outlet port for injecting and discharging the fluid, and an electric motor that drives an impeller.
  • an electric motor vehicle axial liquid pump in which an electric motor drives the impeller via a shaft.
  • a motor vehicle axial liquid pump is known, the electric motor being formed by the pump rotor on the one hand and a motor stator radially surrounding the latter.
  • JP 2002 138986 A discloses an axial flow fluid pump having a motor rotor with an integral pump-motor rotor formed of a plastic body in which permanent magnets for motor function are embedded and coated on the outside with a storable coating.
  • an axial liquid pump is known, the pump rotor of which also forms the motor rotor, which is surrounded by a ring-like motor stator.
  • the pump rotor is mounted in plain bearings at both of its longitudinal ends.
  • the object of the present invention is to create an electric motor vehicle axial liquid pump which is simpler in construction and therefore more economical to produce.
  • the electric motor has a can which is arranged radially inside the at least one stator coil.
  • the can separates a working space, in which the liquid to be pumped is located, from an electronics space.
  • the can can be part of a pump housing.
  • a rotor body is rotatably arranged inside the can, which has at least one blade and which conveys the liquid from an inlet opening of the electric motor vehicle axial liquid pump to an outlet opening.
  • the rotor body is designed to be permanent magnets.
  • the rotor body is thus rotor and impeller in a single component.
  • the configuration according to the present invention saves on further components, such as a shaft for driving a separate impeller.
  • the electric motor vehicle axial liquid pump can therefore be produced more quickly, easily and therefore more economically.
  • the rotor body is designed in one piece.
  • the arrangement of the rotor body and can with a liquid-filled gap between the outer peripheral surface of the rotor body and the inner peripheral surface of the can is understood as a slide bearing within the meaning of the present invention. No additional components are therefore required to rotatably mount the rotor body. As a result, further components can be saved and the electric motor vehicle axial liquid pump can be manufactured more quickly and more economically.
  • the rotor body has plastic-bonded permanent magnet particles. These permanent magnet particles are particularly preferably neodymium particles. Such rotor bodies are special can be produced inexpensively, so that the cost-effectiveness of a corresponding electric motor vehicle axial liquid pump can be increased. In addition, such a rotor body has a lower mass moment of inertia than an all-metal rotor, so that the efficiency of the electric motor vehicle axial liquid pump is improved.
  • the motor stator preferably has a plurality of external stator coils.
  • the motor stator which has the stator coils, is at least partially embedded in a plastic injection-molded body that forms the can.
  • the can is formed radially inside the stator coils.
  • the sliding bearing is preferably designed to be cylindrical and step-free over the entire axial length of the rotor body.
  • Such a plain bearing has the advantage that it is easy to produce. In addition, the assembly of such a plain bearing is simplified.
  • the rotor is designed in such a way that it has a plurality of blades and particularly preferably seven blades.
  • the number of blades can thus be chosen depending on the required hydraulic power of the pump.
  • the figure shows: an electric motor vehicle axial liquid pump in a perspective longitudinal section according to the present invention.
  • the figure shows an electric automotive axial fluid pump 10 according to the present invention, the drive motor is designed as an internal rotor.
  • the electric motor vehicle axial fluid pump 10 comprises a two-part pump housing 12 which forms an axial inlet opening 14 for admitting liquid into the electric motor vehicle axial fluid pump 10 .
  • the latter forms an axial outlet opening 16 for draining the liquid out of the electric motor vehicle axial liquid pump 10 .
  • the automotive electric axial fluid pump 10 further includes an electric motor 17 as a drive motor, which is provided in the pump housing 12 .
  • the electric motor 17 includes a motor stator 18 located inside the pump housing 12 and radially on the outside.
  • the energization of the stator coils 20 is controlled by an electronics unit 21 that is provided at an outlet end and is located radially on the outside.
  • the yoke body 19 of the motor stator 18 is embedded in a plastic injection-molded body radially inside the stator coils 20 , so that the plastic injection-molded body forms a can 22 .
  • the can 22 is in sealing contact with the pump housing 12 by means of an inlet-side ring seal 24 and an outlet-side ring seal 26 and fluidly separates a working chamber 28 , in which the liquid to be pumped is located, from an electronics chamber 30 .
  • a rotor body 32 designed as an axial impeller, of the electric motor 17 is arranged inside the can 22 , which conveys the liquid along an axis of rotation 33 of the rotor body 32 from the inlet opening 14 to the outlet opening 16 .
  • the rotor body 32 is formed from a hollow cylinder 34 and seven impeller blades 36 provided inside the hollow cylinder 34 and running in the axial direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Claims (4)

  1. Pompe électrique pour véhicule à liquide à écoulement axial (10) conçue comme une pompe à rotor internai, comprenant :
    - un boîtier de pompe (12) qui définit une ouverture d'entrée axiale (14) et une ouverture de sortie axiale (16) pour laisser entrer et évacuer le liquide,
    - un moteur électrique (17) qui est prévu dans ledit corps de pompe (12) et comprend :
    - un stator de moteur (18) avec au moins une bobine de stator externe (20),
    - un pot de séparation (22) qui est prévu radialement à l'intérieur desdites bobines de stator (20), et
    - un corps de rotor (32) configuré comme une roue à flux axial qui est disposé de manière rotative à l'intérieur dudit boîtier (22), dans lequel
    ledit corps de rotor (32) a au moins une pale (36) qui délivre le liquide de l'ouverture d'entrée (14) à l'ouverture de sortie (16) le long de l'axe de rotation (33) dudit corps de rotor (32),
    ledit corps de rotor (32) est de conception magnétique permanente et comprend des particules magnétiques permanentes et/ou des particules de ferrite,
    le corps de rotor (32) et la boîte de séparation (22) définissent ensemble un palier lisse, et
    est défiée d'une seule pièce intégrale.
  2. Pompe électrique pour véhicule à liquide à écoulement axial (10) selon la revendication 1, dans laquelle le stator du moteur (18) comprend une pluralité de bobines de stator externes (20).
  3. Pompe électrique pour véhicule à liquide à écoulement axial (10) selon l'une quelconque des revendications précédentes, dans laquelle le stator (18) du moteur est au moins partiellement encastré dans un corps en plastique moulé par injection qui définit le pot de séparation (22).
  4. Pompe électrique pour véhicule à liquide à écoulement axial (10) selon l'une quelconque des revendications précédentes, dans laquelle le corps de rotor (32) comprend une pluralité de pales (36).
EP15794532.0A 2015-11-10 2015-11-10 Pompe à liquide axiale électrique pour véhicule automobile Active EP3374642B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/076243 WO2017080591A1 (fr) 2015-11-10 2015-11-10 Pompe à liquide axiale électrique pour véhicule automobile

Publications (2)

Publication Number Publication Date
EP3374642A1 EP3374642A1 (fr) 2018-09-19
EP3374642B1 true EP3374642B1 (fr) 2022-03-02

Family

ID=54542243

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15794532.0A Active EP3374642B1 (fr) 2015-11-10 2015-11-10 Pompe à liquide axiale électrique pour véhicule automobile

Country Status (5)

Country Link
US (1) US10941781B2 (fr)
EP (1) EP3374642B1 (fr)
JP (1) JP7309361B2 (fr)
CN (1) CN108350885A (fr)
WO (1) WO2017080591A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3071283B1 (fr) * 2017-09-21 2022-07-29 Fineheart Pompe cardiaque equipee d'une turbine a pales internes
CN108105115A (zh) * 2018-01-04 2018-06-01 龚静 Dc轴流水泵
US11255339B2 (en) * 2018-08-28 2022-02-22 Honeywell International Inc. Fan structure having integrated rotor impeller, and methods of producing the same
WO2020218525A1 (fr) * 2019-04-24 2020-10-29 国立大学法人九州大学 Machine tournante à induction supraconductrice, et système de génération de force d'entraînement supraconductrice utilisant ladite machine tournante à induction supraconductrice
CN110185628B (zh) * 2019-05-30 2021-07-20 山东潍氢动力科技有限公司 多介质输送泵
CN110131180A (zh) * 2019-07-02 2019-08-16 戴胜电器有限公司 一种中空轴永磁电机泵
CN112855561A (zh) * 2019-11-27 2021-05-28 北汽福田汽车股份有限公司 贯流式水泵、车辆热管理系统及车辆
CN111946533B (zh) * 2020-08-07 2022-07-08 武汉理工大学 无轴式传动的水力发电机
CN116641900B (zh) * 2023-07-21 2024-01-02 威晟汽车科技(宁波)有限公司 一种轴流式电子水泵以及制造工艺

Family Cites Families (17)

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Publication number Priority date Publication date Assignee Title
US4185215A (en) * 1978-05-11 1980-01-22 General Scanning, Inc. Permanent magnet synchronous motor
GB2042279A (en) 1979-02-13 1980-09-17 Satchwell Controls Ltd Electric Pump
AT373743B (de) * 1981-05-21 1984-02-10 Philips Nv Selbstanlaufender zweipoliger einphasensynchronmotor
JP3207858B2 (ja) * 1992-10-19 2001-09-10 ザ クリーブランド クリニック ファウンデーション 無シールロトダイナミックポンプ
JP4390856B2 (ja) 1996-09-10 2009-12-24 レビトロニクス エルエルシー ロータリー・ポンプ及びその駆動方法
JP2002138986A (ja) 2000-11-07 2002-05-17 Ebara Corp モータポンプ
DE20202027U1 (de) 2002-02-11 2002-04-18 Webasto Thermosysteme International GmbH, 82131 Stockdorf Elektrisch angetriebene Pumpenanordnung
DE10251461A1 (de) * 2002-11-05 2004-05-13 BSH Bosch und Siemens Hausgeräte GmbH Elektrisch angetriebene Pumpe
US7052253B2 (en) 2003-05-19 2006-05-30 Advanced Bionics, Inc. Seal and bearing-free fluid pump incorporating a passively suspended self-positioning impeller
US20040241019A1 (en) * 2003-05-28 2004-12-02 Michael Goldowsky Passive non-contacting smart bearing suspension for turbo blood-pumps
US7021905B2 (en) * 2003-06-25 2006-04-04 Advanced Energy Conversion, Llc Fluid pump/generator with integrated motor and related stator and rotor and method of pumping fluid
US8419609B2 (en) * 2005-10-05 2013-04-16 Heartware Inc. Impeller for a rotary ventricular assist device
JP2008190475A (ja) 2007-02-07 2008-08-21 Jtekt Corp 軸流ポンプ
JP4909111B2 (ja) * 2007-02-14 2012-04-04 株式会社日立産機システム ファンシステム
JP2009270512A (ja) * 2008-05-08 2009-11-19 Nippo Ltd ラインポンプ
EP2730785B1 (fr) * 2012-11-07 2018-07-25 Pierburg Pump Technology GmbH Pompe à liquide électrique d'automobile
DE202012010653U1 (de) * 2012-11-07 2012-11-26 Winter.pumpen GmbH Pumpe zur Förderung von Medien

Also Published As

Publication number Publication date
US10941781B2 (en) 2021-03-09
US20180313354A1 (en) 2018-11-01
WO2017080591A1 (fr) 2017-05-18
EP3374642A1 (fr) 2018-09-19
CN108350885A (zh) 2018-07-31
JP7309361B2 (ja) 2023-07-18
JP2018534473A (ja) 2018-11-22

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