WO2011030849A1 - Unité de pompe électrique - Google Patents

Unité de pompe électrique Download PDF

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Publication number
WO2011030849A1
WO2011030849A1 PCT/JP2010/065611 JP2010065611W WO2011030849A1 WO 2011030849 A1 WO2011030849 A1 WO 2011030849A1 JP 2010065611 W JP2010065611 W JP 2010065611W WO 2011030849 A1 WO2011030849 A1 WO 2011030849A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
rotor
motor stator
motor
permanent magnet
Prior art date
Application number
PCT/JP2010/065611
Other languages
English (en)
Japanese (ja)
Inventor
阪田　隆敏
Original Assignee
株式会社ジェイテクト
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 株式会社ジェイテクト filed Critical 株式会社ジェイテクト
Priority to CN2010800400131A priority Critical patent/CN102483059A/zh
Priority to US13/390,420 priority patent/US20120164009A1/en
Priority to EP10815443.6A priority patent/EP2476904A4/fr
Publication of WO2011030849A1 publication Critical patent/WO2011030849A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084—Toothed wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/008—Prime movers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/008—Enclosed motor pump units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/40—Electric motor

Definitions

  • This invention relates to an electric pump unit used as a hydraulic pump for supplying hydraulic pressure to a transmission (transmission) of an automobile, for example.
  • the electric pump unit for automobiles is mounted in a limited space of the vehicle body, it is required to be compact, and also required to be light and reduce costs.
  • an electric pump unit in which a pump, an electric motor for driving a pump, and a controller for the motor are integrally incorporated in a common unit housing has been proposed (for example, see Patent Document 1).
  • One object of the present invention is to provide an electric pump unit that can be made compact and can be reduced in weight and cost.
  • An electric pump unit is provided with a fluid inside a motor stator that is fixedly provided on the inner periphery of a unit housing made of synthetic resin and only a part of the inner periphery is exposed in the unit housing.
  • a pump chamber having a suction port and a fluid discharge port is formed, and the pump outer rotor is arranged inside the motor stator in the pump chamber so as to be able to rotate while guiding the inner periphery of the motor stator.
  • a pump inner rotor rotatably supported by the unit housing is arranged on the inner side, and a permanent magnet is held by a synthetic resin permanent magnet holding part provided by integral molding on the outer periphery of the pump outer rotor to constitute a motor rotor.
  • the axial dimension can be reduced, and further downsizing and reduction in weight and cost are possible.
  • FIG. 1 is a longitudinal sectional view of an electric pump unit.
  • the left side of FIG. 1 is the front and the right side is the rear.
  • the electric pump unit is a unit housing (1) made of synthetic resin in which a pump and an electric motor for driving the pump are integrated.
  • the pump is an internal gear pump
  • the motor is a DC brushless sensorless motor having a three-phase winding.
  • a motor controller (not shown) is provided separately from the electric pump unit.
  • the eaves housing (1) includes a rear housing body (2) and a front lid (3).
  • the housing body (2) has a cylindrical shape in which the rear end of the cylindrical portion (2a) is closed by the rear wall (2b) and the front portion is opened.
  • an outer diameter smaller than the inner diameter of the cylindrical portion (2a) is formed integrally with the cylindrical portion (2a) and a short cylindrical portion (2c).
  • the lid (3) has a disk shape, and a short cylindrical portion (3a) concentric with the short cylindrical portion (2c) of the housing body (2) and having the same outer diameter is formed at the center of the rear surface (inner surface) of the lid (3). It is integrally formed.
  • the lid (3) is fixed to the front end surface of the cylindrical portion (2a) of the housing body (2) via an O-ring (4) at the outer peripheral portion thereof.
  • a connector is provided at an appropriate location on the outer surface of the housing body (2).
  • a motor stator (5) is fixedly provided on the inner periphery of the cylindrical part (2a) of the housing body (2).
  • the portion including the inner peripheral surface of the core (6) made of laminated steel plate is covered with an insulator (synthetic resin insulator) (7), and the coil (8) is wound around the insulator (7). It is attached.
  • the coil (8) is connected to a connector (not shown).
  • the stator (5) is integrally molded on the inner periphery of the cylindrical part (2a), and the front part of the insulator (7) and the coil (8) is the cylindrical part (2a) of the housing body (2).
  • the inward flange portion (2d) formed integrally with the front end is covered, and the rear portions of the insulator (7) and the coil (8) are covered with the rear wall (2b) of the housing body (2).
  • the outer periphery of the insulator (7) part before and after the core (6) is closely attached to the inner periphery of the cylindrical part (2a), and the inner periphery of the insulator (7) is the short cylindrical part (3a) of the lid (3)
  • the inner periphery of the insulator (7) inside the core (6) are exposed in the housing (2).
  • a pump chamber (9) is formed between the short cylindrical portions (2c) (3a) inside the stator (5).
  • a pump outer rotor (outer gear) (10) is arranged on the inner side of the stator (5) in the pump chamber (9) so as to be able to rotate while guiding the inner periphery of the stator (5).
  • a pump inner rotor (inner gear) (11) that is rotatably supported by the housing (2) and meshes with the outer rotor (10) is disposed.
  • the outer rotor (10) is made of synthetic resin, teeth (10a) are formed on the inner periphery of the outer rotor (10), and a motor rotor (14) having a permanent magnet (13) is provided on the outer periphery.
  • a permanent magnet holding projection (15b) extending from the front surface of the flange (15a) to the front end of the outer rotor (10).
  • the outer periphery of the ridge (15b) is the same cylindrical surface as the ridge (15a), and the outer diameters of both are the same.
  • the ridges (15b) have a V-shaped cross-sectional shape, and the interval between the adjacent ridges (15b) gradually decreases toward the outside in the radial direction.
  • the width in the circumferential direction of the permanent magnet (13) is also gradually decreased toward the outer side in the radial direction, and the permanent magnet (12) is inserted from the front side and held between the adjacent protrusions (15b). ing.
  • An electric motor is constituted by the stator (5) and the rotor (14) of the outer rotor (10), and a pump is constituted by the outer rotor (10) and the inner rotor (11).
  • the motor controller is arranged separately from the electric pump unit, and is connected to the motor via a connector (not shown) of the housing body (2).
  • the pump since the pump is arranged inside the motor stator (5) constituting the electric motor, the dimension in the axial direction is small, and further miniaturization is possible. Further, since the motor rotor (14) is integrated with the outer periphery of the pump outer rotor (10), the number of parts is small, and further weight reduction and cost reduction are possible. Since the outer rotor (10) integrated with the motor rotor (14) rotates with the inner periphery of the motor stator (5) as a guide, the permanent magnet (12) of the motor stator (5) and the motor rotor (14) ) In the radial direction can be properly maintained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)

Abstract

La présente invention concerne une unité de pompe électrique compacte et réduite en poids et en coût. L’unité de pompe électrique est munie d’un corps de pompe (9) qui présente une ouverture d’aspiration d’huile (18) et une ouverture d’évacuation d’huile (19) et est formée dans un stator de moteur (18), et le stator de moteur (5) est agencé de manière fixe à la périphérie intérieure d’un boîtier en résine synthétique (1) et est configuré de sorte que seule une partie du stator de moteur, ladite partie étant située sur le côté périphérique intérieur, soit exposée à l’intérieur du boîtier de l’unité (1). Un rotor de pompe extérieur (10) est disposé dans le stator de moteur (5), qui est situé dans le corps de pompe (8), pour être apte à être entraîné en rotation tout en étant guidé par la périphérie intérieure du stator de moteur (5). Un rotor intérieur de pompe (11) en support rotatif sur le boîtier de l’unité (1) est disposé dans le rotor de pompe extérieur (10). Un rotor de moteur (14) est formé grâce au maintien d’aimants permanents (13) par des sections de maintien d’aimants permanents (15) qui sont constituées de résine et sont moulées intégralement avec la périphérie extérieure du rotor de pompe extérieur (10).
PCT/JP2010/065611 2009-09-11 2010-09-10 Unité de pompe électrique WO2011030849A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2010800400131A CN102483059A (zh) 2009-09-11 2010-09-10 电动泵单元
US13/390,420 US20120164009A1 (en) 2009-09-11 2010-09-10 Electric pump unit
EP10815443.6A EP2476904A4 (fr) 2009-09-11 2010-09-10 Unité de pompe électrique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009-209992 2009-09-11
JP2009209992A JP2011058441A (ja) 2009-09-11 2009-09-11 電動ポンプユニット

Publications (1)

Publication Number Publication Date
WO2011030849A1 true WO2011030849A1 (fr) 2011-03-17

Family

ID=43732517

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2010/065611 WO2011030849A1 (fr) 2009-09-11 2010-09-10 Unité de pompe électrique

Country Status (5)

Country Link
US (1) US20120164009A1 (fr)
EP (1) EP2476904A4 (fr)
JP (1) JP2011058441A (fr)
CN (1) CN102483059A (fr)
WO (1) WO2011030849A1 (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011077094A1 (de) * 2011-06-07 2012-12-13 Mahle International Gmbh Pendelschieberpumpe
FR2983248B1 (fr) * 2011-11-29 2015-04-03 Turbomeca Turbomachine comportant une pompe d'alimentation en carburant a activation electrique et procede d'alimentation en carburant d'une turbomachine
JP6081824B2 (ja) * 2013-03-06 2017-02-15 アスモ株式会社 電動ポンプ
JP2014173443A (ja) * 2013-03-06 2014-09-22 Asmo Co Ltd 電動ポンプ
EP3032722B1 (fr) * 2014-12-11 2020-02-19 Johnson Electric International AG Rotor, moteur, pompe et appareil de nettoyage
ITUB20155909A1 (it) * 2015-11-25 2017-05-25 Bosch Gmbh Robert Pompa ad ingranaggi
IT201600125212A1 (it) * 2016-12-12 2018-06-12 Bosch Gmbh Robert Pompa elettrica a ingranaggi
IT201600129613A1 (it) * 2016-12-21 2018-06-21 Bosch Gmbh Robert Pompa elettrica a ingranaggi
IT201600130203A1 (it) * 2016-12-22 2018-06-22 Bosch Gmbh Robert Pompa elettrica a ingranaggi
BE1025347B1 (nl) * 2017-06-28 2019-02-05 Atlas Copco Airpower Naamloze Vennootschap Cilindrisch symmetrische volumetrische machine
BE1025570B1 (nl) * 2017-09-21 2019-04-17 Atlas Copco Airpower Naamloze Vennootschap Cilindrisch symmetrische volumetrische machine
WO2019115168A1 (fr) * 2017-12-13 2019-06-20 Robert Bosch Gmbh Unité de pompage pour l'alimentation en carburant, de préférence de carburant diesel, d'un moteur à combustion interne
DE102017223715A1 (de) 2017-12-22 2019-06-27 Magna Powertrain Bad Homburg GmbH Gerotorpumpe und Verfahren zur Herstellung einer solchen
US10927833B2 (en) * 2018-05-15 2021-02-23 Schaeffler Technologies AG & Co. KG Integrated eccentric motor and pump assembly
DE102019200560A1 (de) 2018-09-14 2020-03-19 Magna Powertrain Bad Homburg GmbH Gerotorpumpe und Verfahren zur Herstellung eines Druckausgleichs in einer Gerotorpumpe
KR20210062410A (ko) * 2019-11-21 2021-05-31 엘지이노텍 주식회사 펌프
KR20210062788A (ko) * 2019-11-21 2021-06-01 엘지이노텍 주식회사 펌프
KR20210062411A (ko) * 2019-11-21 2021-05-31 엘지이노텍 주식회사 펌프
KR20210062787A (ko) * 2019-11-21 2021-06-01 엘지이노텍 주식회사 펌프
SI3957823T1 (sl) * 2020-08-20 2024-05-31 Gkn Sinter Metals Engineering Gmbh Ureditev črpalke
KR20230007094A (ko) * 2021-07-05 2023-01-12 엘지이노텍 주식회사 펌프
DE102022208141A1 (de) * 2022-08-04 2024-02-15 Vitesco Technologies GmbH Pumpe, insbesondere Getriebeölpumpe

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0227181A (ja) * 1988-07-14 1990-01-29 Tokyo Tatsuno Co Ltd 超電導ロータリーポンプ
JPH11210642A (ja) * 1998-01-20 1999-08-03 Zexel:Kk 内接ギアポンプ
JP2003129966A (ja) * 2001-10-24 2003-05-08 Aisin Seiki Co Ltd 電動オイルポンプ
JP2004232578A (ja) * 2003-01-31 2004-08-19 Koyo Seiko Co Ltd 電動トロコイドポンプ
JP2005207248A (ja) * 2004-01-20 2005-08-04 Koyo Seiko Co Ltd 電動ポンプユニット
JP2005318765A (ja) * 2004-04-30 2005-11-10 Mitsui High Tec Inc 回転子鉄心および回転子
WO2007072622A1 (fr) * 2005-12-21 2007-06-28 Honda Motor Co., Ltd. Moteur électrique
JP2008215088A (ja) 2007-02-28 2008-09-18 Jtekt Corp 電動ポンプユニット及び電動オイルポンプ
JP2008245414A (ja) * 2007-03-27 2008-10-09 Matsushita Electric Works Ltd ブラシレスモータ

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3631808B2 (ja) * 1995-06-20 2005-03-23 本田技研工業株式会社 回転機用ロータ、そのロータの製造方法および磁石ユニット
DE29913367U1 (de) * 1999-07-30 1999-12-09 Pumpenfabrik Ernst Scherzinger GmbH & Co. KG, 78120 Furtwangen Innen-Zahnradpumpe, deren Hohlrad das Innere eines Rotors eines Elektromotors ist
JP4566336B2 (ja) * 2000-05-31 2010-10-20 株式会社ソディック 同期機ロータ
JP2005273648A (ja) * 2004-02-23 2005-10-06 Aisin Seiki Co Ltd 電動ポンプ
JP4237731B2 (ja) * 2005-05-31 2009-03-11 株式会社日立製作所 モータ一体型内接歯車式ポンプ及びその製造方法並びに電子機器
JP5141956B2 (ja) * 2007-12-25 2013-02-13 アイシン精機株式会社 電動ポンプ

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0227181A (ja) * 1988-07-14 1990-01-29 Tokyo Tatsuno Co Ltd 超電導ロータリーポンプ
JPH11210642A (ja) * 1998-01-20 1999-08-03 Zexel:Kk 内接ギアポンプ
JP2003129966A (ja) * 2001-10-24 2003-05-08 Aisin Seiki Co Ltd 電動オイルポンプ
JP2004232578A (ja) * 2003-01-31 2004-08-19 Koyo Seiko Co Ltd 電動トロコイドポンプ
JP2005207248A (ja) * 2004-01-20 2005-08-04 Koyo Seiko Co Ltd 電動ポンプユニット
JP2005318765A (ja) * 2004-04-30 2005-11-10 Mitsui High Tec Inc 回転子鉄心および回転子
WO2007072622A1 (fr) * 2005-12-21 2007-06-28 Honda Motor Co., Ltd. Moteur électrique
JP2008215088A (ja) 2007-02-28 2008-09-18 Jtekt Corp 電動ポンプユニット及び電動オイルポンプ
JP2008245414A (ja) * 2007-03-27 2008-10-09 Matsushita Electric Works Ltd ブラシレスモータ

Also Published As

Publication number Publication date
EP2476904A1 (fr) 2012-07-18
JP2011058441A (ja) 2011-03-24
CN102483059A (zh) 2012-05-30
EP2476904A4 (fr) 2014-04-30
US20120164009A1 (en) 2012-06-28

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