EP1088385A1 - Moteur electrique a commande electronique destine a une utilisation dans un environnement presentant un solvant - Google Patents

Moteur electrique a commande electronique destine a une utilisation dans un environnement presentant un solvant

Info

Publication number
EP1088385A1
EP1088385A1 EP00922532A EP00922532A EP1088385A1 EP 1088385 A1 EP1088385 A1 EP 1088385A1 EP 00922532 A EP00922532 A EP 00922532A EP 00922532 A EP00922532 A EP 00922532A EP 1088385 A1 EP1088385 A1 EP 1088385A1
Authority
EP
European Patent Office
Prior art keywords
electric motor
rotor
motor according
electrical conductor
position sensor
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.)
Withdrawn
Application number
EP00922532A
Other languages
German (de)
English (en)
Inventor
Frank Kuehnel
Wolfgang Warnke
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.)
Siemens AG
Original Assignee
Mannesmann VDO AG
Siemens AG
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 Mannesmann VDO AG, Siemens AG filed Critical Mannesmann VDO AG
Publication of EP1088385A1 publication Critical patent/EP1088385A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/12—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using detecting coils using the machine windings as detecting coil
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/132—Submersible electric motors

Definitions

  • Electronically controlled electric motor intended for use in an environment containing solvents
  • the invention relates to an electronically controlled electric motor intended for use in a solvent-containing environment and having at least one rotor carrying permanent magnets and a stator having coils, in which position sensors are arranged in the stator for determining a commutation time.
  • Such electric motors are often referred to as electronically commutated direct current motors and are used, for example, in fuel tanks to drive a fuel pump. If the coils are arranged in the stator, the electric motor does not require carbon brushes for the transmission of electrical energy.
  • the electric motor is characterized as an inexpensive drive with a long service life in the lower and medium power range.
  • Hall sensors are generally used as position sensors.
  • the Hall sensors have semiconductor chips with connection contacts.
  • the semiconductor chips and the connection contacts are usually coated with plastic.
  • a disadvantage of the known position sensors is that the semiconductor wafers are constructed in a very complex manner due to their sheathing. Furthermore, the semiconductor chips, solder joints of the connection contacts are not resistant to solvents in the long run.
  • Plastic sheathing also does not offer adequate protection against the diffusion of solvents, so that despite the sheathing, the semiconductor chips are attacked by the solvents. As a result of this damage to the semiconductor wafers, the position of the rotor can no longer be reliably detected with the position sensor.
  • the invention is based on the problem of designing an electric motor of the type mentioned at the outset in such a way that it can be produced as inexpensively as possible and has a very high resistance to solvents.
  • the position sensors have an electrical conductor which generates a signal when the magnetic field is movable, and in that the electrical conductor is made in one piece with connecting lines.
  • the position sensor of the electric motor according to the invention does not require a sheathing, since an electrical conductor, such as a copper wire, is not attacked by solvents.
  • an electrical conductor such as a copper wire
  • particularly inexpensive position sensors can be used in the electric motor according to the invention. Due to the one-piece manufacture of the electrical conductor with the connecting lines, the position sensor can also be installed very easily and does not require soldering points which are not solvent-resistant. The electric motor according to the invention can thus be manufactured particularly cost-effectively and has a very high resistance to the solvents.
  • Another advantage of this design is that the position sensor can be arranged very close to the magnet of the rotor, so that the position of the rotor can be determined particularly precisely.
  • connection lines of the position sensor could, for example, be screwed to further lines in order to avoid non-solvent-resistant solder joints.
  • it helps if the connecting lines of the position sensor are led to a solvent-free space.
  • the connecting lines can thus be led to outside of the fuel tank.
  • the position of the rotor can be determined particularly precisely if the electrical conductor is designed as a coil.
  • the coil can be arranged between the winding strands of the stator.
  • the position of the rotor can be easily determined according to another advantageous development of the invention if the electrical conductor is designed as a pulse wire arranged transversely to the movement of the magnetic poles of the rotor.
  • the position sensor can be arranged at a position distant from the permanent magnets of the rotor if the rotor has position magnets arranged opposite to the position sensor and situated away from its permanent magnets. This also prevents the signals from the position sensor from being falsified by electrical currents flowing in the coils of the stator. Furthermore, more position magnets can be arranged in the electric motor according to the invention than the rotor has permanent magnets. This enables the position of the rotor to be determined particularly precisely.
  • a disk is arranged, which is divided into several areas, the areas being magnetized differently.
  • the invention allows numerous embodiments. To further clarify its basic principle, four of them are shown in the drawing and are described below. This shows in
  • FIG. 1 shows a schematic illustration of an electric motor according to the invention
  • FIGS 2 to 4 further embodiments of the electric motor according to the invention in schematic representations.
  • FIG. 1 schematically shows an electric motor with a housing 1 and a cylindrical rotor 3 arranged on a rotatably mounted shaft 2.
  • the rotor 3 has several permanent magnets 4 of the rotor 3 opposite coils 5.
  • the coils 5 are fastened in the housing 1.
  • Position sensors 6 for detecting the position of the rotor 3 are arranged between the coils 5.
  • the electrical current supplied to the coils 5 is regulated on the basis of the signals from the position sensors 6.
  • the electric motor is often referred to as an electronically commutated DC motor.
  • the position sensors 6 each have electrical conductors 8 made in one piece with connecting lines 7 which extend outside the housing 1.
  • the connecting lines 7 are connected to connecting contacts 9 on the outside of the housing 1. Control electronics (not shown) of the electric motor can be connected to these connection contacts 9.
  • FIG. 2 schematically shows a further embodiment of the electric motor, in which the position sensors 6 have electrical conductors 10 designed as pulse wires.
  • the electrical conductors 10 are arranged parallel to the outer surface of the rotor 3 and are made in one piece with connecting lines 11. As with the electric motor from FIG. 1, the position sensors 6 are arranged between the coils 5.
  • FIG. 3 schematically shows a further embodiment of the electric motor, in which a disk 13 having position magnets 12 is attached to the shaft 2 at a distance from the permanent magnets 4 of the rotor 3.
  • the position sensors 6 face the disk 13 with the position magnets 12 and are therefore in a position remote from the coils 5.
  • the position sensors 6 have electrical conductors 14 wound into a coil.
  • FIG. 4 schematically shows a further embodiment of the electric motor, in which the position sensors 6 of the disk 13 with the position magnets 12 have opposite electrical conductors 15 which are designed as pulse wires.

Abstract

L'invention concerne un moteur électrique à commande électronique ayant comme capteurs de position (6) des bobines (5) disposées dans un stator (2) et opposées aux aimants permanents (4) d'un rotor (3). Les bobines (5) sont réalisées d'une seule pièce avec des câbles de raccordement (7). Ce moteur électrique peut être utilisé dans un environnement présentant un solvant. De plus, sa production est particulièrement économique.
EP00922532A 1999-04-13 2000-03-22 Moteur electrique a commande electronique destine a une utilisation dans un environnement presentant un solvant Withdrawn EP1088385A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19916528A DE19916528A1 (de) 1999-04-13 1999-04-13 Für den Einsatz in einer Lösungsmittel aufweisenden Umgebung vorgesehener, elektronisch gesteuerter Elektromotor
DE19916528 1999-04-13
PCT/EP2000/002509 WO2000062405A1 (fr) 1999-04-13 2000-03-22 Moteur electrique a commande electronique destine a une utilisation dans un environnement presentant un solvant

Publications (1)

Publication Number Publication Date
EP1088385A1 true EP1088385A1 (fr) 2001-04-04

Family

ID=7904322

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00922532A Withdrawn EP1088385A1 (fr) 1999-04-13 2000-03-22 Moteur electrique a commande electronique destine a une utilisation dans un environnement presentant un solvant

Country Status (9)

Country Link
US (1) US6759773B1 (fr)
EP (1) EP1088385A1 (fr)
JP (1) JP2002542750A (fr)
KR (1) KR20010052822A (fr)
CN (1) CN1197224C (fr)
AU (1) AU760607B2 (fr)
BR (1) BR0006027A (fr)
DE (1) DE19916528A1 (fr)
WO (1) WO2000062405A1 (fr)

Family Cites Families (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2545422A (en) * 1945-02-13 1951-03-13 Byron Jackson Co Motor pump
BE638291A (fr) * 1962-10-10
US3764233A (en) * 1971-11-15 1973-10-09 Us Navy Submersible motor-pump assembly
US3770635A (en) * 1972-01-24 1973-11-06 Minnesota Mining & Mfg Submersible motor seal fluid and section
US3761750A (en) * 1972-01-24 1973-09-25 Red Jacket Manuf Co Submersible electric motor
JPS51129605A (en) * 1975-04-04 1976-11-11 Tasuku Eng Kk No-commutator d-c motor
DE2527041C3 (de) * 1975-06-18 1979-07-05 Danfoss A/S, Nordborg (Daenemark) Selbständig anlaufender, kollektorloser Gleichstrommotor
DE2654755A1 (de) * 1976-12-03 1978-06-08 Bosch Gmbh Robert Induktiver impulsgeber mit drehzahlunabhaengiger impulsamplitude
CA1103298A (fr) * 1977-02-25 1981-06-16 Masami Uchiyama Moteur electrique avec detecteurs distincts de position des aimants du rotor et de vitesse du moteur
JPS5445712A (en) * 1977-09-19 1979-04-11 Hitachi Ltd Motor
US5361010A (en) * 1980-07-09 1994-11-01 Papst Licensing Gmbh Tachogenerator for speed control of electric motors
US4473259A (en) * 1980-12-24 1984-09-25 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Linear magnetic bearings
US4607181A (en) * 1984-12-06 1986-08-19 Hayward Tyler Inc. High temperature submersible electric motor
US4806813A (en) * 1986-03-20 1989-02-21 Canon Kabushiki Kaisha Motor
JPS62268346A (ja) * 1986-05-13 1987-11-20 Matsushita Electric Ind Co Ltd ブラシレスモ−タ
JPH07112335B2 (ja) * 1986-07-11 1995-11-29 株式会社豊田自動織機製作所 圧縮機における回転検出装置
US5325006A (en) * 1990-04-27 1994-06-28 Hitachi, Ltd. Sealed magnetic fluid bearing for polygon mirror drive motor
US5514923A (en) * 1990-05-03 1996-05-07 Gossler; Scott E. High efficiency DC motor with generator and flywheel characteristics
US5204572A (en) * 1990-09-13 1993-04-20 Sundstrand Corporation Radial magnetic coupling
US5220232A (en) * 1991-09-03 1993-06-15 Allied Signal Aerospace Stacked magnet superconducting bearing
US5334899A (en) * 1991-09-30 1994-08-02 Dymytro Skybyk Polyphase brushless DC and AC synchronous machines
US5440185A (en) * 1991-10-28 1995-08-08 Allwine, Jr.; Elmer C. Composite magnet brushless DC motor
US5436518A (en) * 1992-01-03 1995-07-25 Nihon Riken Co., Ltd. Motive power generating device
US5490319A (en) * 1992-01-29 1996-02-13 Ebara Corporation Thermotropic liquid crystal polymer composition and insulator
US5237229A (en) * 1992-04-16 1993-08-17 Shinko Electric Co., Ltd. Magnetic bearing device with a rotating magnetic field
US5625239A (en) * 1992-06-03 1997-04-29 Trw Inc. Method and apparatus for sensing relative position between two relatively rotatable members using concentric rings
JP2699655B2 (ja) * 1992-07-09 1998-01-19 セイコーエプソン株式会社 ブラシレスモータとその磁気センサ設置方法
DE4309382A1 (de) * 1993-03-23 1994-09-29 Bosch Gmbh Robert Elektronisch kommutierter Elektromotor
EP0678967A1 (fr) * 1994-04-18 1995-10-25 General Electric Company Rotor pour moteur à aimants permanents
GB2293281A (en) * 1994-08-08 1996-03-20 British Nuclear Fuels Plc An energy storage and conversion apparatus
US5736800A (en) * 1994-10-18 1998-04-07 Iannello; Victor Light weight, high performance radial actuator for magnetic bearing systems
US5532301A (en) * 1994-12-12 1996-07-02 Caterpillar Inc. Protectively coated position sensor, the coating, and process for coating
JPH08331784A (ja) * 1995-03-24 1996-12-13 Hitachi Metals Ltd 永久磁石界磁方式回転機
DK0748027T3 (da) * 1995-06-07 2007-01-08 Gen Electric Dynamoelektrisk maskine og rotorkonstruktioner deraf
US6114788A (en) * 1996-12-10 2000-09-05 Seagate Technology L.L.C. Motor/active magnetic bearing combination structure
GB9701538D0 (en) 1997-01-24 1997-03-12 Johnson Electric Sa Rotation detector
US6037692A (en) * 1997-12-16 2000-03-14 Miekka; Fred N. High power low RPM D.C. motor
JP2000156947A (ja) * 1998-11-17 2000-06-06 Yukio Kinoshita 磁石式電動機及び発電機
JP2001190043A (ja) * 2000-01-05 2001-07-10 Sankyo Seiki Mfg Co Ltd 磁気浮上モータ
US6392370B1 (en) * 2000-01-13 2002-05-21 Bedini Technology, Inc. Device and method of a back EMF permanent electromagnetic motor generator
JP2002112475A (ja) * 2000-09-26 2002-04-12 Hitachi Ltd 永久磁石式回転電機、これを用いた空気圧縮機および発電機

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0062405A1 *

Also Published As

Publication number Publication date
WO2000062405A1 (fr) 2000-10-19
BR0006027A (pt) 2001-03-13
US6759773B1 (en) 2004-07-06
KR20010052822A (ko) 2001-06-25
AU4289500A (en) 2000-11-14
AU760607B2 (en) 2003-05-15
JP2002542750A (ja) 2002-12-10
CN1197224C (zh) 2005-04-13
CN1300462A (zh) 2001-06-20
DE19916528A1 (de) 2000-10-19

Similar Documents

Publication Publication Date Title
EP3411940B1 (fr) Moteur électrique destiné à une pompe à fluide, famille de moteurs modulaire pour former des pompes à fluide différentes comportant plusieurs desdits moteurs électriques et procédé de fabrication
EP1865202B1 (fr) Pompe à eau pour étangs, aquariums, fontaines et analogues
EP3078099B1 (fr) Stator pour moteur à courant continu à commutation électronique
EP3223395B1 (fr) Structure électromagnétique d'une machine électrique
EP0987811A2 (fr) Connection des fils des enroulements d'un moteur
DE202010013455U1 (de) Elektrische Maschine
EP3928419B1 (fr) Dispositif d'entraînement avec un moteur électrique sans balais
EP3939148B1 (fr) Dispositif d'entraînement à moteur électrique sans balais
WO2019081011A1 (fr) Pompe à fluide électrique de véhicule automobile
DE102014103607A1 (de) Redundantes bürstenloses Antriebssystem
WO2020083559A1 (fr) Pompe comprenant un moteur électrique ayant un unité de barres collectrices compact
DE69917732T2 (de) Generator
WO2000062405A1 (fr) Moteur electrique a commande electronique destine a une utilisation dans un environnement presentant un solvant
DE3433695C1 (de) Elektronisch kommutierte Gleichstrommaschine und deren Verwendung
EP2738391A1 (fr) Pompe à liquide de refroidissement électrique
EP2342799B1 (fr) Machine électrique présentant un élément de contact pour la connexion électrique de composants électriques
DE102018126776A1 (de) Elektromotor mit kompakter Sammelschieneneinheit
DE10136482B4 (de) Elektronisch kommutierter Gleichstrommotor
DE102019101713B4 (de) Pumpe aufweisend einen Elektromotor mit Steckeranbindung in Form eines Zwischensteckers
DE102020212198A1 (de) Kontaktvorrichtung eines Stators
EP3198707B1 (fr) Transducteur électrodynamique
DE102021204545A1 (de) Antriebsvorrichtung mit einem bürstenlosen Elektromotor
DE102010062790A1 (de) Elektromotor zum Betreiben einer Pumpe für flüssige Medien
DE102017124408A1 (de) Elektromotor
DE102015214118A1 (de) Elektrischer Zentralausrücker und Kupplung für ein Fahrzeug mit dem elektrischen Zentralausrücker

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20001128

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT

RBV Designated contracting states (corrected)

Designated state(s): AT CH DE ES FR GB IT LI SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20060810