WO2009127525A1 - Support isolant pour un stator d’un moteur électrique destiné à entraîner des pompes hydrauliques - Google Patents

Support isolant pour un stator d’un moteur électrique destiné à entraîner des pompes hydrauliques Download PDF

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Publication number
WO2009127525A1
WO2009127525A1 PCT/EP2009/053927 EP2009053927W WO2009127525A1 WO 2009127525 A1 WO2009127525 A1 WO 2009127525A1 EP 2009053927 W EP2009053927 W EP 2009053927W WO 2009127525 A1 WO2009127525 A1 WO 2009127525A1
Authority
WO
WIPO (PCT)
Prior art keywords
hollow body
cylindrical hollow
electric motor
rotor
insulation support
Prior art date
Application number
PCT/EP2009/053927
Other languages
German (de)
English (en)
Inventor
Thomas Mann
Original Assignee
Continental Automotive 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 Continental Automotive Gmbh filed Critical Continental Automotive Gmbh
Publication of WO2009127525A1 publication Critical patent/WO2009127525A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/52—Fastening salient pole windings or connections thereto
    • H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
    • H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
    • 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
    • H02K5/08—Insulating casings
    • 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
    • H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
    • 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
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148—Sectional cores
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines

Definitions

  • the invention relates to an insulating support for a stator of an electric motor for driving fluid pumps.
  • the invention further relates to a method for producing the insulation carrier and to a use of the insulation carrier.
  • Isolation carriers for stators of electric motors for driving liquid pumps are known.
  • the drying space and the wet space are separated by a separately arranged can, wherein it is necessary in a disadvantageous way for the assembly to keep a corresponding air gap between the stator and the can.
  • This air gap reduces the power of the electric motor used or makes the arrangement of an electric motor with a higher power required to ensure the operation generally in the liquid pump.
  • the stator itself consists of an insulating support of non-electrically conductive material, one or more iron cores and windings, which are arranged directly on the insulation support.
  • the invention is based on the object, a
  • Isolation support for a stator of an electric motor for driving fluid pumps through whose Arrangement a gap between the stator and the can can be avoided.
  • the invention is further based on the object to provide a method for producing the insulation carrier and a use of the insulation carrier.
  • an insulating support for a stator of an electric motor for driving liquid pumps which consists of an inner cylindrical hollow body for receiving the rotor of the electric motor having on its outside attachments, each having an interior for receiving an iron core and each have on the outer side a circumferential groove for receiving coil windings, the respective groove base is perpendicular and optionally parallel to the longitudinal axis of the cylindrical hollow body.
  • the insulating support consists of an electrically non-conductive material, such as plastic, with particular advantage polyphenylene sulfide (PPS) is used. It has surprisingly been found that can be dispensed with entirely by the arrangement of the insulating support on keeping a gap between the stator and a can. This is achieved in that the insulating support itself has an inner cylindrical hollow body for receiving the rotor of the electric motor, which serves as a gap tube.
  • a preferred embodiment of the invention is that the cylindrical hollow body has at one end face a bearing for rotatably supporting the rotor. To this way, a compact design is ensured. Furthermore, the required space is advantageously reduced.
  • cylindrical hollow body and the bearing consist of a
  • the insulation support and the bearing can be made uniform in a single step, which favors the mass production of the insulation support.
  • the object underlying the invention is further achieved by a method for producing the insulation carrier, wherein in a first step iron cores are introduced in injection mold and positioned annularly, and in a second step, the iron cores are encapsulated in an injection molding, wherein at the same time a cylindrical hollow body and on its outer side essays are formed with internal spaces for receiving the iron cores and the essays each form a circumferential groove on its outer side, the respective groove base is perpendicular and optionally parallel to the longitudinal axis of the cylindrical hollow body.
  • the insulation support can be produced in only two process steps, wherein at the same time the arrangement of the iron cores takes place.
  • the exact shape of the insulation carrier is specified depending on the purpose or customer request by the injection mold used.
  • the individual process parameters of the injection molding process are determined and adjusted in terms of engineering, depending on the materials and the configuration of the shape of the insulation carrier.
  • the normally required gaps between the stator and a separately arranged can, which adversely affect the performance of the electric motor, are not realized in an advantageous manner, since the cylindrical hollow body of the insulation carrier itself acts as a can.
  • a bearing for the rotatable mounting of the rotor in the injection molding process in the second step at the same time on the end face of the hollow body is formed. This is achieved in a particularly simple manner by the formation of the corresponding injection mold. It is advantageous that the cylindrical hollow body and the bearing for the rotor can be manufactured as a single part in a single process step, which simplifies the mass production of the insulation carrier.
  • the invention is finally the use of the insulation carrier as a can for electric motors for
  • cooling water centrifugal pumps are used as cooling water pumps. It is particularly advantageous that can be completely dispensed with in the arrangement of the insulation carrier on the additional separate arrangement of a can, so that adverse gaps that could adversely affect the performance of the electric motor, be avoided, which is particularly desirable in motor vehicles.
  • FIG. 1 shows the insulation carrier with an iron core in longitudinal section.
  • FIG. 2 shows the insulation carrier in the side view in the direction of the arrow according to FIG. 1.
  • insulating support 1 for a stator of an electric motor for driving liquid pumps in Fig. 1, the insulating support 1 for a stator of an electric motor for driving liquid pumps in
  • the insulating support 1 consists of an inner cylindrical hollow body Ia for receiving the rotor (not shown) of the electric motor, which has on its outer side essays Ib, Ib ', each having an inner space 2 for receiving an iron core 3. For the sake of clarity, only one iron core 3 is shown.
  • the attachments Ib, Ib ' have a circumferential groove 4 for accommodating coil windings (not shown) whose respective groove base 4a extends perpendicularly and optionally parallel to the longitudinal axis of the cylindrical hollow body 1a.
  • the cylindrical hollow body Ia has at one end a bearing 5 for rotatably supporting the rotor.
  • the cylindrical hollow body Ia and the bearing 5 consist of an item.
  • the insulating support is produced in an injection molding process with simultaneous arrangement of the iron cores 3, wherein it is also particularly advantageous possible to incorporate the arrangement of the bearing 5 in the injection molding process.
  • the arrow direction allows an advantageous side view of the insulation carrier. 1
  • the insulating support 1 has on its outside a plurality of circularly arranged to each other essays Ib, Ib '. By the arrangement of the respective circumferential grooves 4 each of the essays Ib, Ib 'is provided for receiving coil windings.
  • the insulating support 1 is relatively compact and advantageously reduces power losses of the electric motor used (not shown).

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

L'invention concerne un support isolant (1) se composant d'un corps creux (1a) intérieur de forme cylindrique, destiné à recevoir le rotor du moteur électrique, ce support présentant des éléments de recouvrement (1b, 1b') sur sa face extérieure, lesquels présentent respectivement un espace intérieur (2) pour loger un noyau de fer (3) et respectivement une rainure circulaire (4) située sur la face extérieure pour recevoir des enroulements de bobines, les fonds de rainures (4a) des inserts s'étendant perpendiculairement, et, le cas échéant, parallèlement à l'axe longitudinal du corps creux (1a) de forme cylindrique. Un procédé de fabrication du support isolant (1) ainsi que l'utilisation du support isolant (1) en tant que chemise d'entrefer pour moteurs électriques destinés à entraîner des pompes à eau de refroidissement dans un véhicule automobile font également l'objet de l'invention.
PCT/EP2009/053927 2008-04-18 2009-04-02 Support isolant pour un stator d’un moteur électrique destiné à entraîner des pompes hydrauliques WO2009127525A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810019608 DE102008019608A1 (de) 2008-04-18 2008-04-18 Isolationsträger für einen Stator eines Elektromotors zum Antreiben von Flüssigkeitspumpen
DE102008019608.8 2008-04-18

Publications (1)

Publication Number Publication Date
WO2009127525A1 true WO2009127525A1 (fr) 2009-10-22

Family

ID=40677787

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/053927 WO2009127525A1 (fr) 2008-04-18 2009-04-02 Support isolant pour un stator d’un moteur électrique destiné à entraîner des pompes hydrauliques

Country Status (2)

Country Link
DE (1) DE102008019608A1 (fr)
WO (1) WO2009127525A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2963176B1 (fr) * 2010-07-23 2017-03-10 Pompes Salmson Sa Stator et procede d'assemblage de stator
DE102017105089A1 (de) * 2017-03-10 2018-09-13 Kolektor Group D.O.O. Elektromotor
DE102021108178A1 (de) * 2021-03-31 2022-10-06 HELLA GmbH & Co. KGaA Stator für einen Motor einer Pumpe, Motor mit diesem Stator und Pumpe mit diesem Motor
DE102021115008A1 (de) 2021-06-10 2022-12-15 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Elektrische Maschine mit einem Spaltrohr und Stator für eine elektrische Maschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19845864A1 (de) * 1998-10-05 2000-04-06 Wilo Gmbh Spaltrohrmotor
EP1028513A2 (fr) * 1999-02-12 2000-08-16 WILO GmbH Support de pôles saillantes
DE19943862A1 (de) * 1999-09-13 2001-03-15 Wilo Gmbh Naßläuferpumpe mit Montageplatte
EP1154544A2 (fr) * 2000-05-11 2001-11-14 Robert Bosch Gmbh Stator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5191698A (en) * 1988-09-14 1993-03-09 Matsushita Electric Industrial Co., Ltd. Method of making a resin-molded motor
JPH10322944A (ja) * 1997-05-19 1998-12-04 Minebea Co Ltd モータ構造及びその製造方法
JPH1189130A (ja) * 1997-09-08 1999-03-30 Minebea Co Ltd モータ構造
DE10026009A1 (de) * 2000-05-25 2001-12-06 Bosch Gmbh Robert Vorrichtung mit einem Stator und einer Hülse
DE10347302A1 (de) 2003-10-08 2005-05-12 Siemens Ag Spiralgehäuse für eine Kreiselpumpe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19845864A1 (de) * 1998-10-05 2000-04-06 Wilo Gmbh Spaltrohrmotor
EP1028513A2 (fr) * 1999-02-12 2000-08-16 WILO GmbH Support de pôles saillantes
DE19943862A1 (de) * 1999-09-13 2001-03-15 Wilo Gmbh Naßläuferpumpe mit Montageplatte
EP1154544A2 (fr) * 2000-05-11 2001-11-14 Robert Bosch Gmbh Stator

Also Published As

Publication number Publication date
DE102008019608A1 (de) 2009-10-22

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