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WO2012085281A2 - Procédé de fabrication d'une machine électrique et machine pourvue d'une gaine renforcée par des fibres - Google Patents

Procédé de fabrication d'une machine électrique et machine pourvue d'une gaine renforcée par des fibres Download PDF

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Publication number
WO2012085281A2
WO2012085281A2 PCT/EP2011/073980 EP2011073980W WO2012085281A2 WO 2012085281 A2 WO2012085281 A2 WO 2012085281A2 EP 2011073980 W EP2011073980 W EP 2011073980W WO 2012085281 A2 WO2012085281 A2 WO 2012085281A2
Authority
WO
WIPO (PCT)
Prior art keywords
stator
machine axis
laminated core
machine
extending
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.)
Ceased
Application number
PCT/EP2011/073980
Other languages
German (de)
English (en)
Other versions
WO2012085281A3 (fr
Inventor
Martin Krompass
Herbert Liebl
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.)
AVL TRIMERICS GmbH
Original Assignee
AVL TRIMERICS 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 AVL TRIMERICS GmbH filed Critical AVL TRIMERICS GmbH
Publication of WO2012085281A2 publication Critical patent/WO2012085281A2/fr
Anticipated expiration legal-status Critical
Publication of WO2012085281A3 publication Critical patent/WO2012085281A3/fr
Ceased legal-status Critical Current

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Classifications

    • 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

Definitions

  • the present invention relates to a method for producing an electric machine with a cylindrical stator according to the preamble of claim 1 and to an electric machine having a cylindrical stator according to the preamble of claim 10.
  • Electric machines which can be operated, for example, as electric motors to convert electrical energy into mechanical energy or as electrical generators to convert mechanical energy into electrical energy, are known from the well-known state of the art.
  • These electric machines which can also be distinguished in synchronous or asynchronous machines or in DC, AC or three-phase machines, preferably have a stator or a stator element and a rotor or a rotor element.
  • the stator is the stationary, immovable part of the electric machine and in some machines also the housing of the electric machine.
  • the stator which is constructed of a plurality of iron sheets forming the core of the induction coils, may either completely surround the rotor or preferably be completely surrounded by the rotor.
  • the rotor on the other hand, is the rotating part of the machine, which is alternatively referred to as a rotor.
  • stator consist, for example, of a permanent magnet with pole shoes in the case of a DC motor and of an electromagnetic motor in the case of an AC motor. Then, when electrical energy is passed through this electromagnet, a magnetic field is created in the stator.
  • the rotor In the case of the DC motor, the rotor consists of a coil with iron core and is rotatably mounted in the magnetic field between the pole pieces of the stator.
  • the air gap of an electric machine represents a magnetic heat resistance. This resistance is the higher, the larger the air gap. Therefore, this air gap should be kept as small as possible so as not to degrade the machine more than necessary.
  • a split tube is usually introduced into this air gap in order to achieve a seal.
  • a canned increases the air gap of the machine. Consequently, to negatively influence the magnetic properties of the machine as little as possible, it is necessary to make the wall thickness of this split tube as small as possible.
  • such split tubes are preferably used in so-called canned pumps, ie pump drives, which serve to convey liquids and in which accordingly the space filled with the conveyor must be hermetically sealed to the outside.
  • This sealing is achieved by means of the can, which is arranged between the rotor, which is, for example, flushed with the conveyor and the stator, in order to prevent penetration of the liquid into the stator, which has, for example, a laminated core with a corresponding winding.
  • the gap tube is subjected to a radially outwardly directed pressure force, ie an internal pressure, whereby the gap tube is pressed against the stator and as a result is supported by the laminated core of the stator. Consequently, as a counterpressure, a deformation of the preferably very thin-walled split tube is avoided by the uniformly distributed internal pressure load and the circumferential support function made possible by the stator.
  • a method for producing an electric machine with a cylindrical stator which has a central and along the machine axis extending stator bore and at least one Wecklung, which is a plurality of machine axis distributed and each in parallel along the machine axis extending grooves of a cylindrical Laminated laminated core of the stator recorded winding sections or conductors, comprises, claimed.
  • a fiber-reinforced, essentially cylindrical and at least partially thin-walled split tube substantially becomes pressed concentrically to the machine axis in the stator bore of the stator by means of an interference fit to seal the stator against a lying within the stator bore rotor element fluid-tight.
  • the stator has a laminated core with a winding arranged correspondingly in the grooves of the sheet metal pact, the winding heads of the winding extending out of the laminated core.
  • the essentially cylindrical stator preferably also completely surrounds the likewise cylindrical rotor, wherein a machine gap or an air gap is formed between the stator and the rotor.
  • the electric machine can be operated, for example, as an electric motor or as an electric generator, wherein the electric motor can be configured, for example, as an AC motor or as a DC or (three-phase) three-phase motor.
  • a fiber-reinforced can which is preferably made of fiber-reinforced plastics, is inserted into the machine nip between the stator and the rotor such that the can is due to interference fit, i. a press fit, is pressed into the laminated core of the stator in the stator bore, so that the can and the stator or the stator bore are aligned centrally with each other.
  • the machine axis which extends through the stator bore of the stator, at the same time the axis of rotation about which rotates the preferably cylindrical rotor, which also extends along the machine axis.
  • the machine axis is preferably the centric centerline of the rotor, the stator and the can.
  • the split tube has an at least partially thin wall in order to negatively influence the magnetic properties of the electrical machine as negatively as possible.
  • this split tube or also called fiber split tube By means of this split tube or also called fiber split tube, a fluid-tight seal between the rotating and preferably to be kept dry rotor and the stator, which is cooled, for example by means of a preferably liquid cooling medium is generated. Accordingly, a transition of the cooling medium from the stator to the rotor is avoided.
  • Preference is / are consequently the laminated core and / or the coil by means of a liquid coolant, which is passed through the grooves of the laminated core and / or by separately arranged cooling channels of the sheet metal Pact, cooled.
  • the separately arranged cooling channels of the sheet metal pact are also preferably introduced to the line or for guiding or transporting coolant liquid or a cooling medium in the laminated core.
  • the coolant which is e.g. flows through the windings of the laminated core exerts, for example, at least partially a radially inwardly acting circumferential pressure or external pressure on the can, which is substantially less than a caused by the interference fit at least partially radially outwardly acting and caused by the compressive stress of the can compressive force.
  • the can With this interference fit of the can and the stator, the can is thus protected from damage and deformation at least as long as the external pressure acting on the can through the coolant is less or less than the radial compressive force, which is preferably caused by the interference caused by the interference fit Compressive stress is generated.
  • the split tube and the stator usually have very different stiffnesses, wherein the split tube is usually relatively low by the external pressure, caused by the coolant, claimed and consequently preferably continuously in contact with the stator or the stator bore or the laminated core of the stator , As long as this contact described exists, the split tube can also be subjected to an increased liquid pressure without deforming or buckling.
  • the minimum possible wall thickness of the split tube results here on the one hand from the requirement for the seal against the coolant and on the other hand from the
  • the pressure resistance of the can with respect to the external pressure caused by the coolant can be achieved by at least partially treating an outer surface of the can and / or an inner wall of the stator with a substantially pasty adhesive before the can Essentially concentric with the machine axis is pressed into the stator bore of the stator.
  • the can is not only pressed into the stator bore, but also bonded to the stator or to the laminated core.
  • the slots of the stator, in which the winding and preferably the copper winding is arranged, are not completely closed. Only a small part of the adhesive, which is displaced by the press-fitting of the can into the stator bore, is pushed into the grooves.
  • Such an additional non-positive connection can also be useful, for example, if the radial required preload of the can to compensate for the external pressure alone is no longer sufficient, because, for example, the limit of the permissible voltage in the can is exceeded.
  • the thick-walled split tube has a firmer and consequently less pressable wall, so that the thick-walled split tube can no longer have a corresponding interference fit with the stator bore, in which sufficient preload between the split tube and the stator is made possible.
  • the split tube is thus formed in the stator bore, for example, only as a transition fit, pressed.
  • an additional bonding of this can with the laminated core can lead to the required rigidity of the can, in order to avoid bulging of the can due to pressure forces arising from the coolant.
  • an end plate extending substantially parallel to the end faces and substantially centrally mounted with the machine axis annular end disk is connected to the laminated core, which evenly distributed around the machine axis and has radially outwardly extending recesses from the machine axis, through which the winding is guided as well as through the grooves of the laminated core and at which end plate in each case a centrally aligned to the machine axis pipe element is arranged for Wckelkopfabschottung.
  • the tubular element which can also be referred to as Wckelkopfabschottung, is arranged in a further preferred embodiment substantially rigid in the direction of the machine axis and / or substantially immovable along the machine axis and / or torsionally rigid about the machine axis in the region of a central bore of the end plate.
  • the end plates are preferably annular elements which have a central bore whose diameter is substantially equal to the diameter of the
  • Stator bore corresponds.
  • the central bore of the end plate has a larger diameter than the Statorbohrungs trimmesser.
  • the outer diameter of the end disks is substantially the same size with respect to the outer diameter of the stator or the laminated core of the stator, so that the Endusionn can be arranged on the end faces of the stator or the laminated core of the stator without forming a protrusion or depression to the outer diameter of the stator.
  • the recesses of the end disks which accordingly extend radially outwardly from the central bore of the end disk, have substantially the same shape as the grooves of the laminated core which are viewed in a cross section extending orthogonally to the machine axis. As a result, the recesses in arranging the end plates on the end faces of the laminated core form an extension of the grooves extending along the machine axis.
  • the end plates are preferably first arranged on the end faces of the laminated core, for example by means of a welded connection, before the winding is placed in the grooves and consequently also in the recesses of the end plates, the heads consequently not only outside the laminated core, but thus also except for
  • the end plates can not only by means of a joint welding process, such as inert gas welding, resistance welding, cold pressure welding, friction welding, laser beam welding, or electron beam welding, but also via solder joints or by forming joining processes, such as blind and / or Punch rivets are interconnected.
  • a joint welding process such as inert gas welding, resistance welding, cold pressure welding, friction welding, laser beam welding, or electron beam welding
  • solder joints or by forming joining processes such as blind and / or Punch rivets are interconnected.
  • the end plates are also arranged by means of an adhesive or by known screw or pin connections to the end faces of the laminated core.
  • a tubular element is arranged on each end disk, which extends in the machine axis and is aligned centrally with the machine axis.
  • This tube element is used to foreclose the winding heads, if in a preferred embodiment, a gap remaining between the gap tube and the tube element is filled up with a filling material. Accordingly, the outer surface of the can connects in the region of Wckelkmü with the inner surface of the tube element or the Wckelkopfabschottung via a corresponding filling compound, which preferably consists of polyurethane (PU).
  • PU polyurethane
  • the filling material or the filling material for example, from polyethylene (PE), polyvinyl chloride (PVC), polyvinyl acetate (PVA), sponge rubber or chloroprene rubber.
  • the tube element allows sufficient foreclosure of Wckelkexcellent compared to the filling material and at the same time represents a counter element to see the filling between the split tube and the pipe element to allow an additional frictional connection between the can and the stator or the laminated core.
  • the filling compound or the filling material is not only arranged in the gap between the can and the tubular element, but also additionally poured into the inserted between the grooves of the laminated core cover slide and the gap tube cavities to an additional frictional connection between to allow the can and the laminated core.
  • the cover slides which extend substantially parallel to the machine axis, are preferably introduced into each groove for closing the grooves in the direction of the machine axis.
  • the laminated core preferably has separate cooling channels which are preferably distributed uniformly around the machine axis and extend along the machine axis.
  • the laminated core may also have a plurality of rows of cooling channels arranged one behind the other as viewed in the radial direction, wherein the cooling channels are preferably arranged offset from one another.
  • cooling channels are distributed unsystematically around the machine axis.
  • the cooling channels are located behind the grooves in a radial direction as viewed from the machine axis.
  • the cooling channels viewed in the radial direction between the grooves of the laminated core i. are arranged in the so-called teeth of the laminated core.
  • the end disks also have holes whose position corresponds to the arrangement of the cooling channels in the laminated core, since these bores preferably form the inputs to the cooling channels via the end disks.
  • the supporting effect by the bias and / or adhesion of the can and / or by filling the gaps and voids with filler i. be given by the positive connection with the grooves, yet not sufficient.
  • the split tube is supported in the areas of Wckelkexcellent by arranged on an inner surface of the split tube end shields.
  • an electric machine with a cylindrical stator with at least one winding which has a multiplicity of winding sections or conductors distributed around the machine axis and in each case extending in parallel along the machine axis extending grooves of a cylindrical laminated core of the stator.
  • the stator of the machine according to the invention has a substantially centric and along the machine axis extending stator bore, in which a fiber-reinforced and substantially cylindrical and at least partially thin-walled canned tube is pressed by interference fit to a fluid-tight seal between the stator and inside allow the stator bore lying rotor element.
  • the machine according to the invention is, for example, an AC motor, the stator of which has a laminated core with grooves extending in the laminated core along the machine axis and radially outward grooves, and a washer running in the grooves.
  • the electric machine according to the invention is a DC or three-phase machine or a synchronous or asynchronous machine, which can be operated as a motor or as a generator.
  • the machine axis is preferably the axis of rotation of the rotor or of the rotor element about which the cylindrical rotor rotates, and consequently the center centric line which extends through the stator bore.
  • the outer surface of the thin-walled split tube and / or the inner surface of the stator bore or the stator or the laminated core are / is coated in a preferred embodiment with an adhesive, which consequently after pressing the can into the stator bore partially into the grooves of the Can displace Blechpaktes.
  • an adhesive which consequently after pressing the can into the stator bore partially into the grooves of the Can displace Blechpaktes.
  • the gap tube preferably has a length extending along the machine axis, which length is substantially longer than a length of the laminated core extending along the machine axis.
  • the split tube preferably extends not only within the laminated core, but also outside in the field of winding heads.
  • stator has on the end sides additionally borrowed parallel to the end faces extending end plates on which in the region of a running around the machine axis stator bore of the stator in each case a substantially centered with the machine axis and aligned substantially orthogonal to the end plate and the pipe element extending away from the stator element is arranged to form a wedge head bulkhead.
  • the arrangement and design or training of the end plates corresponds to the above-described arrangement and design of the end plates.
  • the end disks essentially have projections which extend radially inwardly from the central bore and are distributed essentially around the machine axis, which projections are in recesses or a groove of the pipe element extending essentially in the circumferential direction of the pipe element and preferably continuous which preferably extends radially inwardly from the outer surface of the tubular element, engage to substantially rigidly lock the tubular element with respect to the end plate and immovably along the machine axis and also, for example, torsionally rigid with the end plate with respect to the end plate.
  • the number and arrangement of the machine axis distributed around the projections and / or the corresponding recesses is not fixed and can be made variable depending on the constructive or dimensional design of the end plates or the tubular element.
  • the split tube is preferably supported in the region of Wckelkée of end shields, which are arranged on the inner surface or on the inside of the can.
  • the end shields are therefore preferably a part of the electric machine according to the invention.
  • the can has at least one section with a greater wall thickness in the areas of the winding heads than in the areas of the laminated core. This is due to a critical bridging length between the end shields or between the end shields and the canned area located in the laminated core, in which the support of the can through the end shields is no longer sufficient. Consequently, reducing or preventing an increase in the wall thickness of the can in the region of the winding heads deforming or deforming the can or the can ends in the winding heads.
  • the increase in the wall thickness can be done, for example, radially inward or radially outward. It is in any case to ensure the assembly of the rotor in the wall thickness increase or to observe.
  • the bridging length can be reduced by further insertion of the end shields, for example even into the vicinity of or in the region of the laminated core, but care must be taken to avoid the flow of wrinkles in the end shields.
  • 1a shows a schematic diagram of a can with an external pressure acting thereon
  • 1 b is a schematic diagram of a deformed split tube with external pressure acting thereon
  • FIG. 2 is a schematic diagram of a detail of a laminated core of the stator with a pressed-in can;
  • Fig. 3 is a tension diagram of the uncooled and thus not pressurized by cooling fluid, i. pressureless electrical machine;
  • Figure 4 is a tension diagram of the cooled and thus pressurized by the cooling liquid, i. pressurized electric machine;
  • FIG. 5 is a schematic diagram of a section of a laminated core of the stator with glued split tube
  • FIG. 6 is a schematic diagram of a section of a laminated core of the stator
  • FIG. 8 is a schematic diagram of a section of a laminated core of the stator with on
  • FIG. 9 shows a schematic diagram of a section of a laminated core of the stator with
  • FIG. 1a shows a schematic diagram of a split tube 1 with external pressure acting on it, which acts uniformly in the radial direction towards the can 1 in a gap tube 1 inserted uniformly in the circumferential direction around the can 1 in a stator bore (not shown here). If the can 1 as shown in Figures 1a and 1b shown not pressed into a stator, the can 1 has no additional forces, as resulting from the material properties and the stiffness of the can 1 forces the external pressure p aU SEN to oppose.
  • This external pressure is caused for example by a cooling liquid, which is passed through the grooves of the laminated core (not shown here), for example, for cooling the winding and / or for transporting the cooling liquid and thus impinges on the outer surface 1a of the can 1.
  • the can 1 would not deform due to its location in the stator bore (not shown here) the gap tube 1 with its outer surface 1a on the laminated core (not shown here) would rest, which consequently supports the split tube 1 by sufficient counterforce forces can be opposed to the internal pressure by the contact with the laminated core.
  • a pump drive in which the liquid to be conveyed flows around the rotor and exerts a radially outwardly directed internal pressure on the split tube.
  • the laminated core 2 shows a schematic diagram of a detail of a laminated core 2 of the stator with pressed-in can 1.
  • the laminated core 2 has a multiplicity of grooves 3 distributed in the circumferential direction around the machine axis M and extending radially outward from the machine axis M and along the machine axis M, into which groove (not shown here) or the copper winding is introduced becomes.
  • the can 1 is inserted into the stator bore of the laminated core 2 by means of an interference fit, i. Pressed a press fit.
  • corresponding forces Fg compressive forces or compressive force
  • Fg compressive forces or compressive force
  • the can 1 is supported by the laminated core 2 through this interference fit of the can 1 and the laminated core 2.
  • this support of the can 1 effective against the laminated core 2 as long as the external pressure, ie the forces acting in the region of the grooves 3 radially inward Fp of the coolant are smaller than the forces Fg, ie the radial compressive stress of the can.
  • FIG. 3 shows a bracing diagram of the uncooled and thus not pressurized by cooling liquid, ie pressureless electrical machine, ie the state of bias of the pressed into the stator bore gap before the entire electrical machine and preferably the laminated core are acted upon with coolant, wherein the coolant is preferably performed by the grooves of the laminated core and / or by additional cooling channels of the laminated core.
  • the change in length f or the change in diameter f of the split tube fspaitrohr and the stator f Stato r or laminated core f S t a tor is applied, wherein on the Y-axis, the pressure p and in this case the joining pressure p Au SEN, quiet is applied.
  • the joining pressure p of the can increases, while at the same time the can, as illustrated by the reference symbol fspaitrohr , is continuously compressed or compressed.
  • the stator or the sheet metal package is continuously stretched, this is indicated by the reference numeral tator f S.
  • the joining pressure p Au Shen, operation is sufficient, however, to prevent deformation or buckling of the can during the operation of the electric machine. Ahead- However, for this there is a sufficient preload, ie a sufficient joining pressure PAußen, rest when pressing the can into the stator bore.
  • FIG. 5 is a schematic diagram of a section of a laminated core 2 of the stator is shown with a bonded can 1, wherein the can 1 is pressed in this embodiment in the stator bore of the laminated core 1 and the stator by means of interference fit or by means of, for example, a transitional fit in the Stator bore was inserted.
  • the can 1 has one on the outer surface in both variants
  • Statorbohrung or the laminated core 2 and preferably the inner wall areas between the grooves 3 of the laminated core 2 are covered with an adhesive before the split tube 1 is introduced into the stator bore. It is also conceivable that additionally or alternatively, after the introduction of the can 1 in the stator bore of the laminated core 2, an adhesive is introduced into the grooves 3 of the laminated core 2, which the outer surface 1 a of the can 1 with the grooves 3 and preferably with the open in the direction of the machine axis M region of the grooves 3 connects.
  • the laminated core 2 as shown in FIG. 6, may have an end plate 4 with a tube element 5 arranged on the end plate 4 on each of its end faces 2a.
  • the annular end plate 4 extends parallel to the end face 2a of the laminated core 2 and is preferably welded to the laminated core 2.
  • Each end disk has a central through-bore, from which projections 4a extend radially inwards, which are preferably distributed uniformly in the circumferential direction about the machine axis M.
  • a tubular element 5 is preferably arranged such that the projections 4 a of the end plate 4 in recesses 5 a or a circumferential groove 5 a of the tubular element 5, which extend from the outer surface 5 b radially inward or extends, intervene.
  • the tubular element 5 is preferably connected rigidly and / or rotationally rigidly to the end disk 4 and advantageously immovably along the machine axis M to the end disk 4.
  • the tubular element 5 in this case serves to seal off the winding heads 6, which extend parallel to the machine axis M from the laminated core 2 or the grooves (not shown here) of the Blechpa- ketes 2 and consequently also from the end plate 4 out.
  • the parallel to the machine axis M extending length of the tubular element 5 is at least as long and preferably even longer than the length of parallel to the machine axis M Wckelkexcellent extending.
  • stator according to the figure 6 with a pressed-in or merely inserted split tube and each one arranged on the end faces 2a of the laminated core 2 end plates 4 with tube member fixed thereto, creates a gap 7 and a cavity 7, which by a filling material or Filling medium or potting material can be completed.
  • the slot slots 10 can be closed with a suitable filling medium.
  • the groove slots 10 lie between a inserted in a groove 3 cover slide 9, the laminated core 2 and the split tube 1 and thus form a cavity. In this cavity, no winding 1 1 is arranged, since the cover slide 9, which extend along the machine axis M in the grooves 3, block the machine axis M directed towards the outputs of the grooves 3 and thus hold the winding in the grooves 3.
  • the can 1 is supported by end shields 8, as shown in Figure 8, by the bearing plates 8 on the inner surface 1 b or the inner wall 1 b of the can 1 and preferably at the ends of the can 1 are arranged to additionally support the split tube 1 in the region of Wckelkexcellent 6.
  • a substantially fluid-tight seal of the interior area I, i. of the region in which the rotor (not shown here) is arranged, to an outer region A is made possible by an O-ring 12 arranged between the bearing plate 8 and the can 1.
  • This O-ring 12 is preferably located in a recess 13 of the bearing plate. 8
  • the reference symbol S here denotes the bridging length, which extends from the bearing area of the bearing plate 8 to the laminated core 2 parallel to the machine axis M.
  • the bridging length S in the embodiment of the electrical machine according to FIG. 8, has a substantially short length, as a result of which support of the can 1 by means of the bearing plates 8 arranged at the ends of the can 1 is sufficient.
  • the support of the can 1 by the end shields 8, as shown in Figure 6, no longer sufficient.
  • the wall thickness of the can 1 is preferably increased or increased in the areas of the winding heads 6, and thus to allow increased rigidity of the can 1 in this area.
  • the wall thickness of the can 1 can increase either in the radial direction inwardly, as shown in the left view of Figure 9 or in the radial direction to the outside, as shown in the right view of FIG.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'une machine électrique, et une machine électrique qui comporte un stator cylindrique pourvu d'un trou central s'étendant le long de l'axe de la machine et d'au moins un enroulement comprenant une pluralité de segments d'enroulement ou conducteurs répartis autour d'un axe de la machine et reçus dans des rainures, s'étendant parallèlement à l'axe de la machine, d'un noyau feuilleté cylindrique du stator. Selon l'invention, une gaine renforcée par des fibres sensiblement cylindrique et à paroi mince au moins par endroits est enfoncée dans le trou du stator de manière sensiblement centrée par rapport à l'axe de la machine, par ajustement serré, afin d'étanchéifier le stator par rapport à un élément rotor situé à l'intérieur du trou du stator.
PCT/EP2011/073980 2010-12-23 2011-12-23 Procédé de fabrication d'une machine électrique et machine pourvue d'une gaine renforcée par des fibres Ceased WO2012085281A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010055823.0A DE102010055823B4 (de) 2010-12-23 2010-12-23 Verfahren zum Herstellen einer elektrischen Maschine und Maschine mit Faserspaltrohr
DE102010055823.0 2010-12-23

Publications (2)

Publication Number Publication Date
WO2012085281A2 true WO2012085281A2 (fr) 2012-06-28
WO2012085281A3 WO2012085281A3 (fr) 2014-06-05

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DE (2) DE202010018078U1 (fr)
WO (1) WO2012085281A2 (fr)

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GB2517410A (en) * 2013-07-16 2015-02-25 Aim Co Ltd A Stator and a Rotor for an Electric Motor
US10483817B2 (en) 2013-07-16 2019-11-19 Equipmake Ltd Rotor for an electric motor including a structure for retaining rotor segments and permanent magnets on a hub thereof
EP3611828A1 (fr) * 2018-08-16 2020-02-19 Siemens Aktiengesellschaft Machine tournante dynamoélectrique doté d'un blindage de fente d'aération
CN115085434A (zh) * 2021-03-10 2022-09-20 保时捷股份公司 密封管式马达

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DE102017102141A1 (de) 2017-02-03 2018-08-09 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verfahren zur Herstellung einer elektrischen Antriebsmaschine und elektrische Antriebsmaschine
DE102018115927A1 (de) * 2018-07-02 2020-01-02 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Spaltrohrmotor mit Stützendscheibe
EP3916967A1 (fr) * 2020-05-29 2021-12-01 Siemens Aktiengesellschaft Chemise d'entrefer pour une machine électrique
DE102020117314A1 (de) 2020-07-01 2022-01-05 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Spaltrohr zur Abdichtung eines Rotorraumes von einem Statorraum einer elektrischen Maschine, elektrische Maschine, Kraftfahrzeug, Verfahren zur Herstellung eines Spaltrohres und einer elektrischen Maschine
DE102020117274B3 (de) 2020-07-01 2021-09-02 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Elektrische Maschine mit einem Spaltrohr zur Trennung eines Nassraums und eines Trockenraums der Maschine
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DE102021207416B3 (de) 2021-07-13 2022-11-10 Siemens Aktiengesellschaft Spaltrohr für eine elektrische rotierende Maschine, Herstellungsverfahren dazu
DE102021120993A1 (de) 2021-08-12 2023-02-16 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Elektrische Maschine und Kraftfahrzeug
DE102021212112A1 (de) 2021-10-27 2023-04-27 Zf Friedrichshafen Ag Verfahren zur Herstellung eines Spaltrohrs für eine elektrische Maschine
DE102021212109A1 (de) * 2021-10-27 2023-04-27 Zf Friedrichshafen Ag Verfahren zur Herstellung eines Spaltrohrs für eine elektrische Maschine
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DE102010055823A1 (de) 2012-06-28

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