WO2024183997A1 - Rotor für eine elektrische maschine, insbesondere eines kraftfahrzeugs, sowie elektrische maschine, insbesondere für ein kraftfahrzeug - Google Patents
Rotor für eine elektrische maschine, insbesondere eines kraftfahrzeugs, sowie elektrische maschine, insbesondere für ein kraftfahrzeug Download PDFInfo
- Publication number
- WO2024183997A1 WO2024183997A1 PCT/EP2024/052873 EP2024052873W WO2024183997A1 WO 2024183997 A1 WO2024183997 A1 WO 2024183997A1 EP 2024052873 W EP2024052873 W EP 2024052873W WO 2024183997 A1 WO2024183997 A1 WO 2024183997A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- axial direction
- laminated core
- star disk
- shaft
- 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
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
- H02K3/527—Fastening salient pole windings or connections thereto applicable to rotors only
-
- 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
Definitions
- the invention relates to a rotor for an electrical machine, in particular of a motor vehicle, according to the preamble of patent claim 1. Furthermore, the invention relates to an electrical machine, in particular for a motor vehicle, with such a rotor.
- WO 2020/099048 A1 discloses a support device for a rotor of a separately excited internal rotor synchronous machine of an electrically driven motor vehicle, with a star disk which can be arranged on a laminated core of the rotor between a front side of the laminated core and winding heads of rotor windings of the rotor protruding on the front side. Furthermore,
- DE 102018 009 845 A1 discloses a rotor for an electrical machine.
- US 1 450 521 discloses an electrical machine.
- An electrical machine is known from DE 6 47315 C.
- DE 102013 208 856 A1 discloses a rotor of a flywheel storage device, comprising an axial stack of a plurality of sheet metal disks.
- a rotor of an electric motor is known from DE 10 2020203 483 A1, wherein sheet metal packages are provided which are arranged with a clearance fit on a rotor shaft of the rotor.
- a first clamping disk and a second clamping disk are provided which are arranged on the rotor shaft and clamp the sheet metal packages between them in the axial direction and thereby fix them.
- a rotor for an electrical machine can be seen as known from DE 102020 112 037 A1.
- the object of the present invention is to provide a rotor for an electrical machine, in particular of a motor vehicle, and an electrical machine, in particular for a motor vehicle, so that a particularly advantageous operation of the electrical machine can be ensured, in particular also over a long service life of the electrical machine.
- a first aspect of the invention relates to a rotor for an electric machine, in particular of a motor vehicle.
- the motor vehicle which is preferably designed as a motor vehicle, in particular as a passenger car, and is also simply referred to as a vehicle, has the electric machine in its fully manufactured state and can be driven by means of the electric machine, in particular purely electrically.
- the motor vehicle is thus, for example, a hybrid vehicle or an electric vehicle, in particular a battery-electric vehicle (BEV).
- BEV battery-electric vehicle
- the electric machine is preferably a high-voltage component whose electrical voltage, in particular electrical operating or nominal voltage, is preferably greater than 50 volts, in particular greater than 60 volts, and very preferably amounts to several hundred volts.
- the electric machine in its fully manufactured state has the rotor and the stator, by means of which the rotor can be driven and can therefore be rotated about a machine axis of rotation relative to the stator.
- the electric machine can provide drive torques via its rotor, by means of which the motor vehicle can be driven, in particular purely electrically.
- the rotor has a rotor shaft, via which the electric machine can, for example, provide the drive torque.
- the rotor also has a laminated core, which is formed separately from the rotor shaft and arranged on the rotor shaft.
- the laminated core is connected to the rotor shaft in a rotationally fixed manner.
- the rotor also has at least one star disk, which is also referred to as the first star disk. When the star disk is mentioned above and below, this means the first star disk, unless otherwise stated.
- the star disk is formed separately from the laminated core and separately from the rotor shaft.
- the star disk is arranged on the rotor shaft.
- the star disk adjoins the laminated core in the axial direction of the rotor, the axial direction of which coincides with the machine's axis of rotation.
- the star disk adjoins an axial end face of the laminated core in the axial direction of the rotor, the axial end face also being referred to as the first axial end face.
- the laminated core ends at the axial end face in the axial direction of the rotor.
- a shaft nut is provided, which is designed in particular separately from the rotor shaft, separately from the laminated core and separately from the star disk, which adjoins the star disk in the axial direction of the rotor, in particular such that the shaft nut is arranged on a side of the star disk that points away from the laminated core in the axial direction of the rotor, and thus faces away from the laminated core, in particular the front side.
- the shaft nut is screwed, in particular directly, onto the rotor shaft, which is also referred to simply as the shaft, so that the star disk is clamped in the axial direction of the rotor against the laminated core, in particular against the first axial front side, by means of the shaft nut.
- the shaft nut is preferably screwed directly onto the rotor shaft and thus preferably screwed directly to the shaft.
- the shaft in particular an outer peripheral surface of the shaft, preferably has a first thread, which is designed in particular as a first external thread.
- the shaft nut, in particular an inner circumferential surface of the shaft nut has a second thread corresponding to the first thread, which is preferably designed as a first internal thread.
- the threads are screwed directly into one another and thus directly screwed together, whereby the shaft nut is screwed onto the rotor shaft and is screwed and thus tensioned in the axial direction at least indirectly, in particular directly, against the star disk, in particular against the said side of the star disk.
- the star disk is tensioned against the laminated core, in particular against the first axial end face of the laminated core.
- the shaft nut most preferably lies directly against the said side of the star disk in the axial direction of the rotor, so that the shaft nut is preferably supported directly on the side of the star disk in the axial direction of the rotor.
- the invention is based in particular on the following findings and considerations:
- the laminated core is usually compressible and thus deformable for technical reasons, in particular in the axial direction of the rotor.
- the deformability of the laminated core can lead to stresses as well as elastic and/or plastic deformations or displacements, particularly at high speeds of the electrical machine. This can lead to imbalances, particularly during operation of the electrical machine, which can lead to increased wear and/or acoustic impairments.
- the rotor has at least one winding, in particular several windings, wherein the respective winding is also referred to as the rotor winding.
- the winding is wound around the laminated core and preferably around the star disk.
- the winding is made of a particularly metallic wire, which is thus made of a metallic material such as copper and can be designed as a copper wire, for example.
- the displacements mentioned can lead to tensions in the winding, in particular in the wire, so that damage such as cracks in the wire can occur.
- the invention now makes it possible to clamp the star disk firmly against the laminated core in the axial direction by means of the shaft nut, thereby creating an axially very rigid block which comprises at least the laminated core, the star disk and the shaft nut.
- the block is clamped in the axial direction by means of the shaft nut, which makes the block less sensitive to elastic and plastic changes, in particular due to speed and temperature, compared to conventional solutions.
- the axial clamping caused by the shaft nut can prevent so-called dishing of individual sheets of the laminated core.
- the laminated core is formed from several sheet metal segments which are formed separately from one another and, for example, connected to one another, which can be the sheets mentioned above.
- the sheet metal segments follow one another in the axial direction of the rotor and/or in the circumferential direction of the rotor running around the axial direction of the rotor.
- the dishing effect also known as the plate effect, can arise because the sheets, also known as individual sheets, deform on one side when they are shrunk onto the rotor shaft, particularly due to punching and punching tearing.
- the laminated core is connected to the rotor shaft by means of a press fit, that is to say in particular by means of a press fit, whereby the laminated core is connected to the rotor shaft in such a way that relative rotations between the laminated core and the rotor shaft around the machine rotation axis are avoided and preferably that relative movements in the axial direction between the laminated core and the rotor shaft are avoided.
- the laminated core is connected to the rotor shaft in a rotationally fixed manner by means of the press fit.
- the star disk adjoins the first axial end face of the laminated core in the axial direction of the rotor.
- a further embodiment is characterized by the fact that the star disk lies directly against the first axial face of the laminated core in the axial direction of the rotor. This makes it possible to achieve a particularly advantageous, high rigidity of the block, so that particularly smooth running and thus particularly advantageous operation of the electrical machine can be guaranteed.
- a collar of the rotor shaft also referred to as a shaft collar
- a shaft collar is arranged on a second axial end face of the laminated core, which faces away from the first axial end face of the laminated core in the axial direction of the rotor and thus away from the star disk and the shaft nut.
- the laminated core ends at the second axial end face in the axial direction of the rotor.
- the laminated core is supported at least indirectly, in particular directly, on the collar in the axial direction of the rotor.
- the laminated core, in particular the second axial end face of the laminated core is supported at least indirectly, in particular directly, on the collar in the axial direction of the rotor, so that, for example, the laminated core, in particular the second axial end face of the laminated core, rests at least indirectly, in particular directly, on the collar in the axial direction of the rotor.
- the laminated core, in particular the second axial end face of the laminated core is clamped at least indirectly, in particular directly, against the collar by means of the shaft nut in the axial direction of the rotor.
- a further shaft nut to be arranged on the second axial end face of the laminated core, which is screwed, in particular directly, onto the rotor shaft and bolted to the rotor shaft, in particular directly.
- the previous and following statements on the first shaft nut can also be easily transferred to the second shaft nut and vice versa.
- the shaft nut is mentioned above and below, this means the first shaft nut unless otherwise stated.
- the laminated core to be supported at least indirectly on the further shaft nut in the axial direction of the rotor.
- the laminated core is supported at least indirectly on the collar in the axial direction of the rotor and is clamped against the collar.
- the collar represents a stop that is easy and inexpensive to produce and is positioned precisely and in a defined manner relative to the rest of the rotor shaft in the axial direction of the rotor.
- a dimensional chain can be constructed in a simple and defined manner and the rotor can be manufactured easily.
- the laminated core and the star disk can be clamped tightly against the collar using a shaft nut, so that a high level of tension and rigidity of the block can be achieved. This ensures particularly smooth running and therefore particularly advantageous operation of the electrical machine.
- a further embodiment is characterized in that a second star disk is arranged in the axial direction of the rotor between the collar and the second axial end face of the laminated core.
- the second star disk is preferably designed separately from the rotor shaft, separately from the laminated core, separately from the first star disk and separately from the shaft nut.
- the laminated core is supported on the collar by means of the second star disk, i.e. via the second star disk in the axial direction of the rotor, wherein the laminated core is tensioned against the collar by means of the shaft nut in the axial direction of the rotor by means of the second star disk and thus via the second star disk.
- the aforementioned block has the second star disk.
- the winding is (also) wound around the second star disk.
- a further embodiment is characterized in that the second star disk rests directly on the collar in the axial direction of the rotor on the one hand and directly on the second axial end face of the laminated core on the other hand.
- the second star disk has a second side, in particular a second end face, pointing away from the laminated core in the axial direction of the rotor, in particular from the second axial end face of the laminated core, and from the first star disk and the shaft nut and facing the collar, wherein, for example, the collar rests directly on the second side of the second star disk in the axial direction.
- the collar is formed in one piece with the rotor shaft. This means that the laminated core can be clamped particularly tightly against the collar using the shaft nut, and the rotor can be manufactured quickly and cost-effectively.
- the winding protrudes from the first axial end face in the axial direction of the rotor, in particular such that first length regions of the winding protrude from the first axial end face in the axial direction of the rotor and thereby form at least a first winding head of the winding.
- the first star disk is arranged in the axial direction of the rotor between the first winding head and the laminated core, in particular the first axial end face.
- the winding protrudes from the second axial end face of the laminated core in the axial direction of the rotor, in particular such that second length regions of the winding protrude from the second axial end face in the axial direction of the rotor and thereby form at least a second winding head of the winding.
- the second star disk is arranged in the axial direction of the rotor between the second winding head and the laminated core, in particular the second axial end face.
- the respective star disk is used in particular to mechanically support the respective winding head against high centrifugal forces when the rotor rotates.
- the respective star disk is used, for example, to redirect the winding and thus to be able to wind it advantageously.
- a second aspect of the invention relates to an electrical machine which has a stator and a rotor according to the first aspect of the invention.
- Advantages and advantageous embodiments of the first aspect of the invention are to be regarded as advantages and advantageous embodiments of the second aspect of the invention and vice versa.
- the electrical machine is designed as a current-excited synchronous machine (SSM).
- SSM current-excited synchronous machine
- a motor vehicle also referred to simply as a vehicle, which is preferably designed as a motor vehicle, in particular as a passenger car, and has at least one electric machine according to the second aspect of the invention and can be driven by means of the electric machine, in particular purely electrically.
- Advantages and advantageous embodiments of the first aspect and the second aspect of the invention are to be regarded as advantages and advantageous embodiments of the motor vehicle and vice versa.
- Fig. 1 is a schematic and partially sectioned side view of a
- Fig. 2 is a schematic and perspective exploded view of the rotor
- Fig. 3 is a schematic perspective view of a star disk of the rotor.
- Fig. 1 shows a schematic and partially sectioned side view of a rotor 1 for an electric machine of a motor vehicle, also simply referred to as a vehicle.
- the electric machine has a stator and the rotor 1, which can be driven by the stator and can therefore be rotated about a machine rotation axis 4 relative to the stator.
- the rotor 1 has a rotor shaft 5, via which the electric machine can provide drive torques for driving the motor vehicle, in particular purely electrically.
- the rotor 1 also has a slip ring module 3.
- the electric machine is designed as a current-excited synchronous machine (SSM).
- SSM current-excited synchronous machine
- the rotor 1 has, as can be seen particularly well in conjunction with Fig. 2, a laminated core 6, which is designed separately from the rotor shaft 5 and is arranged on the rotor shaft 5.
- the laminated core 6 is connected to the rotor shaft 5 in a rotationally fixed manner.
- the laminated core 6 is thus connected to the rotor shaft 5 in such a way that relative rotations between the laminated core 6 and the rotor shaft 5 about the machine rotation axis 4 are avoided.
- the laminated core 6 is very preferably (also) connected to the rotor shaft 5 in such a way that relative movements between the laminated core 6 and the rotor shaft 5 in the axial direction of the rotor 1 and thus of the electrical machine are avoided.
- the axial direction of the rotor 1 and thus of the electrical machine as a whole coincides with the machine rotation axis 4 and is illustrated in Fig. 1 by a double arrow 7.
- the laminated core 6 has two axial end faces pointing away from each other in the axial direction, i.e. facing away from each other, namely a first axial end face 9 and a second axial end face 10.
- a first star disk 11 of the rotor 1 adjoins the first axial end face 9 and thus the laminated core 6, wherein the star disk 11 is formed separately from the laminated core 6 and separately from the rotor shaft 5.
- the star disk 11 is arranged on the first axial end face 9.
- a second star disk 12 of the rotor 1 adjoins the second axial end face 10 and thus the laminated core 6, wherein the star disk 12 is formed separately from the laminated core 6, separately from the rotor shaft 5 and separately from the star disk 11.
- the laminated core 6 is thus arranged in the axial direction of the rotor 1 between the star disks 11 and 12. It can also be seen that the laminated core 6 ends on both sides at the axial end faces 9 and 10 in the axial direction of the rotor 1.
- the laminated core 6 and the star disks 11 and 12 are arranged on the rotor shaft 5.
- the respective star disk 11, 12 is preferably connected in a rotationally fixed manner to the rotor shaft 5.
- the rotor 1 also has windings 13, which are also referred to as rotor windings.
- the electrical machine is designed as an internal rotor synchronous machine.
- the laminated core 6 it would be conceivable for the laminated core 6 to be designed as a one-piece iron core. In other words, it is conceivable for the laminated core 6 to be integrally formed, i.e. made from a single piece.
- the laminated core 6 could be formed from several individual sheets that are formed separately from one another and connected to one another, which follow one another, for example, in the axial direction of the rotor 1 and/or in the circumferential direction of the rotor 1 and thus of the electrical machine running around the machine axis of rotation 4.
- the circumferential direction of the rotor 1 and thus of the electrical machine runs around the machine axis of rotation 4 and is illustrated in Fig. 2 by a double arrow 14.
- the laminated core 6 has an annular, central region 15, which is also referred to as a yoke or rotor yoke.
- the region 15 delimits a central through-opening 16 of the laminated core 6, wherein the through-opening 16 is penetrated by the rotor shaft 5.
- Poles 17 of the laminated core 6 protrude outwards from the region 15 in the radial direction of the rotor 1, wherein the poles 17 are arranged one after the other and spaced apart from one another in the circumferential direction (double arrow 14) of the rotor 1, in particular such that the poles 17 are evenly distributed in the circumferential direction of the rotor 1.
- a rotor groove 18 is formed between each two poles 17 adjacent in the circumferential direction of the rotor 1, so that the rotor grooves 18 are arranged one after the other in the circumferential direction of the rotor 1 and are in particular evenly distributed.
- the rotor windings are wound around the poles 17 and also around the star disks 11 and 12 in such a way that first length ranges of the rotor windings run in the rotor slots 18, second length ranges of the rotor windings protrude in the axial direction of the rotor 1 from the front side 9 and thereby form first winding heads of the rotor windings, and third length ranges of the rotor windings protrude in the axial direction of the rotor 1 from the front face 10 and form second winding heads of the rotor windings.
- the first winding heads are arranged on the first axial front face 9 and the second winding heads on the second axial front face 10.
- the star disk 11 is arranged in the axial direction of the rotor 1 between the respective first winding head and the laminated core 6, in particular the axial front face 9
- the second star disk 12 is arranged in the axial direction of the rotor 1 between the respective second winding head and the laminated core 6, in particular the second axial front face
- the laminated core 6 has pole shoes 19, in particular such that a respective pole shoe 19 is provided for each pole 17, wherein, for example, the respective pole shoe 19 is connected to the respective pole 17, in particular at an outer end of the respective pole 17 facing away from the region 15 in the radial direction of the rotor 1.
- the pole shoes 19 are arranged at respective ends of the poles 17 opposite the region 15 in the radial direction of the rotor 1, wherein the pole shoes 19 prevent the winding heads arranged between the region 15 (rotor yoke) and the pole shoes 19 from slipping off the poles 17 when the rotor 1 rotates about the machine axis of rotation 4 relative to the stator.
- cover slides 20 are arranged in the rotor slots 18, which close the rotor slots 18 outwards, in particular in the radial direction of the rotor 1, and prevent the rotor windings, in particular the first length regions, from being pressed out of the rotor slots 18.
- Fig. 3 shows the first star disk 11 as an example, whereby the previous and following statements on the star disk 11 can also be easily transferred to the star disk 12 and vice versa.
- the respective star disk arranged between the respective end face 9, 10 and the respective winding head
- the respective bandage 21 ensures additional stability and fixation of the respective star disk 11, 12.
- the respective star disk 11, 12 has a central region 22 corresponding in particular to the region 15, which is also referred to as a star disk yoke and at least in the Is substantially ring-shaped and delimits a respective through-opening 23, in particular such that the through-opening 23 is delimited, in particular directly, by an inner circumferential surface 24 of the region 22.
- the through-opening 23 is penetrated by the rotor shaft 5.
- webs 25 protrude outwards from the central region 22 in a star-shaped or star-like manner, which are arranged one after the other in the circumferential direction of the rotor 1 and spaced apart from one another, in particular such that the webs 5 are evenly distributed in the circumferential direction of the rotor 1.
- a respective web 25 is provided for each pole 17, so that, for example, the poles 17 in the axial direction of the rotor 1 are overlapped outwards by the respective webs 25 of the respective star disk 11, 12.
- the webs 25 are also referred to as support teeth, and the area 22 is also referred to, for example, as a ring carrier.
- the respective area 22 lies in the axial direction of the rotor 1, in particular directly, on the rotor yoke (area 15).
- the support teeth (webs 25) protrude outwards from the ring carrier (area 22) of the respective star disk 11, 12, which are arranged on the respective end face 9, 10 of the laminated core 6 so as to overlap with the poles 17.
- the rotor windings are guided via the support teeth from a respective rotor slot 15 into an adjacent rotor slot 15, so that the webs 25 are arranged in the axial direction of the rotor 1 between the poles 17 and the respective winding heads arranged on the respective end face 9, 10.
- the respective star disk 11, 12 has end pieces 26 which protrude axially from the webs 25 and can absorb centrifugal forces acting on the respective winding heads.
- the first winding heads are at least partially overlapped by the end pieces 26 of the star disk 11 in the radial direction of the rotor 1 towards the outside
- the second winding heads are at least partially overlapped by the end pieces 26 of the star disk 12 in the radial direction of the rotor 1 towards the outside.
- the first winding heads can be or are supported in some areas on the end pieces 26 of the star disk 11 or 12, while the second winding heads are supported in the radial direction of the rotor 1 towards the outside.
- the respective end piece 26 projects beyond the respective web 25, at the end of the respective web 25 opposite the region 22 in the radial direction of the rotor 1, in particular on both sides in the circumferential direction of the rotor 1 running around the machine axis of rotation and thus around the axial direction of the rotor 1.
- the first winding heads are designated 27 and the second winding heads are designated 28.
- the rotor 1 has a shaft nut 29 which adjoins the star disk 11 in the axial direction of the rotor 1 and is screwed directly onto the rotor shaft 5, by means of which the star disk 11 is clamped in the axial direction of the rotor 1 against the laminated core 6, in particular against the front side 9.
- the star disk 11 adjoins the first axial front side 9 of the laminated core 6 in the axial direction of the rotor 1, with the star disk 11 lying directly against the front side 9 in the axial direction of the rotor 1 and thus being directly supported on the front side 9.
- the star disk 11 is clamped directly against the first axial front side 9 in the axial direction of the rotor 1 by means of the shaft nut 29.
- the star disk 11 has a first side 30 facing away from the laminated core 6 in the axial direction of the rotor 1 and facing the shaft nut 29, wherein the shaft nut 29 lies directly against the side 30 in the axial direction of the rotor 1. Because the shaft nut 29 is screwed directly onto the rotor shaft 5, and is therefore screwed directly to the rotor shaft 5, the shaft nut 29 is clamped directly against the side 30 of the star disk 11 in the axial direction of the rotor 1.
- the rotor shaft 5 From the second axial end face 10 of the laminated core 6, which points away from the first axial end face 9 in the axial direction of the rotor 1, the rotor shaft 5 has a collar 31 which is formed in one piece with the rotor shaft 5 and is also referred to as a shaft collar, the laminated core 6 being indirectly supported on the collar 31 in the axial direction of the rotor 1 and being clamped indirectly against the collar 31 in the axial direction of the rotor 1 by means of the shaft nut 29 in such a way that the separate, second star disk 12 is arranged between the collar 31 and the second axial end face 10 in the axial direction of the rotor 1.
- the laminated core 6 is supported on the collar 31 in the axial direction of the rotor 1 by means of the second star disk 12 and is clamped against the collar 31 in the axial direction of the rotor 1 by means of the shaft nut 29.
- the second star disk 12 lies directly on the second axial end face 10 and has a second side 32 pointing away from the end face 10 in the axial direction of the rotor 1 and thus away from the laminated core 6, the star disk 11 and the shaft nut 29, which lies directly on the collar 31.
- the collar 31 lies directly on the second side 32 in the axial direction of the rotor 1.
- the respective star disk 11, 12 is also referred to as the first component, for example, and the laminated core 6 is also referred to as the second component.
- one of the components in particular the respective star disk 11, 12, has at least one or more projections which, for example, engage in at least one or more corresponding recess or recesses, so that, for example, the respective star disk 11, 12 interacts with the laminated core 6 in a form-fitting manner such that relative rotations between the respective star disk 11, 12 and the laminated core 6 in the circumferential direction of the rotor 1 are avoided, and thus the respective star disk 11, 12 and the laminated core 6 are connected to one another in a form-fitting, rotationally fixed manner.
- the respective star disk 11, 12 has at least one or more projections which, for example, engage in at least one or more corresponding recess or recesses, so that, for example, the respective star disk 11, 12 interacts with the laminated core 6 in a form-fitting manner such that relative rotations between the respective star disk 11, 12 and the laminated core 6 in the circumferential direction of the rotor 1 are avoided, and thus the respective star disk 11, 12 and the laminated core 6 are connected to one another in
- the star disk 11 has at least one projection 33 which engages in a corresponding recess 34 of the laminated core 6, whereby the star disk 11 and the laminated core 6 are connected to one another in a form-fitting, rotationally fixed manner, in this case in such a way that relative rotations between the laminated core 6 and the star disk 11 around the machine rotation axis 4 and thus in the circumferential direction of the rotor 1 are avoided.
- the respective star disk 11, 12 does not itself have to be directly connected in a rotationally fixed manner to the rotor shaft 5.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202480005523.7A CN120380686A (zh) | 2023-03-03 | 2024-02-06 | 用于尤其是机动车辆的电机的转子以及尤其是用于机动车辆的电机 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023105236.5 | 2023-03-03 | ||
| DE102023105236.5A DE102023105236A1 (de) | 2023-03-03 | 2023-03-03 | Rotor für eine elektrische Maschine, insbesondere eines Kraftfahrzeugs, sowie elektrische Maschine, insbesondere für ein Kraftfahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024183997A1 true WO2024183997A1 (de) | 2024-09-12 |
Family
ID=89897223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2024/052873 Ceased WO2024183997A1 (de) | 2023-03-03 | 2024-02-06 | Rotor für eine elektrische maschine, insbesondere eines kraftfahrzeugs, sowie elektrische maschine, insbesondere für ein kraftfahrzeug |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN120380686A (de) |
| DE (1) | DE102023105236A1 (de) |
| WO (1) | WO2024183997A1 (de) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1450521A (en) | 1921-12-31 | 1923-04-03 | Leo Podgorsek | Armature for dynamo-electric machines |
| DE647315C (de) | 1931-01-30 | 1937-07-01 | Aeg | Elektrische Maschine, insbesondere fuer kleinere Leistungen |
| JPS433121Y1 (de) * | 1965-07-05 | 1968-02-09 | ||
| US3694906A (en) * | 1971-10-14 | 1972-10-03 | Gen Motors Corp | Method for manufacturing a high speed squirrel cage rotor |
| DE102013208856A1 (de) | 2013-05-14 | 2014-11-20 | Schaeffler Technologies Gmbh & Co. Kg | Läufer eines Schwungmassenspeichers |
| KR20190058339A (ko) * | 2017-11-20 | 2019-05-29 | 한국전기연구원 | 전동기의 회전자, 그를 가지는 전동기, 그를 가지는 과급기 및 전동기의 조립방법 |
| DE102018009845A1 (de) | 2018-12-14 | 2019-06-27 | Daimler Ag | Rotor für eine elektrische Maschine, insbesondere eines Kraftfahrzeugs |
| WO2020099048A1 (de) | 2018-11-14 | 2020-05-22 | Bayerische Motoren Werke Aktiengesellschaft | Stützeinrichtung für einen rotor einer fremderregten innenläufer-synchronmaschine bestehend aus einem stützring und einer sternscheibe |
| DE102020203483A1 (de) | 2020-03-18 | 2021-09-23 | Mahle International Gmbh | Rotor eines Elektromotors |
| DE102020112037A1 (de) | 2020-05-05 | 2021-11-11 | Audi Aktiengesellschaft | Rotor für eine elektrische Maschine |
| DE102020113110A1 (de) * | 2020-05-14 | 2021-11-18 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Herstellen eines Rotors sowie Rotor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US404713A (en) * | 1889-06-04 | Fourths to joseph it | ||
| US538344A (en) * | 1895-04-30 | Harry penn and loft us lowndes | ||
| GB388100A (en) * | 1930-10-29 | 1933-02-23 | Siemens Ag | Improvements in squirrel cage rotors for induction motors subjected to axial vibration |
-
2023
- 2023-03-03 DE DE102023105236.5A patent/DE102023105236A1/de active Pending
-
2024
- 2024-02-06 CN CN202480005523.7A patent/CN120380686A/zh active Pending
- 2024-02-06 WO PCT/EP2024/052873 patent/WO2024183997A1/de not_active Ceased
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1450521A (en) | 1921-12-31 | 1923-04-03 | Leo Podgorsek | Armature for dynamo-electric machines |
| DE647315C (de) | 1931-01-30 | 1937-07-01 | Aeg | Elektrische Maschine, insbesondere fuer kleinere Leistungen |
| JPS433121Y1 (de) * | 1965-07-05 | 1968-02-09 | ||
| US3694906A (en) * | 1971-10-14 | 1972-10-03 | Gen Motors Corp | Method for manufacturing a high speed squirrel cage rotor |
| DE102013208856A1 (de) | 2013-05-14 | 2014-11-20 | Schaeffler Technologies Gmbh & Co. Kg | Läufer eines Schwungmassenspeichers |
| KR20190058339A (ko) * | 2017-11-20 | 2019-05-29 | 한국전기연구원 | 전동기의 회전자, 그를 가지는 전동기, 그를 가지는 과급기 및 전동기의 조립방법 |
| WO2020099048A1 (de) | 2018-11-14 | 2020-05-22 | Bayerische Motoren Werke Aktiengesellschaft | Stützeinrichtung für einen rotor einer fremderregten innenläufer-synchronmaschine bestehend aus einem stützring und einer sternscheibe |
| DE102018009845A1 (de) | 2018-12-14 | 2019-06-27 | Daimler Ag | Rotor für eine elektrische Maschine, insbesondere eines Kraftfahrzeugs |
| DE102020203483A1 (de) | 2020-03-18 | 2021-09-23 | Mahle International Gmbh | Rotor eines Elektromotors |
| DE102020112037A1 (de) | 2020-05-05 | 2021-11-11 | Audi Aktiengesellschaft | Rotor für eine elektrische Maschine |
| DE102020113110A1 (de) * | 2020-05-14 | 2021-11-18 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Herstellen eines Rotors sowie Rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102023105236A1 (de) | 2024-09-05 |
| CN120380686A (zh) | 2025-07-25 |
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