DE102022213184A1 - Drive unit for driving a vehicle or a wind turbine - Google Patents

Abstract

The invention relates to a drive unit (1) comprising an electric machine which has a rotor extending in the axial direction (A) and a stator arranged around the rotor in the radial direction (R), wherein the rotor has a rotor carrier (2), further comprising a first planetary gear set which has at least a first sun (5) and a first ring gear (4), and a second planetary gear set which is axially adjacent to the first planetary gear set and has at least a second sun (8) and a second ring gear (7), wherein a multifunctional perforated disk (10) with a first outer driving toothing (11) and an inner second driving toothing (12) is provided, wherein the multifunctional perforated disk (10) is arranged between the first planetary gear set and the second planetary gear set and wherein the rotor carrier (2) has an internal toothing section with an internal toothing (14) and the first sun (5) has a sun toothing section with an external sun toothing (13), and wherein the multifunctional perforated disk (10) is connected by means of a first Retaining ring (15) on the first sun (5) and by means of a second retaining ring on the rotor carrier (2) and wherein the rotor carrier (2) is in engagement with the first outer driving toothing (11) of the multifunctional perforated disk (10) via the internal toothing (14) and the first sun (5) is in engagement with the inner second driving toothing (12) of the multifunctional perforated disk (10) via the sun toothing (13), so that the rotor carrier (2) is in indirect engagement with the first sun (5).

Description

The invention relates to a drive unit for driving a vehicle or wind turbine comprising an electric machine which has a rotor extending in the axial direction and a stator arranged around the rotor in the radial direction, wherein the rotor has a rotor carrier and further comprising a first planetary gear set which has at least a first sun and a first ring gear, and a second planetary gear set which is axially adjacent to the first planetary gear set and has at least a second sun and a second ring gear.

Many different drive units are known in the state of the art that are used in motor vehicles or wind turbines. For example, drive units with at least one planetary gear set are known, for example hybrid drives.

The EN 10 2017 210 571 A1 discloses a transmission for a motor vehicle, having a rotor shaft which can be driven by an electric machine, and a planetary gear set, wherein the rotor shaft has an internal toothing in a ring gear receiving section which is in engagement with an external toothing of a ring gear of the planetary gear set and the rotor shaft has a rotor receiving section for receiving a rotor, wherein the rotor shaft is bent between the rotor receiving section and the ring gear receiving section.

The EN 10 2017 210 570 A1 discloses a transmission for a motor vehicle, having a rotor shaft which can be driven by an electric machine, and a planetary gear set, wherein the rotor shaft has an internal toothing in a ring gear receiving section which is in engagement with an external toothing of a ring gear of the planetary gear set and the rotor shaft has a rotor receiving section for receiving a rotor, wherein the rotor shaft is bent between the rotor receiving section and the ring gear receiving section.

The EN 10 2008 040 495 A1 discloses a rotor carrier of an electric machine of a hybrid drive train of a motor vehicle, the rotor of which is connected to the ring gear of a planetary gear serving as a summation gear, which is connected to the gear input or can be detachably connected, wherein the magnetically active part of the rotor of the electric machine is fastened to the rotor carrier and guided by it and wherein the rotor carrier is provided with a toothing which serves as a ring gear of the planetary gear.

Such drive units must handle a variety of tasks, such as adequate cooling of the rotor or lubrication of the planetary gears, whereby the lubricating oil must be drained away as easily as possible.

It is an object of the present invention to provide an improved drive unit, in particular for a vehicle or a wind turbine.

The object is achieved by a drive unit with the features of claim 1 and a vehicle and/or wind transmission with the features of claim 14. The subclaims list further advantageous measures which can be suitably combined with one another in order to achieve further advantages.

The object is achieved by a drive unit comprising an electric machine which has a rotor extending in the axial direction and a stator arranged around the rotor in the radial direction, wherein the rotor has a rotor carrier and further comprising a first planetary gear set which has at least a first sun and a first ring gear, and
a second planetary gear set axially adjacent to the first planetary gear set, which has at least a second sun and a second ring gear,
and where
a multi-function perforated disk with a first outer driving toothing and an inner second driving toothing is provided, wherein the multi-function perforated disk is arranged adjacent between the first planetary gear set and the second planetary gear set and wherein the rotor carrier has a
Internal toothing section with an internal toothing and the first sun has a sun toothing section with an external sun toothing and wherein the multifunctional perforated disk is axially secured to the first sun by means of a first locking ring and to the rotor carrier by means of a second locking ring and wherein the rotor carrier is in engagement with the first outer driving toothing of the multifunctional perforated disk via the internal toothing and the first sun is in engagement with the inner second driving toothing of the multifunctional perforated disk via the sun toothing, so that the rotor carrier is in indirect engagement with the first sun.

The rotor carrier can carry a magnetic part of the rotor, for example the laminated core, via a rotor carrier section. In particular, the laminated core can be arranged essentially on the rotor carrier section above the second planetary gear set.

The rotor carrier has an axial section with internal teeth and the first sun has an axial section with external teeth as sun teeth.

The first driving toothing of the multifunctional perforated disc can extend over an axial section of the multifunctional perforated disc as an external toothing. In particular, this is arranged in an axial middle area of the multifunctional perforated disc.

The second driving toothing is arranged as an internal toothing in the hole of the multifunctional perforated disk. In particular, the hole can be arranged centrally in the multifunctional perforated disk. The second driving toothing of the multifunctional perforated disk can also extend over an axial section as an internal toothing. The first and second driving toothing of the multifunctional perforated disk can, but do not have to, be directly opposite each other, and they can also have a different axial width.

Furthermore, the first planetary gear set is connected to the second planetary gear set via, for example, a web, so that both the first planetary gear set and the second planetary gear set are driven via the multifunctional perforated disk.

The sun carries the sun gear as a driving gear, which is designed as an external gear, as well as another external gear, which is in engagement with a planet, for example. The sun gear can be designed on the sun wheel or the sun shaft.

Such a multifunctional perforated disk means that the first sun is indirectly engaged with the rotor carrier. This allows the speed and torque of the rotor to be transferred to the first sun.

The retaining rings, i.e. the first and second retaining rings, secure the multi-function perforated disc axially.

The multi-function perforated disk also defines the location and position of the sun. The first and second planetary gear sets are arranged axially adjacent to the multi-function perforated disk.

By means of the multifunctional perforated disk according to the invention, i.e. by means of such a drive unit according to the invention, the forces occurring in the first planetary gear set can be diverted essentially via the multifunctional perforated disk, since the axially and radially acting forces of the first planetary gear set can be absorbed by the multifunctional perforated disk arranged in this way.

This enables load balancing of the first planetary gear set.

In a further embodiment, the first sun has a sun groove, wherein the second locking ring is arranged in the sun groove, wherein the sun groove is arranged in the direction of the rotor carrier in the first sun. The sun groove is designed in particular as a circumferential annular groove.

The sun groove can be arranged in the sun in the area of the second planetary gear set, i.e. axially adjacent to it, and thus ensure axial safety of the multifunctional perforated disc.

In a further embodiment, the rotor carrier has a rotor carrier groove, wherein the first locking ring is arranged in the rotor carrier groove, wherein the rotor carrier groove is arranged in the direction of the first sun in the rotor carrier. The rotor carrier groove is designed in particular as a circumferential annular groove.

The rotor carrier groove in the rotor carrier can be arranged in the area of the second planetary gear set, i.e. axially adjacent to it, and thus ensure axial safety of the multifunctional perforated disc.

This makes it easy to secure the multi-function hole disc axially.

In a further embodiment, at least a first fluid channel and a separate second fluid channel are provided in the multifunctional perforated disc,
which extend in the radial direction in the multi-function perforated disk, wherein the first fluid channel in the direction of the rotor carrier has a first fluid outlet which is arranged adjacent to the first planetary gear set, for passing a cooling fluid in the radial direction through the multi-function perforated disk for cooling a first rotor carrier section radially above the first planetary gear set and wherein
the second fluid channel has a second fluid outlet in the direction of the rotor carrier,
which is arranged adjacent to the second planetary gear set, for passing the cooling fluid in the radial direction through the multifunctional perforated disk for cooling a second rotor carrier section radially above the second planetary gear set.

This allows the cooling fluid, such as oil, to pass through the multi-function perforated disc without mixing with the oil coming from the planetary gear sets.

Due to the rotation, the oil flows through the fluid channels and then along the first rotor carrier section and the second rotor carrier section, thus cooling the rotor carrier. The "cold" fluid, in this case oil shielded by the two planetary gear sets, is brought to an inner diameter of the rotor through the fluid channels, i.e. to the rotor carrier on both sides of the multifunctional perforated disk, without mixing with the heated oil from the planetary gear sets. This enables improved cooling of the rotor.

Furthermore, in a further embodiment, a fluid distribution pocket is provided which is arranged at least partially in the multifunctional perforated disk at the radial end opposite the rotor carrier and which is fluidically connected on the one hand to the first fluid channel and the second fluid channel for supplying the fluid channels with cooling fluid and on the other hand is fluidically connected to a supply of cooling fluid.

This means that the fluid distribution pocket is arranged radially above the first sun. The fluid distribution pocket, in particular an oil distribution pocket, is designed as a cavity/recess and is arranged completely in the multifunctional perforated disk. From there, the fluid, in this case the oil, can be guided through the multifunctional perforated disk using the fluid channels to cool the rotor in order to cool the rotor efficiently.

The supply, for example a bore, can be provided which leads through surrounding components, for example a housing, to the fluid distribution pocket, to supply the fluid distribution pocket with sufficient fluid. Due to the rotation, the fluid can flow through the fluid distribution pocket and the fluid channels itself or driven by a pump to the rotor. Several fluid distribution pockets can be provided, or they can also be designed to run all the way around. Furthermore, several fluid channels can be introduced around the circumference in the multifunctional perforated disk.

Such a fluid distribution pocket enables easy flow of fluid to the two fluid channels.

In a further embodiment, at least the two first and second fluid channels are designed as bores. This enables simple production.

Furthermore, a plurality of first fluid channels and second fluid channels can be provided, wherein the first fluid channel and the second fluid channel are each arranged alternately and equidistantly over a circumference of the multifunctional perforated disk in the multifunctional perforated disk. As a result, more and/or more targeted cooling fluid can be guided to the rotor carrier.

In a further embodiment, a first side of the multi-function perforated disk facing the first planetary gear set has a first bulge pointing towards the interior of the multi-function perforated disk as a first fluid collection region, wherein the first bulge pointing towards the rotor carrier has a fluid guide region bent towards the first planetary gear set for the outflow of a fluid between the first ring gear and the rotor carrier, which then flows in particular to the first rotor carrier section radially above the first planetary gear set.

This means that the fluid guide area is bent towards the rotor carrier. Hot fluid, such as oil, spraying out/flowing from the first planetary gear set can be caught by such a first bulge. The rotation causes the caught hot oil to flow to the fluid guide area, which guides the hot oil between the first ring gear and the rotor carrier to, for example, a rear part of the first rotor carrier section and from there, for example, drains it away via an outlet hole in the housing. This allows the hot oil to be drained away. Mixing of the cooling fluid with the hot oil as soon as the hot oil escapes from the planetary gear set can thus be avoided.

In a further embodiment, a second side of the multi-function perforated disk facing the second planetary gear set has a second bulge pointing towards the interior of the multi-function perforated disk as a second fluid collection area.

This allows the oil flowing out/spraying out of the second planetary gear set to be collected.

Furthermore, the second bulge can have an annular groove at the end facing the rotor carrier for catching or collecting a fluid flowing along the second bulge.

In a further embodiment, the multifunctional perforated disc has at least one transverse fluid channel which extends from the second bulge to the first bulge.

In particular, the transverse fluid channel extends from the annular groove to the fluid guide area the first bulge. This allows the collected oil from the second planetary gear set to flow out via the transverse fluid channel and then be guided between the first ring gear and the rotor carrier to the outlet bore.

In particular, the fluid guide region of the first bulge is arranged in the radial direction closer to the rotor carrier than the annular groove, so that the transverse fluid channel extends obliquely radially from the annular groove in the direction of the rotor carrier to the fluid guide region of the first bulge.

As a result, the transverse fluid channel runs at an angle, almost in the direction of the rotor carrier. This means that the collected hot fluid, in this case oil from the second planetary gear set, can automatically flow to the fluid guide area of the first bulge due to the rotation and from there be discharged from the rotor carrier.

In particular, the transverse fluid channel is designed as a transverse bore. Several such transverse bores can also be easily introduced.

In particular, the second planetary gear set is arranged in the direction of an output flange.

Furthermore, the object is achieved by a vehicle or a wind gearbox with a drive unit as described above. The wind gearbox can in particular be part of a wind turbine.

• 1: eine Antriebseinheit gemäß der Erfindung,
• 2: eine Multifunktionslochscheibe,
• 3: die Multifunktionslochscheibe mit Bohrungen,
• 4: die Multifunktionslochscheibe mit erster Ausbuchtung,
• 5: die Multifunktionslochscheibe mit zweiter Ausbuchtung,
• 6: die Multifunktionslochscheibe mit Querbohrung,
• 7: einen sich ausbildenden Heißpfad und einen Kühlpfad in der Multifunktionslochscheibe.

Further features and advantages of the present invention will become apparent from the following description with reference to the accompanying figures, which schematically show:

• 1 : a drive unit according to the invention,
• 2 : a multifunctional perforated disc,
• 3 : the multifunctional hole disc with holes,
• 4 : the multifunctional hole disc with first bulge,
• 5 : the multifunctional hole disc with second bulge,
• 6 : the multifunctional hole disc with cross hole,
• 7 : a developing hot path and a cooling path in the multifunctional perforated disc.

1 shows a drive unit 1 according to the invention. This has an electrical machine which comprises a rotor (not shown) which extends in an axial direction A. The axial direction A extends in a direction of rotation of the rotor.

The rotor (not shown) comprises a rotor carrier 2, which carries a laminated core 3.

Furthermore, a stator (not shown) is arranged in a radial direction R above the rotor.

Furthermore, the electric drive unit 1 has a first planetary gear set, which has a first ring gear 4 and a first sun 5. Furthermore, one or more planetary gears can also be present.

Radially above the first planetary gear set, a first rotor carrier section 6 is formed by the rotor carrier 2.

Axially adjacent to the first planetary gear set is a second planetary gear set which has a second ring gear 7 and a second sun 8. Furthermore, one or more planetary gears can also be present.

Radially above the second planetary gear set, a second rotor carrier section 9 is formed by the rotor carrier 2.

The second planetary gear set can be arranged in the direction of an output flange.

A multifunctional perforated disk 10 is arranged between the first and the second planetary gear set. This means that the multifunctional perforated disk 10 is arranged axially adjacent to the first planetary gear set as well as the second planetary gear set.

2 shows the multifunctional perforated disc 10 as a whole from the outside. The multifunctional perforated disc 10 has a radial hole on the inside, such that the hole extends radially around the center of the multifunctional perforated disc 10.

The multifunctional perforated disc 10 has an axial outer section with a first outer driving toothing 11 and an axial inner section of the “hole” with an inner second driving toothing 12.

The outer driving toothing 11 is designed as an external toothing and the inner second driving toothing 12 is designed as an internal toothing.

The first sun 5 has an axial sun gear section with a sun gear 13 as driving gear, which serves as External gearing is formed, as well as, for example, another external gearing which is in engagement with, for example, a planet.

The sun gear 13 can be formed on the sun gear or the sun shaft.

The sun gear 13 is in engagement with the inner second driving gear 12 of the multifunctional perforated disc 10 ( 1 ).

Furthermore, the rotor carrier 2 has an internal toothing section with an internal toothing 14, which is in engagement with the first external driving toothing 11 of the multifunctional perforated disk 10. Thus, the rotor carrier 2 is indirectly in engagement with the first sun 5. In particular, the internal toothing section is arranged between the second rotor carrier section 9 and the first rotor carrier section 6.

By means of the multifunctional perforated disk 10, the speed and torque of the rotor or the rotor carrier 2 can be transmitted to the first sun 5, i.e. to the first planetary gear set.

The first planetary gear set and the second planetary gear set can be connected by means of a web (not shown), so that the second planetary gear set is also indirectly driven by means of the multifunctional perforated disk 10.

Furthermore, the drive unit 1 has a first locking ring 15 ( 3 ) which is mounted in a rotor carrier groove 16 ( 3 ) of the rotor carrier 2, wherein the rotor carrier groove 16 ( 3 ) is designed as an annular groove. The first locking ring 15 is arranged facing the second planetary gear set.

Furthermore, the first sun 5 has a sun groove (not shown) pointing towards the rotor carrier 2, which is also designed as an annular groove.

The drive unit 1 further comprises a second retaining ring (not shown) which is arranged in the sun groove (not shown). The second retaining ring (not shown) is also arranged facing the second planetary gear set, i.e. is arranged axially adjacent to it.

The multifunctional perforated disk 10 is axially fixed by the first locking ring 15 and the second locking ring (not shown). Furthermore, it is radially fixed by the first sun 5 and the rotor carrier 2. This easily secures the multifunctional perforated disk 10 radially and axially.

Furthermore, the position and location of the first sun 5 is determined by the multifunctional perforated disk 10.

Due to the multi-function perforated disk 10 arranged in this way, the axial and radial forces acting on the first planetary gear set can essentially be diverted via the multi-function perforated disk 10, i.e. can be absorbed by this arrangement.

This enables load balancing of the first planetary gear set.

Furthermore, as in 3 As shown, the multifunctional perforated disk 10 also has a first bore 17 designed as a first fluid channel and a separate second bore 18 designed as a second fluid channel in the multifunctional perforated disk 10, which extend in the radial direction R in the multifunctional perforated disk 10. The first bore 17 has a first fluid outlet 19, which is arranged adjacent to the first planetary gear set, for passing a cooling oil in the radial direction R through the multifunctional perforated disk 10.

The cooling oil thus guided flows to the first rotor carrier section 6 and cools it.

Furthermore, the second bore 18 has a second fluid outlet 20, which is arranged adjacent to the second planetary gear set, for passing the cooling oil in the radial direction R through the multifunctional perforated disk 10 to the second rotor carrier section 9.

As a result, the cooling fluid, for example oil here, is guided through the multifunctional perforated disk 10 without mixing with the hot oil, which is sprayed/flowed off the planetary gear sets, for example. Due to the rotation, the oil then flows along the first rotor carrier section 6 and the second rotor carrier section 9 and cools them.

A fluid distribution pocket 21 is provided, for which oil is used as the fluid, which is connected to the two bores 17, 18. The fluid distribution pocket 21 is arranged radially above the first sun 5.

The fluid distribution pocket 21 is thus arranged within the multifunctional perforated disk 10 and supplies both holes 17, 18 with cooling oil. The fluid distribution pocket 21 can be designed as a recess and have a supply (not shown) for the cooling oil. The supply can be a hole through surrounding components, for example a housing, wherein the hole the fluid distribution pocket 21.

Such a fluid distribution pocket 21 enables easy flow of cooling oil to the two bores 17, 18.

Furthermore, the multifunctional perforated disk 10 has a first bulge 22 towards the interior of the multifunctional perforated disk 10. The first bulge 22 is arranged on a first side 23 of the multifunctional perforated disk 10 facing the first planetary gear set.

4 shows such a bulge 22 along a section BB of the multifunctional perforated disc 10 in detail.

The first bulge 22 has a curved fluid guide region 24 pointing towards the rotor carrier 2.

The first planetary gear set is also cooled with oil. When the first planetary gear set is cooled, this oil sprays off and is collected by the first bulge 22. The first bulge 22 thus serves as a collecting area for the hot oil coming from the first planetary gear set.

The hot oil collected in this way is caused by the rotation along the bulge 22 to flow in the direction of the rotor carrier 2 and thus in the direction of the curved fluid guide region 24. The fluid guide region 24 directs the hot oil between the first ring gear 4 and the rotor carrier 2 to, for example, a rear part of the first rotor carrier section 6 and from there, for example, by means of an outlet bore (not shown) in the housing out of the rotor carrier 2.

Furthermore, the cooling oil flowing through the first bore 17 after cooling the first rotor carrier section 6 can also be drained off through such an outlet bore (not shown).

Furthermore, the multifunctional perforated disk 10 has a second bulge 25 towards the interior of the multifunctional perforated disk 10. The second bulge 25 is arranged on a second side 26 of the multifunctional perforated disk 10 facing the second planetary gear set.

5 shows the bulge 25 along another section BB of the multifunctional perforated disc 10 in detail.

The second planetary gear set is also cooled with oil. When the second planetary gear set is cooled, this oil splashes off and is collected by the second bulge 25. The second bulge 25 serves as a collecting area for the hot oil coming from the second planetary gear set.

Furthermore, the second bulge 25 has an annular groove (not shown) at the end facing the rotor carrier 2 for catching or collecting the oil which sprays out from the second planetary gear set and flows towards the rotor carrier 2 due to the rotation.

Furthermore, the multifunctional perforated disc 10 has at least one transverse bore 27 which extends from the annular groove (not shown) of the second bulge 25 to the first bulge 22.

6 shows such a transverse bore 27 along a section CC of the multifunctional perforated disc 10.

In particular, the fluid guide region 24 of the first bulge 22 is arranged closer to the rotor carrier 2 in the radial direction R than the annular groove (not shown), so that the transverse bore 27 extends obliquely radially from the annular groove in the direction of the rotor carrier 2 to the fluid guide region 24 of the first bulge 22.

As a result, the transverse bore 27 runs obliquely, almost in the direction of the rotor carrier 2. Thus, the collected hot oil from the second planetary gear set can automatically flow to the fluid guide area 24 of the first bulge 22 due to the rotation and from there be guided out of the rotor carrier 2 through an outlet bore (not shown).

7 shows the oil flow of the cool cooling oil as well as the hot oil collected from the two planetary gear sets.

As a result of the rotation, the cool cooling oil flows (cooling path 28) from the fluid distribution pocket 21 through the bores 17, 18 and cools the first rotor carrier section 6 as well as the second rotor carrier section 9.

The hot oil from the planetary gear sets flows (hot path 29) into the bulges 22,25 and, due to the rotation, from there via the transverse bore 27 or directly to an output bore.

This allows the hot oil to be drained away. Mixing of the cooling fluid with the hot oil before cooling down when the hot oil escapes from the planetary gear sets can thus be avoided.

As a result, the “cold” fluid, here oil, is shielded by the two planetary gear sets and brought to an inner diameter of the rotor, ie to the rotor carrier 2, without coming into contact with the heated Oil from the planetary gear sets. Such a drive unit 1 enables improved cooling of the rotor carrier 2.

Furthermore, load balancing of the first planetary gear set can be made possible by absorbing radial and axial forces through the multi-function perforated disk 10.

The position and orientation of the first sun 5 are also clearly determined by the drive unit 1 according to the invention.

Furthermore, the speed and torque of the rotor can be transmitted to the first sun 5 by the drive unit 1 according to the invention.

List of reference symbols

1

Drive unit

2

Rotor carrier

3

Sheet metal package

4

first ring gear

5

first sun

6

first rotor carrier section

7

second ring gear

8th

second sun

9

second rotor carrier section

10

Multifunctional hole disc

11

first external driving gear

12

second inner driving gear

13

Solar gearing

14

Internal gearing

15

first retaining ring

16

Rotor carrier groove

17

first drilling

18

second hole

19

first fluid outlet

20

second fluid outlet

21

Fluid distribution bag

22

first bulge

23

first page of the multifunctional hole disc

24

Fluid guidance area

25

second bulge

26

second side of the multifunctional hole disc

27

Cross hole

28

Cooling path

29

Hot path

R

radial direction

A

axial direction

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions.

Cited patent literature

• DE 102017210571 A1 [0003]
• DE 102017210570 A1 [0004]
• DE 102008040495 A1 [0005]

Claims (14)

Drive unit (1) comprising an electric machine which has a rotor extending in the axial direction (A) and a stator arranged around the rotor in the radial direction (R), wherein the rotor has a rotor carrier (2), further comprising a first planetary gear set which has at least a first sun (5) and a first ring gear (4), and a second planetary gear set which is axially adjacent to the first planetary gear set and has at least a second sun (8) and a second ring gear (7), characterized in that a multifunctional perforated disk (10) with a first outer driving toothing (11) and an inner second driving toothing (12) is provided, wherein the multifunctional perforated disk (10) is arranged between the first planetary gear set and the second planetary gear set and wherein the rotor carrier (2) has an internal toothing section with an internal toothing (14) and the first sun (5) has a sun toothing section with an external sun toothing (13), and wherein the multifunctional perforated disk (10) is connected by means of a first Retaining ring (15) on the first sun (5) and by means of a second retaining ring on the rotor carrier (2) and wherein the rotor carrier (2) is in engagement with the first outer driving toothing (11) of the multifunctional perforated disk (10) via the internal toothing (14) and the first sun (5) is in engagement with the inner second driving toothing (12) of the multifunctional perforated disk (10) via the sun toothing (13), so that the rotor carrier (2) is in indirect engagement with the first sun (5). Drive unit (1) after Claim 1 , characterized in that the first sun (5) has a sun groove, wherein the second locking ring is arranged in the sun groove, wherein the sun groove is arranged in the direction of the rotor carrier (2) in the first sun (5). Drive unit (1) after Claim 1 or 2 , characterized in that the rotor carrier (2) has a rotor carrier groove (16), wherein the first locking ring (15) is arranged in the rotor carrier groove (16), wherein the rotor carrier groove (16) is arranged in the direction of the first sun (5) in the rotor carrier (2). Drive unit (1) according to one of the preceding claims, characterized in that at least a first fluid channel and a separate second fluid channel are provided in the multifunctional perforated disk (10), which extend in the radial direction (R) in the multifunctional perforated disk (10), wherein the first fluid channel in the direction of the rotor carrier (2) has a first fluid outlet (19) which is arranged adjacent to the first planetary gear set, for passing a cooling fluid in the radial direction (R) through the multifunctional perforated disk (10) for cooling a first rotor carrier section (6) radially above the first planetary gear set, and the second fluid channel in the direction of the rotor carrier (2) has a second fluid outlet (20) which is arranged adjacent to the second planetary gear set, for passing the cooling fluid in the radial direction (R) through the multifunctional perforated disk (10) for cooling a second rotor carrier section (9) radially above the second planetary gear set. Drive unit (1) after Claim 4 , characterized in that a fluid distribution pocket (21) is provided which is arranged at the radial end opposite the rotor carrier (2) at least partially in the multifunctional perforated disk (10), and which is fluidically connected on the one hand to the first fluid channel and the second fluid channel for supplying the fluid channels with cooling fluid and on the other hand is fluidically connected to a supply of cooling fluid. Drive unit (1) after Claim 4 or 5 , characterized in that the at least two first and second fluid channels are designed as bores (17,18). Drive unit (1) according to one of the preceding Claims 4 until 6 , characterized in that a plurality of first fluid channels and second fluid channels are provided, wherein the first fluid channel and the second fluid channel are each arranged alternately and equidistantly over a circumference of the multifunctional perforated disc (10) in the multifunctional perforated disc (10). Drive unit (1) according to one of the preceding claims, characterized in that a first side (23) of the multifunctional perforated disk (10) facing the first planetary gear set has a first bulge (22) pointing towards the interior of the multifunctional perforated disk (10) as a first fluid collection region, wherein the first bulge (22) pointing towards the rotor carrier (2) has a fluid guide region (24) bent towards the first planetary gear set for the outflow of a fluid between the first ring gear (4) and the rotor carrier (2). Drive unit (1) after Claim 8 , characterized in that a second side (26) of the multifunctional perforated disc (10) facing the second planetary gear set has a second bulge (25) as a second fluid collecting area. Drive unit (1) after Claim 9 , characterized in that the second bulge (25) has an annular groove at the end facing the rotor carrier (2) for collecting a fluid flowing along the second bulge (25). Drive unit (1) after Claim 10 , characterized in that the multifunctional perforated disc (10) has at least one transverse fluid channel which extends from the first bulge (22) to the second bulge (25) for guiding the fluid accumulated in the annular groove to the first bulge. Drive unit (1) after Claim 10 or 11 , characterized in that the transverse fluid channel extends from the annular groove to the fluid guide region (24) of the first bulge (22), and the fluid guide region (24) is arranged in the radial direction (R) closer to the rotor carrier (2) than the annular groove, so that the transverse fluid channel extends obliquely radially from the annular groove in the direction of the rotor carrier (2) to the fluid guide region (24) of the first bulge (22). Drive unit (1) according to one of the preceding claims, characterized in that the second planetary gear set is arranged in the direction of an output flange. Vehicle and/or wind transmission with a drive unit (1) according to one of the preceding claims.

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