Clutch device and electric drive device having a clutch device

Abstract

The invention proposes a kind of clutch device, and the clutch device is characterized by high operating safety.For this, a kind of clutch device is proposed, and the clutch device has: clutch device, for the first shaft and the second shaft is torsionally coupled, wherein the first shaft and / or the second shaft defines the main axis;Operating device, for operating clutch device, wherein operating device has operating piston and piston cavity, wherein operating piston is movably arranged in piston cavity along the axial direction about the main axis for transmitting operating force to clutch device;Shell section, for accommodating clutch device and operating device, wherein shell section has wet chamber filled with oil and the shell wall axially limited to wet chamber, wherein operating device is arranged in wet chamber, wherein the clutch device has the drip section around the main axis, wherein the drip section extends into wet chamber in the extension to piston cavity, so that the oil in wet chamber flows out on the drip section away from operating piston.

Description

Technical Field

[0001] This invention relates to a clutch device. Furthermore, this invention relates to an electric drive device having a clutch device. Background Technology

[0002] Known clutch devices, especially those used in transmissions or hybrid transmissions, operate in an oil sump as a wet clutch. To disengage and engage the clutch, a secondary clutch cylinder is typically required, which has a housing with a pressure chamber in which an axially movable piston is guided. The housing of the secondary clutch cylinder is also mounted within the housing of the clutch device, thus also being in an oil environment.

[0003] The closest prior art document, DE 102017127110 A1, discloses a hybrid module for a vehicle drivetrain, including an electric motor, a disengagement clutch and a dual clutch having a first sub-clutch and a second sub-clutch, and a housing, wherein the housing has a wet chamber in which the electric motor and the dual clutch are arranged radially inside the electric motor, and the disengagement clutch is arranged axially adjacent to the housing wall that axially limits the wet chamber. Summary of the Invention

[0004] The object of this invention is to provide a clutch device having a control device for operating a clutch mechanism, the clutch device being characterized by high operational safety.

[0005] The objective is achieved by the clutch device according to the invention and the electric drive device according to the invention. Preferred or advantageous embodiments of the invention will be apparent in the following description and the accompanying drawings.

[0006] The subject of this invention is a clutch device, particularly configured for and / or suitable for use in electric drive devices. Specifically, the clutch device is used to interrupt the torque path of the drive device and / or redirect its direction. Preferably, the clutch device is configured for use in vehicles, particularly pure electric vehicles or hybrid vehicles.

[0007] The clutch device has a clutch assembly configured and / or adapted for torsionally coupling a first shaft to a second shaft. In principle, the clutch assembly can be configured as a form-fit clutch. However, preferably, the clutch assembly is configured as a friction-fit clutch, particularly a multi-plate clutch, wherein torque is transmitted from one shaft to the other when the multi-plate clutch is engaged. Here, the clutch assembly can have an inner friction plate carrier connected to one shaft and an outer friction plate carrier connected to the other shaft, wherein the two friction plate carriers engage with each other or can be positioned to engage with each other. In particular, one shaft is configured as an inner shaft and the other as an outer shaft. Preferably, the inner shaft is coaxially and / or concentrically arranged relative to the outer shaft, wherein the outer shaft is configured as a hollow shaft. The first and / or second shafts define, preferably jointly define, a main axis.

[0008] Furthermore, the clutch device has an operating mechanism configured and / or adapted for operating the clutch device. In particular, the operating mechanism is configured as a hydraulically or pneumatically operable cylinder. Particularly preferably, the operating mechanism is configured as a one-way acting cylinder, especially a secondary cylinder.

[0009] The actuating device has an actuating piston configured and / or adapted to transmit an actuating force to the clutch mechanism. Preferably, the actuating piston is effectively connected to the clutch mechanism for this purpose. Preferably, the actuating force is a pressure axially oriented about the main rotation axis. In particular, the actuating device is fluidly connected to the master cylinder, wherein when the master cylinder is actuated, a fluid column is moved toward the actuating device to apply an actuating force to the actuating piston.

[0010] The actuating device has a piston chamber, which is particularly configured and / or adapted to accommodate an actuating piston. Here, the actuating piston is movably, particularly movable, within the piston chamber in an axial direction about the main axis for transmitting the actuating force to the clutch mechanism. The actuating piston is movable within the piston chamber between an open position and a closed position, wherein in the closed position, the actuating force is transmitted to the friction plate mechanism and in the disengaged position, no actuating force is transmitted. Preferably, the actuating piston axially limits the piston chamber, wherein the volume of the piston chamber can be changed and / or altered when the piston is moved. The piston chamber is filled and / or can be filled by means of fluid, particularly hydraulic fluid, wherein when the actuating device or master cylinder is operated, the fluid pressure in the piston chamber increases and the actuating piston moves from the open position to the closed position.

[0011] The clutch device has a housing section configured and / or adapted to house a clutch mechanism and an operating device. The housing section has an oil-filled wet chamber and a housing wall axially defining the wet chamber, wherein at least the operating device and optionally the clutch mechanism are disposed within the wet chamber. In particular, the housing wall forms a separation wall from an adjacent housing chamber, which may optionally be configured as another wet chamber or a dry chamber. Specifically, a first and / or second shaft is guided through the housing wall and rotatably supported on the housing wall radially via bearing assemblies. Preferably, the operating device is disposed and / or fixed to the housing wall.

[0012] Within the scope of this invention, a clutch device is proposed to have a drip section around the main axis. Particularly during rotation of the first and / or second shafts, the drip section functions to prevent the operating device from direct contact with oil and / or to change the direction of oil flow. To this end, the drip section extends into the wet chamber in an extension to the piston chamber, allowing oil in the wet chamber to flow away from the operating piston via the drip section. Specifically, the drip section is positioned and / or configured in the wet chamber such that radially flowing or dripping oil is discharged on the radially outer side of the drip section, and radially flowing or centrifugally separated oil due to centrifugal force is discharged on the radially inner side of the drip section. Preferably, the drip section is configured as a hollow cylindrical and / or tubular protrusion. Particularly preferably, the drip section is configured in a rotationally symmetrical manner about the main axis. The drip section can, in principle, be provided adjacent to the operating device on the housing wall. Preferably, however, the drip section forms an integral part of the operating device.

[0013] A particular advantage of this invention lies in preventing or at least reducing contact between the operating piston and the oil and particles transported therein by means of a drip section, said particles being in the transmission or capable of detaching during operation. Therefore, damage to the piston or its seals due to particles entering the contact chamber can be prevented, thereby significantly reducing operating device failures. Furthermore, the defined oil flow formed by the drip section allows centrifugally separated or dripping oil to be returned to the oil pan as quickly as possible and reduces the risk of dry operation of components.

[0014] In one specific embodiment of the invention, the dripping section has an outflow groove on its outer circumference. Specifically, the outflow groove interrupts the radially extending main flow of oil from the outside in and guides it out along the outer circumference of the dripping section. The outflow groove defines an outflow path for the oil, causing it to accumulate and flow out along the outflow path on the outer circumference of the dripping section. Specifically, the outflow path extends clockwise and / or counterclockwise along the outer circumference from the radially highest point to the radially lowest point. Here, the radially highest point is defined by the 12 o'clock position with respect to an imaginary clock face coaxial with the main axis, and the radially lowest point is defined by the 6 o'clock position.

[0015] Particularly preferably, the outflow groove is configured as an annular groove around the main axis. The outflow path extends circumferentially around the main axis. In particular, the oil flowing onto the outer circumference is guided toward the outflow groove and then discharged along the outflow path on the outer circumference within the outflow groove.

[0016] Therefore, a drip section is proposed that enables particularly reliable outflow of oil dripping or flowing radially inward. A defined oil flow can be generated through the outflow channel, ensuring controlled outflow of the oil.

[0017] In another specific embodiment of the invention, the dripping section is provided with a surrounding outflow ridge on its inner circumference. Specifically, the outflow ridge is used to discharge oil that is not discharged through the outflow channel and / or centrifugally separated radially from the inside out due to centrifugal force along the inner circumference of the dripping section. The outflow ridge defines an additional outflow path for the oil, allowing it to accumulate and flow out along this additional outflow path on the inner circumference of the dripping section. Specifically, this additional outflow path extends clockwise and / or counterclockwise from the radially highest point to the radially lowest point on the inner circumference.

[0018] Particularly preferably, the outflow edge is configured as an annular step around the main axis. Another outflow path extends circumferentially around the main axis. Specifically, the annular step is formed by reducing the diameter of the inner circumference. Preferably, the outflow edge forms a surrounding misalignment that blocks oil towards the actuating piston. Specifically, oil flowing onto the inner circumference is blocked relative to the actuating piston by the outflow edge and discharged along the outflow path on the inner circumference.

[0019] Therefore, a drip section is proposed that provides additional protection against the oil, which is centrifugally separated, particularly radially outward. Furthermore, a defined oil flow can be generated by the outflow edge, ensuring controlled oil discharge.

[0020] In another embodiment of the invention, the dripping section has a profile on its inner circumference that descends from the outflow edge toward the axial end of the dripping section, allowing oil accumulated on the inner circumference to flow into the wet chamber. Specifically, the descending profile is used to guide oil accumulated at the radial lowest point of the inner circumference into the wet chamber, preventing oil backflow. In particular, the dripping section has at least one inclined surface around the main axis, wherein the inclined surface descends from the outflow edge toward the axial end, allowing oil to flow away from the operating piston into the wet chamber. It is particularly noteworthy that the dripping section has a radial through-hole at its radial deepest point, ensuring reliable oil flow.

[0021] One design embodiment proposes that the actuating piston, viewed axially about the main axis, is positioned radially inside the dripping section. Preferably, the actuating piston has an outer diameter that is less than or equal to the inner diameter of the inner circumference of the dripping section. For example, the actuating piston can be installed into or removed from the piston chamber via the dripping section.

[0022] Therefore, a drip section is proposed that uniformly shields the operating piston in the wet chamber, thereby blocking most of the oil through the drip section.

[0023] In another embodiment of the invention, the actuation device is configured as a concentric actuation cylinder. More specifically, the actuation device is configured as a concentric auxiliary cylinder (CSC). In this case, the actuation piston is configured as an annular piston around the main axis, and the piston chamber is configured as an annular chamber around the main axis. Preferably, the actuation piston and the piston chamber are arranged coaxially and / or concentrically about the main rotation axis. In principle, the annular chamber can be integrated into the housing wall. Preferably, however, the annular chamber is formed by a separate housing.

[0024] The actuating device and the dripping section are arranged coaxially about the main axis. Specifically, the annular chamber is bounded radially by an outer sealing surface and radially in the opposite direction by an inner sealing surface, wherein the dripping section is preferably located in an axial extension to the outer sealing surface. This ensures that the main radial flow of oil, extending from the outside to the inside, is kept away from both sealing surfaces. Particularly preferably, the actuating piston operates sealingly on both the inner and outer sealing surfaces via at least one or exactly one sealing device.

[0025] By incorporating a central drip section and control mechanism, it is possible to prevent oil or particles located therein from reaching the sealing surface and thus at least one sealing device, causing damage to it.

[0026] In another specific embodiment, the actuating device is proposed to have a piston housing with a piston chamber. In particular, the piston housing is configured as an annular housing. The annular housing preferably has inner and outer cylindrical sections for radially defining the piston chamber, and a radial section connecting the two cylindrical sections for axially defining the piston chamber. Specifically, the two cylindrical sections are concentrically arranged about the main axis and / or radially spaced apart and / or oriented in the same direction, wherein the outer cylindrical section forms an inner sealing surface by means of its inner cylindrical surface and the inner cylindrical section forms an outer sealing surface by means of its outer cylindrical surface. Preferably, the piston housing is coaxially and / or concentrically arranged with and / or fixed thereon to the housing wall. In particular, the housing wall has corresponding receiving portions in which the annular housing is received and / or fixed.

[0027] According to this embodiment, the dripping section is molded onto the annular shell on its end side along the axial direction. Specifically, the dripping section is molded onto the outer cylindrical section. In particular, the dripping section is configured as an axial extension of the cylindrical section. The dripping section is offset radially relative to the cylindrical section, creating an outflow edge through the resulting protrusion. Particularly preferably, the annular shell and the dripping section are integrally formed, particularly from a common material section.

[0028] Another subject of the invention relates to an electric drive system having a clutch device according to the invention. The electric drive system is particularly used for establishing and / or providing traction torque for a vehicle, especially a primary traction torque. Preferably, the drive system has a motor, especially an electric motor, for generating and / or providing traction torque. Alternatively, the drive system can have an internal combustion engine, especially an internal combustion motor, for providing another traction torque for the vehicle. Alternatively or additionally, the drive system has a transmission device for transmitting the traction torque. The transmission device can be configured, for example, as a single-stage or multi-stage transmission, a stepped automatic transmission (Stufenautomat), a dual-clutch transmission, or a continuously variable transmission, such as a CVT.

[0029] Preferably, one shaft constitutes the drive shaft of the electric motor, wherein this shaft is connected to the electric motor in a driving manner. In particular, another shaft can form the drive shaft of the internal combustion engine, wherein this shaft is connected to the internal combustion engine in a driving manner. Here, the clutch device preferably forms a disengaging clutch for coupling the electric motor and the internal combustion engine. In particular, the disengaging clutch has the function of disengaging the internal combustion engine, so that the electric motor can also be used to drive the vehicle independently of the internal combustion engine.

[0030] Alternatively, another shaft or optionally yet another shaft can form the transmission input shaft of the transmission unit, wherein the other shaft is connected to the transmission unit in a driving manner. In particular, the clutch device is configured as a triple clutch system, preferably a triple multi-plate clutch. The clutch device can be configured as a disengagement clutch (K0) or alternatively as a first clutch (K1) or a second clutch (K2) of a triple clutch system. In particular, the first and second clutches have the function of coupling or disengaging the internal combustion engine and / or electric motor from the transmission unit as needed. Attached Figure Description

[0031] Other features, advantages, and effects of the invention will become apparent from the following description of preferred embodiments of the invention. These are shown herein:

[0032] Figure 1 A schematic cross-sectional view of an electric drive system with a clutch device, as an embodiment of the present invention, is shown.

[0033] Figure 2 Show Figure 1 A detailed view of the dripping section of the clutch device. Detailed Implementation

[0034] Figure 1 A detailed view of an electric drive system 1 with a clutch device 2 is shown in a schematic cross-sectional view as an embodiment of the invention. The electric drive system 1 is used, for example, to provide traction torque for a vehicle. The vehicle, not shown, can be configured, for example, as a single-axle or multi-axle and / or a single-rail or multi-rail electric or hybrid vehicle.

[0035] The electric drive system 1 includes a motor 3, which is only schematically shown for generating traction torque, and has a first shaft 4a as the drive shaft of the motor 3. The motor 3 is configured as an electric motor and can be electrically connected to an energy device, such as a battery or accumulator, to obtain energy for generating traction torque. Furthermore, the electric drive system 1 includes a transmission device 5, which is only schematically shown for transmitting traction torque, and has a second shaft 4b as the transmission input shaft of the transmission device 5. The transmission device 5 can be configured, for example, as a planetary gear transmission.

[0036] The first and second shafts 4a and 4b are arranged coaxially and concentrically with each other and define the main axis H by means of their common axis of rotation. The first shaft 4a is configured as a solid shaft and forms an inner shaft in particular. The second shaft 4b is configured as a hollow shaft and forms an outer shaft in particular, through which the first shaft 4a is guided.

[0037] Clutch device 2 is disposed between motor 3 and transmission device 5 in an axial direction about the main axis H. Clutch device 2 has clutch assembly 6 for anti-torsional coupling of first and second shafts 4a, b. Clutch assembly 6 is configured as a multi-plate clutch and has an inner friction plate carrier 6a and an outer friction plate carrier 6b, which engage with each other or can be positioned to engage with each other. Here, the inner friction plate carrier 6a is connected to the first shaft 4a in particular as a single piece, and the outer friction plate carrier 6b is connected to the second shaft 4b in particular via interlocking teeth.

[0038] In order to operate the clutch assembly 6, the clutch device 2 has an operating device 7 configured as a concentric auxiliary cylinder (CSC). The operating device 7 is connected, for example, to a master cylinder (not shown) via a hydraulic line, wherein when the master cylinder is operated, a fluid column is moved toward the operating device 7 and an operating force F is transmitted to the clutch assembly 6 through the operating device 7.

[0039] In this regard, the actuation device 7 has an actuation piston 8 and a piston housing 9 for accommodating the actuation piston 8. The actuation piston 8 is configured as an annular piston and the piston housing 9 is configured as an annular housing, and the actuation piston and the piston housing are arranged coaxially and concentrically about the main axis H. The actuation piston 8 is disposed in a piston chamber 10 within the piston housing 9, and the piston chamber is configured as an annular chamber around the main axis H.

[0040] The actuating piston 8 is movably housed in the piston cavity 10 in an axial direction about the main axis H, wherein the actuating piston 8 limits the piston cavity 10 in the axial direction AR. The piston housing 9 has outer and inner cylindrical sections 11a, b, which are concentrically arranged and limit the piston cavity 10 in a radial direction. The two cylindrical sections 11a, b are connected to each other via a radial section 11c, which limits the piston cavity 10 in the opposite axial direction GR. The outer cylindrical section 11a defines an outer sealing surface 12a by means of its inner cylindrical surface and the inner cylindrical section 11b defines an inner sealing surface 12b by means of its outer cylindrical surface. The actuating device 7 has outer and inner sealing devices 13a, b, such as piston sealing rings, wherein the actuating piston 8 operates in a sealed manner at the outer sealing surface 12a via the outer sealing device 13a and in a sealed manner at the inner sealing surface 12b via the inner sealing device 13b.

[0041] To transmit the operating force F to the clutch assembly 6, the operating device 7 has a transmission device 14. The transmission device 14 includes a release bearing 15 and a transmission canister. 16. Via the transfer can, the release bearing 15 is supported on the clutch assembly 6 in the axial direction AR, particularly on the outer friction plate support 6b. The operating piston 8 is also supported on the release bearing 15 in the axial direction AR, such that the operating piston 7 rotates and disengages from the clutch assembly 6 in the circumferential direction around the main axis H.

[0042] The clutch device 2 includes a housing section 17 for accommodating the clutch assembly 6 and the operating device 7. In the illustrated embodiment, the motor housing is formed or co-formed with the housing section 17, wherein the motor 3 is housed within the housing section 17. The housing section 17 has an oil-filled wet chamber 18, which is defined by a housing wall 19 in the axial counter-direction GR. The housing wall 19 extends radially between the motor 3 and the transmission assembly 5 and spatially separates them from each other in the axial direction. The transmission assembly 5 is housed in another housing section, which selectively has another wet chamber or a dry chamber.

[0043] The housing wall 19 has a central opening 21 through which the first and second shafts 4a and b are guided through the opening 21 and supported on the housing wall 19 in the radial direction by a bearing assembly 20. In addition, the housing wall 19 has an annular receiving portion 22 in which a piston housing 9 configured as an annular housing is received in a shape-fitting manner in the circumferential and radial directions.

[0044] Since the operating device 7 is located in an oil environment, oil, for example, through the volumetric flow of cooling oil from the clutch 6 and / or the motor 3, can reach the operating device 7 from the outside. Here, particles (solids) initially located within the housing section 17 or detached during operation can be carried by the oil and damage the sealing devices 13a, b of the operating device 7, which can cause the operating device 7 to fail. Such damage caused by external particles must be avoided, which means preventing particles from reaching the sealing surfaces 12a, b or the sealing devices 13a, b.

[0045] To address this, a two-stage drip protection system in the form of a drip section 23 is proposed, which prevents oil droplets (where particles may be present) from reaching the operating device 7 from a higher component via dripping or flowing. The drip section 23 is a cylindrical section 11a connected to the outside of the piston housing 9 in the extension to the piston chamber 10 and configured as a cylindrical protrusion around the main axis H. The drip section 23 has a main flow path, schematically indicated by the droplets, that changes the direction of the oil flowing radially from the outer to the inner direction and guides it away from the operating piston 8 via the outer circumference 24. Furthermore, the drip section 23 is used to intercept oil that has been centrifugally separated from the radially inner direction to the radially outer direction by centrifugal force, for example by the clutch device 6, and guides it away from the operating piston 8 via the inner circumference 25.

[0046] Figure 2 Show Figure 1 A detailed view of the dripping section 23 is shown. The dripping section 23 has an outflow groove 26 on its outer circumference 24, which is equivalent to a groove and is intended to interrupt the main flow of oil and guide it along the outer circumference 24. The outflow groove 26 is configured as an annular groove around the main axis H, which defines the outflow path for the oil around the main axis H. Here, oil or the main flow dripping from the top or left side accumulates in the outflow groove 26 so that it can flow out along the outflow path through the outer circumference 24 until it can drip at the radial depth of the outflow groove 26.

[0047] Additionally, the drip section 23 has an outflow edge 27 on its inner circumference 25, which is equivalent to a guide ring and should guide oil out along the inner circumference 26. The outflow edge 27 is configured as an annular step around the main axis H, which defines another outflow path for oil around the main axis H. Here, oil that accumulates on the left side of the outflow groove 26 or is centrifugally separated onto the inner circumference 25 by centrifugal force accumulates on the outflow edge 27, thus enabling it to flow out along another outflow path through the inner circumference 25 until it can also flow out from the piston housing 9 at its deepest point.

[0048] In this regard, the drip section 23 can have a profile that descends from the outflow edge 27 in the axial direction AR, which ensures that the oil flows out at the deepest point. The descending profile is formed here by a surrounding inclined surface 28, which is introduced into the inner circumference 25 of the drip section 23 and descends in the axial direction AR toward the axial end side of the drip section 23.

[0049] The outflow edge 27 is formed radially by radial misalignment or steps, such that the inner circumference 25 and the outer sealing surface 12a are radially offset from each other. The outer sealing surface 12a is radially offset inward, where oil, especially at the deepest point, is blocked by the outflow edge 27 in the opposite axial direction GR. The dripping section 23 thus prevents oil from reaching the sealing surfaces 12a, b or the sealing devices 13a, b, and causing damage to them.

[0050] List of reference numerals in the attached diagram:

[0051] 1 Electric drive unit

[0052] 2. Clutch equipment

[0053] 3 motors

[0054] 4a, b axes

[0055] 5. Transmission Unit

[0056] 6. Clutch device

[0057] 7. Control device

[0058] 8. Manipulate the piston

[0059] 9 Piston housing

[0060] 10 Piston Chamber

[0061] 11a, b Columnar sections

[0062] 11c Radial section

[0063] 12a, b Sealing surfaces

[0064] 13a, b Sealing devices

[0065] 14. Transfer device

[0066] 15 Separable bearing

[0067] 16 Transfer Containers

[0068] 17. Shell Section

[0069] 18 wet room

[0070] 19. Shell wall

[0071] 20 Bearing Assembly

[0072] 21 Opening

[0073] 22. Reception area

[0074] 23. Dripping section

[0075] 24 Outer Ring Road

[0076] 25 Inner Ring Road

[0077] 26 Outflow channel

[0078] 27. Flowing out from the edge

[0079] 28 Inclined surface

[0080] H Main axis

[0081] F Control Force

[0082] AR Axial Direction

[0083] AR axis opposite direction

Claims

1. A clutch device (2), comprising: A clutch device (6) for anti-torsional coupling of a first shaft (4a) and a second shaft (4b), wherein the first and / or second shafts (4a, b) define a main axis (H); An operating device (7) for operating the clutch device (6), wherein the operating device (7) has an operating piston (8) and a piston chamber (10), wherein the operating piston (8) is movably disposed in the piston chamber (10) in an axial direction about the main axis (H) for transmitting an operating force (F) to the clutch device (6). A housing section (17) for accommodating the clutch assembly (6) and the operating device (7), wherein the housing section (17) has an oil-filled wet chamber (18) and a housing wall (19) axially defining the wet chamber (18), wherein the operating device (7) is disposed within the wet chamber (18). Its features are, A drip section (23) is provided around the main axis (H), wherein the drip section (23) extends into the wet chamber (18) in an extension to the piston chamber (10), such that oil in the wet chamber (18) flows out of the drip section (23) away from the operating piston (8).

2. The clutch device (2) according to claim 1, Its features are, The dripping section (23) has an outflow groove (26) on its outer circumference (24), wherein the outflow groove (26) defines an outflow path for oil, so that oil can flow out in a concentrated manner along the outflow path on the outer circumference (24) of the dripping section (23) via the outflow groove (26).

3. The clutch device (2) according to claim 2, Its features are, The outflow groove (26) is configured as an annular groove around the main axis (H), such that the outflow path extends along the circumferential direction around the main axis (H) on the outer circumference (24).

4. The clutch device (2) according to any one of the preceding claims, Its features are, The drip section (23) has an outflow edge (27) around its inner circumference (25), wherein the outflow edge (27) defines another outflow path for oil in the circumferential direction, so that oil can flow out in a concentrated manner along the other outflow path via the outflow edge (27) on the inner circumference (25) of the drip section (23).

5. The clutch device (2) according to claim 4, Its features are, The outflow edge (27) is configured as an annular step around the main axis (H), such that the other outflow path extends along the circumferential direction around the main axis (H) on the inner circumference (25).

6. The clutch device (2) according to claim 4, Its features are, The drip section (23) has a profile on its inner circumference (25) that descends from the outflow edge (27) toward the axial end side, so that the oil accumulated on the inner circumference (25) can flow out into the wet chamber (18).

7. The clutch device (2) according to any one of claims 1 to 3, Its features are, The manipulating piston (8) is located radially inside the dripping section (23) when viewed in the axial direction (AR) about the main axis (H).

8. The clutch device (2) according to any one of claims 1 to 3, Its features are, The actuating device (7) is configured as a concentric actuating cylinder, wherein the actuating piston (8) is configured as an annular piston around the main axis (H) and the piston chamber (10) is configured as an annular chamber around the main axis (H), wherein the actuating device (7) and the dripping section (23) are coaxially arranged about the main axis (H).

9. The clutch device (2) according to any one of claims 1 to 3, Its features are, The actuating device (7) has a piston housing (9) with a piston chamber (10), wherein the dripping section (23) is molded onto the piston housing (9) at the end side in the axial direction (AR).

10. An electric drive system (1) having a clutch device (2) according to any one of the preceding claims.

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