Electric drive units and drives

Abstract

The present invention relates to an electric drive unit, in particular a hybrid module for a motor vehicle connected to an internal combustion engine, and a motor vehicle drive device comprising an internal combustion engine and an electric drive unit according to the present invention. An electric drive unit (1) comprises an electric motor (20) and at least one clutch device (30) in a housing (10), wherein the electric drive unit (1) comprises a clutch cover (40) connected to a rotor (21) of the electric motor (20) in a rotationally fixed manner and at least partially realizes a torque transmission path from the electric motor (30) to at least one output shaft, wherein at least one of the clutch devices (30) and the electric motor (20) are arranged on opposite sides of the clutch cover (40), and the clutch cover (40) and a sealing element (52) of the electric drive unit (1) together realize a gap seal (50). The electric drive unit according to the present invention has the advantages of small required installation space and low assembly cost, while also combining the advantages of reliable operation and long service life.

Description

Technical Field

[0001] The invention relates to an electric drive unit, in particular a hybrid module for a motor vehicle connected to an internal combustion engine, and a drive device for a motor vehicle comprising an internal combustion engine and an electric drive unit according to the invention. Background Art

[0002] Electric drive units for motor vehicles or motor vehicle drive trains, in particular hybrid modules, are known in the prior art and include an electric machine and a clutch device in a torque transmission path between an internal combustion engine and a transmission unit.

[0003] When a motor vehicle equipped with a hybrid module is running, the electric motor can realize electric driving, driving in extended range mode and kinetic energy recovery. Here, it is known that a separate clutch and a torque transmission device need to be designed, wherein the torque transmission device can be a clutch, a dual clutch device, a torque converter or a continuously variable transmission.

[0004] An actuation system of a disconnect clutch ensures the connection or disconnection of the internal combustion engine. In order to transfer the torque of the electric motor or the internal combustion engine to the output element, such as the transmission output shaft, the torque is always controlled by a torque transmission device. In order to achieve an efficient design in terms of installation space, a clutch or a dual clutch device is preferably used as the torque transmission device in most cases.

[0005] In order to be able to arrange all required components, elements and assemblies between the internal combustion engine and the transmission output without further separation of the internal combustion engine and the transmission output, and thus to avoid exceeding the normal installation space requirements of the vehicle, all components of the electric drive unit must be very compact in design and arrangement. It is very helpful here to arrange as many components of the electric drive unit as possible in a common housing without any space-consuming partitions being provided between the components.

[0006] As long as a torque is transmitted via a clutch device, in particular via a dry clutch, and the drive side and the output side rotate at different speeds, slip can occur on the friction surfaces.

[0007] When the clutch slips, heat is generated. In order to prevent the friction surfaces from overheating and the resulting so-called thermal decay, i.e. excessive wear of the friction lining and deformation of the components due to high temperatures, the friction energy input into the clutch is temporarily stored in the clutch lining by heating the material. The clutch then dissipates the heat to the surrounding components and the air around these components. The friction surfaces of the clutch rubbing against each other cause wear. During the service life of the clutch, the material loss associated with the wear of the clutch lining causes material, which is usually called clutch dust or simply dirt or contamination particles, to be discharged from the clutch. This means that in electric drives, the motor must be protected from heat and dirt generated by the clutch.

[0008] Especially for a dry clutch that is very close to the motor, it must be ensured that these polluting particles do not penetrate into the motor, or the amount of polluting particles that penetrate into the motor must be within an allowable range.

[0009] However, it is necessary to avoid pollutant particles remaining in the clutch, otherwise, it will affect the function of the clutch.

[0010] In this regard, the unpublished German patent application with the official document number 102017125845.0 describes a hybrid power module for a motor vehicle powertrain system, comprising an electric motor having a rotor mounted on a rotor support and a stator, a disconnect clutch and a dual clutch. A support plate at least fixes the disconnect clutch to the rotor support of the electric motor. The support plate is designed so that it no longer has an open opening after the remaining hybrid power module is assembled, which can prevent air, heat or dirt from being transferred from the clutch to the electric motor.

[0011] In this regard, the unpublished German patent application with the official document number 102017130349.9 describes an electric drive unit comprising an electric motor and at least one first clutch device. When fixed to the rotor or rotor support of the electric motor, the electric drive unit includes a dirt baffle, so that the dirt particles of the clutch device are ejected axially to the side of the motor. A dirt isolation device connected to the housing may also be additionally provided. Here, the dirt baffle may have an axial component in its extension direction, so that it extends both radially and axially, thereby extending obliquely. By means of a dirt baffle that rotates together and / or by means of a dirt isolation device that does not rotate together, the dirt discharged or ejected on the end face of the motor can be kept away from the motor or other sensitive components and guided to the outside of the motor at the desired position in the axial direction. Summary of the invention

[0012] Based on this, the object of the present invention is to provide an electric drive unit and a drive device equipped with the electric drive unit, which have the advantages of low installation space requirement, low assembly cost, reliable operation and long service life.

[0013] This object is achieved by an electric drive unit according to claim 1. Preferred embodiments of the electric drive unit according to claim 1 are described in dependent claims 2 to 7.

[0014] This object is achieved, among other things, by an electric drive unit according to claim 8. Preferred embodiments of the electric drive unit according to claim 8 are described in the dependent claims 9 to 13.

[0015] In addition, a drive device for a motor vehicle having an electric drive unit is provided according to claim 14 .

[0016] The features of the claims may be combined in any technically sensible manner, wherein reference is also made to the following description and to the features in the drawings, which contain complementary embodiments of the invention.

[0017] Within the context of the present invention, the terms “axial”, “radial”, “tangential” and “circumferential” or “direction of rotation” always refer to the axis of rotation of the electric drive unit.

[0018] The invention relates to an electric drive unit, in particular a hybrid module for a motor vehicle connected to an internal combustion engine. The electric drive unit contains in a housing an electric motor for generating a drive torque and at least one clutch device for transmitting the provided torque to at least one output shaft, in particular a transmission input shaft, wherein the electric drive unit contains a clutch cover which is connected to the rotor of the electric motor in a rotationally fixed manner and at least partially realizes a torque transmission path from the electric motor to the at least one transmission input shaft.

[0019] At least one clutch device and the electric machine are respectively arranged on opposite sides of the clutch cover, wherein the clutch cover and a sealing element of the electric drive unit together realize a gap seal.

[0020] The gap seal can have a gap that runs in particular at an angle, so that the gap seal is designed as a labyrinth seal. Compared to an essentially straight gap, this can provide a higher flow resistance.

[0021] Despite the use of a gap contour, in particular in the form of multiple corners, a very easy assembly of the electric drive unit is possible. The clutch device is fixed to the electric motor by means of a clutch cover. In this way, the radially outer part of the clutch cover is axially located at the position provided for the gap sealing. Subsequently, a housing component belonging to the clutch device and which can already be a component of the transmission unit is connected to the housing component of the electric motor, wherein the clutch cover engages in a recess in one of the two housing components.

[0022] According to another aspect of the present invention, the clutch cover has an extension section having at least an axial component, and at least one clutch device and the electric motor are arranged on radially opposite sides of the clutch cover.

[0023] The axially extending clutch cover enables the generated particles to be discharged in the axial direction, thereby avoiding the motor.

[0024] According to a further preferred embodiment, the housing comprises at least two housing components which are mechanically fixed to one another, wherein the gap formed by the gap seal is located substantially in the separating layer between the two housing components.

[0025] The separation layer can be a plane that sets one side of the gap. In this way, it is possible to ensure that the two housing components or the gap seal can be easily assembled.

[0026] In addition, it is preferred that the subject matter of the invention be provided that the sealing element is arranged in the separating layer between the two housing components.

[0027] The sealing element can be fixed in a convenient manner by mechanically fastening the two housing components to each other. In a simple embodiment, the sealing element is a so-called sealing plate which extends radially inward from the two housing components and forms one side of a section of the labyrinth seal.

[0028] It is likewise possible for the sealing element to be designed as an integral component of one of the two housing components.

[0029] In a simple embodiment of the electric drive unit according to the invention, part of the gap sealing is realized on one side by a sealing strip fastened to the housing.

[0030] The sealing strip can be designed as an annular ring or a hollow cylinder, the radial outer side of which is mechanically fixed to the inner side of a housing component. The sealing strip can also be a complete section of a housing component. The sealing strip can also be designed to be formed by the corresponding housing component or by its material.

[0031] According to another embodiment, a terminal part of the clutch cover facing away from the electric machine in the axial direction protrudes axially beyond the sealing strip.

[0032] Furthermore, a receiving chamber for receiving particles can be provided in or on at least one housing component of the electric drive unit. The receiving chamber and the inner chamber of the electric drive unit formed by the housing are fluidically connected by means of a channel in order to guide particles released by the electric drive unit to the receiving chamber.

[0033] Between the sealing strip and the sealing element there can be a gap which preferably extends radially at the circumference, and from which at least one channel in turn extends radially to the receiving chamber for receiving the particles.

[0034] Depending on the design, the receiving chamber can be arranged on the circumference of the corresponding housing component of the housing or at almost any position on the circumference, since the centrifugal force transports the rotating particles in the housing radially outwards. It is particularly appropriate to arrange the receiving chamber in the lower half or lower third of the housing, since gravity can then help transport the particles into the receiving chamber.

[0035] In a motor vehicle such as a car or truck, the receiving chamber can be arranged, in particular according to the design, at the location of the electric drive unit with the greatest depth or in the area of ​​the electric drive unit with the greatest depth, provided that the positioning is in accordance with the regulations. Particularly preferably, the bottom of the receiving chamber can be designed to be greater than the depth of the channel connected to the receiving chamber. In this way, it can be ensured that particles that fall into the receiving chamber remain in the receiving chamber at least by gravity.

[0036] Preferably, each accommodating chamber can be designed to correspond to only one channel, and thus only one opening connected to the inner cavity of the shell, so that the accommodating chamber preferably forms a fluid-technically stable area, so that pollutant particles will not return to the inner cavity of the shell due to the airflow existing in the electric drive unit, vibration or inertial force.

[0037] Depending on the design, the receiving chamber can be integrated into existing contours in the housing, for example into a rib-like structure and / or a fastening contour.

[0038] The electric drive unit according to the invention preferably comprises a clutch cover which is connected to the rotor of the electric motor in a substantially rotationally fixed manner and at least partially realizes a torque transmission path from the electric motor to at least one output shaft, in particular a gearbox input shaft, wherein at least one clutch device and the electric motor are arranged on opposite sides of the clutch cover, respectively. The channel is axially positioned between the end portion of the clutch cover which is axially facing away from the electric motor and the electric motor, or the end portion of the clutch cover which is axially facing away from the electric motor is axially positioned between the channel and the electric motor.

[0039] Likewise, the channel can be arranged at the same axial position as the end portion of the clutch cover facing away from the motor according to the design. In addition, in addition to the end portion of the clutch cover facing away from the motor, the channel can be designed to have another extension in the axial direction, so that the end portion is basically arranged in the axial direction between the two sides of the channel that form the boundary of the channel in the axial direction. Here, the end portion can at least partially extend into the channel in the radial direction.

[0040] According to another embodiment, the channel has a tangentially extending member.

[0041] The shape of the channel can be adjusted according to the rotation direction of the clutch device. This can accordingly promote the particles in the inner cavity of the housing to enter the receiving cavity through the channel under the action of the rotation action. The position of the channel can also be adjusted according to the rotation direction of the clutch device. The shape of the channel is adjusted according to the rotation direction of the clutch device, so that the area where the particles enter the receiving cavity from the channel is located behind the area where the particles enter the channel in the rotation direction.

[0042] In this way, an inlet opening in the interior of the housing and an outlet opening on the receiving chamber are arranged offset relative to each other in the rotational direction, wherein the offset between the inlet opening and the outlet opening results in an extension of the channel in the tangential direction.

[0043] In this way, the channel connecting the inner cavity of the electric drive unit formed by the housing and the receiving cavity is oriented according to the splashing direction of the particles. In this way, even with a small cross section of the channel, the particles can still easily enter the receiving cavity, wherein the smaller the cross section of the channel, the smaller the risk of particles being ejected from the receiving cavity again due to an unexpected airflow.

[0044] According to another aspect of the present invention, at least one accommodating cavity is arranged below a lower half of the inner side of the axial section of the housing.

[0045] The part with the greatest depth should be determined here according to the proper alignment of the electric drive unit or hybrid module in the motor vehicle.

[0046] In particular, the receiving chamber can be arranged, depending on the design, below the inner lower third of the axial section of the housing.

[0047] According to a supplementary embodiment, the receiving chamber is openly connected to an axial end face of the housing component and a separating layer is provided on the housing component, which is located between the housing components.

[0048] From a manufacturing point of view, this makes it easy to form the receiving chamber from the end face of the corresponding housing component. This opening of the receiving chamber can be closed in the assembled state by the mechanical connection of the two housing components and / or a sealing element located between them.

[0049] After assembly, the accommodating cavity has only one opening connected to the interior of the shell, which ensures that particulate matter inside the electric drive unit can be gathered inside the accommodating cavity, and there is no outward opening to prevent dirt or moisture in the surrounding environment from invading the electric drive unit.

[0050] In a simple and stable embodiment of the electric drive unit according to the invention, the channel is a component of a recess, in particular a bore, which is made radially in the housing component and passes through the receiving space.

[0051] This recess is used to form a passage between the receiving chamber and the inner cavity of the housing. It can be closed from the outside of the housing to prevent dirt or moisture from the surrounding environment from penetrating into the housing. In addition, this embodiment also makes it possible to empty the receiving chamber through the recess when necessary. The cross section of the recess connecting the outer side of the housing to the receiving chamber and the cross section of the passage connecting the receiving chamber to the inner cavity of the housing can have different sizes. In particular, the cross section of the recess between the outer side of the housing and the receiving chamber can be larger than the cross section of the passage.

[0052] Not all side walls that delimit the receiving chamber must be formed by the housing components surrounding the motor and the clutch device. The side wall that separates the receiving chamber from the housing interior or the housing exterior can also be formed by a separate component that is connected to at least one of the housing components.

[0053] A closure element that can be removed again can be arranged in the recess. In this way, the cross-sectional dimensions of the closure element between the housing outside and the accommodating chamber in the recess can also be correspondingly larger than the cross-sectional dimensions of the passage.

[0054] The invention also relates to an electric drive unit, in particular a hybrid module for a motor vehicle connected to an internal combustion engine. The electric drive unit contains an electric motor in a housing for generating a drive torque and at least one clutch device for transmitting the provided torque to at least one output shaft, in particular a transmission input shaft, wherein a receiving chamber for receiving particulate matter is provided in or on at least one housing component of the electric drive unit. The receiving chamber and an inner chamber of the electric drive unit formed by the housing are connected in a fluidic manner by means of a channel in order to guide the particulate matter released by the electric drive unit to the receiving chamber.

[0055] The receiving chamber can be arranged on the circumference of the corresponding housing component of the housing or at almost any position on the circumference, depending on the design, since the centrifugal force transports the rotating particles in the housing radially outwards. It is particularly expedient to arrange the receiving chamber in the lower half or lower third of the housing, since gravity can then help transport the particles into the receiving chamber.

[0056] In a motor vehicle such as a car or truck, the receiving chamber can be arranged, in particular according to the design, at the location of the electric drive unit with the greatest depth or in the area of ​​the electric drive unit with the greatest depth, provided that the positioning is in accordance with the regulations. Particularly preferably, the bottom of the receiving chamber can be designed to be greater than the depth of the channel connected to the receiving chamber. In this way, it can be ensured that particles that fall into the receiving chamber remain in the receiving chamber at least by gravity.

[0057] Preferably, each accommodating chamber can be designed to correspond to only one channel, and thus only one opening connected to the inner cavity of the shell, so that the accommodating chamber preferably forms a fluid-technically stable area, so that pollutant particles will not return to the inner cavity of the shell due to the airflow existing in the electric drive unit, vibration or inertial force.

[0058] Depending on the design, the receiving chamber can be integrated into existing contours in the housing, for example into a rib-like structure and / or a fastening contour.

[0059] The electric drive unit according to the invention preferably comprises a clutch cover which is connected to the rotor of the electric motor in a substantially rotationally fixed manner and at least partially realizes a torque transmission path from the electric motor to at least one output shaft, in particular a gearbox input shaft, wherein at least one clutch device and the electric motor are arranged on opposite sides of the clutch cover, respectively. The channel is axially positioned between the end portion of the clutch cover which is axially facing away from the electric motor and the electric motor, or the end portion of the clutch cover which is axially facing away from the electric motor is axially positioned between the channel and the electric motor.

[0060] Likewise, the channel can be arranged at the same axial position as the end portion of the clutch cover facing away from the motor according to the design. In addition, in addition to the end portion of the clutch cover facing away from the motor, the channel can be designed to have another extension in the axial direction, so that the end portion is basically arranged in the axial direction between the two sides of the channel that form the boundary of the channel in the axial direction. Here, the end portion can at least partially extend into the channel in the radial direction.

[0061] In addition, here too, depending on the design, the clutch cover and a sealing element of the electric drive unit can together realize a gap seal.

[0062] Despite the use of a gap contour, in particular in the form of multiple corners, a very easy assembly of the electric drive unit is possible. The clutch device is fixed to the electric motor by means of a clutch cover. In this way, the radially outer part of the clutch cover is axially located at the position provided for the gap sealing. Subsequently, a housing component belonging to the clutch device and which can already be a component of the transmission unit is connected to the housing component of the electric motor, wherein the clutch cover engages in a recess of the housing component belonging to the clutch device.

[0063] According to another aspect of the present invention, the clutch cover has an extension section having at least an axial component, and at least one clutch device and the electric motor are arranged on radially opposite sides of the clutch cover.

[0064] The axially extending clutch cover enables the generated particles to be discharged in the axial direction, thereby avoiding the motor.

[0065] According to a further preferred embodiment, the housing comprises at least two housing components which are mechanically fixed to one another, wherein the gap formed by the gap seal is located substantially in the separating layer between the two housing components.

[0066] The separation layer can be a plane that sets one side of the gap. In this way, it is possible to ensure that the two housing components or the gap seal can be easily assembled.

[0067] In addition, it is preferred that the subject matter of the invention be provided that the sealing element is arranged in the separating layer between the two housing components.

[0068] The sealing element can be fixed in a convenient manner by mechanically fastening the two housing components to each other. In a simple embodiment, the sealing element is a so-called sealing plate which extends radially inward from the two housing components and forms one side of a section of the labyrinth seal.

[0069] In a simple embodiment of the electric drive unit according to the invention, part of the gap sealing is realized on one side by a sealing strip fastened to the housing.

[0070] The sealing strip can be designed as an annular ring or a hollow cylinder, the radial outer side of which is mechanically fixed to the inner side of a housing component. The sealing strip can also be a complete section of a housing component. The sealing strip can also be designed to be formed by the corresponding housing component or by its material.

[0071] According to another embodiment, a terminal part of the clutch cover facing away from the electric machine in the axial direction protrudes axially beyond the sealing strip.

[0072] Between the sealing strip and the sealing element there can be a gap which preferably extends radially at the circumference, and from which at least one channel in turn extends radially to the receiving chamber for receiving the particles.

[0073] According to another embodiment, the channel has a tangentially extending member.

[0074] The shape of the channel can be adjusted according to the rotation direction of the clutch device. This can accordingly promote the particles in the inner cavity of the housing to enter the receiving cavity through the channel under the action of the rotation action. The position of the channel can also be adjusted according to the rotation direction of the clutch device. The shape of the channel is adjusted according to the rotation direction of the clutch device, so that the area where the particles enter the receiving cavity from the channel is located behind the area where the particles enter the channel in the rotation direction.

[0075] In this way, an inlet opening in the interior of the housing and an outlet opening on the receiving chamber are arranged offset relative to each other in the rotational direction, wherein the offset between the inlet opening and the outlet opening results in an extension of the channel in the tangential direction.

[0076] The passage connecting the interior of the electric drive unit formed by the housing and the receiving chamber is thus adjusted according to the splash direction of the particles. In this way, particles can easily enter the receiving chamber even with a small passage, wherein the smaller the passage, the lower the risk that particles will be ejected from the receiving chamber again due to unintended airflows.

[0077] According to another aspect of the present invention, at least one accommodating cavity is arranged below a lower half of the inner side of the axial section of the housing.

[0078] The part with the greatest depth should be determined here according to the proper alignment of the electric drive unit or hybrid module in the motor vehicle.

[0079] In particular, the receiving chamber can be arranged, depending on the design, below the inner lower third of the axial section of the housing.

[0080] According to a supplementary embodiment, the receiving chamber is openly connected to an axial end face of the housing component and a separating layer is provided on the housing component, which is located between the housing components.

[0081] From a manufacturing point of view, this makes it easy to form the receiving chamber from the end face of the corresponding housing component. This opening of the receiving chamber can be closed in the assembled state by the mechanical connection of the two housing components and / or a sealing element located between them.

[0082] After assembly, the accommodating cavity has only one opening connected to the interior of the shell, which ensures that particulate matter inside the electric drive unit can be gathered inside the accommodating cavity, and there is no outward opening to prevent dirt or moisture in the surrounding environment from invading the electric drive unit.

[0083] In a simple and stable embodiment of the electric drive unit according to the invention, the channel is a component of a recess, in particular a bore, which is made radially in the housing component and passes through the receiving space.

[0084] This notch is used to form a passage between the receiving chamber and the inner cavity of the housing. It can be closed from the outside of the housing to prevent dirt or moisture from the surrounding environment from penetrating into the housing. In addition, this embodiment also enables the receiving chamber to be emptied through the notch when necessary.

[0085] The cross section of the notch connecting the housing outer side and the accommodating chamber and the cross section of the passage connecting the accommodating chamber and the housing inner chamber can have different sizes. In particular, the cross section of the notch between the housing outer side and the accommodating chamber can be larger than the cross section of the passage.

[0086] Not all side walls that delimit the receiving chamber must be formed by the housing components surrounding the motor and the clutch device. The side wall that separates the receiving chamber from the housing interior or the housing exterior can also be formed by a separate component that is connected to at least one of the housing components.

[0087] A closure element that can be removed again can be arranged in the recess. In this way, the cross-sectional dimensions of the closure element between the housing outside and the accommodating chamber in the recess can also be correspondingly larger than the cross-sectional dimensions of the passage.

[0088] In addition, the present invention also provides a drive device for a motor vehicle, comprising an electric drive unit according to the present invention, in particular a hybrid power module, and at least one other machine element located on the output side of the electric drive unit, in particular a gearbox, wherein the electric drive unit or the hybrid power module and the other machine element are mechanically connected together via at least one clutch device of the electric drive unit or the hybrid power module.

[0089] The further machine element can here be designed as a transmission input shaft or as a unit consisting of a plurality of transmission input shafts.

[0090] Furthermore, the drive device can include an internal combustion engine, wherein the electric drive unit or the hybrid module with the internal combustion engine is mechanically connected to at least one clutch device of the electric drive unit or the hybrid module.

[0091] The housing can be composed of a plurality of housing components. In particular, the motor can be arranged in one housing component and the clutch device can be arranged in another housing component according to the design. A gearbox unit can also be arranged in the housing component in which the clutch device is arranged. As an alternative, the gearbox unit and the clutch device can also be arranged in separate housing components according to the design.

[0092] The clutch device can be designed as a separate clutch, a single clutch or one of the clutches of a double clutch device. The clutch device can be designed in particular as a dry clutch, since dry clutches can generally be operated with improved energy efficiency compared to wet clutches.

[0093] The clutch cover also has the function of transmitting the torque of the electric machine to the clutch device. For the design of the electric drive unit with two clutch devices, more precisely a separating clutch and a dual clutch, it is possible in particular to design the separating clutch to be connected to the rotor of the electric machine in a torque-proof manner, the electric machine to be connected to the clutch cover in a torque-proof manner, and the dual clutch device to be connected to the clutch cover in a torque-proof manner.

[0094] The clutch cover can be designed as a largely closed drawn steel sheet part to ensure that particles and heated air cannot pass directly from the clutch device to the electric machine through the clutch cover.

[0095] The clutch cover has a substantially rotationally symmetrical side wall with at least one axially extending member. The clutch cover may not have a completely rotationally symmetrical shape in some locations. For example, recessed locations and / or grooves for fixing adjacent components may be provided.

[0096] The clutch cover may have an opening in the center.

[0097] That is, when the hot air or the particulate matter flows through the clutch cover of the separation clutch on the radial inside or the radial outside, the hot air or the particulate matter can only reach the motor from the clutch.

[0098] Particles that are loose in the clutch device (e.g. due to wear of the friction surfaces that form the friction contact) will move radially outward on the side of the clutch cover facing the clutch device due to their own weight and the centrifugal force of the rotating clutch device. Depending on the specific shape of the clutch cover, the particles located therein will also be transported axially until they reach the radially outer end portion of the clutch cover facing the transmission unit. There, the particles will be thrown out of the clutch cover and hit the housing. In this way, the particles will not only move with the shape of the clutch cover and the centrifugal force, but also with the airflow in the housing.

[0099] The clutch cover can also be a clutch cover assembly consisting of multiple parts. In this way, the clutch cover parts responsible for transmitting torque can be different from the parts that form the gap seal. In addition to the functions of support, torque transmission and sealing, the clutch cover assembly can also include components that realize other functions of the clutch device.

[0100] In an embodiment of the electric drive unit with a sealing strip and / or a sealing plate according to the present invention, the sealing strip and / or the sealing plate can be made of plastic material according to the design, in particular designed as a corresponding plastic ring. Other non-conductive and / or non-magnetic materials can also be used. The advantage of the plastic ring or another ring made of non-conductive and / or non-magnetic material is that the ring can be positioned very close to the motor because it does not affect the motor. Accordingly, such a design helps to reduce the installation space required for the electric drive unit.

[0101] Neither the sealing strip nor the sealing plate need to be designed as separate components, but can also be formed by parts of the electric drive unit, for example by a cover plate of the stator of the electric motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0102] The above invention will be explained in detail below with reference to the relevant drawings in the context of the relevant technology, wherein the relevant drawings are used to show the preferred design scheme. The purely schematic drawings do not impose any restrictions on the present invention. It should be noted that the embodiments shown in the drawings are not limited to the dimensions shown. The drawings include

[0103] Figure 1 : A cross-sectional view of a first embodiment of the electric drive unit according to the present invention,

[0104] Figure 2 : A cross-sectional view of a second embodiment of the electric drive unit according to the present invention,

[0105] Figure 3 : A housing component of the electric drive unit according to the present invention,

[0106] Figure 4 : A cross-sectional view of a gap sealing region or a receiving cavity region of a first embodiment of an electric drive unit according to the present invention,

[0107] Figure 5 : A cross-sectional view of a gap sealing region or a receiving cavity region of a second embodiment of an electric drive unit according to the present invention,

[0108] Figure 6 : A cross-sectional view of a gap sealing region or a receiving cavity region of a third embodiment of an electric drive unit according to the present invention,

[0109] Figure 7: A cross-sectional view of a gap sealing region or a receiving cavity region of a fourth embodiment of an electric drive unit according to the present invention,

[0110] Figure 8 : A cross-sectional view of a gap sealing region or a receiving cavity region of a fifth embodiment of an electric drive unit according to the present invention,

[0111] Fig. 9 : A cross-sectional view of a gap sealing region or a receiving cavity region of a sixth embodiment of an electric drive unit according to the present invention, and

[0112] Fig.10 : A cross-sectional view of the gap sealing area or the accommodating cavity area of ​​the seventh embodiment of the electric drive unit described in the present invention. DETAILED DESCRIPTION

[0113] exist Figure 1 Detailed description of the invention shows a cross-sectional view of a first embodiment of an electric drive unit 1 according to the present invention.

[0114] Here, the motor 20, the clutch device 30, the output device 3 and two gearbox input shafts 70 and 71 are shown. The clutch device 30 has a separate clutch 31 and a dual clutch device 32, wherein the dual clutch device 32 includes a first clutch 33 and a second clutch 34. The output side of the first clutch 33 is connected to the first gearbox input shaft 70 in a torsion-proof manner, and the output side of the second clutch 34 is connected to the second gearbox input shaft 71 in a torsion-proof manner. The motor 20 includes a rotor 21 and a stator 22.

[0115] Also shown is a clutch cover 40, which is connected to the separating clutch 31 and the rotor 21 of the electric machine 20 by means of a rotationally fixed connection 23. In addition, the input element 35 of the dual clutch device 32 is designed as a center plate and is connected to the clutch cover 40 in a rotationally fixed manner. Here, the separating clutch 31 and the dual clutch device 32 are supported at least radially on the clutch cover 40.

[0116] The rotatable elements of the electric drive unit 1 are mounted rotatably about a rotation axis 2 of the electric drive unit 1 .

[0117] The torque provided by the internal combustion engine (not shown) can be transmitted to the disconnect clutch 31 through the output device 3, which is designed as an intermediate shaft mechanically connected to the damper 72. The torque provided by the motor 20 can be transmitted to the input element 35 of the dual clutch device 32 through the clutch cover 40.

[0118] In this way, the torque of the electric motor 20 can be transmitted to the corresponding transmission input shaft 70 , 71 by closing one of the clutches 33 , 34 , and the torque of the internal combustion engine can be connected by closing the separation clutch 31 .

[0119] The electric drive unit 1 further comprises a housing 10 having a first housing component 11 and a second housing component 13, wherein the clutch device 30 is arranged in a first housing interior 12 of the first housing component 11, and the electric motor 20 is arranged in a second housing interior 14 of the second housing component 13. The two housing components 11, 13 are fixedly connected to each other by means of connecting screws 16 via a plurality of connection points 15 distributed on the circumference.

[0120] Here, the clutch cover 40 substantially separates the first housing interior 12 from the second housing interior 14 and thus spatially separates the clutch device 30 from the motor 20, wherein the clutch cover 40 is designed as a largely closed steel sheet metal part. This ensures that particles released by the disconnect clutch 31 or by one of the clutches 33, 34 do not directly reach the motor 20.

[0121] The clutch cover 40 has an axially and radially extending component, wherein the axial extension of the radial inner side 43 of the clutch cover allows the generated particles to be removed axially, in particular away from the electric machine 20 .

[0122] Since the clutch cover 40 is designed as a component that rotates around the rotation axis 2 and the housing 10 is fixed, when the electric drive unit 1 is running, there is a gap 51 between the clutch cover 40 and the housing 10, and therefore, there is relative rotation between these elements.

[0123] In order to prevent the particles transferred by the clutch cover 40 from reaching the motor 20 through the gap 51 , the electric drive unit 1 includes a gap seal 50 and a receiving chamber 60 for receiving the generated particles.

[0124] Here, the gap seal 50 is formed by the clutch cover 40, the sealing element 52 and the sealing strip 53. The sealing strip 53 is designed as a ring and is arranged in the first housing interior 12 on the first housing component 11. Here, an end portion 41 of the clutch cover 40 substantially corresponds to the end of the clutch cover 20 facing away from the electric machine 20 and extends axially in the radial direction beside the sealing strip 53. The sealing element 52 is designed as a sealing plate and is arranged in the connection point 15 between the two housing components 11, 13, wherein it extends radially inwards and in the process forms a section of the gap seal 50 between itself and the outer side 42 of the clutch cover 40. Here, in this section of the outer contour of the clutch cover 40, the contour of the sealing element 52 runs in such a way that the gap 51 has a substantially constant thickness or width in this section.

[0125] The accommodating chamber 60 formed in the first housing component 11 is designed as a depression on the side of the first housing component 11 facing the connection part 15, wherein the sealing element 52 forms the boundary of the accommodating chamber 60 in the axial direction or closes it in terms of fluid technology in the process. The accommodating chamber 60 is connected to the gap seal 50 or its gap 51 in a fluid technology manner by means of a channel 61. Here, the channel 61 forms the only opening 65 of the accommodating chamber 60. The channel 61 is arranged axially between the sealing element 52 and the sealing strip 53. In other words, it is positioned axially between the terminal part 41 of the clutch cover 40 that is axially facing away from the motor 20 and the motor 20.

[0126] In this way, particles released by the clutch device 30 move along the inner side 43 of the clutch cover 40 and are subsequently ejected therefrom.

[0127] Particles ejected from the end portion 41 of the clutch cover 40 radially facing away from the electric motor 20 will not directly hit the sealing strip 53, but will hit a radially offset portion of the housing 10 located behind it, because the end portion 41 of the clutch cover 40 protrudes axially beyond the sealing strip 53.

[0128] In order to reach the motor 20, the particles must flow through an axial gap 51 between the end portion 41 of the clutch cover 40 facing away from the motor 20 in the radial direction and the sealing strip 53 located on the first housing component 11. The particles must then flow radially inward and move along the gap 51 between the sealing element 52 and the clutch cover 40.

[0129] In order to enter the sealing gap, the particles must move radially inward over the step between the inner contour of the housing 10 and the inner contour of the sealing strip 53 .

[0130] The entire gap seal 50 is designed so that it can severely hinder or completely prevent the passage of particles.

[0131] The rotating components of the clutch device 30 in the first housing component 11 generate tangential airflow, lifting the particles and subjecting them to the centrifugal force. In this way, the rotation of the rotating components of the clutch device 30 can prevent or hinder the movement of the particles toward the radial inside.

[0132] After tangentially passing the sealing strip 53, particles sliding over the inner side of the housing or an element arranged there will sooner or later fall into the opening 65 formed by the channel 61, which connects the first housing interior 12 or the second housing interior 14 and the receiving chamber 60. Particles falling into the receiving chamber 60 cannot return to the first or second housing interior 12, 14.

[0133] In addition, the angled shape and the small gap width result in that the airflow in or through the gap 51 is significantly restricted, so that almost no particles are sent into the gap 51 or even pass through it.

[0134] If particles pass through the gap 51 between the terminal portion 41 of the clutch cover 40 and the sealing strip 53 and do not enter the passage 61 , they are located in the gap 51 between the sealing element 52 and the clutch cover 40 .

[0135] This gap 51 is continuously led to the radial inside, so that the particles accelerated in the tangential direction by the rotation of the clutch cover 40 are sent out of the gap 51 again to the radial outside under the action of centrifugal force.

[0136] In this way, the particles that re-enter the gap 51 will at least be moved radially outward again under the action of centrifugal force before finally passing through the gap seal 50 , and will be located in the accommodating chamber 60 through the gap 61 .

[0137] In the embodiment shown here, the accommodating chamber 60 has only one opening 65 , thereby preventing airflow from entering from one opening 65 to another, and preventing particles in the accommodating chamber 60 from being lifted up again and sent out of the accommodating chamber 60 .

[0138] In this way, the second housing interior 14 in which the electric motor 20 is arranged can be protected from the influence of particles of the clutch device 40 due to the gap seal 50 and the accommodating chamber 60 .

[0139] Figure 2 FIG. 2 shows a cross-sectional view of a second embodiment of an electric drive unit 1 according to the present invention. The electric drive unit 1 is basically the same as Figure 1 The embodiment of the present invention is consistent with the electric drive unit 1 in the embodiment of the present invention, except that the channel 61 connecting the first housing inner cavity 12 and the accommodating cavity 60 in a fluidic manner is axially arranged on the other side of the sealing strip 53. That is, the terminal portion 41 of the clutch cover 40 facing away from the motor 20 in the axial direction is axially positioned between the channel 61 and the motor 20. In this way, the particles discharged from the clutch device 30 can fall into the accommodating cavity 60 through the channel 61 before entering the gap seal 50 and be retained there.

[0140] Figure 3 FIG. 1 shows a first housing component 11 of the electric drive unit 1 according to the present invention. Figure 1 In addition, it is shown here Figure 3 , and shows Figure 1 The corresponding cross section of the embodiment shown in FIG.

[0141] Further, it can be seen here that a plurality of accommodating chambers 60 can be designed. Here, each of the accommodating chambers 60 is connected to the first housing inner chamber 12 by means of a channel 61. Further, it can be seen that the channels 61 each have a tangential member in their respective extensions. In this way, the shape and orientation of the channels 61 are adjusted according to the rotation direction of the clutch device 30 and the splashing direction of the particles, so that the area where the particles enter the accommodating chamber 60 from the channel 61 is located behind the opening 65 where the particles enter the channel 61 in terms of the rotation direction.

[0142] Figure 4 An enlarged cross-sectional view of a gap seal 50 region or a receiving cavity 60 region of a first embodiment of an electric drive unit 1 according to the present invention is shown.

[0143] Here, Figure 4 The view shown in FIG. 1 is basically a diagram of the electric drive unit 1 according to the present invention. Figure 1 or Figure 2 A cross-sectional view is drawn based on the cross-section shown in FIG.

[0144] but Figure 4 The difference lies in that the gap seal 50 or the receiving chamber 60 is designed differently from the previously shown embodiment.

[0145] Firstly, the difference is that the gap seal 50 does not comprise an additional sealing strip 53 or sealing element 52. However, a recess 54 is provided in the region between the receiving chamber 60 and the first housing interior 12 at the end of the first housing component 11 facing the connection point 15. An intermediate chamber 55 is formed by the recess 54 and the second housing component 13 which delimits the recess 54 in the axial direction. The end section 41 of the clutch cover 40 is arranged in this intermediate chamber 55, wherein the gap seal 50 is formed between the contours of the outer side and the inner side 42, 43 of the clutch cover 40, in the section of the end section 41 arranged in the intermediate chamber 55, and in the contours of the intermediate chamber 55 and the first and second housing components 11, 13 which delimit the intermediate chamber 55. A channel 61 connects the receiving chamber 60 to the intermediate chamber 55 and then to the first housing interior 12, wherein a further channel 64 is shown in dashed lines at an alternative position. The channel 61 is arranged at the end of the intermediate space 55 or the receiving space 60 axially facing the electric motor 20, so that it adjoins the connecting point 15 and is axially delimited by the second housing component 13. A further channel 64, shown with dashed lines, extends from the end of the intermediate space 55 axially facing away from the electric motor 20 to a receiving space not shown here.

[0146] Figure 5 An enlarged cross-sectional view of a gap seal 50 region or a receiving cavity 60 region of a second embodiment of an electric drive unit 1 according to the present invention is shown.

[0147] Here, Figure 5 The electric drive unit 1 according to the present invention is basically shown in Figure 1 or Figure 2 The embodiment shown is based on a cross-sectional view.

[0148] but Figure 5 The difference lies in that the gap seal 50 or the accommodating cavity 60 is designed differently from those of the embodiments.

[0149] and Figure 4 Likewise, there is no sealing strip 53 or sealing element 52 here either. Figure 4 Similar to Figure 5In the first housing component 11, a gap 54 is formed between the accommodating chamber 60 and the first or second housing inner chamber 12, 14, which is bounded in the axial direction by the second housing component 13, thereby forming an intermediate chamber 55. Here, the terminal part 41 of the clutch cover 40 arranged in the intermediate chamber 55 for forming the gap seal 50 does not extend in the axial direction, but in the radial direction. In this way, the intermediate chamber 55 basically corresponds to an annular groove in the housing 10. In order to form a fluid technical connection between the intermediate chamber 55 and the two housing inner chambers 12, 14 and the accommodating chamber 60, the channel 61 is arranged on the radial outer boundary of the intermediate chamber 55. In addition, and Figure 4 The difference from the embodiment shown in FIG. 1 is that the channel 61 is a component of a radial through hole 62 that passes through the first housing component 11 from the outside and is connected to the first housing inner chamber 12 or the second housing inner chamber 14. Here, a closing element 63 is arranged in a section of the through hole 62 that connects the surroundings of the electric drive unit 1 and the accommodating chamber 60 to prevent dirt or moisture in the surroundings from penetrating into the housing 10.

[0150] Figure 6 An enlarged cross-sectional view of a gap seal 50 region or a receiving cavity 60 region of a third embodiment of an electric drive unit 1 according to the present invention is shown.

[0151] Here, Figure 6 The electric drive unit 1 of the present invention is basically Figure 1 or Figure 2 The embodiment shown is based on a cross-sectional view.

[0152] Here, Figure 6 The difference lies in the design of the sealing element 52 which is different from these embodiments.

[0153] and Figure 1 The difference is that the sealing element 52 is not designed as a sealing plate but as a ring, wherein the sealing element 52 is arranged in the second housing inner cavity 14 on the second housing component 13 and close to the end of the second housing component 13 facing away from the motor 20. Figure 6 In addition to Figure 1 In addition to the channel 61 equivalent to the channel 61 formed or arranged in the embodiment, an additional channel 64 is shown by a dotted line, wherein the additional channel 64 is basically arranged in Figure 2 At the location of the middle channel 61. Here, too, it is preferred that the additional channel 64 is designed to be fluidically connected to another receiving chamber, which is shown here as receiving chamber 60.

[0154] In particular, the sealing element 52 and the sealing strip 53 are designed here as plastic rings.

[0155] Figure 7 An enlarged cross-sectional view of a gap seal 50 region or a receiving cavity 60 region of a fourth embodiment of an electric drive unit 1 according to the present invention is shown.

[0156] Here, Figure 7 The electric drive unit 1 of the present invention is basically Figure 1 or Figure 2 The embodiment shown is based on a cross-sectional view.

[0157] Further, Figure 7 Basically Figure 6 Relatively speaking, the difference is Figure 7 The gap seal 50 in the embodiment does not include a sealing element 52. Here, in the section where the gap 51 is to be formed between the outer side 42 of the clutch cover 40 and the sealing element 52, the gap seal 50 is formed directly between the outer side 42 of the clutch cover 40 and the second housing component 13.

[0158] Figure 8 An enlarged cross-sectional view of a gap seal 50 region or a receiving cavity 60 region of a fifth embodiment of an electric drive unit 1 according to the present invention is shown.

[0159] Here, Figure 8 The electric drive unit 1 of the present invention is basically Figure 1 or Figure 2 The embodiment shown is based on a cross-sectional view.

[0160] but Figure 8 The difference lies in that the gap seal 50 or the accommodating cavity 60 is designed differently from those of the embodiments.

[0161] Here, Figure 8 The design of the gap seal 50 or the receiving chamber 60 is similar to Figure 5 The end portion 41 of the clutch cover 40 extends in the radial direction and forms the gap seal 50 together with the first housing component 11. The difference here is that the gap seal 50 is very short and also only exists in the area of ​​the clutch cover 40 adjacent to the first housing component 11. Figure 5Similarly, the terminal portion 41 of the clutch cover 40 is also axially arranged between the two sides of the channel 61 that axially form the boundary of the channel 61, wherein the first housing component 11 is the side that forms the boundary and faces away from the motor 20, and the second housing component 13 is the side that forms the boundary and faces the motor 20. Here, like the part that forms the boundary of the channel 61 formed by the second housing component 11, the part that forms the boundary of the channel 61 formed by the first housing component 11 continues to extend in the radial direction.

[0162] Fig. 9 An enlarged cross-sectional view of a gap seal 50 region or a receiving cavity 60 region of a sixth embodiment of an electric drive unit 1 according to the present invention is shown.

[0163] Here, Fig. 9 The electric drive unit 1 of the present invention is basically Figure 1 or Figure 2 The embodiment shown is based on a cross-sectional view.

[0164] but Fig. 9 The difference lies in that the gap seal 50 or the accommodating cavity 60 is designed differently from those of the embodiments.

[0165] Fig. 9 Similar to Figure 8 The design of the gap seal 50 or the accommodating cavity 60 in the embodiment of the present invention is different only in the design of the channel 61 and the gap seal 50. The side of the channel 61 that forms the boundary of the channel 61 and faces away from the motor 20 is Fig. 9 The distance from the motor 20 in the axial direction is not farther than the terminal portion 41 of the clutch cover 40, but is basically at the same axial position as the terminal portion 41 of the clutch cover 40. Therefore, the channel 61 is axially closer than Figure 8 The channel 61 in the housing is designed to be narrower.

[0166] and Figure 8 As in the embodiment of the present invention, the gap seal 50 is formed by the terminal portion 41 of the clutch cover 40 extending in the radial direction and the first housing component 11. In addition, the gap seal 50 is basically the same as Figure 7 The gap seal 50 has a longer gap 51, especially in the axial direction. Figure 8 The gap 51 in the embodiment is longer.

[0167] Fig.10 An enlarged cross-sectional view of a gap seal 50 region or a receiving cavity 60 region of a seventh embodiment of an electric drive unit 1 according to the present invention is shown.

[0168] Here, Fig.10 The cross-sectional view shown in FIG. 1 is basically a cross-sectional view of the electric drive unit 1 according to the present invention. Figure 6 An alternative to the embodiment shown in .

[0169] Fig.10 and Figure 6 The difference lies in the design of the housing components 11 , 13 in the region of the gap seal 50 or the receiving space 60 and in the arrangement of the receiving space 60 .

[0170] Here, the receiving space 60 is designed in the second housing component 13 as a depression in the side of the second housing component 13 facing the connecting point 15. In addition, the connecting bolt 16 is arranged on the first housing component 11 and not on the second housing component 12.

[0171] The receiving chamber 60 is fluidically connected to the gap seal 50 or directly to the first housing interior 12 by means of a channel 61. The channel 61 is arranged axially next to the sealing strip 53 on the side facing away from the motor 20. That is, it is positioned axially between the end portion 41 of the clutch cover 40 facing away from the motor 20 and the first housing component 11, wherein it is delimited on the side facing away from the motor 20 by the first housing component 11.

[0172] Here, the channel 61 forms the only opening 65 of the receiving chamber 60, wherein Figure 6 Similarly, in addition to the channel 61, a further channel 64 is further indicated by a dotted line. Here, the further channel 64 is arranged between the sealing element 52 and the sealing strip 53 in the axial direction.

[0173] Here too, it is preferred that the additional channel 64 is designed in such a way that it is fluidically connected to a further receiving chamber, which is shown here as receiving chamber 60 .

[0174] In this way, the electric drive unit of the present invention has the advantages of small installation space and low assembly cost, while also combining the advantages of reliable operation and long service life.

[0175] Description of Reference Numerals

[0176] 1 Electric drive unit

[0177] 2 Rotating axis of the electric drive unit

[0178] 3 Output devices

[0179] 10 Housing

[0180] 11. First shell component

[0181] 12 first shell cavity

[0182] 13. Second shell component

[0183] 14. Second shell cavity

[0184] 15 Connection parts

[0185] 16 Connecting bolts

[0186] 20 Motor

[0187] 21 Rotor

[0188] 22 Stator

[0189] 23 Anti-twist connection

[0190] 30 Clutch

[0191] 31 Separate clutch

[0192] 32 Dual Clutch Unit

[0193] 33 First Clutch

[0194] 34 Second Clutch

[0195] 35 Input element of dual clutch

[0196] 40 Clutch cover

[0197] 41 Clutch cover end portion

[0198] 42 Outside of clutch cover

[0199] 43 Inner side of clutch cover

[0200] 50 Gap sealing

[0201] 51 Gap

[0202] 52 Sealing element

[0203] 53 Sealing strip

[0204] 54 Gap

[0205] 55 Gap

[0206] 60 Accommodation chamber

[0207] 61 channels

[0208] 62 holes

[0209] 63 Closure element

[0210] 64 additional channels

[0211] 65 Opening

[0212] 70 First gearbox input shaft

[0213] 71 Second transmission input shaft

[0214] 72 Shock absorber

Claims

1. An electric drive unit (1) for a hybrid module for a motor vehicle connected to an internal combustion engine, comprising in a housing (10) an electric motor (20) for generating a drive torque and at least one clutch device (30) for transmitting the provided torque to at least one gearbox input shaft (70, 71), wherein: The electric drive unit (1) comprises a clutch cover (40) which is connected to the rotor (21) of the electric motor (20) in a rotationally fixed manner and at least partially realizes a torque transmission path from the electric motor (20) to at least one of the gearbox input shafts (70, 71), wherein at least one of the clutch devices (30) and the electric motor (20) are arranged on opposite sides of the clutch cover (40), and the clutch cover (40) and a sealing element (52) of the electric drive unit (1) together realize a gap seal (50), and the gap seal (50) is used to prevent particles from passing through.

2. The electric drive unit (1) according to claim 1, characterized in that The clutch cover (40) has an extension section with at least an axial component, and the at least one clutch device (30) and the electric motor (20) are arranged on radially opposite sides of the clutch cover (40).

3. The electric drive unit (1) according to one of the preceding claims, characterized in that The housing (10) comprises at least two housing components (11, 13) which are mechanically fixed to each other, wherein a gap (51) formed by the gap seal (50) is located substantially in the interface between the two housing components (11, 13).

4. The electric drive unit (1) according to claim 3, characterized in that: The sealing element (52) is arranged in the interface between the two housing components (11, 13).

5. The electric drive unit (1) according to claim 1, characterized in that A part of the gap seal (50) is realized on one side by a sealing strip (53) which is fastened to the housing (10).

6. The electric drive unit (1) according to claim 5, characterized in that The end portion (41) of the clutch cover (40) facing away from the motor (20) in the axial direction protrudes in the axial direction to cover the sealing strip (53).

7. The electric drive unit (1) according to claim 1, characterized in that A receiving chamber (60) for receiving solid particles is provided in or on at least one of the housing components (11, 13) of the electric drive unit (1), and the receiving chamber (60) and an inner chamber (12, 14) of the electric drive unit (1) formed by the housing (10) are fluidically connected by means of a channel (61) to guide the particles released by the electric drive unit (1) to the receiving chamber (60).

8. An electric drive unit (1) for a hybrid module for a motor vehicle connected to an internal combustion engine, comprising in a housing (10) an electric motor (20) for generating a drive torque and at least one clutch device (30) for transmitting the provided torque to at least one gearbox input shaft (70, 71), wherein: A receiving chamber (60) for receiving solid particles is provided in or at at least one housing component (11, 13) of the electric drive unit (1), and the receiving chamber (60) and an inner chamber (12, 14) of the electric drive unit (1) formed by the housing (10) are connected in a fluidic manner by means of a channel, so as to guide the particles released by the electric drive unit (1) to the receiving chamber (60); The electric drive unit (1) comprises a clutch cover (40) which is connected to the rotor (21) of the electric motor (20) in a substantially torque-proof manner and at least partially implements a torque transmission path from the electric motor (20) to at least one of the gearbox input shafts (70, 71), wherein at least one of the clutch devices (30) and the electric motor (20) are arranged on opposite sides of the clutch cover (40), and i) the passage (61) is axially positioned between a terminal portion (41) of the clutch cover (40) axially facing away from the motor (20) and the motor (20); or ii) The terminal portion (41) of the clutch cover (40) facing away from the motor (20) in the axial direction is positioned axially between the passage (61) and the motor (20).

9. The electric drive unit (1) according to claim 8, characterized in that The channel (61) has a tangentially extending member.

10. The electric drive unit (1) according to claim 8 or 9, characterized in that: At least one of the accommodating chambers (60) is arranged below a lower half of the inner side of the axial section of the housing (10).

11. The electric drive unit (1) according to claim 8, characterized in that The accommodating chamber (60) is openly connected to an axial end surface opening of the housing components (11, 13), and has a boundary surface between the housing components (11, 13) on the axial end surface.

12. The electric drive unit (1) according to claim 8, characterized in that The channel (61) is a component of a recess (62) which is made radially in the housing components (11, 13) and which passes through the receiving space (60).

13. A motor vehicle drive device having an electric drive unit (1) according to any one of claims 1 to 12 and at least one further machine element on the output side of the electric drive unit (1), wherein: The electric drive unit (1) and another machine element are mechanically connected together via at least one clutch device (30) of the electric drive unit (1).

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