DE102015220993A1 - Assembly unit for an electric drive unit within a drive train of a vehicle - Google Patents

Assembly unit for an electric drive unit within a drive train of a vehicle

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Publication number
DE102015220993A1
DE102015220993A1 DE102015220993.8A DE102015220993A DE102015220993A1 DE 102015220993 A1 DE102015220993 A1 DE 102015220993A1 DE 102015220993 A DE102015220993 A DE 102015220993A DE 102015220993 A1 DE102015220993 A1 DE 102015220993A1
Authority
DE
Germany
Prior art keywords
coolant
cooling
assembly unit
line
servomotor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE102015220993.8A
Other languages
German (de)
Inventor
Alexander Markow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Priority to DE102015220993.8A priority Critical patent/DE102015220993A1/en
Publication of DE102015220993A1 publication Critical patent/DE102015220993A1/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D27/00Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/14Details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00Friction clutches
    • F16D13/58Details
    • F16D13/72Features relating to cooling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D28/00Electrically-actuated clutches
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2300/00Special features for couplings or clutches
    • F16D2300/02Overheat protection, i.e. means for protection against overheating
    • F16D2300/021Cooling features not provided for in group F16D13/72 or F16D25/123, e.g. heat transfer details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2300/00Special features for couplings or clutches
    • F16D2300/02Overheat protection, i.e. means for protection against overheating
    • F16D2300/021Cooling features not provided for in group F16D13/72 or F16D25/123, e.g. heat transfer details
    • F16D2300/0214Oil or fluid cooling

Abstract

Assembly unit (28) for an electric drive unit (10) within a drive train of a vehicle, comprising a servomotor (26) for actuating a clutch (22) of an electric drive unit (10), wherein the servomotor (26) comprises control electronics and a cooling element (40 ), wherein the cooling element (40) serves to cool the control electronics and has a coolant inlet (40b) and a coolant outlet (40c), which are connected to one another via a coolant channel (40d) formed on the cooling element (40), and coolant lines (32 ) in the form of a coolant supply line (32a) and a coolant discharge line (32b) for supplying and discharging coolant to the cooling element (40) respectively connected to the coolant inlet (40b) and the coolant outlet (40b) of the cooling element (40) ,

Description

  • The invention relates to an assembly unit for an electric drive unit within a drive train of a vehicle.
  • In the EP 2 708 768 A2 a drive unit for a motor vehicle with an electric machine and a clutch is disclosed. In this case, a rotationally fixed connection between an internal combustion engine and the electric machine can be achieved via the coupling. An actuator for detecting or releasing the clutch is controlled by a servomotor. In this case, the servomotor is arranged outside a housing of the transmission and operatively connected by means of a shaft and an actuating device with the coupling. An upper limit of the operating temperature of such actuators is about 120 degrees Celsius. When operating above this temperature, in particular, the lifetime of the control electronics of the servomotor decreases sharply. To lower the temperature, the servomotor for this purpose has a cooling element with ribs. However, due to the location of the servomotor within the powertrain, the ambient temperatures may be close to or even higher than the recommended maximum temperature. There is the possibility that a sufficient cooling of the control electronics is no longer possible.
  • It is therefore an object to provide a servomotor with a cooling element, which ensures sufficient cooling even at elevated ambient temperatures and also easy to manufacture and assemble.
  • This object is achieved by an assembly unit according to claim 1. In the dependent claims and in the further embodiments, particularly advantageous embodiments of the assembly unit are shown.
  • Such an assembly unit can for example be pre-assembled and mounted as an assembly in a simple and fast manner to the drive train, in particular in the drive unit or mounted. If necessary, the assembly unit can also be used exclusively for an electric drive unit within a drive train of a vehicle. The assembly unit in this case comprises in particular a servo motor for actuating a clutch of an electric drive unit. In this case, the servomotor can establish or release an operative connection between the electric drive unit and a further drive unit, for example an internal combustion engine. A possible embodiment for actuating the clutch by means of a servomotor is in the EP 2708768 A2 shown. The complete revelation of EP 2707868 A2 is to be regarded as the content of this document. However, the actuation of the coupling of the drive unit can also be done in a similar or in another way.
  • In addition to the servomotor, the assembly unit also has control electronics for controlling the servomotor and a cooling element for cooling the control electronics. In this case, the control electronics may be formed, for example, by a circuit board having a plurality of electronic components. The cooling element serving to cool the control electronics forms inter alia a coolant inlet and a coolant outlet. In this case, a coolant is supplied via a coolant inlet to the cooling element and discharged via a coolant outlet. The coolant flows through the cooling element. On the cooling element, a cooling channel is further formed, in particular incorporated in this, which connects the coolant inlet and the coolant outlet with each other.
  • The cooling element is preferably thermally conductively operatively connected to the control electronics, so that a heat flow from the control electronics to the cooling element takes place by means of the cooling channel on the coolant. The coolant flowing through the coolant channel absorbs this heat and transports it away. In this case, the assembly unit further comprises coolant lines in the form of a coolant supply line and a coolant discharge line, which are respectively connected to the coolant inlet and the coolant outlet of the cooling element. The coolant line allows for easy supply and removal of coolant to the cooling element.
  • The assembly unit is designed such that a simple pre-assembly is easily and completely possible. As a result, a final assembly of the assembly unit to a drive unit with a few simple steps and thus can be performed time-saving. Further details on the construction of the assembly unit are disclosed below. Furthermore, the position motor in conjunction with the cooling element and the coolant lines enables improved cooling of the control electronics. As a result, the life of the control electronics and thus the life of the entire system is significantly extended.
  • In an advantageous embodiment, the cooling element is arranged on a housing of the servomotor and closes this tightly.
  • In this case, for example, the control electronics is arranged at an end portion of the housing, wherein the cooling element, the housing at the end of tight, in particular fluid-tight, gas-tight or particle-tight, concludes. This is the Control electronics protected against contamination and against ingress of liquids.
  • It is further proposed that the cooling element is in heat-conducting contact with the control electronics or at least a part of individual components of the control electronics.
  • In this case, the cooling element at its, the control electronics facing side, form corresponding elevations that contact the components of the control electronics thermally conductive. The components represent in particular electronic components. The heat generated by the components is thereby effectively dissipated. It is possible to use a thermal paste, which increases a heat transfer from the electrical components to the cooling element again.
  • In a particularly favorable embodiment, the cooling element is designed as an aluminum part.
  • As a result, a lightweight and inexpensive production is possible. Furthermore, aluminum has a good heat-conducting property.
  • It is further proposed that in each case a nozzle for attachment of the coolant lines is formed or arranged at the coolant inlet and / or the coolant outlet.
  • In this case, the nozzle can for example be formed directly by the cooling element, in particular in one piece with this. In another embodiment, it is possible to arrange the nozzle within the coolant inlet and / or the coolant outlet. Conveniently, the respective nozzle is individually pressed into the associated opening, so the coolant inlet or the coolant outlet. The nozzle can be made for example of steel or plastic. Advantageously, the respective coolant line is arranged at its associated nozzle or fixed thereto, in particular arranged fluid-tight or fixed.
  • Furthermore, there is the possibility that the respective coolant line is arranged or attached fluid-tightly directly to the coolant inlet or the coolant outlet, in particular is pressed in.
  • In a further embodiment, a line divider is arranged or formed on an end of the coolant line opposite the cooling element.
  • In this case, the line divider may in particular be formed integrally with the coolant line. For example, a separate coolant circuit for cooling the servomotor can be formed on the vehicle, or a first coolant circuit for another system of the vehicle is already present, to which the assembly unit is coupled as a second coolant circuit for cooling the control electronics. This first coolant circuit can be, for example, a coolant circuit for an electric drive module, in particular for cooling the stator, or for cooling a battery that serves the electric drive. In a further embodiment, it is also possible to use the coolant circuit of an internal combustion engine, provided that it supplies a coolant with a sufficiently low temperature.
  • The line divider can be formed integrally on the coolant line. In another embodiment variant, the line divider may have a connecting piece, via which the line divider is arranged on the coolant line. The line divider removes a proportion of the coolant quantity from the first cooling circuit, wherein the assembly unit forms a second coolant circuit. This branched coolant is passed through the cooling element and fed back to the first coolant circuit. In addition, it is possible for the second coolant circuit of the assembly unit to be connected in series with the first coolant circuit, as an alternative to the explained parallel arrangement. When arranging the coolant circuits in series, the line divider is conveniently replaced by a line connection.
  • There is also the possibility that the line divider is arranged on a module housing of the electric drive unit or formed by the module housing of the electric drive unit, wherein the coolant lines are fixedly and fluid-tightly connected to the line divider or can be connected.
  • It is proposed that the respective coolant line by means of an elastic element with the line divider and / or the cooling element is firmly connected.
  • The elastic element is conveniently designed as a connecting tube. In this case, the elastic element, in particular the connecting hose, the respective coolant line with the respective line divider, in particular the nozzle, and / or the cooling element, in particular its respective nozzle, solid and fluid-tight. A connecting hose is conveniently attached via a clamp. As a result, the assembly unit can be pre-assembled in a simple manner. In addition, the assembly unit and in particular the coolant lines is protected by the elastic element against vibration excitations by vibrations.
  • Conveniently, a fastening element is formed or arranged on at least one of the coolant lines.
  • A fastener may be used, for example, to attach the coolant line to a module housing of a component of the drive train, for example on a module housing of the drive module or on a module housing of a transmission. In this case, a fastening element can be arranged or fastened simultaneously on one or more coolant lines. Likewise, a plurality of fastening elements may be arranged or formed at the same time on a coolant line or on a plurality of coolant lines.
  • A module may be a component of the drive train, for example, a drive motor, an electric drive unit or a transmission. The module housing corresponds to the respective housing of the corresponding module of the drive train.
  • In a particularly expedient embodiment variant, a connecting portion may be formed with a sealing element at one end of the coolant line.
  • In this case, the connecting portion can fluid-tightly engage in an opening, in particular in the coolant inlet or the coolant outlet of the cooling element. It is also possible that the connecting portion engages in a line divider, in particular when the line divider is integrally formed on or in a module housing. This connecting portion is advantageously formed on both sides of the respective coolant line or on one side of the coolant line, in particular on the opposite side of the cooling element. In this case, the connecting portion conveniently has a sealing element which on the one hand enables a fixed connection and on the other hand a fluid-tight connection.
  • In a particularly advantageous embodiment variant, the coolant lines or the connecting sections of the coolant lines of the assembly unit are aligned with one another by an alignment element.
  • In this case, the alignment element may be formed integrally with the coolant lines or the connecting sections. Likewise, the alignment member may be attached or disposed on the coolant conduits or the connecting portions. In this case, the alignment element is advantageously arranged on an end region of the coolant line or directly on the alignment element. By the alignment element, an arrangement or positioning of the respective connecting portions or the respective coolant lines is generated, which allow easy mounting. In this case, the alignment element may be formed for example by a sheet-metal element with recesses, which pass through the connecting portions.
  • The assembly unit according to the invention will be illustrated below by way of example with reference to several figures. Show it:
  • 1 an electrical drive unit for a drive train of a vehicle of the prior art in cross section;
  • 2 a module housing of the electric drive unit with an assembly unit arranged thereon, which comprises a servomotor with a cooling element and coolant lines;
  • 3 the module housing with the assembly unit 2 in a front view;
  • 4 the module housing with the assembly unit 2 in a plan view;
  • 4a a section through the module housing along the cutting plane CC from the 4 ;
  • 5 a further sectional view of the module housing with the assembly unit 2 ;
  • 6 the assembly unit in a plan view;
  • 7 the assembly unit in a further perspective view;
  • 8th a servomotor of the assembly unit with a cooling element in an exploded perspective view;
  • 9 a further sectional view of the servomotor in plan view;
  • 10 a further illustration of the servomotor with the cooling element in side view with a partial cross section;
  • 11 a further embodiment of the module housing with the assembly unit;
  • 12 a line divider 11 in cross-section;
  • 13 the line divider 11 in another cross-sectional view.
  • In the 1 is an electric drive unit 10 according to the EP 2 708 768 A2 shown. The electric drive unit 10 is explained briefly below, wherein further embodiments of the cited document can be found. The EP 2 708 768 A2 is to be regarded as the complete content of this application.
  • The electric drive unit 10 here has an electric machine 12 with a stator 14 and a rotor 16 on. Here is the stator 14 rotatably with a module housing 18 , shown in the following figures, connected. The rotor 16 is concentric with the stator 14 arranged and freely rotatable relative to this stored. In this case, the electric drive unit 10 a drive element 20 which is rotatable and concentric with the rotor. Here are the rotor 16 and the drive element 20 via a clutch 22 non-rotatably but releasably connected to each other. Opening or closing the clutch 22 takes place via an actuating device 24 by a servomotor 26 is pressed. The drive element 20 is hereby operatively connected to a further, not shown drive unit. The further drive unit may be, for example, an internal combustion engine, wherein the drive element 20 in this case forms a rotationally effective connection with a crankshaft of the internal combustion engine. The servomotor 26 can the clutch 22 with the help of the operating unit 24 open and close, so that an operative connection between the electric machine 12 the electric drive unit 10 and another drive unit is manufactured or separated.
  • In the 2 to 5 is the module housing 18 with an assembly unit 28 presented in several perspectives. The assembly unit 28 includes here the servomotor 26 with a cooling element 40 and two coolant lines 32a , b in the form of a coolant supply line 32a and a coolant discharge line 32b , The servomotor 26 is here at an opening of the module housing 18 arranged and engages from radially outside through the opening in the radially inner region in which the electric drive unit, not shown here, is arranged a. In this case, the servo motor 26 , as in 7 To see a wave with a profile, with a wave 27 for operative connection with the actuating device 24 is connectable. The servomotor has a flange here 26a , with several openings 26b on, that of attaching the assembly unit 28 , in particular the servomotor 26 on the module housing 18 serve. Here is the servomotor 26 over the openings 26b with the module housing 18 screwed, the screws are not shown here.
  • For further attachment of the assembly unit 28 is a fastener 34 educated. This fastener 34 is here on the coolant lines 32a and 32b arranged, in particular fastened. The coolant lines 32a and 32b In this case, for example, can be designed as plastic or as aluminum parts, so that the fastening element 34 can be welded with this. The fastener 34 also has an opening 34a on, the attachment to the module housing 18 , here also by screw, enabled.
  • Furthermore, on the module housing 18 other fasteners 36 formed by openings 36a with the module housing 18 , in particular by screwing, are firmly connected, so that the coolant lines 32a , b between the fastener 36 and the module housing 18 are fixed. The fasteners surround 36 the coolant lines 32a , b on the side of the coolant lines 32a , b, the module housing 18 are opposite.
  • The assembly unit 28 is still on connecting sections 38 on the module housing 18 arranged and fixed, wherein the connecting portions 38 at one end of the coolant line 32a and 32b are educated. See also 4a , The connecting sections 38 are here at the the cooling element 40 opposite end portions of the coolant line 32a or 32b arranged. The connecting sections grip 38 in openings 18a of the module housing 18 one. The openings 18a of the module housing 18 serve as supply and discharge openings for a cooling medium from a first coolant circuit of the vehicle in a second coolant circuit, which is formed by the assembly unit. The second coolant circuit is in this case formed parallel to the first coolant circuit of the vehicle. The connecting sections 38 in this case have sealing elements 38a On top of that, a fluid-tight connection as well as a fixed arrangement between the coolant lines 32 as well as the openings 18a produce. Here are the openings 18a Connections of line dividers. These line dividers are here in the module housing 18 incorporated. The first cooling circuit may, for example, have a flow temperature of 65 to 85 degrees.
  • In the 6 and 7 is the assembly unit 28 shown individually. The assembly unit 28 here has the servomotor 26 on, over a spline 26c with the actuator 24 is connectable. In addition, the servomotor has 26 a flange 26a for attachment to the module housing 18 on. The flange 26 is here on a housing 26d of the servomotor 26 educated. At the of the spline 26c opposite end of the servomotor 26 is a cooling element 40 arranged. This cooling element 40 closes the actuator sealingly towards the outside.
  • It is within the cooling element 40 on the servomotor 26 an electronic control unit of the servomotor 26 arranged. This is done by the cooling element 40 protected on the one hand against contamination and on the other hand by the cooling element 40 cooled. In this case, the cooling element 40 at the side facing the control electronics form several surveys, which are in direct heat-conducting contact with individual components of the control electronics. In this case, advantageously, a thermal compound is used to the heat transfer from the control electronics to the cooling element 40 to improve. An upper operating temperature of the control electronics may be about 120 degrees Celsius. Increasing the temperature of the control electronics above this upper temperature limit, so the life decreases rapidly. A premature failure of the control electronics is thereby possible.
  • The cooling element 40 has substantially a uniform wall thickness, which is slightly curved, in particular spherical or spherical segment-shaped. It is cooling element 40 is attached to the servomotor, here by means of brackets 42 , In addition, on the cooling element 40 a coolant section 40a in the form of a construction 40a educated. The coolant section or the structure 40a is in this case in one piece by the cooling element 40 educated. In this case, the coolant section allows 40a a flow of coolant to remove the heat generated. A more accurate representation is especially in the 8th to 10 shown.
  • Thereby are in the structure 40a introduced several channels. This can be done for example by drilling. In this case, the structure 40a a coolant inlet 40b , a coolant outlet 40c and a coolant channel 40d on. The coolant inlet 40a , the coolant outlet 40b and the coolant channel 40d are executed here by simple holes. The coolant channel 40d is here on the one hand with a stopper 44 sealing closed. The cooling element 40 is here preferably formed as an aluminum part. Aluminum is easy to work with good thermal conductivity. The channels of the construction 40a can also form a more complex shape. Accordingly, the channels of the construction 40a be formed such that the cooling element 40 as evenly as possible and over a large area of a cooling medium flows through.
  • At the coolant inlet 40b and the coolant outlet 40c are neck 46 arranged. These nozzles are made of plastic or steel, for example, and are preferably in the coolant inlet 40b and the coolant outlet 40c pressed. The stopper 44 Can also be made of aluminum or plastic and in the cooling channel 40d be pressed.
  • The coolant lines 32a and 32b are here about elastic elements 48 with the coolant inlet 40b and the coolant outlet 40c , in particular via the neck 46 connected. Here are the elastic elements 48 here as connecting hoses 48 Made of an elastic material, so that these easily on the neck 46 as well as the coolant lines 32a and 32b can be deferred. Here are the nozzles 46 where the connection hose 48 is arranged, a radially expanded area. This is arranged substantially at its axial end, so that by a clamping element 50 , which outside of the connecting hose 48 arranged, the connection hose 48 is attached and slipping off the connecting hose 48 is prevented. Such a radially expanded area in conjunction with a clamping element 50 can also at an end region of the respective coolant line 32a be formed, in particular for secure and fluid-tight attachment of connecting hose 48 at the respective coolant line 32a , b. The clamping element 50 is here as a clamp 50 executed. Here is the use of elastic elements 48 is particularly advantageous because in this way the coolant lines 32a and 32b are isolated from powertrain vibrations and are difficult to excite vibrations.
  • The coolant lines 32a and 32b are preferably rigid, so that they are clearly arranged and routed to the module housing. The coolant lines 32a and 32b could be performed here, for example, as an aluminum part or as a plastic part.
  • Furthermore, on the coolant lines 32a and 32b a fastener 36 with an opening 36a arranged, leading to the attachment to the module housing 18 allows. In this case, the fastener 36 For example, stuck with the coolant lines 32a and 32b , in particular by welding, be connected.
  • The already mentioned in the previous connection sections 38 are in this case one-piece with the coolant lines 32a and 32b educated. Instead of the connecting sections 38 For example, an elastic element 48 be used according to the previous embodiments. Likewise, the connection of the coolant lines 32a , B to the cooling element by means of connecting portions according to the connecting portions 38 possible.
  • The connecting sections 38 the coolant lines 32a and 32b are still using an alignment element 52 arranged to each other. This alignment element 52 can, for example, as a sheet-metal element 52 or as a sheet metal part 52 be executed. The alignment element 52 serves as in 4 and 4a can be seen, among other things, the positioning of the connecting sections 38 to each other, so that a simple and quick installation is made possible on the module housing. The arrangement of the openings 18a on the housing 18 and the connecting sections 38 to each other is essentially the same.
  • The assembly unit 28 is completely pre-assembled. In addition, the mounting on the module housing is quick and easy.
  • In the 11 is another variant of the assembly unit 28 on the module housing 18 shown. In this case, the line splitters for dividing the coolant circuits are not through the module housing 18 educated. Instead, line dividers 54 on the module housing 18 fastened by means of fasteners, here screws. The line divider 54 is in the 12 and 13 shown again in two cross-sectional views. It is on the line divider 54 a seal 56 arranged, which is a fluid-tight connection with the motor housing 18 allows. It serves a nozzle 54a the supply or the removal of the cooling medium from the first coolant circuit in the second coolant circuit. A neck 54b allows in this case a bypass of the coolant to the cooling element 40 of the servomotor 26 , Here is the cross section of the nozzle 54 in comparison with the cross-section of the neck 54a less or less. The amount of coolant removed here from the first coolant circuit is essentially due to the cross-sectional ratio of the nozzle 54b with the neck 54a certainly. It can also be seen that the nozzles 54a and 54b Having areas with radial expansion at the end, so that the aforementioned clamping elements in the form of clamps can also be used. The coolant lines 32a and 32b are here with the line divider 54 over fasteners 48 connected. There is the possibility that the line splitters 54 at the assembly unit 28 can already be preassembled and only attached to the drive module, in particular screwed, must be.
  • In comparison with the solution known from the prior art, an operating temperature of the control electronics of the servomotor can be substantially reduced. In addition, a simple assembly, disassembly and repair is possible.
  • LIST OF REFERENCE NUMBERS
  • 10
    Electric drive unit
    12
    Electric machine
    14
    stator
    16
    rotor
    18
    module housing
    20
    driving element
    22
    clutch
    24
    actuator
    26
    servomotor
    26a
    flange
    26b
    openings
    26c
    splines
    26d
    casing
    27
    wave
    28
    assembly unit
    32a, b
    Coolant line
    32a
    Coolant supply line
    32b
    Coolant discharge line
    34
    fastener
    34a
    opening
    36
    fastener
    36a
    opening
    38
    connecting portion
    38a
    sealing element
    40
    cooling element
    40a
    Coolant section / body
    40b
    Coolant inlet
    40c
    coolant outlet
    40d
    Coolant channel
    42
    clip
    44
    Plug
    46
    Support
    46a
    radially expanded area
    48
    elastic element / connecting hose
    50
    clamping element
    52
    aligning
    54
    line sharing
    54a, b
    Support
    56
    poetry
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
  • Cited patent literature
    • EP 2708768 A2 [0002, 0005, 0046, 0046]
    • EP 2707868 A2 [0005]

Claims (10)

  1. Assembly unit ( 28 ) for an electric drive unit ( 10 ) within a drive train of a vehicle, comprising - a servomotor ( 26 ) for actuating a clutch ( 22 ) an electric drive unit ( 10 ), wherein • the servomotor ( 26 ) control electronics and a cooling element ( 40 ), wherein • the cooling element ( 40 ) serves the cooling of the control electronics and a coolant inlet ( 40b ) and a coolant outlet ( 40c ), which via one on the cooling element ( 40 ) formed coolant channel ( 40d ), and - coolant lines ( 32 ) in the form of a coolant supply line ( 32a ) and a coolant discharge line ( 32b ) for the supply and removal of coolant to the cooling element ( 40 ) corresponding to the coolant inlet ( 40b ) and the coolant outlet ( 40b ) of the cooling element ( 40 ) are connected.
  2. Assembly unit ( 28 ) according to claim 1, characterized in that the cooling element ( 40 ) on a housing ( 26d ) of the servomotor ( 26 ) is arranged and this closes tightly.
  3. Assembly unit ( 28 ) according to claim 1 or 2, characterized in that the cooling element ( 40 ) is in heat-conductive contact with the control electronics or with at least a portion of the individual components of the control electronics.
  4. Assembly unit ( 28 ) according to one of claims 1 to 3, characterized in that the cooling element ( 40 ) is formed as an aluminum part.
  5. Assembly unit ( 28 ) according to one of claims 1 to 4, characterized in that at the coolant inlet ( 40b ) and / or the coolant outlet ( 40b ) each a nozzle ( 46 ) for fixing the coolant lines ( 32 ) on the cooling element ( 40 ) is formed or arranged.
  6. Assembly unit ( 28 ) according to one of claims 1 to 5, characterized in that on a the cooling element ( 40 ) opposite end of the coolant line ( 32 ) a line divider ( 54 ) is arranged.
  7. Assembly unit ( 28 ) according to one of claims 1 to 6, characterized in that the respective coolant line ( 32 ) by means of an elastic element ( 48 ) with the line divider ( 54 ) and / or the cooling element ( 40 ) is firmly connected.
  8. Assembly unit ( 28 ) according to one of claims 1 to 7, characterized in that on at least one of the coolant lines ( 32 ) a fastener ( 36 ) is formed or arranged.
  9. Assembly unit ( 28 ) according to one of claims 1 to 8, characterized in that at one end of the coolant line ( 32 ) a connecting section ( 38 ) with a sealing element ( 38a ) is trained.
  10. Assembly unit ( 28 ) according to one of claims 1 to 9, characterized in that the coolant lines ( 21 ) or the connecting sections ( 38 ) of the coolant lines ( 32 ) by an alignment element ( 52 ) are aligned with each other.
DE102015220993.8A 2015-10-27 2015-10-27 Assembly unit for an electric drive unit within a drive train of a vehicle Pending DE102015220993A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102015220993.8A DE102015220993A1 (en) 2015-10-27 2015-10-27 Assembly unit for an electric drive unit within a drive train of a vehicle

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DE102015220993.8A DE102015220993A1 (en) 2015-10-27 2015-10-27 Assembly unit for an electric drive unit within a drive train of a vehicle
PCT/EP2016/072789 WO2017071892A1 (en) 2015-10-27 2016-09-26 Assembly unit for an electrical drive unit inside a drive train of a vehicle

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EP2708768A2 (en) 2012-09-18 2014-03-19 ZF Friedrichshafen AG Drive unit for a motor vehicle with an electrical machine and a coupling
EP2707868A1 (en) 2011-05-10 2014-03-19 Koninklijke Philips N.V. High dynamic range image signal generation and processing
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US20140239750A1 (en) * 2011-11-10 2014-08-28 Kabushiki Kaisha Yaskawa Denki Rotating electrical machine
WO2015078465A1 (en) * 2013-11-26 2015-06-04 Schaeffler Technologies AG & Co. KG Hybrid module and power electronics module with a common coolant flow

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DE10296733T5 (en) * 2001-12-27 2005-01-13 Aisin Aw Co., Ltd. Cooling device for electric motor control unit
DE112008001578T5 (en) * 2007-06-13 2010-04-29 Toyota Jidosha Kabushiki Kaisha, Toyota-shi Drive device and vehicle with such a drive device
DE102010047507A1 (en) * 2009-10-09 2011-06-16 GM Global Technology Operations LLC, ( n. d. Ges. d. Staates Delaware ), Detroit Oil cooled engine / generator for a motor vehicle powertrain
EP2707868A1 (en) 2011-05-10 2014-03-19 Koninklijke Philips N.V. High dynamic range image signal generation and processing
US20140239750A1 (en) * 2011-11-10 2014-08-28 Kabushiki Kaisha Yaskawa Denki Rotating electrical machine
EP2708768A2 (en) 2012-09-18 2014-03-19 ZF Friedrichshafen AG Drive unit for a motor vehicle with an electrical machine and a coupling
DE102012111962A1 (en) * 2012-12-07 2014-06-12 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Final drive unit for motor car, has housing assembly containing heat exchanger unit that is operatively connected to electric machine and gear unit
WO2015078465A1 (en) * 2013-11-26 2015-06-04 Schaeffler Technologies AG & Co. KG Hybrid module and power electronics module with a common coolant flow

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