WO2024104735A1 - Boîtier de machine pour un agencement de machine, procédé de fabrication d'un agencement de machine et agencement de machine pour un véhicule à moteur - Google Patents

Boîtier de machine pour un agencement de machine, procédé de fabrication d'un agencement de machine et agencement de machine pour un véhicule à moteur Download PDF

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Publication number
WO2024104735A1
WO2024104735A1 PCT/EP2023/079556 EP2023079556W WO2024104735A1 WO 2024104735 A1 WO2024104735 A1 WO 2024104735A1 EP 2023079556 W EP2023079556 W EP 2023079556W WO 2024104735 A1 WO2024104735 A1 WO 2024104735A1
Authority
WO
WIPO (PCT)
Prior art keywords
machine
machine housing
housing segment
electric
segment
Prior art date
Application number
PCT/EP2023/079556
Other languages
German (de)
English (en)
Inventor
Egon Pibinger
Mario PRANDSTOETTER
Original Assignee
Bayerische Motoren Werke Aktiengesellschaft
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 Bayerische Motoren Werke Aktiengesellschaft filed Critical Bayerische Motoren Werke Aktiengesellschaft
Publication of WO2024104735A1 publication Critical patent/WO2024104735A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/06—Cast metal casings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/15—Mounting arrangements for bearing-shields or end plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2410/00—Constructional features of vehicle sub-units
    • B60Y2410/10—Housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02034—Gearboxes combined or connected with electric machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02039—Gearboxes for particular applications
    • F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/006—Structural association of a motor or generator with the drive train of a motor vehicle

Definitions

  • the invention relates to a machine housing for a machine arrangement designed to drive a motor vehicle. Further aspects of the invention relate to a method for producing a machine arrangement and a motor vehicle with a machine arrangement.
  • Machine housings for drive machines or an arrangement for several drive machines, in short machine arrangement serve, among other things, to protect sensitive components from environmental influences and to guide coolant and/or lubricant.
  • WO 2021/099034 A1 discloses a modular electric axle drive for vehicles, a manufacturing method for such a modular axle drive and an assembly method of a modular axle drive in a vehicle.
  • a machine housing of an electric machine of the modular axle has a machine coolant channel.
  • a gear housing of a gear of the modular axle has at least one gear coolant channel.
  • An electronics housing of power electronics of the modular axle has at least one electronics coolant channel.
  • the machine housing is detachably mechanically connected to the gear housing on its drive side at the front in the axial direction.
  • the electronics housing is detachably mechanically connected to the gear housing and the machine housing.
  • the object of the present invention is to provide a machine housing which enables a simplified method for producing a machine arrangement with such a machine housing, as well as a motor vehicle with a corresponding machine arrangement.
  • the first machine housing segment comprises a first recess for inserting the first electric machine and the second machine housing segment, which is different from the first machine housing segment, comprises a second recess for receiving the second electric machine.
  • the first electric machine and the second electric machine can thus each be inserted independently of one another into the respective machine housing segment, wherein the machine housing segments can in particular be designed as different components of the machine housing.
  • This generally enables simplified manufacture of both the machine housing and the machine arrangement, since the individual machine housing segments can be provided, the respective electric machines can be inserted and the machine housing segments equipped with the respective electric machines can finally be joined together during manufacture of the machine housing and/or the machine arrangement.
  • the first machine housing segment and the second machine housing segment in the machine housing can be separated from one another by at least one gap.
  • the gap can be limited, in particular exclusively, by the first machine housing segment and the second machine housing segment.
  • the gap can be filled with a sealant at least in some areas, which enables targeted, needs-based sealing.
  • the first machine housing segment and the second machine housing segment can preferably be designed as different cast parts. This makes it possible to manufacture the respective machine housing segments with particularly low effort and with reliably reproducible quality.
  • the first machine housing segment and the second machine housing segment can be reversibly detachable, in other words non-destructively detachable, interconnected components of the machine housing. This enables a simple Replacing one of the machine housing segments, for example as part of maintenance work.
  • the first machine housing segment and the second machine housing segment can preferably be screwed together.
  • the first recess and additionally or alternatively the second recess can be designed as a hollow cylinder. This allows a particularly reliable, circumferential positional securing of the respective electric motor in the respective recess.
  • the invention is based on the knowledge that there are fundamental differences in the assembly procedure for machine housing assemblies, depending on whether the respective machine housing assembly is designed to support just one electric machine or several electric machines.
  • machine housing assemblies known from the prior art which are designed to accommodate two electric machines
  • one of the electric machines is usually first inserted into the corresponding recess, the housing part is rotated together with this electric machine, and then the second electric machine is inserted into the remaining recess.
  • the electric machine inserted first must be axially secured during rotation, for example held in place. After the electric motors have been inserted, it is usual to close the two corresponding recesses with another housing part of the machine housing assembly designed as a cover. The cover is usually used to close both recesses.
  • the proposed invention makes it possible, for example, to dispense with the axial securing of the first-mounted electric machine, which allows for simple assembly and thus a simplified method for producing a machine arrangement.
  • the first machine housing segment and the second machine housing segment overlap in at least two different spatial directions.
  • the machine housing segments can preferably overlap at least in a direction parallel to the respective center axis of the first recess and/or the second recess, whereby a particularly precise axial alignment of the electric machines to be accommodated or accommodated in the respective recesses is made possible.
  • first machine housing segment and the second machine housing segment are reversibly detachably connected to one another.
  • This is advantageous because, for example, one of the machine housing segments can be replaced during repair or maintenance work and the other machine housing segment can continue to be used, thereby saving resources.
  • the expression "reversibly detachably connected” is to be understood here to mean that the machine housing segments can be detachably connected to one another in a non-destructive manner, for example by being screwed together.
  • first machine housing segment and the second machine housing segment are designed as respective cast parts. This advantageously allows the machine housing segments to be manufactured with little effort and with high reproducibility.
  • cast parts have particularly good damping properties, whereby favorable acoustic properties of the machine arrangement can be achieved.
  • each of the machine housing segments has a bearing plate for the electric motor to be mounted in the other machine housing segment.
  • the respective machine housing segment has increased functionality and fewer individual parts have to be connected to one another during assembly.
  • the first machine housing segment can have a first bearing plate for the second electric motor to be mounted in the second machine housing segment, whereas the second machine housing segment can have a second bearing plate for the first electric motor to be mounted in the first machine housing segment.
  • the first machine housing segment has a first sealing surface area and the second Machine housing segment has a second sealing surface area which, when the machine housing segments are connected as intended, together form a circumferential sealing surface.
  • This is advantageous because the joint formation of the circumferential sealing surface offers a possibility for flush alignment of the machine housing segments relative to one another.
  • At least one of the machine housing segments has at least one gear housing part for receiving a gear shaft that can be driven by at least one of the electric motors.
  • the gear shaft can be designed as an intermediate gear shaft, for example.
  • the gear housing part can preferably be designed in the shape of a shell. In other words, the gear housing part can be designed as a gear housing shell. The design as such a shell is particularly advantageous because a receiving space for a gear can be created in a simple manner by covering the gear housing shell with another shell element (shell-shaped element).
  • a second aspect of the invention relates to a method for producing a machine arrangement with a machine housing according to the first aspect of the invention.
  • the method comprises at least the following steps:
  • This method makes it possible, for example, to omit the axial securing of the first-mounted electric machine during assembly of the subsequently mounted electric machine, which overall enables simple assembly and thus simplified production of the machine arrangement.
  • the first electric machine is inserted into the first machine housing segment along a first insertion direction and the second electric machine is inserted into the second machine housing segment along a second insertion direction that is oriented at least substantially in the same direction as the first insertion direction.
  • first insertion direction and the second insertion direction can preferably be oriented parallel to one another.
  • first insertion direction and the second insertion direction enclose an angle of less than 45°, preferably less than 15° and particularly preferably less than 5° with one another.
  • a third aspect of the invention relates to a motor vehicle with a machine arrangement which is manufactured according to a method according to the second aspect of the invention and/or has a machine housing according to the first aspect of the invention.
  • Such a motor vehicle can be manufactured with particularly little effort.
  • Fig. 1 is a schematic perspective view of a machine housing assembly known from the prior art
  • Fig. 2 is a schematic perspective view of a first machine housing segment of a machine housing for a variant of a machine arrangement
  • Fig. 3 is a schematic perspective view of a second machine housing segment of the machine housing of the variant of the machine arrangement
  • Fig. 4 is a schematic perspective view of the machine housing
  • Fig. 5 is a schematic plan view of the first machine housing segment and the second machine housing segment, wherein both machine housing segments are oriented to one another such that a first electric machine of the machine arrangement can be inserted into a first recess of the first machine housing segment along a first insertion direction and a second electric machine of the machine arrangement can be inserted into a second recess of the second machine housing segment along a second insertion direction oriented parallel to the first insertion direction;
  • Fig. 6 is a further schematic plan view of the machine housing segments, wherein the second machine housing segment together with the second electric machine introduced into the second recess is mounted relative to the first machine housing segment in a method for producing the machine arrangement with the machine housing. machine housing segment and the first electric machine inserted into the first recess; and
  • Fig. 7 is a schematic plan view of the machine arrangement.
  • Fig. 1 shows an example of a machine housing assembly 110 known from the prior art, in which two electrical machines (not shown in more detail), hereinafter abbreviated to E-machines, are accommodated. Both E-machines are arranged in recesses 114, 116 arranged next to one another in a single, first housing part 112 of the machine housing assembly 110.
  • the recesses 114, 116 are designed as cylindrical bores and are therefore, as can be seen in Fig. 1, delimited by correspondingly cylindrical housing walls.
  • one of the E-machines is usually first inserted into the corresponding recess 114, 116, the housing part 112 is rotated together with this E-machine and then the second E-machine is inserted into the remaining one of the recesses 114, 116.
  • the electric machine that is inserted first must be axially secured during rotation, for example held in place.
  • Fig. 2 shows a schematic perspective view of a first machine housing segment 20
  • Fig. 3 shows a schematic perspective view of a second machine housing segment 40 for a machine housing 10 shown in Fig. 4.
  • the first machine housing segment 20 and the second machine housing segment 40 are in the present case designed as respective, in particular metallic, cast parts.
  • the first machine housing segment 20 has a first recess 22 for introducing a first electric machine 80, which is only shown schematically in Fig. 5.
  • the second machine housing segment 40 which is different from the first machine housing segment 20, has a second recess 42 for receiving a second electric machine 90, which is also shown schematically in Fig. 5.
  • the two electric machines 80, 90 can also be referred to as electric drive machines.
  • the electric machines 80, 90 serve to Driving a motor vehicle K, which is shown in highly abstracted form in Fig. 7 for reasons of clarity.
  • the machine housing 10 having the two machine housing segments 20, 40 which is shown in Fig. 4 in a schematic perspective view, is part of a machine arrangement 100 serving as the drive unit of the motor vehicle K in Fig. 7.
  • the machine arrangement 100 therefore comprises at least the machine housing 10 and additionally the electric machines 80, 90 arranged in the respective machine housing segments 20, 40 or in their recesses 32, 42.
  • a combination of Fig. 2, Fig. 3 and Fig. 4 shows that the first machine housing segment 20 and the second machine housing segment 40 in the machine housing 10 shown in Fig. 4 overlap in at least two different spatial directions x, y, i.e. a first spatial direction x and a second spatial direction y, which together span a plane.
  • the first machine housing segment 20 and the second machine housing segment 40 are screwed together and thus reversibly detachably connected to one another.
  • Fig. 2, Fig. 3 and Fig. 5 illustrate that the first machine housing segment 20 has a first bearing plate 24 for the electric machine 90 to be mounted in the second machine housing segment 40.
  • the second machine housing segment 40 has a second bearing plate 44 for the electric machine 80 to be mounted in the first machine housing segment 20.
  • the first bearing plate 24 is used to mount a rotor shaft of the second electric machine 90 (not shown in more detail here) and also protects the second electric machine 90 from environmental influences.
  • the second bearing plate 44 is used to mount a (second) rotor shaft of the first electric machine 80 (also not shown in more detail here) and accordingly protects the first electric machine 80 from environmental influences.
  • first machine housing segment 20 has a first sealing surface region 26 and the second machine housing segment 40 has a second sealing surface region 46, which, when the machine housing segments 20, 40 are connected as intended to form the machine housing 10, together form a circumferential sealing surface 12, which are only separated from one another at corresponding separation points of the machine housing segments 20, 40 by a first gap 14 and a second gap 16.
  • Fig. 2, Fig. 3 and Fig. 5 also show that the first machine housing segment 20 has a first gear housing part 28 and the second machine housing segment 40 has a (second) gear housing part 48.
  • the respective gear housing parts 28, 48 serve to accommodate a gear shaft that can be driven by the respective electric machines 80, 90, which is not shown in more detail here.
  • the machine assembly 100 is manufactured according to a method which is described below with reference to Fig. 5 and Fig. 6 and comprises at least the following steps:
  • the first machine housing segment 20, the second machine housing segment 40, the first electric machine 80 and the second electric machine 90 are provided.
  • the first electric machine 80 is inserted into the first machine housing segment 20, thereby producing a first electric machine-machine housing segment assembly 30.
  • the second electric machine 90 is inserted into the second machine housing segment 40, thereby producing a second electric machine-machine housing segment assembly 50.
  • the first electric machine 80 is inserted into the first machine housing segment 20 along a first insertion direction E1
  • the second electric machine 90 is inserted into the second machine housing segment 40 along a second insertion direction E2 that is oriented in the same direction and thus parallel to the first insertion direction E1.
  • the first electric machine-machine housing segment assembly 30 and the second electric machine-machine housing segment assembly 50 are shown schematically in Fig. 5, wherein the electric machines 80, 90 inserted into the respective recesses 22, 42 can be seen and protrude slightly from the respective recesses 22, 42.
  • a rotation 60 takes place, which is illustrated in Fig. 5 and Fig. 6 by a curved arrow.
  • this rotation 60 one of the electric machine-machine housing segment assemblies 30, 50 is rotated relative to the other electric machine-machine housing segment assembly 50, 30.
  • the second electric machine housing segment assembly 50 is rotated relative to the first electric machine housing segment assembly 30.
  • the gaps 14, 16 can be filled with a sealant and thus closed. This allows the circumferential sealing surface 12 to be closed.
  • another vehicle component can be brought up to the sealing surface 12 and a sealing element can be arranged and/or clamped between the sealing surface 12 and this vehicle component, for example to prevent dirt from the environment from penetrating or lubricant from escaping between the sealing surface 12 and the component.
  • the invention makes it possible for the two electric machines 80, 90 to be introduced into the two different machine housing segments 20, 40, which have respective bearing plates 24, 44, instead of being introduced into the respective recesses 114, 116 of the one-piece first housing part 112 known from the prior art.
  • the bearing plates 24, 44 lie opposite one another, preferably along a central axis (rotation axis) of a rotor of at least one of the electric machines 80, 90.
  • the invention can overcome at least the following problem known from the prior art, according to which, during assembly of systems known from the art, after the electric motors have been joined into a housing, at least one of the electric motors must always be held in place before such an arrangement is turned over for further assembly work, since at this point in time only one of the electric motors is axially secured.
  • the respective switching rings assigned to the electric machines can be larger in terms of their outer diameter than the respective inner diameters of the recesses 22, 42, which allows for greater design freedom, since the rotation 60 and the joining of the electric machine Machine housing segment assembly 30, 50 in the present invention only takes place after the assembly of the electric machines 80, 90 in their respective recesses 22, 42.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

L'invention concerne un boîtier de machine (10) pour un agencement de machine (100) conçu pour entraîner un véhicule à moteur (K), qui est conçu pour recevoir une première machine électrique (80) et au moins une seconde machine électrique (90) et a un premier segment de boîtier de machine (20) et au moins un second segment de boîtier de machine (40). Le premier segment de boîtier de machine (20) comprend un premier évidement (22) pour insérer la première machine électrique (80) et le second segment de boîtier de machine (40), qui est différent du premier segment de boîtier de machine (20), comprend un second évidement (42) pour recevoir la seconde machine électrique (90).
PCT/EP2023/079556 2022-11-18 2023-10-24 Boîtier de machine pour un agencement de machine, procédé de fabrication d'un agencement de machine et agencement de machine pour un véhicule à moteur WO2024104735A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022130545.7 2022-11-18
DE102022130545.7A DE102022130545A1 (de) 2022-11-18 2022-11-18 Maschinengehäuse für eine Maschinenanordnung, Verfahren zur Herstellung einer Maschinenanordnung und Maschinenanordnung für ein Kraftfahrzeug

Publications (1)

Publication Number Publication Date
WO2024104735A1 true WO2024104735A1 (fr) 2024-05-23

Family

ID=88585346

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/079556 WO2024104735A1 (fr) 2022-11-18 2023-10-24 Boîtier de machine pour un agencement de machine, procédé de fabrication d'un agencement de machine et agencement de machine pour un véhicule à moteur

Country Status (2)

Country Link
DE (1) DE102022130545A1 (fr)
WO (1) WO2024104735A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160039277A1 (en) * 2013-03-15 2016-02-11 Adrian Quintana Hybrid Axle Assembly For A Motor Vehicle
DE212017000137U1 (de) * 2016-06-08 2019-01-22 Punch Powertrain N.V. Elektroantriebsstrang, Getriebe und Fahrzeug
WO2021099034A1 (fr) 2019-11-20 2021-05-27 Robert Bosch Gmbh Essieu moteur électrique modulaire

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015207628A1 (de) 2015-04-27 2016-10-27 Zf Friedrichshafen Ag Gehäuse für eine Zwillingsanordnung von Elektromaschinen und Zwei-Motorenantrieb
WO2019118866A1 (fr) 2017-12-15 2019-06-20 Rivian Ip Holdings, Llc Unités d'entraînement de véhicule électrique
DE102020128933A1 (de) 2020-11-03 2022-05-05 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verfahren zur Montage einer Antriebseinheit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160039277A1 (en) * 2013-03-15 2016-02-11 Adrian Quintana Hybrid Axle Assembly For A Motor Vehicle
DE212017000137U1 (de) * 2016-06-08 2019-01-22 Punch Powertrain N.V. Elektroantriebsstrang, Getriebe und Fahrzeug
WO2021099034A1 (fr) 2019-11-20 2021-05-27 Robert Bosch Gmbh Essieu moteur électrique modulaire

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Publication number Publication date
DE102022130545A1 (de) 2024-05-23

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