DE102024111398A1 - Assembly for producing a door drive device for adjusting a vehicle door relative to a vehicle body - Google Patents

Abstract

An assembly for producing a door drive device (2) for adjusting a vehicle door (11) relative to a vehicle body (10) comprises an adjusting part (21) for transmitting force between the vehicle door (11) and the vehicle body (10), a drive motor (22) having a motor housing (222), a gear assembly for coupling the drive motor (22) to the adjusting part (21), and a gear housing (24). A connecting device (28) is designed to connect the gear housing (24) and the motor housing (222) to one another, wherein the connecting device (28) has at least one engagement section (281; 281';281'',281''',281'''') formed on one of the gear housing (24) and the motor housing (222) and at least one engagement element (282, 283; 282';282'',282''',282'''') formed on the other of the gear housing (24) and the motor housing (222), which can be brought into engagement with one another to establish a connection between the gear housing (24) and the motor housing (222).

Description

The invention relates to an assembly for producing a door drive device for adjusting a vehicle door relative to a vehicle body according to the preamble of claim 1, a door drive device for adjusting a vehicle door relative to a vehicle body, a vehicle assembly and a method for producing a door drive device.

Such an assembly for producing a door drive device comprises an adjusting part for transmitting power between the vehicle door and the vehicle body, a drive motor, a gear assembly for coupling the drive motor to the adjusting part and a gear housing.

One in the WO 2021/023893 A1 The door drive device described has an adjusting part in the manner of a retaining strap, which is pivotally connected to a vehicle body and can be adjusted via a door drive device on the side of the vehicle door in order to move the vehicle door relative to the vehicle body. The door drive device has a gear assembly in the form of a spindle gear, which has a rotatable spindle that is threadably engaged with a spindle nut portion of a sliding element such that by rotating the spindle, the sliding element can be adjusted longitudinally on a guide rail in order to move the adjusting part to adjust the vehicle door.

In such a door drive device, the drive motor can be arranged, for example, on the side of the vehicle door. The adjustment part is coupled to the vehicle body in a normal operating position and is also operatively connected to the drive motor in such a way that the adjustment part is adjusted via the drive motor, thereby generating a force between the vehicle door and the vehicle body for the electric motor-driven adjustment of the vehicle door relative to the vehicle body. Because, for example, the installation space in the vehicle door is limited, such a door drive device should be designed to save space, so that the door drive device requires only a comparatively small installation space, for example, in a vehicle door.

By means of such a door drive device, for example, an automatic electromotive adjustment of the vehicle door can be enabled in automatic mode or a motor-assisted, manual adjustment of the vehicle door can be enabled in servo mode.

To manufacture a door drive device, the components of the door drive device must be joined together. In this context, the motor housing, made of metal, for example, must be connected to the gear housing in such a way that a drive element mounted on a motor shaft is operatively connected to an associated attachment component of the gear assembly, thus creating a power transmission line between the drive motor via the gear assembly to the adjustment part.

Typically, the motor housing is bolted to the gearbox housing, for example. However, this can be complex to assemble and requires separate components for the bolted connection. Furthermore, it can impose restrictions on the arrangement and orientation of the drive motor relative to the gearbox assembly.

The object of the present invention is to provide an assembly for producing a door drive device, a door drive device, a vehicle assembly and a method for producing a door drive device, which enable simple assembly and thus cost-effective manufacture of the door drive device.

This object is achieved by an article having the features of claim 1.

Accordingly, the assembly comprises a connecting device configured to connect the transmission housing and the motor housing to one another. The connecting device comprises at least one engagement portion formed on one of the transmission housing and the motor housing and at least one engagement element formed on the other of the transmission housing and the motor housing, which can be engaged with one another to establish a connection between the transmission housing and the motor housing.

The gear housing, which at least partially encloses the gear assembly, is to be connected to the motor housing of the drive motor to manufacture the door drive device. To enable simple assembly and manufacture of the door drive device, the connecting device, which serves to connect the gear housing to the motor housing, is designed with one or more engagement sections and one or more engagement elements, which are arranged on the one hand on the gear housing and on the other hand on the motor housing, thus enabling the gear housing to be connected to the drive motor without additional components.

In particular, additional fastening elements such as screws or rivets, which would have to be attached as separate elements to the gear housing or motor housing to establish a connection between the gear housing and the motor housing, can be dispensed with. Instead, one or more engagement sections and one or more engagement elements are formed on the motor housing and the gear housing and can be engaged with one another to establish a connection between the gear housing and the motor housing during assembly of the door drive device.

The at least one engagement section and the at least one engagement element can preferably be brought into engagement with one another in such a way that a positive or non-positive connection is created between the transmission housing and the motor housing. The transmission housing and the motor housing can thus be secured to one another in a positive or non-positive manner via the connecting device.

Because the at least one engagement section is formed on the transmission housing or the motor housing, the engagement section is fixedly arranged on the transmission housing or the motor housing. Likewise, the at least one engagement element is fixedly arranged on the motor housing or the transmission housing because it is formed on the other of the transmission housing and the motor housing. The transmission housing and the motor housing can each be designed as a single piece or in multiple pieces. In any case, the engagement section and the engagement element are fixedly formed on an associated housing part of the transmission housing or the motor housing.

In one embodiment, the at least one engagement portion is formed integrally on one of the transmission housing and the motor housing. Additionally or alternatively, the at least one engagement element is formed integrally on the other of the transmission housing and the motor housing. For example, the transmission housing and the motor housing can each be formed integrally, with the at least one engagement portion and the at least one engagement element being formed integrally and integrally on the respectively associated housing part.

In one embodiment, the connecting device permanently connects the gear housing and the motor housing in an assembled position. To assemble the door drive device, the gear housing and the motor housing can be placed against one another and connected via the connecting device. If the connection is established by engagement of the at least one engagement element with the at least one engagement section, the connection between the gear housing and the motor housing is permanently connected.

In this context, a non-detachable connection is understood to mean that the connection between the gearbox housing and the motor housing cannot be released without destruction, i.e. in particular not without destruction of components of the connecting device, i.e. of the at least one engagement section and/or the at least one engagement element.

In one embodiment, the at least one engagement element has an initial shape in a pre-assembly position and is plastically deformable to establish the connection between the gear housing and the motor housing. The gear housing and the motor housing can be attached to one another for assembly of the door drive device. The at least one engagement element is initially in its undeformed initial shape, which enables the gear housing and the motor housing to be attached to one another. Once the gear housing and the motor housing have been attached to one another, the at least one engagement element can be plastically deformed to bring the at least one engagement element into engagement with the at least one engagement section and thus establish a permanent connection between the motor housing and the gear housing. Due to the plastic deformation, the engagement of the at least one engagement element with the at least one engagement section cannot be easily released, but can generally only be removed by destroying the connecting device.

Such plastic deformation of the at least one engagement element can be achieved, for example, by cold forming or hot forming. For example, an engagement element on the motor housing, which may be made of metal, can be deformed by cold forming. In contrast, the transmission housing can be formed from plastic, for example, whereby an engagement element of the transmission housing can be achieved, for example, by hot forming and thus by partially melting the at least one engagement element.

In one embodiment, the at least one engagement element and the at least one engagement section are designed to establish a bayonet connection for connecting the gear housing and the motor housing. In such an embodiment, the connection between The connection between the gearbox housing and the motor housing is generally releasable by removing the bayonet connection. Within the scope of such a bayonet connection, the at least one engagement element and the at least one engagement section can be brought into engagement with one another by placing the gearbox housing and the motor housing against one another, and then the bayonet connection can be established by rotating the gearbox housing and the motor housing relative to one another by a certain angle of rotation.

In one embodiment, the drive motor has a motor shaft rotatable about a longitudinal axis. A drive element, such as a drive worm, can be arranged on the motor shaft, which engages with a drive gear of the gear assembly when the door drive device is mounted and thus in a normal operating state. The motor housing can, for example, be cylindrically shaped with respect to the longitudinal axis. For example, the motor housing is designed as a cylindrical metal part, in particular tubular.

In one embodiment, the connecting device has an attachment section arranged on the transmission housing, to which the motor housing can be attached along the longitudinal axis. The attachment section can, for example, be cylindrically shaped with respect to the longitudinal axis. The attachment section thus enables, in particular, the attachment of a cylindrical motor housing. To connect the transmission housing to the motor housing, the transmission housing and the motor housing can be joined together, for example, along the longitudinal axis such that the motor housing comes into contact with the attachment section on the transmission housing.

In one embodiment, the at least one engagement element or the at least one engagement section is formed integrally with the attachment section. At least one engagement element and/or at least one engagement section are thus arranged on the attachment section, so that a connection to the motor housing can be established via the attachment section.

In one embodiment, the connecting device has a plurality of engagement sections arranged in a row around the longitudinal axis and/or a plurality of engagement elements arranged in a row around the longitudinal axis. For example, a plurality of engagement elements can be arranged on the transmission housing or the motor housing, while one or more engagement sections are arranged on the other of the transmission housing and the motor housing. In another embodiment, one or more engagement elements are arranged on the transmission housing or the motor housing, and a plurality of engagement sections are arranged on the other of the transmission housing and the motor housing. For example, a plurality of engagement elements are arranged on one of the transmission housing and the motor housing, and a plurality of engagement sections are formed on the other of the transmission housing and the motor housing. The plurality of engagement elements or the plurality of engagement sections can be arranged at regular intervals from one another along a circumferential direction around the longitudinal axis. Such an arrangement of multiple engagement elements and/or multiple engagement sections can, for example, enable the transmission housing and the motor housing to be attached to and connected to one another in a plurality of positions angularly rotated relative to one another about the longitudinal axis. The motor housing can thus be aligned relative to the transmission housing by selecting a desired angular position, allowing installation space constraints to be taken into account to create a space-efficient arrangement of the door drive device.

By selecting the angular position of the motor housing relative to the gear housing, in particular a plug outlet direction along which a plug connector for the electrical supply of the drive motor extends can be freely selected within predetermined limits.

In one embodiment, the at least one engagement element is formed by a plastically deformable tab on the motor housing. The at least one engagement element can, for example, be freely punched as a tab on the motor housing, which can be made of metal, for example. One or more tabs can be formed on the motor housing in order to be brought into engagement with one or more associated engagement sections on the transmission housing by plastic deformation, for example by cold forming, for example by bending.

If the at least one engagement element is formed by a plastically deformable tab on the motor housing, the at least one engagement section can be formed, for example, by a recess on the transmission housing. Such a recess can be formed as a depression or (through) opening on the transmission housing. In the undeformed state of the engagement element, the transmission housing and the motor housing can be attached to one another for assembly. Once the transmission housing and the motor housing have been attached to one another, the at least one engagement element can be plastically deformed in such a way that that the at least one engagement element engages with the at least one engagement section, the tab thus extends into the recess and in this way creates a positive or non-positive connection between the transmission housing and the motor housing.

In one embodiment, the at least one engagement element is formed by a radially protruding projection element on the gear housing. Such a radially protruding projection element can, for example, be formed on the cylindrical attachment section and protrude radially outward from the cylindrical attachment section. Via such a radial projection element, a bayonet connection can be established between the gear housing and the motor housing, for example, by engaging in a bayonet opening formed on the motor housing. The bayonet opening forms the at least one engagement section on the motor housing and is designed such that the radial projection element can be inserted into the bayonet opening and locked relative to one another by rotating the gear housing and the motor housing about the longitudinal axis of the drive motor, thus establishing a bayonet connection between the gear housing and the motor housing.

In one embodiment, the at least one engagement element is formed by at least one plastically deformable element on the transmission housing. Such a plastically deformable element can be formed, for example, by a circumferential edge section of the attachment section. In another embodiment, the at least one plastically deformable element can be formed by a claw element protruding axially along the longitudinal axis from the attachment section. In this case, the at least one engagement section can be formed, for example, by a radially protruding collar or a groove on the motor housing. By plastically deforming the at least one engagement element, an engagement can be established between the at least one engagement element and the at least one engagement section, such that a positive or non-positive connection is established between the transmission housing and the motor housing.

The collar or groove can, for example, be rotationally symmetrical, i.e., circumferentially around the longitudinal axis, on the motor housing. In the assembled position, after plastic deformation, at least one engagement element of the gearbox housing engages behind the collar or into the groove, thus establishing the connection between the gearbox housing and the motor housing. The rotationally symmetrical shape of the collar or groove allows the motor housing to be attached to the gearbox housing at any angular position.

By selecting the angular position of the motor housing relative to the gear housing, in particular a plug outlet direction, along which a plug connector for the electrical supply of the drive motor extends, can be set in the desired manner.

If the at least one engagement element is formed as a plastically deformable element on the transmission housing, a plastic deformation of the at least one engagement element can be carried out, for example, by hot forming, for example by using a hot stamping tool shaped and formed for this purpose.

If the at least one engagement section is formed by a radially protruding collar or a groove on the motor housing, the at least one engagement element engages radially inward behind the collar or into the groove after plastic deformation. The plastic deformation, for example, by hot forming, thus softens or melts the material of the at least one engagement element to create an engagement with an undercut formed by the at least one engagement section.

In one embodiment, the at least one engagement element is formed by at least one plastically deformable pin element on the transmission housing or the motor housing. The pin element preferably extends longitudinally along the longitudinal axis. In this case, the at least one engagement section is preferably formed by at least one opening on the other of the transmission housing and the motor housing such that the at least one pin element can engage with the at least one opening and then be plastically deformed to establish the connection between the transmission housing and the motor housing. The transmission housing and the motor housing can thus be placed against one another along the longitudinal axis of the drive motor, wherein the at least one pin element engages with the at least one opening. The connection between the transmission housing and the motor housing can then be fixed by plastic deformation of the at least one pin element.

Using the assembly of the type described above, a door drive device for adjusting a vehicle door relative to a vehicle body can be manufactured. Such a door drive device comprises an adjusting part for transmitting force between the vehicle door and the vehicle body, a drive motor with a motor housing, a gear assembly for coupling the drive motor to the adjustment part, and a gear housing. The door drive device comprises a connecting device that connects the gear housing and the motor housing to one another, wherein the connecting device has at least one engagement portion formed on one of the gear housing and the motor housing and at least one engagement element formed on the other of the gear housing and the motor housing, which engage with one another to establish a connection between the gear housing and the motor housing.

The advantages and advantageous configurations described above for the assembly also apply analogously to the door drive device. The door drive device is manufactured using the assembly.

The door drive device has an adjusting part that can be adjusted by an electric drive motor to create an adjusting force between the vehicle door and the vehicle body. The adjusting part is connected, for example, to the vehicle body on one side and to a gear element of the gear assembly on the other, so that by adjusting the adjusting part, the angular position of the vehicle door relative to the vehicle body can be changed, thus pivoting the vehicle door relative to the vehicle body.

The door drive device can be designed, in particular, for automatic, electric-motor adjustment of the vehicle door between a closed and a fully or partially open position. Additionally or alternatively, the door drive device can be configured to provide electric-motor support for manual adjustment of the vehicle door by a user in servo mode, so that a user must exert a substantially constant (low) adjustment force over the entire adjustment range of the vehicle door, and any additional force required is applied by the drive motor of the door drive device.

In one embodiment, the door drive device comprises a guide rail connected to the gear housing and a sliding element guided longitudinally along the guide rail in an adjustment direction, adjustable by the gear assembly, and coupled to the adjustment part. The adjustment of the adjustment part is achieved by a drive motor moving a sliding element along a guide rail via a gear assembly in order to introduce an adjustment force into the adjustment part via the sliding element. The guide rail extends longitudinally along an adjustment direction. The sliding element is guided along the guide rail along the adjustment direction and is thus movable along the guide rail in the adjustment direction.

In one embodiment, the adjustment part is pivotally connected to the sliding element at a first end and pivotally connected to the vehicle body at a second end remote from the first end. The adjustment part thus establishes an operative connection between the vehicle body and the door drive device arranged on the vehicle door, so that movement between the vehicle door and the vehicle body can be effected by adjusting the adjustment part on the door drive device.

In one embodiment, the sliding element comprises a structural part and a sliding section arranged on the structural part for sliding engagement with the guide rail. The structural part serves to provide a rigid structure for the sliding element. The sliding section formed on the structural part, in contrast, serves to improve the sliding properties of the sliding element for sliding in the guide rail.

In one embodiment, the gear assembly comprises a spindle that can be rotated about a rotational axis and driven by the drive motor. The sliding element is threadedly connected to the spindle, so that by rotating the spindle, the sliding element can be moved longitudinally along the adjustment direction. The spindle, for example, has an external thread that engages with an internal thread formed on the sliding element, so that when the spindle is rotated, the sliding element rolls along the spindle and is thus adjusted longitudinally relative to the spindle.

In one embodiment, the sliding element has a spindle nut portion with a threaded opening formed therein, in which an internal thread is formed for establishing a threaded connection with the spindle. The spindle engages in the threaded opening and is thereby coupled to the spindle nut portion, so that by rotating the spindle, the sliding element can be adjusted axially along the spindle, thereby moving the adjusting part for adjusting the vehicle door.

In one embodiment, the door drive device uses a gear assembly similar to a spindle drive, through which adjustment forces can be introduced into the adjustment part for adjusting the vehicle door. Such a spindle drive can be constructed simply with just a few components and enables reliable and resilient power transmission.

The spindle nut section of the sliding element is formed integrally and in one piece with the sliding section, for example, by injection molding in an injection mold. During injection molding, the threaded opening with the internal thread formed therein is also formed integrally.

In one embodiment, the gear assembly comprises a gear wheel mounted on the gear housing for transmitting power from the drive motor to the spindle. The gear wheel can be designed, for example, as a spur gear and mounted on the spindle in a rotationally fixed manner. The drive motor can, for example, have a drive shaft and a drive worm arranged on the drive shaft, which meshes with the gear wheel, so that a rotational movement of the shaft is converted into a (reduced) rotational movement of the gear wheel.

A door drive device of the described type can be used as a door drive on a vehicle side door, rear door, or even on a tailgate. A door drive device of the described type can also be used, for example, to adjust a hood or a so-called frunk (i.e., a flap in the front cargo area of a vehicle), which are also to be understood as vehicle doors in the context of this text.

Accordingly, a vehicle assembly may comprise a vehicle door pivotably mounted on a vehicle body and a door drive device of the type described above for adjusting the vehicle door relative to the vehicle body.

A method for manufacturing the door drive device using an assembly of the type described comprises: connecting the gear housing and the motor housing via the connecting device, wherein the connecting device has at least one engagement portion formed on one of the gear housing and the motor housing and at least one engagement element formed on the other of the gear housing and the motor housing, which are brought into engagement with each other to establish a connection between the gear housing and the motor housing.

The advantages and advantageous embodiments described above for the assembly and the door drive device also apply analogously to the method.

• 1 eine schematische Ansicht einer Fahrzeugtür an einer Fahrzeugkarosserie, mit einem gelenkig an der Fahrzeugkarosserie angeordneten, bei einem Verschwenken der Fahrzeugtür relativ zu der Fahrzeugtür bewegten Verstellteil in Form eines Schubelements;
• 2 eine Ansicht eines Ausführungsbeispiels einer Türantriebsvorrichtung zum Verstellen einer Fahrzeugtür;
• 3 eine Explosionsansicht der Türantriebsvorrichtung;
• 4 eine weitere Ansicht der Türantriebsvorrichtung, von der Seite;
• 5 eine Ansicht der Türantriebsvorrichtung, von oben;
• 6 eine stirnseitige Ansicht der Türantriebsvorrichtung;
• 7 die Ansicht gemäß 4, jedoch bei ausgefahrenem Verstellteil;
• 8 die Ansicht gemäß 5, bei ausgefahrenem Verstellteil;
• 9 die Ansicht gemäß 6, bei ausgefahrenem Verstellteil;
• 10 eine teilweise geschnittene Ansicht der Türantriebsvorrichtung, bei eingefahrenem Verstellteil;
• 11 die Ansicht gemäß 10, jedoch bei ausgefahrenem Verstellteil;
• 12 eine Ansicht eines Ausführungsbeispiels einer Baugruppe einer Türantriebsvorrichtung, mit einer Verbindungseinrichtung zum Verbinden eines Getriebegehäuses mit einem Motorgehäuse;
• 13 eine Ansicht der Anordnung gemäß 12, in einer Montagestellung;
• 14 eine Ansicht der Anordnung gemäß 12, in einer anderen Montagestellung;
• 15 eine Ansicht der Anordnung gemäß 12, in einer wiederum anderen Montagestellung;
• 16 eine Ansicht eines weiteren Ausführungsbeispiels einer Baugruppe einer Türantriebsvorrichtung mit einer Verbindungseinrichtung;
• 17 eine Ansicht der Anordnung gemäß 16 in einer Montagestellung;
• 18 eine Ansicht der Anordnung gemäß 16, in einer anderen Montagestellung;
• 19 eine Ansicht der Anordnung gemäß 16, in einer wiederum anderen Montagestellung;
• 20 eine Explosionsansicht eines weiteren Ausführungsbeispiels einer Baugruppe einer Türantriebsvorrichtung mit einer Verbindungseinrichtung zum Verbinden eines Getriebegehäuses mit einem Motorgehäuse;
• 21 eine Teilschnittansicht der Türantriebsvorrichtung, bei geschnittenem Antriebsmotor;
• 22 eine ausschnittsweise vergrößerte Darstellung der Ansicht gemäß 21;
• 23 eine Ansicht eines weiteren Ausführungsbeispiels einer Baugruppe einer Türantriebsvorrichtung mit einer Verbindungseinrichtung;
• 24 eine Ansicht der Anordnung gemäß 23, bei der Montage;
• 25 eine Ansicht der Anordnung gemäß 23 und 24, in einer Montagestellung;
• 26 eine Ansicht eines wiederum anderen Ausführungsbeispiels einer Baugruppe einer Türantriebsvorrichtung;
• 27 eine Ansicht der Anordnung gemäß 26, in einer Montagestellung;
• 28 eine Draufsicht auf die Anordnung gemäß 27, in einer ersten Montagestellung;
• 29 eine Draufsicht auf die Anordnung gemäß 27, in einer zweiten Montagestellung bei verdrehtem Motorgehäuse;
• 30 eine Ansicht eines wiederum anderen Ausführungsbeispiels einer Baugruppe einer Türantriebsvorrichtung mit einer Verbindungseinrichtung zum Verbinden eines Getriebegehäuses mit einem Motorgehäuse;
• 31 eine Ansicht der Anordnung gemäß 30, bei der Montage;
• 32 eine Ansicht der Anordnung gemäß 30, in einer Montagestellung;
• 33 eine Ansicht eines wiederum anderen Ausführungsbeispiels einer Baugruppe einer Türantriebsvorrichtung mit einer Verbindungseinrichtung;
• 34 eine Ansicht der Anordnung gemäß 33, bei der Montage; und
• 35 eine Ansicht der Anordnung gemäß 33, in einer Montagestellung.

The concept underlying the invention will be explained in more detail below with reference to the exemplary embodiments illustrated in the figures. They show:

• 1 a schematic view of a vehicle door on a vehicle body, with an adjusting part in the form of a sliding element which is arranged in an articulated manner on the vehicle body and moves relative to the vehicle door when the vehicle door is pivoted;
• 2 a view of an embodiment of a door drive device for adjusting a vehicle door;
• 3 an exploded view of the door drive device;
• 4 another view of the door drive device, from the side;
• 5 a view of the door drive device, from above;
• 6 a front view of the door drive device;
• 7 the view according to 4 , but with the adjustment part extended;
• 8 the view according to 5 , with the adjustment part extended;
• 9 the view according to 6 , with the adjustment part extended;
• 10 a partially sectioned view of the door drive device, with the adjustment part retracted;
• 11 the view according to 10 , but with the adjustment part extended;
• 12 a view of an embodiment of an assembly of a door drive device, with a connecting device for connecting a gear housing to a motor housing;
• 13 a view of the arrangement according to 12 , in an assembly position;
• 14 a view of the arrangement according to 12 , in a different mounting position;
• 15 a view of the arrangement according to 12 , in yet another mounting position;
• 16 a view of a further embodiment of an assembly of a door drive device with a connecting device;
• 17 a view of the arrangement according to 16 in an assembly position;
• 18 a view of the arrangement according to 16 , in a different mounting position;
• 19 a view of the arrangement according to 16 , in yet another mounting position;
• 20 an exploded view of a further embodiment of an assembly of a door drive device with a connecting device for connecting a gear housing to a motor housing;
• 21 a partial sectional view of the door drive device, with the drive motor cut away;
• 22 a partially enlarged representation of the view according to 21 ;
• 23 a view of a further embodiment of an assembly of a door drive device with a connecting device;
• 24 a view of the arrangement according to 23 , during assembly;
• 25 a view of the arrangement according to 23 and 24 , in an assembly position;
• 26 a view of yet another embodiment of an assembly of a door drive device;
• 27 a view of the arrangement according to 26 , in an assembly position;
• 28 a plan view of the arrangement according to 27 , in a first assembly position;
• 29 a plan view of the arrangement according to 27 , in a second mounting position with the motor housing rotated;
• 30 a view of yet another embodiment of an assembly of a door drive device with a connecting device for connecting a gear housing to a motor housing;
• 31 a view of the arrangement according to 30 , during assembly;
• 32 a view of the arrangement according to 30 , in an assembly position;
• 33 a view of yet another embodiment of an assembly of a door drive device with a connecting device;
• 34 a view of the arrangement according to 33 , during assembly; and
• 35 a view of the arrangement according to 33 , in an assembly position.

1 shows a schematic view of a vehicle 1 with a vehicle body 10 and a vehicle door 11 which is arranged on the vehicle body 10 in an articulated manner about a door hinge 111 and which can be pivoted along an opening direction O relative to the vehicle body 10 in order to open or close a door opening.

A door drive device 2 acts between the vehicle body 10 and the vehicle door 11. The door drive device 2 has an adjusting part 21 in the form of a sliding element and serves to adjust the vehicle door 11 relative to the vehicle body 10. The adjusting part 21 in the form of the sliding element is articulated about a joint 20 on the vehicle body 10, for example on the A-pillar of the vehicle 1, and moves relative to the vehicle door 11 when the vehicle door 11 is pivoted. For this purpose, the adjusting part 21 projects with one end 211 into a door interior 110 of the vehicle door 11 and moves within this door interior 110 when the vehicle door 11 is adjusted.

2 to 11 show views of an embodiment of a door drive device 2, which serves to adjust an adjusting part 21 and thereby to move a vehicle door 11 relative to a vehicle body 10.

The door drive device 2 comprises—in the illustrated embodiment—an electric drive motor 22, which serves to drive a spindle 25 of a gear assembly of the door drive device 2, rotatable about a rotational axis D. The drive motor 22 comprises a motor shaft 220 and a drive worm 221 arranged thereon with a worm gearing that meshes with a gear wheel 230 in the form of a spur gear of a gear 23.

The gear wheel 230 is arranged on a shaft 233 and is connected via the shaft 233 in a rotationally fixed manner to a section 250 of the spindle 25, so that the gear wheel 230 is fixed in a rotationally fixed manner to the spindle 25.

The gear wheel 23 is mounted on bearings 231, 234 relative to a gear housing 24 so as to be rotatable about the rotational axis D of the spindle 25. As can be seen in particular from the partial sectional views according to 10 and 11 in conjunction with the exploded view according to 3 As can be seen, a bearing 231 is accommodated in a bearing bush 232 and supported above it in a bearing opening 240 of the gear housing 24. Another bearing 234, on the other hand, is located in a section 245 of the gear housing 24 and provides a bearing for the shaft 233. at an end of the shaft 233 facing away from the bearing 231.

The door drive device 2 has a sliding element 26 and a guide rail 27. The guide rail 27 is, as can be seen particularly from the exploded view according to 3 visible, is received in a receiving opening 246 of the gear housing 24 and is firmly connected to the gear housing 24 via flange sections 273.

The sliding element 26 slides in the guide rail 27 such that the sliding element 26 can be adjusted longitudinally along the guide rail 27 along an adjustment direction V. The guide rail 27 has a C-shaped basic form in cross-section transverse to the adjustment direction V, formed by a base 270 and legs 271 extending laterally from the base 270 and angled towards the base 270, on which edge sections 272 are formed at ends remote from the base 270, which edge sections point towards one another. The sliding element 26 is guided in the guide rail 27 such that the sliding element 26 is received between the legs 271 and is circumferentially enclosed by the base 270, the legs 271, and the edge sections 272.

In the illustrated embodiment, the guide rail 27 is firmly connected to the gear housing 24 via an adapter element 242 and the flange sections 273 adjacent to the gear housing 24 (see in particular 2 as well as 4 to 6 ). The adapter element 242 is connected to the gear housing 24 via fastening elements 243 in the form of screws with the flange sections 273 interposed, and can be fixed to a structural section of the vehicle door 11, for example to an inner door panel section, via fastening elements 244 in the form of screws, so that the door drive device 2 is fixed in the vehicle door 11.

The adapter element 242 serves to secure the door drive device 2 to the vehicle door 11, in particular to the inner door panel of the vehicle door 11, such that the door drive device 2 is arranged within a door interior of the vehicle door 11. The adapter element 242 thus implements an interface that is customized to the customer's specific requirements and thus enables the attachment of the door drive device 2 to the vehicle door 11 of a particular vehicle model.

The adapter element 242 is arranged on the end face of the guide rail 27 and extends in a plate-like manner transversely to the adjustment direction V, along which the sliding element 26 with the adjustment part 21 arranged thereon is to be moved toward the guide rail 27. The adjustment part 21 extends through an opening 242A in the adapter element 242, is guided out of the door interior through the opening 242A, and is supported on the vehicle body 10 via the joint 20.

The sliding element 26 has a structural part 260 having a base 261 and legs 262 angled to the base 261. The structural part 260 is partially overmolded with a plastic material through which sliding sections 263 are formed on the outside of the legs 262, via which sliding sections the sliding element 26 is in sliding contact with the guide rail 27. An end 211 of the adjusting part 21 is articulated to the sliding element 26 via a coupling element in the form of a ball head. Due to the articulated connection, the adjusting part 21 is articulated to the sliding element 26 about the adjustment direction V and also about axes perpendicular to the adjustment direction V, so that tolerances in the position of the adjusting part 21 relative to the sliding element 26 can be compensated.

In addition, the sliding element 26 has a spindle nut portion 264 forming a threaded opening 265 with an internal thread formed therein. The spindle 25 engages the threaded opening 265 with a threaded portion 251, so that the spindle 25 is in threaded engagement with the spindle nut portion 264 of the sliding element 26 via an external thread formed on the outside of the threaded portion 251.

As from 3 in conjunction with 10 As can be seen, a cover element 241 is arranged on the gear housing 24, which covers the guide rail 27 on the side of the edge sections 272 and thus encloses the spindle nut section 264 of the sliding element 26 outwards along the movement path predetermined by the guide rail 27.

The adjusting part 21 is coupled via a joint pin 200 at one end 210 about a joint axis G to a joint 20 which is fixedly connected to the vehicle body 10, as shown schematically in 1 is shown. At the end 211 remote from the end 210, the adjusting part 21 is articulatedly coupled to the sliding element 26. By adjusting the sliding element 26, driven by the drive motor 22, the end 211 of the adjusting part 21 can be moved in the guide rail 27, so that the adjusting part 21 can be moved between a first, retracted position ( 4 to 6 as well as 10 ) and a second, extended position ( 7 to 9 as well as 11 ) can be adjusted to move the vehicle door 11 relative to the vehicle body 10 and between a closed position (corresponding to the retracted position of the adjustment part 21) and an open position (corresponding to an extended position of the adjustment part 21).

As can be seen from the partially sectioned view according to 10 As can be seen, in the first, retracted position, the sliding element 26 is moved away from the gear housing 24 and closer to an end of the guide rail 27 remote from the adapter element 242. In the second, extended position, the sliding element 26, in contrast, is moved toward the gear housing 24, so that the spindle nut section 264 is moved closer to the gear 23 and the adjusting part 21 is moved with its end 211 in the adjustment direction V toward the adapter element 242.

In the second position, the sliding element 26 with the structural part 260 is immersed under the gear 23, in that the sliding element 26, viewed along the adjustment direction V, comes into axial overlap with the gear housing 24 and the gear 23 accommodated thereon, as can be seen from 11 This enables a space-efficient design of the drive device 2, with a comparatively large stroke of the adjusting part 21 along the adjustment direction V and a low overall height transverse to the adjustment direction V, in particular perpendicular along the joint axis G.

As from 9 As can be seen, a longitudinal axis L, about which the motor shaft 22 of the drive motor 22 is rotatable, can be positioned obliquely to the joint axis G, about which the adjusting part 21 is articulated to the joint 20 at the end 210. This can contribute to space savings, particularly along a transverse direction (transverse to the joint axis G and transverse to the adjustment direction V). However, the longitudinal axis L can also be aligned with the joint axis G.

The door drive device 2 can be installed in a vehicle door 11 with the drive motor 22 facing upwards, or alternatively with the drive motor 22 facing downwards. The drive motor 22 can also be arranged at an end of the guide rail 27 that faces away from the end of the guide rail 27 at which the adjustment part 21 exits the guide rail 27. This allows the door drive device 2 to be universally used on different door models of different vehicles.

In the door drive device 2, to adjust the vehicle door 11 relative to the vehicle body 10, the adjusting part 21 is adjusted via the drive motor 22 along the adjustment direction V by moving the sliding element 26 on the guide rail 27. A force flow is established between the vehicle door 11 and the vehicle body 10, which flow runs from the vehicle door 11 via the adapter element 242, the gear housing 24, the drive wheel 23, the spindle 25, the sliding element 26 and the adjusting part 21 to the vehicle body 10. For adjustment, a force is introduced into the sliding element 26 via the drive motor 22, and the sliding element 26 is moved on the spindle 25, so that the adjusting part 21 is adjusted and thus the vehicle door 11 is pivoted relative to the vehicle body 10.

In the door drive device 2, the sliding element 26 is guided along the adjustment direction V on the guide rail 27, so that the sliding element 26 is adjusted by the drive motor 22 and the gear 23 and the adjustment part 21 can be moved thereover to pivot the vehicle door 11.

12 to 15 show an embodiment of an assembly of a door drive device 2, which in its operation corresponds to the previously described with reference to 2 to 11 described embodiment, so that with regard to the functioning of the door drive device 2 in normal operating condition, reference should be made to the preceding explanations.

In the door drive device 2 according to 12 to 15 a connecting device 28 is provided, via which a motor housing 222 of the drive motor 22 is to be connected to the gear housing 24 for mounting the door drive device 2.

To implement the connecting device 28, an attachment section 280 is formed on the gear housing 24, which is cylindrical with respect to the longitudinal axis L of the drive motor 22 and to which the motor housing 222 is to be attached for mounting the door drive device 2.

Adjoining the attachment section 280 is a housing section 247 into which the drive element 221 in the form of the drive worm can be inserted by attaching the motor housing 222 to the attachment section 280 and which accommodates the drive element 221 in an assembly position when the door drive device 2 is mounted.

During operation, the motor shaft 220, with the drive element arranged thereon in the form of the drive worm 221, is rotatable about the longitudinal axis L. With respect to the longitudinal axis L, the motor housing 222, for example formed by a tubular metal part, is cylindrically shaped and can be connected along the longitudinal axis L to the attachment section 280 of the gear housing 24.

In the illustrated embodiment, a housing part 29 with a connector 290 arranged thereon is arranged on the motor housing 222. An electrical connection can be established via the connector 290 to supply electrical power to the drive motor 22.

In the illustrated embodiment, engagement elements 282, 283 are formed in the form of punched tabs in the region of a lower edge of the cylindrical motor housing 222 facing the attachment section 280. When the motor housing 222 is attached to the attachment section 280, the engagement elements 282, 283 shaped as tabs can be plastically deformed on the motor housing 222 such that the engagement elements 282, 283 jointly engage in an associated engagement section 281 in the form of a recess in the attachment section 280, thus establishing a positive or non-positive connection between the transmission housing 24 and the motor housing 222.

In the illustrated embodiment, a plurality of engagement sections 281 in the form of recesses are regularly arranged one after the other around the longitudinal axis L on the attachment section 280. This makes it possible to connect the motor housing 222 to the gear housing 24 in different discrete angular positions, as can be seen from 13 to 15 can be seen, showing the motor housing 222 in different mounting positions on the gear housing 24. In each mounting position according to 13 , 14 and 15 the engagement elements 282, 283 in the form of the tabs on the motor housing 222 engage in one of the engagement portions 281 on the attachment portion 280 and thus establish a connection between the gear housing 24 and the motor housing 222.

The engagement portions 281 are formed as recesses in the form of depressions or through openings on the attachment portion 280. The recesses point radially inward and thus enable engagement of the engagement elements 282, 283, which are shaped as tabs, to establish a positive or non-positive connection between the transmission housing 24 and the motor housing 222.

By selecting a suitable angular position of the motor housing 222 relative to the gear housing 24, a desired outlet direction for the connector 290 can be set in order to obtain a space-saving arrangement with advantageous laying of a connecting cable.

In the embodiment according to 12 to 15 A group of three engagement elements 282, 283 in the form of tabs is formed on the motor housing 222, wherein a first engagement element 282 points axially along the longitudinal axis L and further engagement elements 283 point towards one another along a circumferential direction around the longitudinal axis L. In an assembled position, the engagement elements 282, 283 jointly engage in one of the engagement sections 281 and thus establish a connection between the motor housing 222 and the transmission housing 24.

For example, a further group of engagement elements 282, 283 may be formed on the motor housing 222 diametrically opposite the group of engagement elements 282, 283 in order to create a symmetrical connection with symmetrical force absorption between the motor housing 222 and the transmission housing 24.

By forming the engagement elements 282, 283, in particular a crimp connection can be created which can absorb both axial forces acting between the motor housing 222 and the gear housing 24 and torques about the longitudinal axis L.

In a 16 to 18 In the embodiment shown, (only) one axially projecting engagement element 282 is formed on the motor housing 222, wherein, for example, a further axially aligned engagement element 282 can be formed on the motor housing 222 diametrically opposite the engagement element 282. Engagement elements 283 aligned along a circumferential direction, as in the embodiment according to 12 to 15 , are not available here.

Accordingly, engagement sections 281 arranged in a row in the circumferential direction on the attachment section 280 can be designed to be narrower (viewed in the circumferential direction), so that more engagement sections 281 can be formed in the form of recesses on the attachment section 280 and thus a connection of the motor housing 222 to the gear housing 24 is possible in a larger number of discrete angular positions.

17 , 18 and 19 show the motor housing 222 in assembly positions with different angular positions relative to the gear housing 24.

Otherwise, the embodiment according to 16 to 19 the embodiment according to 12 to 15 , so reference should also be made to the previous explanations.

In the embodiments according to 12 to 19 The housing part 29, which forms the connector 290, is attached to the motor housing 222 as a separate housing part. based on the example according to 20 to 22 As can be seen, the housing part 29 has an annular section 291, which is sealed in a moisture-tight manner relative to the motor housing 222 via a first sealing element 292 in the form of a circumferential sealing element and relative to the attachment section 280 via a second sealing element 293 in the form of a circumferential sealing element when the motor housing 222 is mounted on the attachment section 280, as can be seen in particular from the sectional views according to 21 and 22 is evident.

In the mounted position, the drive element 221 is received on the motor shaft 220 in the housing section 247 of the gear housing 24, as can be seen from the sectional views according to 21 and 22 can be seen. A bearing element 225 in the form of a ball bearing provides support for the motor shaft 220 on the gear housing 24.

In the embodiment according to 20 to 22 a group of engagement elements 282, 283 is formed on the motor housing 222, analogously to the embodiment according to 12 to 15 has been described. On the attachment section 280, (only) an associated engagement section 281 is formed in the form of a recess, with which the engagement elements 282, 283 can be brought into engagement by plastic deformation for assembly in order to establish a connection between the motor housing 222 and the transmission housing 24. A further engagement section 281 can optionally be formed diametrically opposite the attachment section 280 in order to create a symmetrical connection and thus symmetrical force absorption between the motor housing 222 and the transmission housing 24 by engagement with a further group of engagement elements diametrically opposite the engagement elements 282, 283.

In a 23 to 25 In the embodiment shown, an engagement element 282' in the form of a radially outwardly projecting projection element is formed on the attachment section 280 on the gear housing 24, which can be engaged with an engagement section 281' in the form of a bayonet opening on the motor housing 222 to connect the gear housing 24 to the motor housing 222. For assembly, the motor housing 222 and the gear housing 24 are attached to one another along the longitudinal axis L of the drive motor 22, so that the engagement element 282' is engaged with the engagement section 281' in the form of the bayonet opening on the motor housing 222, as can be seen from 24 By rotating the motor housing 222 about the longitudinal axis L relative to the attachment section 280, the engagement element 282' can then be locked relative to the engagement section 281', as can be seen from 25 is evident.

While in the embodiments according to 12 to 22 the connection between the motor housing 222 and the gear housing 24 is produced by plastic deformation on the engagement elements 282, 283 and the connection between the motor housing 222 and the gear housing 24 after assembly can therefore no longer be released without destruction, the connection between the motor housing 222 and the gear housing 24 in the embodiment according to 22 to 25 detachable by removing the bayonet connection between the motor housing 222 and the gear housing 24.

In order to create a symmetrical connection with symmetrical force introduction, in the embodiment according to 22 to 25 A further engagement element 282' may be formed on the attachment portion 280, diametrically opposite the engagement element 282'. Accordingly, a further engagement portion 281' may also be formed on the motor housing 222, diametrically opposite the engagement portion 281', for establishing a bayonet connection.

In a 26 to 29 In the embodiment shown, engagement elements 282" are formed by claw elements projecting axially from an attachment section 280, between which an engagement section 281" in the form of a circumferential collar is inserted on the motor housing 222 for assembling the motor housing 222 with the gear housing 24, in order to then produce a positive or non-positive connection between the gear housing 24 and the motor housing 222 by plastic deformation, in particular hot forming, on the engagement elements 282".

In particular, the engagement elements 282" can each be plastically deformed in the region of an upper edge 285, so that material of the engagement elements 282" engages behind the engagement section 281" in the form of the circumferential collar and thus a connection is established between the motor housing 222 and the transmission housing 24.

The engagement elements 282" are diametrically opposed to each other and protrude axially from the attachment section 280. The edge sections 285 project radially inward in an initial position, wherein the edge sections 285 can be attached to the collar-shaped engagement section 281" in the region of complementary flats 284 in order to establish the connection between the motor housing 222 and the gear housing 24. After attachment, the motor housing 222 can be aligned about the longitudinal axis L in principle freely relative to the attachment section 280 in order to set a desired angular position of the motor housing 222 relative to the gear housing 24, as shown in the views according to 28 and 29 , showing the motor housing 222 in different angular positions relative to the gear housing 24.

After the motor housing 222 is attached to the attachment section 280 on the transmission housing 24, the engagement elements 282'' are plastically deformed, so that the material of the engagement elements 282'', particularly in the region of the edge section 285, runs behind the collar-shaped engagement section 281'' and thus engages behind the engagement section 281''. In the assembled position, the motor housing 222 is thus fixed relative to the transmission housing 24 and, in particular, is also held in a rotationally fixed manner.

In a 30 to 32 In the embodiment shown, engagement elements 282''' in the form of axially projecting pin elements are formed on the gear housing 24 in the region of the attachment section 280, which are brought into engagement with associated engagement sections 281''' in the form of openings formed on radially projecting tabs by attaching the motor housing 222 along the longitudinal axis L to the gear housing 24, as is the case in the transition from 30 towards 31 is evident.

By plastic deformation of the pin elements, in particular by hot forming the heads of the pin elements, a positive connection is created between the motor housing 222 and the gear housing 24, so that the motor housing 222 is fixed to the gear housing 24, as can be seen from 32 is evident.

In a 33 to 35 In the embodiment shown, the motor housing 222 can be attached along the longitudinal axis L to an attachment section 280 on the gear housing 24, so that the tubular motor housing 222 engages in the attachment section 280, as shown in 33 and 34 can be seen. Once the motor housing 222 has been attached to the gear housing 24, an upper edge 282'''' of the attachment section 280 can be plastically deformed, in particular by hot forming, and can be brought into engagement with an engagement section 281'''' in the form of a circumferential groove on the motor housing 222, so that a connection is established between the motor housing 222 and the gear housing 24, as can be seen from 35 can be seen. By hot forming the edge 282''', the material of the edge 282''' runs into the groove on the motor housing 222, thus establishing a connection between the motor housing 222 and the transmission housing 24. The edge 282''' thus forms an engagement element on the attachment section 280 on the side of the transmission housing 24.

Because the edge 282'''' and the groove 281'''' are formed rotationally symmetrically on the attachment section 280 on the side of the gear housing 24 and on the side of the motor housing 222, respectively, the motor housing 222 can be attached to the gear housing 24 in any angular position and connected to the gear housing 24. In the connected assembly position, the motor housing 222 is then load-bearing due to the plastic deformation at the edge 282'''' and is also rotationally fixed relative to the gear housing 24.

The idea underlying the invention is not limited to the embodiments described above, but can also be implemented in completely different embodiments.

A door drive device of the described type can be used, in particular, on a vehicle side door as well as on a tailgate. A door drive device of the described type can also be used, for example, to adjust a hood or a so-called frunk (i.e., a flap in the front cargo area of a vehicle), which are also to be understood as vehicle doors in the context of this text.

List of reference symbols

1

vehicle

10

body

11

vehicle door

110

Door interior

111

door hinge

2

Door drive device

20

joint

200

hinge pin

21

Adjustable part (thrust element)

210,211

End

22

drive motor

220

Motor shaft

221

Drive worm

222

Engine housing

225

Bearing element

23

Gearbox

230

gear wheel

231

warehouse

232

bearing bush

233

Wave

234

warehouse

24

Gearbox housing

240

Warehouse opening

241

Cover element

242

Adapter element

242A

opening

243, 244

Fastening element

245

Section

246

Receiving opening

247

Housing section

25

spindle

250

Section

251

Threaded section

26

Sliding element

260

Structural part

261

base

262

leg

263

sliding section

264

Spindle nut section

265

threaded opening

27

guide rail

270

base

271

leg

272

Edge sections

273

Flange section

274

discharge opening

28

Connecting device

280

Attachment section

281; 281'; 281'', 281''', 281''''

Intervention section

282, 283

engagement element

282'; 282'', 282''', 282''''

engagement element

283

Forming section

284

flattening

285

edge

29

Housing part

290

connectors

291

Ring section

292, 293

Sealing element

α

angle

D

axis of rotation

G

Joint axis

L

Longitudinal axis

O

Opening direction

V

Adjustment direction

QUOTES CONTAINED IN THE DESCRIPTION

This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This 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

• WO 2021/023893 A1 [0003]

Claims (28)

Assembly for producing a door drive device (2) for adjusting a vehicle door (11) relative to a vehicle body (10), with an adjusting part (21) for transmitting force between the vehicle door (11) and the vehicle body (10), a drive motor (22) having a motor housing (222), a gear assembly for coupling the drive motor (22) to the adjusting part (21) and a gear housing (24), characterized by a connecting device (28) which is designed to connect the gear housing (24) and the motor housing (222) to one another, wherein the connecting device (28) has at least one engagement section (281; 281';281'',281''',281'''') formed on one of the gear housing (24) and the motor housing (222) and at least one engagement element formed on the other of the gear housing (24) and the motor housing (222). (282, 283; 282';282'',282''',282'''') which can be brought into engagement with one another to establish a connection between the gear housing (24) and the motor housing (222). Assembly according to Claim 1 , characterized in that the at least one engagement portion (281; 281';281'',281''',281'''') is formed integrally on one of the gear housing (24) and the motor housing (222) and/or the at least one engagement element (282, 283; 282';282'',282''',282'''') is formed integrally on the other of the gear housing (24) and the motor housing (222). Assembly according to Claim 1 or 2 , characterized in that the connecting device (28) permanently connects the gear housing (24) and the motor housing (222) to one another in an assembled position. Assembly according to Claim 3 , characterized in that the at least one engagement element (282, 283; 282';282'',282''',282'''') has an initial shape in a pre-assembly position and is plastically deformable to produce the connection between the gear housing (24) and the motor housing (222). Assembly according to Claim 1 or 2 , characterized in that the at least one engagement element (282, 283; 282';282'',282''',282'''') and the at least one engagement portion (281; 281';281'',281''',281'''') are designed to produce a bayonet connection for connecting the gear housing (24) and the motor housing (222). Assembly according to one of the preceding claims, characterized in that the drive motor (22) has a motor shaft (220) rotatable about a longitudinal axis (L). Assembly according to Claim 6 , characterized in that the motor housing (222) is cylindrically shaped with respect to the longitudinal axis (L). Assembly according to Claim 6 or 7 , characterized in that the connecting device (28) has an attachment section (280) arranged on the gear housing (24), to which the motor housing (222) can be attached along the longitudinal axis (L). Assembly according to Claim 8 , characterized in that the attachment section (280) is cylindrically shaped with respect to the longitudinal axis (L). Assembly according to Claim 8 or 9 , characterized in that the at least one engagement element (282, 283; 282';282'',282''',282'''') or the at least one engagement portion (281; 281';281'',281''',281'''') is formed integrally with the attachment portion (280). Assembly according to one of the Claims 6 until 10 , characterized in that the connecting device (28) has a plurality of engagement sections (281; 281';281'',281''',281'''') arranged in a row around the longitudinal axis (L) and/or a plurality of engagement elements (282, 283; 282';282'',282''',282'''') arranged in a row around the longitudinal axis (L). Assembly according to Claim 11 , characterized in that the gear housing (24) and the motor housing (222) can be placed against one another and connected to one another in a plurality of positions rotated at an angle to one another about the longitudinal axis (L). Assembly according to one of the preceding claims, characterized in that the at least one engagement element (282, 283; 282';282'',282''',282'''') is formed by a plastically deformable tab on the motor housing (222). Assembly according to Claim 13 , characterized in that the at least one engagement portion (281; 281';281'',281''',281'''') is formed by a recess on the gear housing (24). Assembly according to one of the preceding claims, characterized in that the at least one engagement element (282, 283; 282'; 282'', 282''', 282'''') is formed by a radially projecting projection element on the gear housing (24). Assembly according to Claim 15 , characterized in that the at least one engagement portion (281; 281';281'',281''',281'''') is formed by a bayonet opening on the motor housing (222), wherein the projection element of the gear housing (24) engages in the bayonet opening of the motor housing (222) to establish a bayonet connection. Assembly according to one of the preceding claims, characterized in that the at least one engagement element (282, 283; 282';282'',282''',282'''') is formed by at least one plastically deformable element on the gear housing (24). Assembly according to Claim 17 , characterized in that the at least one engagement portion (281; 281';281'',281''',281'''') is formed by a radially projecting collar or a groove on the motor housing (222). Assembly according to one of the preceding claims, characterized in that the at least one engagement element (282, 283; 282';282'',282''',282'''') is formed by at least one plastically deformable pin element. Assembly according to Claim 19 , characterized in that the at least one engagement portion (281; 281';281'',281''',281'''') is formed by at least one opening with which the at least one plastically deformable pin element can be brought into engagement. Door drive device (2) for adjusting a vehicle door (11) relative to a vehicle body (10), manufactured using the assembly according to one of the preceding claims, comprising an adjusting part (21) for transmitting force between the vehicle door (11) and the vehicle body (10), a drive motor (22) having a motor housing (222), a gear assembly for coupling the drive motor (22) to the adjusting part (21), and a gear housing (24), characterized by a connecting device (28) which connects the gear housing (24) and the motor housing (222) to one another, wherein the connecting device (28) has at least one engagement section (281; 281';281'',281''',281'''') formed on one of the gear housing (24) and the motor housing (222) and at least one engagement section (281; 281';281'',281''',281'''') formed on the other of the gear housing (24) and the motor housing (222). shaped engagement element (282, 283; 282';282'',282''',282'''') which engage with one another to establish a connection between the transmission housing (24) and the motor housing (222). Door drive device (2) according to Claim 21 , characterized by a guide rail (27) connected to the gear housing (24) and a sliding element (26) guided along an adjustment direction (V) longitudinally on the guide rail (27), adjustable by the gear assembly and coupled to the adjustment part (21). Door drive device (2) according to Claim 22 , characterized in that the adjusting part (21) is articulated to the sliding element (26) at a first end (211) and to the vehicle body (10) at a second end (210). Door drive device (2) according to Claim 22 or 23 , characterized in that the gear assembly has a spindle (25) which is rotatable about an axis of rotation (D) and can be driven by the drive motor (22), wherein the sliding element (26) is threadedly connected to the spindle (25) and is adjustable by rotating the spindle (25) longitudinally along the adjustment direction (V). Door drive device (2) according to Claim 24 , characterized in that the sliding element (26) has a spindle nut portion (264) with a threaded opening (265) formed thereon, wherein the spindle (25) engages in the threaded opening (265). Door drive device (2) according to Claim 24 or 25 , characterized in that the gear assembly has a gear wheel (230) mounted on the gear housing (24) for transmitting power from the drive motor (22) to the spindle (25). Vehicle assembly, with a vehicle door (11) pivotably arranged on a vehicle body (10) and a door drive device (2) according to one of the Claims 21 until 26 for adjusting the vehicle door (11) relative to the vehicle body (10). Method for producing a door drive device using an assembly according to one of the Claims 1 until 20 , characterized by : connecting the gear housing (24) and the motor housing (222) via the connecting device (28), wherein the connecting device (28) has at least one engagement section (281; 281';281'',281''', 281'''') and at least one engagement element (282, 283; 282';282'',282''',282'''') formed on the other of the gear housing (24) and the motor housing (222), which are brought into engagement with one another to establish a connection between the gear housing (24) and the motor housing (222).