Drive arrangement for an adjustment device of a motor vehicle, adjustment device

Abstract

Drive arrangement (2) for an adjustment device (1) of a motor vehicle, comprising a drive motor (4), a retaining element (7) to which the drive motor (4) is attached, and at least one damping element (11) which is interposed between the drive motor (4) and the retaining element (7), wherein the damping element (11) is pre-tensioned between the drive motor (4) and the retaining element (7), characterized in that the retaining element (7) has a clamping arc (9) under which the drive motor (4) can be inserted section by section under elastic deformation of at least the damping element (11).

Description

[0001] The invention relates to a drive arrangement for an adjustment device of a motor vehicle, comprising a drive motor, a mounting element in which the drive motor is attached, and at least one damping element interposed between the drive motor and the mounting element. Furthermore, the invention relates to an adjustment device, in particular an electric window regulator, for a motor vehicle, comprising a movable actuator element and a drive arrangement for moving the actuator element.

[0002] Drive arrangements and adjustment devices of the type mentioned above are known from the prior art. For example, German patent application DE 10 2009 039 713 A1 discloses an adjustment device for a motor vehicle with a drive motor that rests on a holding element via an interposed damping element. The damping element reduces the vibrations transmitted from the drive motor to the holding element, thereby reducing, in particular, acoustic damping and the transmission of noise generated by the drive motor to, for example, a vehicle body that supports the holding element.

[0003] The invention is based on the objective of creating an improved drive arrangement in which sound and vibrations introduced into the supporting structure are further reduced.

[0004] The problem underlying the invention is solved by a drive arrangement with the features of claim 1. This arrangement has the advantage that, by means of a predefinable preload of the damping element, the drive motor is damped more effectively, and consequently, noise and vibration emissions from the drive motor are reduced. According to the invention, the damping element is preloaded between the drive motor and the retaining element. In a first embodiment, the preload is generated by a separate clamping device, which preloads the damping element against the drive motor.

[0005] According to a preferred embodiment, the drive motor rests on a support element and is preloaded against the support element by the retaining element and the interposed damping element. In this case, the aforementioned clamping device is thus provided by the combination of the support element and the retaining element itself. The drive motor is therefore clamped between the support element and the retaining element, and the preload acting on the drive motor, and thus also on the damping element, can be varied by selecting the material and design of the support element and the retaining element. This results in a simple and cost-effective solution.

[0006] The retaining element is preferably formed integrally with the support element. This reduces both manufacturing costs and the number of parts. Furthermore, the integrated design results in a weight-saving drive assembly.

[0007] Furthermore, it is preferably provided that the retaining element has a clamping arch projecting from the support element, under which the drive motor can be inserted section by section, causing elastic deformation of the clamping arch. The drive motor can thus be inserted between the support element and the retaining element or clamping arch, thereby exerting a clamping force on the clamping arch. This force elastically deforms the damping element and thus pre-tensions it. This offers the advantage of particularly simple assembly of the drive arrangement, in which the drive motor simply needs to be inserted under the clamping arch. The clamping arch can be connected to the support element at both ends, or only at one end, so that it has a free end whose distance to the support element can vary due to elastic deformation.

[0008] Furthermore, it is preferably provided that the damping element is arranged on the underside of the clamping arch facing the support element. This ensures that the damping element is always positioned between the drive motor and the clamping arch when the drive motor is mounted.

[0009] Preferably, the damping element is made of plastic. By selecting an appropriate material, the elasticity of the damping element, and thus its damping effect, can be easily and cost-effectively adapted to the specific application. In particular, the damping element is made of EPDM or TPE.

[0010] According to a preferred embodiment of the invention, the retaining element is attached to the support element as a separate part. For this purpose, the retaining element is, for example, screwed, glued or welded to the support element.

[0011] The adjusting device according to the invention, comprising the features of claim 8, is characterized by the drive arrangement according to the invention. This results in the advantages already mentioned.

[0012] Further advantages and preferred features and combinations of features will become apparent in particular from those described above and from the claims. The invention will now be explained in more detail with reference to the drawings. These include: Fig. 1. An adjustment device for a motor vehicle in a simplified side view and Fig. 2 A detailed view of the adjustment device in a top view.

[0013] Fig. Figure 1 shows a simplified side view of an adjustment device. 1 for a motor vehicle, which in this case is designed as a window regulator. The adjustment device 1 features a drive arrangement 2on, which includes an actuator element not shown in detail here 3 , which is designed, for example, as a window lifter, cooperating drive motor 4 exhibits.

[0014] The drive motor 4 is on a support element 5 stored, which is, for example, a body part in a vehicle door containing the window regulator mechanism. The support element 5 has a top side in that respect 6 on, onto which the drive motor 4 It can be laid down. Furthermore, the support element has 5 a holding element formed in one piece with it 7 up, which is from the top 6 protrudes. The retaining element 7 is designed in such a way that it works together with the support element 6 a recording 8 for the drive motor 4 forms, into which the drive motor 4 It can be partially retracted. The retaining element protrudes beyond this point.7 a section, in this case an end section, of the drive motor 4 .

[0015] Fig. Figure 2 shows a detailed view of the retaining element. 7 in a simplified top view. It can be seen that the retaining element 7 is arch-shaped and thus forms a clamping arch 9 forms the recording 8 The clamping arch spans or forms. 9 is on both sides with the support element 5 connected, and in particular formed as a single piece with it, as previously mentioned. The clamping arch 9 is optionally elastically deformable, at least in sections. On one of the support elements 5 , especially its upper surface 6 underside facing 10 is a damping element 11 arranged. The damping element 11 is preferably made of plastic, in particular EPDM or TPE, and is elastically deformable.

[0016] The damping element is... 11 arranged in such a way that it is located between the drive motor 4 and the retaining element 7 or the clamping arch 9 is elastically deformed when the drive motor 4 into the recording 8 it is inserted or tilted in. This creates a preload that is applied to the damping element. 11 on the one hand and on the drive motor 4 on the other hand, it has an effect, which in turn affects the operation of the drive motor 4 The vibrations and noise generated are dampened and are not transmitted to the body of the motor vehicle, or only in a reduced form.

[0017] The clamping arch 9 is optionally designed to be rigid, whereby the elasticity required for inserting the drive motor is then 4 into the recording 8 necessary solely due to the damping element 11 is provided.

[0018] While, according to the following embodiment, the retaining element 7 integrally with the support element 5 In a further embodiment, it is provided that the retaining element is designed 7 in particular is designed as a separate part or component that is attached to the support element by subsequent fastening methods 5 is fastened, for example by welding, screwing, gluing, clamping or the like.

[0019] The illustrated drive arrangement 2 It is cost-effective and easy to implement in terms of design, and also allows for easy assembly of the drive motor. 4 . Reference symbol list 1 Adjustment device 2 Drive arrangement 3 Actuator element 4 Drive motor 5 support element 6 Top 7 Holding element 8th recording 9 clamping sheets 10 Subpage 11 Damping element QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 102009039713 A1

[0002]

Claims

[1] Drive arrangement (2) for an adjustment device (1) of a motor vehicle, comprising a drive motor (4), a holding element (7) to which the drive motor (4) is attached, and at least one damping element (11) which is interposed between the drive motor (4) and the holding element (7), characterized by , that the damping element (11) is pre-tensioned between the drive motor (4) and the holding element (7). [2] Drive arrangement according to claim 1, characterized by , that the drive motor (4) rests on a support element (5), and that the drive motor (4) is biased against the support element (5) by the retaining element (7) and the damping element (11). [3] Drive arrangement according to one of the preceding claims, characterized by , that the retaining element (7) is formed integrally with the support element (5). [4] Drive arrangement according to one of the preceding claims, characterized by, that the retaining element (7) has a clamping arc (9) under which the drive motor (4) can be inserted section by section under elastic deformation of at least the damping element (11). [5] Drive arrangement according to one of the preceding claims, characterized by , that the damping element (11) is arranged on an underside of the clamping arch (9) facing the support element (5). [6] Drive arrangement according to one of the preceding claims, characterized by , that the damping element (11) is made of elastically deformable plastic. [7] Drive arrangement according to one of the preceding claims, characterized by , that the retaining element (7) is attached as a separate part to the support element (5). [8] Adjustment device, in particular window lifting device, for a motor vehicle, comprising a drive arrangement and an actuator element (3) movable by the drive arrangement, characterized bythe design of the drive arrangement (2) according to one of claims 1 to 7.

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