DE102019002602A1 - Actuator of a camera module of a motor vehicle - Google Patents

Abstract

The invention relates to an actuator of a camera module of a vehicle. In an actuator in which a noise nuisance is reduced, the camera module (3) is connected to a drive via a displacement mechanism (5), wherein the camera module (3) is pivotable at least between two end positions.

Description

The invention relates to an actuator of a camera module of a motor vehicle.

From the DE 10 2017 002 743 A1 an actuator for driving a rear view camera of a vehicle is known, which has a recorded in a housing drive unit comprising an electric motor and a transmission, via which the reversing camera is driven by the electric motor. For multi-stage vibration control decoupling of the actuator, a damping device is provided which damps vibrations of the actuator in two different frequency ranges. This damping device consists of elastomer parts which are arranged for mounting of the electric motor in the housing of the actuator.

The object of the invention is to provide an actuator which is extensively acoustically decoupled.

The invention results from the features of the independent claims. Advantageous developments and refinements are the subject of the dependent claims. Other features, applications and advantages of the invention will become apparent from the following description, as well as the explanation of embodiments of the invention, which are illustrated in the figures.

The object is achieved with an actuator in that the camera module is connected to a drive via a displacement mechanism, wherein the camera module is pivotable at least between two end positions. Since the actuator does not act directly on the camera module, an acoustic decoupling is achieved at the highest potential by the interposed displacement mechanism. The two end positions ensure the necessary position accuracy of the actuator in these end positions.

Advantageously, the two end positions correspond to a use and a non-use position of the camera module. Thus, the desired position of the camera module is reliably displayed by the end positions.

In one embodiment, the displacement mechanism is designed as a lever mechanism which comprises a pivot shaft mounted transversely on the vehicle body, on which lever are pivotally mounted. Such a lever mechanism is very robust and structurally easy to produce.

In an alternative, the displacement mechanism is designed as a transmission whose transmission shaft is connected transversely to the vehicle body.

In a variant, the pivot shaft mounted on the vehicle body is connected to the drive via the Bowden cable. This allows a simple mechanical actuation of the displacement mechanism by the drive

In one embodiment, the end positions are defined by a pull-out length of the Bowden cable. Thus, the position of the camera module over the length of the Bowden cable can be carefully adjusted.

In one embodiment, the end positions are formed by stops, wherein a camera housing has a stop for the use position and the pivot shaft has a stop for the non-use position on the vehicle body. By using structurally simple stops, the end positions of the camera module are easily defined.

Advantageously, the displacement mechanism is held on a, preferably made of plastic carrier component which can be fastened to the vehicle body. Thus, the displacement mechanism can be easily attached to the body.

In a development, a sensor for detecting the position of the camera module is attached to one of the pivotable components of the displacement mechanism, preferably to an intermediate lever of the lever mechanism. As a result, the position of the camera module can be determined and evaluated at any time.

In a further embodiment, a return of the camera module is formed by a spring element on the displacement mechanism. This simplifies the return of the camera module.

Alternatively, the return via a double or a train-pressure Bowden cable is formed on the displacement mechanism.

An additional improvement of the acoustics can be achieved by approaching the end positions at a reduced speed. In particular at critical locations of the camera module installation space savings is possible, with the same space larger travels are possible. With the use of satellite drives, as used in lock drives, a common-part strategy reduces the cost potential in the vehicle.

Further advantages, features and details emerge from the following description, in which - optionally with reference to the drawing - at least one embodiment is described in detail. Described and / or illustrated features may form the subject of the invention itself or in any meaningful combination, optionally also independent of the claims, and in particular may also be the subject of one or more separate application / s. The same, similar and / or functionally identical parts are provided with the same reference numerals.

• 1 ein Ausführungsbeispiel des erfindungsgemäßen Stellantriebes,
• 2 einen Verfahrweg des Kameramoduls über den Weg am Bowdenzug.

Show it:

• 1 An embodiment of the actuator according to the invention,
• 2 a travel path of the camera module over the way on the Bowden cable.

In 1 is an embodiment of the actuator according to the invention 1 shown, wherein a camera module 3 shown in different positions. The camera module 3 is about a lever mechanism 5 with a Bowden cable 7 connected to which a non-illustrated actuator, preferably a satellite drive in the form of a planetary drive connects. The lever mechanism 5 is on a plastic carrier plate 9 attached, which in turn is fixed to the vehicle body. The lever mechanism 5 has a pivot shaft 11 on, which is mounted transversely to the vehicle body. At the pivot shaft 11 are levers 13 . 15 hinged pivotally.

In 1a is the actuator 1 in a retracted end position of the camera module 3 shown while in 1 b an intermediate position of the camera module 3 and in 1c the extended camera module is shown. The camera module 3 is between the in 1a and 1c shown end positions pivotally, wherein one of the end positions a position of use for the camera module 3 and the other end position a non-use position of the camera module 3 represents. Between the retracted end position and the extended end position is preferably an angle of about 180 °. The stops are useful between pivot shaft 11 and housing formed. To the position of the camera module 3 can recognize, a sensor for position detection on one of the pivotable components, in particular on the pivot shaft 11 be attached. To return the camera module 3 can at the lever work 5 be arranged a spring element.

In 2 is a travel path of the camera module 3 over the way of the Bowden cable 7 shown, from which it is apparent that lie approximately 180 ° between the two end positions. The levers 13 . 15 and the pivot shaft 11 advantageously form a toggle.

Although the invention has been further illustrated and explained in detail by way of preferred embodiments, the invention is not limited by the disclosed examples, and other variations can be derived therefrom by those skilled in the art without departing from the scope of the invention. It is therefore clear that a multitude of possible variations exists. It is also to be understood that exemplified embodiments are really only examples that are not to be construed in any way as limiting the scope, applicability, or configuration of the invention. Rather, the foregoing description and description of the figures enable one skilled in the art to practice the exemplary embodiments, and those skilled in the art, having the benefit of the disclosed inventive concept, can make various changes, for example, to the function or arrangement of individual elements recited in an exemplary embodiment, without Protection area defined by the claims and their legal equivalents, such as further explanations in the description.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102017002743 A1 [0002]

Claims (10)

Actuator of a camera module of a motor vehicle, characterized in that the camera module (3) is connected to a drive via a displacement mechanism (5), wherein the camera module (3) is pivotable at least between two end positions. Actuator to Claim 1 , characterized in that the two end positions of a use and a non-use position of the camera module (3) correspond. Actuator to Claim 1 or 2 , characterized in that the displacement mechanism is designed as a lever mechanism (5), which comprises a transverse to the vehicle body mounted pivot shaft (11) on which levers (13, 15) are pivotally articulated. Actuator to Claim 1 or 2 , characterized in that the displacement mechanism (5) is designed as a transmission whose transmission shaft is connected transversely to the vehicle body. Actuator to Claim 3 , characterized in that the mounted on the vehicle body pivot shaft (11) is connected to the drive via the Bowden cable (7). Actuator to Claim 5 , characterized in that the end positions are defined by a pull-out length of the Bowden cable (7). Actuator according to at least one of the preceding claims, characterized in that the end positions are formed by stops, wherein a camera housing has an end stop for the position of use and the pivot shaft (11) has a stop for the non-use position on the vehicle body. Actuator according to at least one of the preceding claims, characterized in that the displacement mechanism (5) on a, preferably made of plastic support member (9) is held, which is attachable to the vehicle body. Actuator according to at least one of the preceding claims, characterized in that a sensor for detecting the position of the camera module (3) on one of the pivotable components of the displacement mechanism (5), preferably on the pivot shaft (11) is fixed. Actuator according to at least one of the preceding claims, characterized in that a return via a spring element on the displacement mechanism (5) is formed.

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