DE102020119100A1 - tailgate for a motor vehicle, motor vehicle - Google Patents

Abstract

A tailgate (1) for a motor vehicle (100) has an upper shell (2), a lower shell (3) and a rear panel (4), the upper shell (2) having a ventilation grille (5) and a rear spoiler (6). having. A motor vehicle (100) is also proposed.

Description

The present invention relates to a tailgate for a motor vehicle.

In sporty motor vehicles in particular, the engine is often located under the tailgate. In order to ensure its stable operation, there is a need to supply cooling air to the engine and to flush the engine compartment below the tailgate with air. In addition, the tailgate must fulfill an important aerodynamic function and ensure sufficient contact pressure on the rear axle due to the airflow generated while driving.

Various options are known from the prior art for introducing air into the engine compartment below the tailgate. For example, the tailgate of the Porsche Carrera 992 is designed in several parts with a ventilation grille and a rear spoiler. The ventilation grille and the rear spoiler are mounted on a shell cover, with an engine compartment cover being arranged below the shell cover. The rear spoiler has a hinged spoiler edge, which can be moved upwards with a drive. Disadvantages of such a construction are the large number of components required and the resulting high weight and high costs.

It is therefore an object of the present invention to provide a tailgate for a motor vehicle which does not have the disadvantages of the prior art described but is of simpler construction and lighter and has fewer parts.

This object is achieved by a tailgate for a motor vehicle, having an upper shell, a lower shell and a rear panel, the upper shell having a ventilation grille and a rear spoiler. The interaction of the upper shell with the ventilation grille and the rear spoiler on the one hand and the lower shell and the rear panel on the other side enables the tailgate to be cleverly designed so that air can flow into an area below the tailgate. The construction of the two shells offers the possibility to create a functional space between the upper shell and the lower shell. The arrangement on a shell cover is therefore just as unnecessary as the installation of an engine compartment cover or a drive of a spoiler edge. It is therefore particularly conceivable that the rear spoiler is fixed.

Advantageous configurations and developments of the invention can be found in the subclaims and the description with reference to the drawings.

According to a preferred embodiment of the invention, it is provided that the upper shell and the ventilation grille are in one piece. Such an upper shell is easy to manufacture. There is no need to provide fastening devices for fastening the ventilation grille to the upper shell. By eliminating the attachment of the ventilation grille, the tailgate is also lighter and cheaper overall.

According to a further preferred embodiment of the invention, it is provided that the upper shell and the rear spoiler are in one piece. This also simplifies production, since no fastening options for the rear spoiler have to be provided on the upper shell. The upper shell, the ventilation grille and the rear spoiler are preferably in one piece. As an alternative to this, it is provided that the rear spoiler is screwed and/or glued to the upper shell and/or the lower shell.

According to a further preferred embodiment of the invention, it is provided that the upper shell has a fiber composite plastic, the ventilation grille preferably having a fiber composite plastic, the rear spoiler preferably having a fiber composite plastic. Fiber composite plastics are ideal for the function of air-guiding elements, in particular the tailgate with the rear spoiler and the ventilation grille. Components made of fiber composite plastics are light and robust.

According to a further preferred embodiment of the invention, it is provided that the upper shell, the ventilation grille and the rear spoiler are produced in one piece from a fiber-reinforced plastic. The one-piece production gives the tailgate a very high stability. Furthermore, the production of the tailgate is simplified.

According to a further preferred embodiment of the invention, it is provided that the rear panel and/or the lower shell are made of a fiber composite material. This advantageously means that the tailgate has a very low weight. Another advantage that arises from this is the high degree of freedom in the design of the lower shell and the rear panel.

According to a further preferred embodiment of the invention it is provided that between An opening is provided between the rear panel and the lower shell. An opening between the rear bezel and the lower shell allows access from a space between the upper shell and the lower shell to an area below the lower shell. It is conceivable, for example, that air can flow through the opening for cooling an engine compartment arranged under the lower shell.

According to a further preferred embodiment of the invention, it is provided that the rear panel is provided for conducting air from the ventilation grille through the opening into an area under the lower shell. This makes it possible in an advantageous manner to flush the area under the lower shell, in particular, for example, an engine compartment, with air. It is conceivable, for example, that the airflow is directed through the ventilation grille into a space between the upper shell and lower shell and then from the rear panel through the opening into the area below the lower shell.

According to a further preferred embodiment of the invention, it is provided that the upper shell and the lower shell are screwed together and/or glued together and/or clipped into one another, with the lower shell and the rear panel preferably being screwed together and/or glued together and/or clipped into one another . This ensures a safe construction of the tailgate. Forces acting on the tailgate can thus be safely absorbed and dissipated.

A further object of the invention for solving the problem formulated at the outset is a motor vehicle having a tailgate according to the invention.

All the details, features and advantages previously disclosed in connection with the tailgate according to the invention also relate to the motor vehicle according to the invention.

• 1 illustriert schematisch eine Heckklappe gemäß einer beispielhaften Ausführungsform der vorliegenden Erfindung in Explosionsdarstellung.
• 2 illustriert schematisch ein Kraftfahrzeug gemäß einer beispielhaften Ausführungsform der vorliegenden Erfindung mit einer Heckklappe gemäß einer beispielhaften Ausführungsform der vorliegenden Erfindung.

Further details, features and advantages of the invention result from the drawings and from the following description of preferred embodiments with reference to the drawings. The drawings merely illustrate exemplary embodiments of the invention, which do not limit the inventive idea.

• 1 12 schematically illustrates an exploded view of a tailgate according to an exemplary embodiment of the present invention.
• 2 12 schematically illustrates a motor vehicle according to an exemplary embodiment of the present invention having a liftgate according to an exemplary embodiment of the present invention.

1 1 schematically illustrates a tailgate 1 according to an exemplary embodiment of the present invention for a motor vehicle (see FIG 2 ) in exploded view. An upper shell 2, a lower shell 3 and a rear panel 4 can be seen. The upper shell 2 is made in one piece with a ventilation grille 5 and a rear spoiler 6 from a fiber-reinforced plastic.

As a result, the upper shell 2 is stable and light. The rear spoiler 6 causes the rear of the motor vehicle to be driven down by the oncoming airstream, which increases the contact pressure of the rear axle. The ventilation grille 5 allows the airstream to flow into the space between the upper shell 2 and the lower shell 3 and is guided from here to an engine compartment below the lower shell 3 . This is supported by the rear panel 4, which guides the incoming air through an opening under the lower shell 3. The rear panel 4 and the lower shell 3, like the upper shell 2, are made of a fiber-reinforced plastic. The upper shell 2, the lower shell 3 and the rear panel 4 are screwed together so that good mechanical stability of the tailgate 1 is ensured.

2 1 schematically illustrates a motor vehicle 100 according to an exemplary embodiment of the present invention with a tailgate 1 according to an exemplary embodiment of the present invention. The upper shell 2, the ventilation grille 5, the rear spoiler 6 and the rear panel 4 of the tailgate 1 are clearly visible here.

Reference List

1

tailgate

2

Upper shell

3

bottom shell

4

rear panel

5

ventilation grille

6

rear spoiler

100

motor vehicle

Claims (10)

Tailgate (1) for a motor vehicle (100), having an upper shell (2), a lower shell (3) and a rear panel (4), the upper shell (2) having a ventilation grille (5) and a rear spoiler (6). Tailgate (1) down claim 1 , wherein the upper shell (2) and the ventilation grille (5) are in one piece. Tailgate (1) according to one of the preceding claims, wherein the upper shell (2) and the rear spoiler (6) are in one piece. Tailgate (1) according to one of the preceding claims, wherein the upper shell (2) comprises a fiber-reinforced plastic, the ventilation grille (5) preferably comprises a fiber-reinforced plastic, the rear spoiler (6) preferably comprises a fiber-reinforced plastic. Tailgate (1) according to one of the preceding claims, in which the upper shell (2), the ventilation grille (5) and the rear spoiler (6) are produced in one piece from a fiber-reinforced plastic. Tailgate (1) according to one of the preceding claims, wherein the rear panel (4) and/or the lower shell (3) are made from a fiber composite material. Tailgate (1) according to one of the preceding claims, wherein an opening is provided between the rear panel (4) and the lower shell (3). tail cap (1) after claim 7 wherein the rear panel (4) is provided for directing air from the ventilation grille (5) through the opening into an area under the lower shell (3). Tailgate (1) according to one of the preceding claims, wherein the upper shell (2) and the lower shell (3) are screwed together and/or glued together and/or clipped into one another, the lower shell (3) and the rear panel (4) preferably being connected to one another screwed and / or glued together and / or clipped together. Motor vehicle (100) having a tailgate (1) according to one of the preceding claims.

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