DE102020214066A1 - Ring gear assembly, transmission, vehicle door actuator, vehicle door and vehicle - Google Patents

Abstract

A ring gear arrangement 2 is proposed for a transmission of a vehicle door actuator, comprising at least one ring gear 6, the outer contour of which is formed non-round and which is received in a positive and/or non-positive manner along its entire extent in the circumferential direction by an inner contour of a housing part 4 which is formed non-round to complement it. The outer contour and the inner contour each have at least one corner. A transmission for such a vehicle door actuator, a vehicle door actuator, a vehicle door and a vehicle are also proposed.

Description

The invention relates to a ring gear arrangement, a transmission with such a ring gear arrangement, a vehicle door actuator with such a transmission, a vehicle door with such a vehicle door actuator and a vehicle with such a vehicle door actuator.

One of the objects on which the invention is based is to provide a compact and cost-effective vehicle door actuator which opens and closes a vehicle door by an electric motor.

This object is achieved by a ring gear arrangement proposed according to claim 1 and placed under protection.

A ring gear arrangement for a transmission of a vehicle door actuator is proposed, the ring gear arrangement having at least one ring gear, the outer contour of which is formed non-round and which preferably along its entire extent in the circumferential direction is positively and/or non-positively connected by a complementary and preferably closed non-round inner contour of a housing part is recorded. The outer contour and the inner contour each have at least one corner.

It is proposed that at least one corner be rounded and thus shaped like a corner. This is accompanied by a reduced notch effect, so that high stress peaks are suppressed when stressed by a torque to be supported.

It is also proposed to shape the outer contour and the inner contour as mutually complementary polygonal profiles with at least two such corners, which advantageously, but not necessarily, can be rounded and thus shaped like corners.

According to this, the outer contour and the inner contour, which are joined together in a form-fitting and/or non-positive manner, each form at least one triangle (or monogon) or one polygon profile in the form of a two-corner (or bigon), triangle (or trigon), square ( or tetragons) and so on.

In addition, these polygon profiles can have equal sides and equal interior angles, i.e. form a so-called regular polygon profile, or alternatively a polygon profile with unequal sides and unequal interior angles, i.e. a so-called irregular polygon profile.

In one embodiment, it is proposed that the two polygonal profiles that are joined together be shaped as a triangular profile. The triangular profile can be shaped in the form of a P3G profile (or a profile similar to a triangle), the corners of which are rounded and thus shaped like a corner. The P3G profile represents a regular and also standardized polygon profile (cf. DIN 32711).

In a further, alternative embodiment, it is proposed that the two polygonal profiles joined together should each be shaped as a square profile. The square profile can be shaped in the form of a P4C profile (or square-like profile), the corners of which are rounded and thus shaped like a corner. The P4C profile also represents a regular polygon profile and also a standardized polygon profile (cf. DIN 32712).

All of the non-round connections described above have in common that they can be used to transmit high torques. They are also based on simple assembly.

In addition, in comparison to other form-fitting, force-fitting and/or material-fitting connections, they advantageously allow unequal material pairings. Thus, the ring gear and/or the housing part accommodating the ring gear can be formed from a metallic material and/or non-metallic material, in particular a plastic.

The polygonal out-of-round connections described above are very space-saving, so that they promote compactness of an actuator.

The aforementioned P3G profile and the aforementioned P4C profile also have in common that they are self-centering and smooth-running. In addition, they have a very low notch effect in common, so that high stress peaks when stressed by a torque to be supported are suppressed.

Furthermore, a transmission for a vehicle door actuator with the ring gear arrangement described above is proposed and protected (cf. claim 9).

In this case, the transmission can be in the form of a planetary transmission, for example in the form of a multi-stage planetary transmission, in order to be able to achieve a correspondingly desired torque amplification even with a very limited and available installation space.

Furthermore, a vehicle door actuator is proposed with such a transmission and placed under protection (cf. claim 12), which is provided for pivoting a vehicle door and/or tailgate of a vehicle about a pivot point of a hinge.

A vehicle door with such a vehicle door actuator is also proposed and protected (cf. claim 13).

A vehicle door is to be understood as meaning a front or rear door or also a tailgate of a vehicle.

In addition, a vehicle with such a vehicle door actuator is proposed and protected (cf. claim 14).

A vehicle is to be understood as meaning any type of vehicle that is operated either by an internal combustion engine and/or by an electric motor, but in particular passenger cars and/or commercial vehicles.

• 1 eine vorgeschlagene Hohlradanordnung in einer ersten Schnittdarstellung,
• 2 die in 1 gezeigte Hohlradanordnung in einer zweiten Schnittdarstellung und
• 3 die in 1 gezeigte Hohlradanordnung in einer perspektivischen Darstellung.

The invention is explained in detail below with reference to figure representations. Further advantageous developments of the invention result from the dependent claims and the following description of preferred embodiments. For this show:

• 1 a proposed ring gear arrangement in a first sectional view,
• 2 in the 1 Ring gear assembly shown in a second sectional view and
• 3 in the 1 Ring gear assembly shown in a perspective view.

The proposed ring gear arrangement 2 is provided for a transmission, in particular a multi-stage transmission of a vehicle door actuator for the electric motor pivoting of a vehicle door and/or a tailgate of a vehicle about a pivot point of a hinge.

According to the proposal, a ring gear 6 is inserted in a form-fitting manner in a tubular, preferably closed, shaped or constructed housing part 4, for example in the form of a deep-drawn housing - e.g. made of steel or plastic - with an outer contour of the ring gear 6 being form-fitting along its entire extent in the circumferential direction interacts with a preferably closed peripheral inner contour of the housing part 4 .

The outer contour and the inner contour are each shaped non-round and complementary to each other and each form a so-called polygon profile in the form of a so-called P3G profile, which represents a triangular profile or a profile similar to a triangle with rounded corners (cf. DIN 32711).

As an alternative to this, the respective polygonal profile can also be designed in the form of a so-called P4C profile, which represents a square profile or a profile similar to a square, the corners of which are rounded (cf. DIN 32712).

However, a polygonal shape deviating from these two proposed profile shapes with rounded corners, for example, is also conceivable. The respective polygonal profile can have sides of equal or unequal length and thus equal or unequal internal angles, depending on the available installation space between the vehicle door and an associated vehicle pillar and/or another associated vehicle body section, opposite which/which the vehicle door is articulated.

In principle, however, the proposed out-of-round connection between the outer contour of the ring gear 6 and the inner contour of the housing part 4 can - depending on the requirement - form a form fit and/or a force fit, depending on whether there is a relative movement in the longitudinal direction between the ring gear 6 and the housing part 4 of the housing part 4 occurs.

Thus, the ring gear 4 and/or the housing 6 can be made of a metallic material and/or a non-metallic material, for example in the form of a plastic.

2 illustrates a section of a three-stage planetary gear, for example, in which three, in particular helical planetary gear sets, each of which includes such a proposed ring gear 6, are arranged one behind the other. An intermediate carrier 8 can be seen between the ring gears 6, which in turn - in analogy to the two ring gears 6 - is shaped non-round and is pushed into the housing 4 with a form fit - and is non-rotatable and stationary relative to the housing part 4 - and on which a Rolling or plain bearings supported.

Depending on the installation position or position of use of the vehicle door actuator, i.e. whether it is arranged on the vehicle door or the tailgate or alternatively on an assigned vehicle pillar and/or another assigned body section, this moves with the vehicle door/tailgate or relatively when the vehicle door/tailgate is pivoted to.

The vehicle door actuator can be on the vehicle door or on the tailgate or on the vehicle column or body form side hinge section. As an alternative to this, the vehicle door actuator does not represent a hinge section, but merely a drive unit which as such enables said pivoting in addition to a separate hinge.

A vehicle pillar is to be understood in particular as an A, B or C pillar of a vehicle. Such a pillar can also be understood to mean that section of a vehicle body in relation to which a tailgate is articulated.

For the sake of simplicity, the components of the transmission which are arranged internally to the described ring gear arrangement 2 and can be driven by an electric motor and which can be rotated relative to the ring gear arrangement 2 are neither shown nor described within the scope of this disclosure.

Although exemplary embodiments are explained in the preceding description, it should be pointed out that a large number of modifications are possible. In addition, it should be noted that the exemplary implementations are only examples and are not intended to limit the scope, applications, or construction in any way. Rather, the preceding description gives the person skilled in the art a guideline for the implementation of at least one exemplary embodiment, with various changes, in particular with regard to the function and arrangement of the components described, being able to be made without departing from the scope of protection, as it emerges from the claims and these equivalent combinations of features.

Claims (14)

Ring gear arrangement for a transmission of a vehicle door actuator, comprising at least one ring gear (6), the outer contour of which is formed non-round and which is received positively and/or non-positively along its entire extent in the circumferential direction by an inner contour of a housing part (4) which is formed non-round to complement it, the Outer contour and the inner contour each have at least one corner. ring gear arrangement claim 1 , wherein the at least one corner is rounded and thus shaped like a corner. ring gear arrangement claim 1 or 2 , wherein the outer contour and the inner contour are formed as mutually complementary polygonal profiles with at least two corners. ring gear arrangement claim 3 , wherein the outer contour and the inner contour are each formed as a triangular profile. ring gear arrangement claim 4 , wherein the triangular profile is shaped in the form of a P3G profile (or triangular-like profile), the corners of which are rounded and thus shaped like a corner. ring gear arrangement claim 3 , wherein the outer contour and the inner contour are each formed as a square profile. ring gear arrangement claim 6 , wherein the square profile is shaped in the form of a P4C profile (or square-like profile), the corners of which are rounded and thus shaped like a corner. Ring gear arrangement according to one of the preceding claims, whose ring gear (4) and/or housing part (6) is/are made of a metallic material and/or non-metallic material, in particular a plastic. Transmission for a vehicle door actuator with a ring gear arrangement according to one of the preceding claims. gear after claim 9 in the form of a planetary gear. gear after claim 10 in the form of a multi-stage planetary gear. Vehicle door actuator for pivoting a vehicle door and/or a tailgate of a vehicle about a pivot point of a hinge, comprising a transmission according to one of claims 9 until 11 . Vehicle door with a vehicle door actuator claim 12 . vehicle with a vehicle door actuator claim 12 .

Images