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DE-102023133605-B4 - Air vents for a vehicle

DE102023133605B4DE 102023133605 B4DE102023133605 B4DE 102023133605B4DE-102023133605-B4

Abstract

Air outlet (10) for a vehicle comprising a movable first functional device and at least one movable second functional device, wherein the first functional device and the second functional device are movable by means of a drive device (20), wherein the drive device (20) comprises a drive shaft (19) rotatable in opposite directions of rotation (u1, u2), with which a drive gear (21) can be driven and has at least a first output gear (22) and a second output gear (24) for driving the functional devices of the air outlet (10), wherein the drive gear (21) is rotatably connected to the drive shaft (19) and is either helical-toothed corresponding to the output gears (22, 24) and is movable in directions (x1, x2) parallel to the drive axis of rotation (x1) depending on the direction of rotation (u1, u2) of the drive shaft (19), or is movable depending on the direction of rotation (u1, u2) the first output gear (22) of the drive shaft (19) can be brought into engagement with a first planet gear (47) or the second output gear (24) can be brought into engagement with a second planet gear (48), wherein the planet gears (47, 48) are in engagement with the drive gear (21) and are rotatable about the axis of rotation (a1) of the drive gear (21).

Inventors

  • Alexander Grüdl
  • Willy Kenfack

Assignees

  • GRAMMER AKTIENGESELLSCHAFT

Dates

Publication Date
20260513
Application Date
20231130

Claims (10)

  1. Air outlet (10) for a vehicle comprising a movable first functional device and at least one movable second functional device, wherein the first functional device and the second functional device are movable by means of a drive device (20), wherein the drive device (20) comprises a drive shaft (19) rotatable in opposite directions of rotation (u1, u2), with which a drive gear (21) can be driven and has at least a first output gear (22) and a second output gear (24) for driving the functional devices of the air outlet (10), wherein the drive gear (21) is rotatably connected to the drive shaft (19) and is either helical-toothed corresponding to the output gears (22, 24) and is movable in directions (x1, x2) parallel to the drive axis of rotation (x1) depending on the direction of rotation (u1, u2) of the drive shaft (19), or is movable depending on the direction of rotation (u1, u2) the first output gear (22) of the drive shaft (19) can be brought into engagement with a first planet gear (47) or the second output gear (24) can be brought into engagement with a second planet gear (48), wherein the planet gears (47, 48) are in engagement with the drive gear (21) and are rotatable about the axis of rotation (a1) of the drive gear (21).
  2. Air outlets (10) after Claim 1 , characterized in that the output gears (22, 24) are fixedly arranged in the direction (x1, x2) parallel to an output rotation axis (a2).
  3. Air outlet (10) according to one of the preceding claims, characterized in that the movement of the output gears (22, 24) is inhibited by frictional means relative to the output axis of rotation (a2).
  4. Air outlet (10) according to one of the preceding claims, characterized in that at least one first functional device is designed as an air deflection device (44, 45), in particular designed with at least one movable lamella (16, 17), wherein the lamella (16, 17) can be driven by the first output gear (22).
  5. Air outlet (10) according to one of the preceding claims, characterized in that the second functional device is designed as an air deflection device (44, 45), in particular with at least one movable lamella (16, 17), wherein the lamella (16, 17) can be driven by the second output gear (24).
  6. Air outlet (10) after Claim 4 or 5 , characterized in that a control device is provided with which at least the air deflection devices (44, 45) of the air outlet (10) can be controlled.
  7. air outlet (10) after one of the Claims 4 until 6 , characterized in that the first air deflection device (44) and/or the second air deflection device (45) has a synchronization device with which the vanes (16, 17) of the air deflection device (44, 45) are moved synchronously.
  8. Air outlet (10) according to one of the preceding claims, characterized in that a control device is provided with which the direction of rotation (u1, u2) of the drive shaft (19) can be manually controlled in an operating mode.
  9. Air outlet (10) according to one of the preceding claims, characterized in that at least one further output gear (22) can be moved into engagement with the drive gear (21).
  10. Vehicle interior comprising at least one air outlet (10) according to one of the preceding claims.

Description

The invention relates to an air outlet for a vehicle. Such an air outlet is in the DE 10 2020 133 649 A1 The system is described. It comprises a chamber into which an airflow is supplied via an air inlet, and the airflow is discharged into the vehicle interior via at least one air outlet. Two movable ventilation grilles with vertically and horizontally arranged louvers are associated with the air outlet. Each ventilation grille has a drive unit with an electric motor and a mechanical transmission for pivoting the louvers. The transmission comprises a first drive with a first drive gear, which is fixed on the motor shaft of an electric motor, and two axially movable output gears that are rotatably connected and axially spaced apart. This space corresponds to the width of a rack with which the output gears engage. The rack moves the clutch plates in one direction. All gears are helical. When the drive gear moves in a first direction, the output gears are axially displaced against the force of a first spring, so that a first gear engages with the drive gear and engages with the rack. The rack is driven in a first direction. An opposite movement of the drive gear causes the output gears to be axially displaced in the opposite direction against the force of a second spring, so that the drive gear and the rack engage with a second output gear. The rack is driven in a second direction. The second ventilation grille is moved by a similarly designed drive. Furthermore, air vents are located in the JP 2005- 55 061 A , the CN 111 055 658 A , the DE 10 2018 005 002 A1 and the US 2022 / 0 145 970 A1 described. According to a first aspect, the object of the invention is to design an air outlet with a drive that enables a saving in the cost of parts as well as in the installation space. The problem is solved by an air outlet having the features of claim 1. The air outlet according to the invention is intended for a vehicle. For the purposes of the application, a vehicle is a land, air, or water vehicle. The air outlet comprises an air inlet, an air outlet, and at least one movable first functional device and one movable second functional device. The first functional device can, for example, be a first air deflector comprising at least one lamella whose longitudinal center axis is oriented approximately horizontally. The second functional device can, for example, be a second air deflector comprising at least one lamella whose longitudinal center axis is oriented approximately vertically. A functional device is, for example, a device that provides certain functions of the air outlet and has at least one movable part that can be moved by a drive device of the air outlet. The air outlet includes a drive device for powering the first and second functional devices. The drive device is equipped with a drive shaft that can rotate in opposite directions around a geometric drive axis, which drives a helical drive gear in opposite directions. The air outlet further comprises a first output gear with helical teeth on a geometric first output axis of rotation and a second output gear with helical teeth on a geometric second output axis of rotation for driving the first and second functional devices of the air outlet. The drive gear is rotationally fixed to the drive shaft and is movable in directions parallel to the drive axis of rotation of the drive shaft. The movement of the drive gear with respect to a first direction of movement and with respect to a second direction of movement parallel to the drive shaft is limited by at least two stops. These stops are, for example, end stops of the movement. The drive axis of rotation and the output axes of rotation are, for example, parallel to each other. The stopping mechanism for the respective output gears should be such that it prevents the output gears from rotating before the input gear moves into contact with the first or second stop and thus reaches its end position. This stopping mechanism can be achieved, for example, by a downstream mechanism or by stopping devices such as springs and/or dampers. The air outlet according to the invention comprises a drive device with which at least one first functional device and a second functional device can be driven. More than two functional devices, e.g., three or four functional devices, can also be driven. According to the invention, the output rotary axes can be spaced apart from one another, which allows for a flexible design. The air outlet requires little installation space, and the number of parts is reduced compared to air outlets of the prior art. The output gears are fixedly arranged, for example, parallel to the output axis of rotation. Each of the first and second output gears can be driven by the axial positioning of the drive gear. The direction of rotation of the drive gear determines whether it is positioned against the first or the second output gear. At least two stops position the drive gear so that it is engaged with eith