Drive device for activating a rotary slide

Patent metadata

Field	Value
Publication number	US-11879563-B2
Application number	US-202117245513-A
Country	US
Kind code	B2
Filing date	Apr 30, 2021
Priority date	Apr 30, 2020
Publication date	Jan 23, 2024
Grant date	Jan 23, 2024

Abstract

The invention relates to a drive device for activating a rotary slide for a fluid system of an at least in part electrically operated motor vehicle. The drive device comprises an electric motor having a motor output shaft, a rotary slide output shaft configured for activating a rotary slide, wherein the rotary slide output shaft is aligned so as to be orthogonal to the motor output shaft, and a magnet is disposed on an end region of the rotary slide output shaft, and a sensor unit which is configured for detecting a rotary position of the magnet and thus of the rotary slide output shaft.

First claim

The invention claimed is:

1. A drive device for activating a rotary slide for a fluid system of an at least in part electrically operated motor vehicle, the drive device comprising:
a housing;
an electric motor comprising a motor output shaft and arranged within the housing;
a rotary slide output shaft configured for activating a rotary slide and arranged within the housing and aligned so as to be orthogonal to the motor output shaft;
a magnet arranged on an end region of the rotary slide output shaft;
a sensor unit arranged within the housing and configured to detect a rotary position of the magnet and the rotary slide output shaft; and
wherein the sensor unit is arranged on a control unit;
wherein the rotary slide output shaft is held by means of a housing-proximal bearing configured to be tongue-shaped and arranged substantially on a side of the first gear wheel axle facing away from the second gear wheel axle; and
wherein the control unit is arranged between a face-proximal end of the rotary slide output shaft and the housing-proximal bearing.

2. The drive device according to claim 1 , wherein the sensor unit is arranged axially spaced apart from the face-proximal end of the rotary slide output shaft.

3. The drive device according to claim 2 , wherein the sensor unit is arranged on the control unit.

4. The drive device according to claim 2 , wherein the rotary slide output shaft is held by means of the housing-proximal bearing.

5. The drive device according to claim 2 , wherein
the drive device comprises a gearbox arranged and configured to transmit a torque of the motor output shaft to the rotary slide output shaft,
a first gear wheel axle and a second gear wheel axle of the gearbox are arranged in, and
the rotary slide output shaft comprises the first gear wheel axle.

6. The drive device according to claim 1 , wherein:
the drive device comprises a gearbox arranged and configured to transmit a torque of the motor output shaft to the rotary slide output shaft,
a first gear wheel axle and a second gear wheel axle of the gearbox are arranged in parallel,
the rotary slide output shaft comprises the first gear wheel axle, and
the tongue-shaped bearing is a wall of a partial cylinder or a partial tube wall.

7. The drive device according to claim 1 , wherein the housing-proximal bearing extends through a contour of the control unit.

8. The drive device according to claim 1 , wherein the electric motor is a brushless stepper motor comprising axially disposed coils.

9. The drive device according to claim 1 , wherein the sensor unit comprises a 3D Hall sensor.

10. The drive device according to claim 1 , wherein the control unit is arranged orthogonal to the first gear wheel axle and to the second gear wheel axle.

11. The drive device according to claim 1 , wherein the drive device and the control unit are arranged in a fluidically sealed housing.

12. The drive device according to claim 11 , wherein the housing comprises a bulkhead arranged and configured to fluidically seal the control unit and the electric motor in relation to a housing portion that is able to be passed through by a fluid flow.

13. The drive device according to claim 1 , wherein the drive device comprises an interface configured to connect to an external control apparatus.

14. The drive device according to claim 1 , wherein the gearbox is configured to run wet.

Assignees

• ECO Holding 1 GmbH

Inventors

• Mudra Alexander
• Dehrmann Sven
• Möhring Jens

Classifications

• F16K31/047 Primary

  characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means (F16K31/043 takes precedence) · CPC title

• F16K3/30

  Details · CPC title

• F16K31/046

  with electric means, e.g. electric switches, to control the motor or to control a clutch between the valve and the motor (F16K31/041 takes precedence) · CPC title

• F16K31/53

  with toothed gearing · CPC title

• F16K37/0041

  for measuring valve parameters (F16K37/0033 takes precedence) · CPC title