WATER-CARRYING HOUSEHOLD APPLIANCE HAVING AN AUTOMATIC DOSING SYSTEM, AND METHOD FOR AUTOMATIC DOSING

• US 20110186098A1
• Filed: 09/30/2009
• Published: 08/04/2011
• Est. Priority Date: 10/07/2008
• Status: Active Grant

• Current Assignee: BSH Hausgeraete GmbH (Robert Bosch GmbH)
• Original Assignee: BSH Bosch und Siemens Hausgerã¤Te GmbH (Robert Bosch GmbH)
• Inventors: Sabalat, Andre, Hasse, Torsten, Schulze, Ingo
• Granted Patent: US 9,334,602 B2
• Time in Patent Office: Days
• US Class Current: 134/56.R
• CPC Class Codes: D06F 33/37 of metering of detergents or additives
• CPC Class Codes: D06F 39/022 in a liquid state D06F39/024 takes precedence

Abstract

A water-carrying household appliance is provided that has a housing; a treatment chamber; and an automatic dosing system within the housing. The automatic dosing system has a reservoir for a liquid treatment agent and a delivery pump within the reservoir. The household appliance further includes a controller to control the automatic dosing system.

Claims

1-19. -19. (canceled)

20. A water-carrying household appliance, comprising:

a housing;

a treatment chamber;

an automatic dosing system within the housing, the automatic dosing system having;

a reservoir for a liquid treatment agent; and

a delivery pump within the reservoir; and

a controller to control the automatic dosing system.

21. The water-carrying household appliance of claim 20, wherein the automatic dosing system has a manual dosing chamber.

22. The water-carrying household appliance of claim 20, wherein the automatic dosing system has two reservoirs.

23. The water-carrying household appliance of claim 20, wherein the automatic dosing system is arranged in a detachable manner within the housing, and wherein the automatic dosing system is removeable from the housing.

24. The water-carrying household of claim 20, wherein the delivery pump is arranged in a detachable manner within the reservoir, and wherein the delivery pump is removable from the reservoir.

25. The water-carrying household appliance of claim 20, wherein the delivery pump is an immersion pump.

26. The water-carrying household appliance of claim 20, wherein the reservoir has a removable lid.

27. The water-carrying household appliance of claim 26, wherein the delivery pump is connected to the removable lid.

28. The water-carrying household appliance of claim 27, further comprising a plurality of delivery pumps, wherein each of the plurality of delivery pumps is removable individually.

29. The water-carrying household appliance of claim 20, wherein the household appliance is a washing machine having a treatment agent drawer, and wherein the automatic dosing system is in the treatment agent drawer.

30. The water-carrying household appliance of claim 29, wherein the automatic dosing system has a manual dosing chamber and two reservoirs.

31. The water-carrying household appliance of claim 20, wherein the delivery pump has a suction side, which is positioned in the interior of the reservoir, and a delivery side, which opens into an outlet duct.

32. The water-carrying household appliance of claim 20, wherein the delivery pump is a gear pump.

33. The water-carrying household appliance of claim 20, wherein the delivery pump has a direct current drive.

34. The water-carrying household appliance of claim 33, wherein the direct current drive is operated in a low-voltage range.

35. A method for automatic dosing of a treatment agent in a water-carrying household appliance having a housing;

a treatment chamber;

an automatic dosing system within the housing, wherein the automatic dosing system has a reservoir for a liquid treatment agent, and a delivery pump within the reservoir; and

a controller to control the automatic dosing system;

the method comprising;

i) determining a type and a desired quantity of the liquid treatment agent to be dosed;

ii) driving the delivery pump assigned to the liquid treatment agent to be dosed;

iii) determining a supplied actual quantity of the liquid treatment agent to be dosed during step ii);

iv) comparing the supplied actual quantity of the liquid treatment agent with the desired quantity determined in step i); and

v) switching off the delivery pump when the desired quantity determined in step i) is reached.

36. The method of claim 35, wherein the delivery pump has a rotationally operated delivery unit, and wherein in step iii) the supplied actual quantity of the liquid treatment agent is detected by measuring rotations of the delivery unit of the delivery pump.

37. The method of claim 36, wherein a number of the rotations of a direct current drive is measured in step iii).

38. The method of claim 37, wherein the number of the rotations of a pump drive is determined from a signal profile of the pump drive.