DOMESTIC DISHWASHER WITH A SORPTION DRYING DEVICE AND CORRESPONDING METHOD

• US 20110146718A1
• Filed: 08/07/2009
• Published: 06/23/2011
• Est. Priority Date: 08/27/2008
• Status: Active Grant

• Current Assignee: BSH Hausgeraete GmbH (Robert Bosch GmbH)
• Original Assignee: BSH Bosch und Siemens Hausgerã¤Te GmbH (Robert Bosch GmbH)
• Inventors: Wolf, Christian, Heidel, Andreas, Kränzle, Bernd
• Granted Patent: US 9,610,003 B2
• Time in Patent Office: Days
• US Class Current: 134/18
• CPC Class Codes: A47L 15/0034 Drying phases, including dripping-off phases
• CPC Class Codes: A47L 15/0049 Detection or prevention of malfunction, including accident prevention arrangements to prevent clogging of filters A47L15/4208; safety arrangements for preventing water damage A47L15/421
• CPC Class Codes: A47L 15/46 Devices for the automatic control of the different phases of cleaning ; Controlling devices A47L15/449 takes precedence
• CPC Class Codes: A47L 15/481 by using water absorbent materials, e.g. Zeolith
• CPC Class Codes: A47L 2401/18 Air temperature
• CPC Class Codes: A47L 2401/30 Variation of electrical, magnetical or optical quantities
• CPC Class Codes: A47L 2501/11 Air heaters
• CPC Class Codes: A47L 2501/12 Air blowers

Abstract

A domestic dishwasher is provided, which has a main controller, a sorption drying device, and an additional controller to specifically control an electrical component of the sorption drying device.

Claims

1-19. -19. (canceled)

20. A domestic dishwasher, comprising:

a main controller;

a sorption drying device having at least one electrical component; and

an additional controller to specifically control the at least one electrical component of the sorption drying device.

21. The domestic dishwasher of claim 20, wherein the additional controller is a component of the main controller.

22. The domestic dishwasher of claim 20, wherein the additional controller is a separate functional component and spatially separated from the main controller.

23. The domestic dishwasher of claim 22, wherein the additional controller is spatially separated from the main controller by a predetermined spatial distance.

24. The domestic dishwasher of claim 22, wherein the additional controller is arranged at a minimum distance from the sorption drying device.

25. The domestic dishwasher of claim 20, further comprising:

a washing container having a base; and

a base module below the base of the washing container;

wherein at least one of the main controller and the additional controller are accommodated in the base module below the base of a washing container.

26. The domestic dishwasher of claim 20, wherein the sorption drying device has a sorption container with reversibly dehydratable sorption material.

27. The domestic dishwasher of claim 26, wherein the sorption drying device has at least one of a fan and a heater assigned to the sorption container as the electrical components.

28. The domestic dishwasher of claim 27, wherein the additional controller is assigned to the at least one of the fan and the heater of the sorption drying device in order to at least one of supervise and set an operating parameter.

29. The domestic dishwasher of claim 20, further comprising a control line to connect the additional controller to the main controller.

30. The domestic dishwasher of claim 29, wherein the additional controller has watchdog supervision logic to check the functional integrity of the control line during activation of the sorption drying device in at least one of a respective sorption drying process and desorption process.

31. The domestic dishwasher of claim 30, wherein the main controller consecutively sends the watchdog supervision logic of the additional controller a plurality of switch-on commands over the control line.

32. The domestic dishwasher of claim 31, wherein the main controller cyclically repeats at least one of the plurality of switch-on commands.

33. The domestic dishwasher of claim 31, wherein the watchdog supervision logic of the additional controller has one of a clock and a timer which determines an upper limit for a wait time between respective receive clock times of each two consecutively-sent switch-on commands.

34. The domestic dishwasher of claim 33, wherein the watchdog supervision logic of the additional controller monitors whether the upper limit for the wait time without receipt of a next switch-on command is exceeded.

35. The domestic dishwasher of claim 34, wherein the additional controller switches off the at least one electrical component of the sorption drying device if the watchdog supervision logic determines that the upper limit for the wait time without receipt of the next switch-on command is exceeded.

36. The domestic dishwasher of claim 30, further comprising sorption material;

wherein the sorption drying device has a heater; and

wherein the watchdog supervision logic of the additional controller is activated for supervision of the functional integrity of the control line if the heater is switched on for desorbing the sorption material.

37. The domestic dishwasher of claim 20, wherein the sorption drying device has a fan and a heater;

and wherein, only after a predetermined run-on time has elapsed, the additional controller switches off the fan of the sorption drying device after the heater of the sorption drying device has been switched off.

38. The domestic dishwasher of claim 20, further comprising a washing container;

wherein the sorption drying device has a sorption container; and

wherein the additional controller switches off the sorption drying device, if a critical limit temperature is exceeded in at least one of the interior of the washing container and the area of the sorption container.

39. The domestic dishwasher of claim 38, wherein the sorption drying device has at least one of a heater and a fan;

wherein the additional controller switches off the at least one of the heater and the fan if the critical limit temperature is exceeded in the at least one of the interior of the washing container and the area of the sorption container.

40. The domestic dishwasher of claim 20, wherein the additional controller switches off the sorption drying device, if a critical characteristic value of an electrical energy supply network, with which at least one of the main controller and the additional controller is actively connected, is exceeded in at least one of a respective sorption process and a desorption process.

41. The domestic dishwasher of claim 40, wherein the sorption drying device has at least one of a heater and a fan;

wherein the additional controller switches off the heater and the fan of the sorption drying device if the critical characteristic value of the electrical energy supply network, with which the at least one of the main controller and the additional controller is actively connected, is exceeded in the at least one of a respective sorption process and a desorption process.

42. The domestic dishwasher of claim 40, wherein the critical characteristic value is at least one of a main voltage deviation and a mains frequency deviation of the electrical energy supply network.

43. A method for controlling a sorption drying device of a domestic dishwasher having a main controller, the method comprising:

specifically controlling an electrical component of the sorption drying device with an additional controller.