Baking oven

• US 20050011511A1
• Filed: 07/23/2004
• Published: 01/20/2005
• Est. Priority Date: 01/23/2002
• Status: Active Grant

• Current Assignee: BSH Hausgeraete GmbH (Robert Bosch GmbH)
• Original Assignee: BSH Bosch und Siemens Hausgerã¤Te GmbH (Robert Bosch GmbH)
• Inventors: Uglorz, Helmut, Has, Uwe, Ulmer, Michael, Lappat, Hans
• Granted Patent: US 7,717,106 B2
• Time in Patent Office: Days
• US Class Current: 126/213
• CPC Class Codes: F24C 15/008 Illumination for oven cavities

Abstract

A baking oven containing a lighting device for lighting the cooking area and a lighting control device for controlling the on/off states and time profiles of the lighting device. The lighting control device has at least two pre-determined time profiles for determining the lighting intensity of the lighting device according to the operation leading to the switching on of the lighting device.

Claims

1-15. -15. (canceled)

16. A baking oven, comprising:

a cooking area including a door in an opening of said cooking area;

said door including a handle to open and close said door;

a lighting device for lighting said cooking area producing a lighting intensity;

a lighting control device coupled to said lighting device for switching on, holding the switched-on state and switching off said lighting device in accordance with a pre-determined time profile which defines the increasing, holding and reducing said lighting intensity;

said lighting control device includes at least two different pre-determined time profiles for increasing, holding and reducing said lighting intensity; and

said lighting control device utilizes one of said pre-determined time profiles depending upon the type of operation leading to the switching on of said lighting device.

17. The baking oven according to claim 16, including said two different pre-determined time profiles have differences in the increasing of said lighting intensity from a minimum value to a maximum value.

18. The baking oven according to claim 16, including said two different pre-determined time profiles have differences in the reducing of said lighting intensity from a maximum value to a minimum value.

19. The baking oven according to claim 16, including said two different pre-determined time profiles have differences in the holding of said lighting intensity.

20. The baking oven according to claim 16, including said two different pre-determined time profiles have differences in the rising ramp of the increase and/or in the falling ramp of the decrease and/or in the value of said lighting intensity in the increased and/or the reduced state.

21. The baking oven according to claim 16, including a door opening signal element providing a signal of the opening of said door to said lighting control device, said door opening signal element can be actuated by at least one of said door position and said door handle which can be actuated manually to open said door.

22. The baking oven according to claim 21, including said lighting control device switches on said lighting device in response to receiving said door opening signal from said door opening signal element which signals an opening of said door and said lighting control device increases said lighting intensity from a minimum value to a maximum value at a fast rate.

23. The baking oven according to claim 16, including said lighting control device reduces said lighting intensity from a maximum value to a minimum value after a pre-determined holding time period during which said lighting intensity is held to said maximum value after said lighting control device is switched on, said pre-determined holding time period beginning when said maximum value is reached and running automatically if said cooking door is not opened during said holding time period and stopping running if said cooking door is opened during said holding time period and said lighting control device starting again said holding time period after said door is closed.

24. The baking oven according to claim 23, including said lighting control device reduces said lighting intensity from a maximum value to a minimum value at a very slow or slow rate depending on a lighting intensity time ramp of said time profile.

25. The baking oven according to claim 21, including said lighting control device distinguishes whether said door opening signal element is actuated manually for a pre-determined long first minimum time period indicating a opening of said door or that said door opening signal element is actuated manually for a pre-determined short second minimum time period indicating that a person wishes to switch on said lighting device without opening said door, said pre-determined long first minimum time period causes said lighting intensity to increase at a fast or very fast rate with a steep rising ramp or abruptly and said lighting intensity is reduced when said lighting device at a slow or very slow rate with a flat falling ramp time profile and said pre-determined short second minimum time period causes said lighting intensity to increase from a minimum value at a moderate or fast rate on a rising ramp or abruptly and then held for a short minimum time period at said maximum value and then said lighting intensity is reduced at a fast rate on a ramp or abruptly from said maximum value to said minimum value.

26. The baking oven according to claim 16, including one or a plurality of function switches which can respectively one cooking area heating function can be switched on by a person and said lighting control device has a pre-determined time profile for increasing, holding and reducing said lighting intensity of said cooking area lighting device.

27. The baking oven according to claim 16, including said time profiles are stored in said lighting control device or can be generated by said lighting control device utilizing a computer program stored therein depending upon the type of operation by which said lighting device is switched on.

28. The baking oven according to claim 21, including said door opening signal element of said door handle is a contact sensor which can be actuated by manual contact.

29. The baking oven according to claim 16, including at least one of said two different pre-determined time profiles has a lighting intensity time increasing ramp for increasing and/or a lighting intensity time ramp for reducing said lighting intensity.

30. The baking oven according to claim 16, including at least one of said two different pre-determined time profiles has a lighting intensity held at a lower value (max/x) compared with the maximum value (max), which lies above zero, fro permanent lighting in said cooking area.