Control unit for a household appliance

1. A control unit for a household or domestic appliance, comprising:

a control device;

regulating devices coupled to said control device for adjusting different operating states of said control device;

a first one of said regulating devices operated by a control element removable from the control unit;

a second one of said regulating devices adjusting the operating state of said control device for a normal operating mode operated by said removable control element and for an alternative operating mode operated without said removable control element;

said regulating devices include a changeover regulating device acting on said control device via a blocking device to switch over said control device into said alternative operating mode when said blocking device is released; and

said second regulating device and said change-over regulating device are constructed as contact switches.

2. The control unit according to claim 1 , including said second regulating device functions as said change-over regulating device.

3. The control unit according to claim 1 , including the appliance including a plurality of working areas and a pre-selector switch, said second regulating device also functioning to actuate said pre-selector switch for selecting one of said plurality of working areas, said working area operating state can then be adjusted to said normal operating mode by said first regulating device and can also be adjusted to said alternative operating mode by said second regulating device.

4. The control unit according to claim 1 , including a third regulating device serving as said change-over regulating device.

5. The control unit according to claim 4 , including an appliance main switch and a control unit sensor and said third regulating device also functioning for locking and unlocking said main switch, said control unit sensor functioning as said change-over regulating device to switchover said regulating function to said alternative operating mode on removal of said control element.

6. The control unit according to claim 1 , including said blocking device including a time switch which functions to release said blocking device after a predetermined time period of actuation of said change-over regulating device has elapsed.

7. The control unit according to claim 1 , including a control unit sensor which prevents switchover into said alternative operating mode as long as said control element is not removed from said control unit.

8. The control unit according to claim 1 , including an appliance main switch and a control unit sensor, said control unit sensor functioning as said change-over regulating device to switchover said regulating function to said alternative operating mode on removal of said control element and further to switch off said main switch during said switchover and to switch on said main switch when said blocking device is released.

9. The control unit according to claim 1 , including a signal transmitter coupled to said control device for delivering at least one of a light or a sound signal when said blocking device is released.

10. The control unit according to claim 9 , including said signal transmitter is an electroluminescent display for displaying an operating state and when said blocking device is released flashes a light signal indicating said alternative operating mode.

11. The control unit according to claim 10 , including said second regulating device including an actuating area and said electroluminescent display is spatially arranged adjacent to said actuating area.

12. The control unit according to claim 1 , including a plurality of working areas, including at least one hot plate, and said first regulating device adjusts the operating area of at least one of said working areas.

13. The control unit according to claim 1 , including said first regulating device is a single regulating device including said removable control element.

14. The control unit according to claim 1 , including an appliance main switch which is actuated at least for switching off in said alternative operating mode.

15. The control unit according to claim 14 , including an interlocking device coupled to said main switch, which interlocking device also is actuated in said alternative operating mode.