Dishwasher and the Control Method

Abstract

The present invention relates to a dishwasher ( 1 ) wherein the irritating odor that dissipates as the result of long keeping of the dirty dishes in the tub ( 2 ) with the door closed between two consecutive operations like operating the dishwasher once a week, is prevented and a control method thereof.

1 . A dishwasher ( 1 ) comprising a tub ( 2 ) into which dishes to be washed are placed, a sump ( 3 ) where wash water is collected, a heater ( 4 ) utilized to heat the wash water, a circulation pump ( 5 ) which provides the circulation of the wash water, a discharge pump ( 6 ) which drains the wash water at the end of the washing process and characterized by an odor eliminating washing program (B) started by the user or automatically when the level of odor increases, preventing the dishes to be washed from producing heavy odors.  
     
     
         2 . A dishwasher ( 1 ) as in  claim 1  characterized by a starting button ( 8 ) which allows the user to start the odor eliminating washing program (B).  
     
     
         3 . A dishwasher ( 1 ) as in  claim 1 , characterized by an odor detector ( 9 ) which detects the odor spreading from the dishes in the tub ( 2 ).  
     
     
         4 . A dishwasher ( 1 ) as in  claim 3 , characterized by an indicator ( 11 ) which gives off an audio and/or visual warning when the odor amount detected by the odor detector ( 9 ) exceeds a preset limit.  
     
     
         5 . A dishwasher ( 1 ) as in  claim 3 , characterized by a measuring chamber ( 10 ) where the odor detector ( 9 ) is situated, suitable for gathering a measurable amount of sample from the medium air.  
     
     
         6 . A dishwasher ( 1 ) as in any one of the above claims characterized by an odor eliminating substance chamber ( 12 ) into which odor eliminating chemical substances are put.  
     
     
         7 . A dishwasher ( 1 ) as in  claim 4 , characterized by a control unit ( 7 ) which enables the indicator ( 11 ) to give off an audio and/or visual warning when the odor amount detected by the odor detector ( 9 ) exceeds a preset limit.  
     
     
         8 . A dishwasher ( 1 ) as in any one of the  claims 3  to  7 , characterized by a control unit ( 7 ) which automatically starts the odor eliminating washing program (B) when the odor amount detected by the odor detector ( 9 ) exceeds a preset limit.  
     
     
         9 . A dishwasher ( 1 ) as in  claim 8 , characterized by a control unit ( 7 ) which has information on time periods of expensive and cheap rates of electric consumption costs and starts the odor eliminating washing program (B) in the cheap rate time period.  
     
     
         10 . A dishwasher ( 1 ) as in  claim 9 , characterized by a control unit ( 7 ) which comprises a clock circuit ( 13 ) having timing information.  
     
     
         11 . A dishwasher ( 1 ) as in  claim 6 , characterized by the employment of an odor eliminating washing program (B) comprising the steps of taking in water into the sump ( 3 ), opening the odor eliminating substance chamber ( 12 ) to mix the odor eliminating substance into the wash water, heating the wash water to a low temperature by the heater ( 4 ), circulating with the circulation pump ( 5 ) and draining the wash water with the discharge pump ( 6 ).