Refrigerator Unit and/or Freezer Unit

Abstract

The invention relates to a refrigerator unit and/or a freezer unit having a space for the reception of the refrigerated goods or frozen goods, having a fan which removes air from the space, blows air into the space or circulates the air in the space and having a control unit connected to the fan which controls the fan for the purpose of influencing the temperature distribution such that it is operated in one rotary direction in a first operating state and in the other rotary direction in a second operating state. The invention further relates to a method of operating a refrigerator unit and/or a freezer unit.

1 . A refrigerator unit and/or a freezer unit having a space for the reception of the refrigerated goods or frozen goods, comprising:
 a fan which removes air from the space, blows air into the space or circulates the air in the space; and   a control unit connected to the fan which controls the fan, the control unit influencing a temperature distribution in the space such that the fan is operated in one rotary direction in a first operating state and in another rotary direction in a second operating state.   
     
     
         2 . The refrigerator unit and/or a freezer unit in accordance with  claim 1 , wherein a duration of the first and/or second operating state is preset. 
     
     
         3 . The refrigerator unit and/or a freezer unit in accordance with  claim 2 , further comprising at least one temperature sensor for the determination of an actual temperature value; and wherein the control unit selects the operating state in dependence on the actual temperature value, and where the actual temperature includes, an actual temperature value of the space. 
     
     
         4 . The refrigerator unit and/or a freezer unit in accordance with  claim 3 , wherein the temperature sensor(s) is/are arranged in the space or at an evaporator of the unit. 
     
     
         5 . The refrigerator unit and/or a freezer unit in accordance with  claim 1 , wherein the space X is divided into a plurality of compartments; and at least one temperature sensor is arranged in one, several or all compartments. 
     
     
         6 . The refrigerator unit and/or a freezer unit in accordance with  claim 1 , wherein the unit further comprises at least two temperature zones. 
     
     
         7 . The refrigerator unit and/or a freezer unit in accordance with  claim 6 , wherein one temperature zone is formed by one or more refrigerated compartments and a further temperature zone is formed by one or more cold storage compartments. 
     
     
         8 . The refrigerator unit and/or a freezer unit in accordance with  claim 7 , wherein the control unit controls the fan in dependence on a plurality of actual temperature values, in particular on the actual temperature values of the plurality of compartments. 
     
     
         9 . The refrigerator unit and/or a freezer unit in accordance with  claim 8 , wherein the control unit controls the rotary direction is changed when a desired temperature value is exceeded and/or fallen below or when a desired temperature range is left and/or reached. 
     
     
         10 . A method of operating a refrigerator unit and/or a freezer unit having a space for the reception of the refrigerated goods and/or the frozen goods, having a fan which removes air from the space or blows air into the space or circulates the air in the space, comprising:
 operating the fan with different rotary directions depending on an operating state of the unit to influencing a temperature distribution in the space.   
     
     
         11 . The method in accordance with  claim 10 , wherein the fan is operated in one of a first or second rotary direction for a specific duration. 
     
     
         12 . The method in accordance with  claim 10 , wherein a selection of a rotary direction of the fan depends upon a measured value, wherein the selection of the rotary direction of the fan depends on an actual temperature value of the space. 
     
     
         13 . The method in accordance with  claim 12 , wherein the unit has a plurality of compartments; and where the selection of the rotary direction of the fan depends on an actual temperature value of one, several or all compartments. 
     
     
         14 . The method in accordance with  claim 13 , wherein the unit has at least one refrigerator compartment and at least one cold storage compartment; and wherein the rotary direction of the fan depends on an actual temperature value measured in the refrigerator compartment and/or in the cold storage compartment. 
     
     
         15 . The method in accordance with  claim 14 , wherein the refrigerator unit and/or freezer unit has an evaporator for air cooling; and wherein the rotary direction of the fan is set such that the air is conveyed from the evaporator (into the cold storage compartment when the cold storage compartment temperature exceeds a limit value; and the air is conveyed from the evaporator into the refrigerator compartment when the refrigerator compartment temperature exceeds a limit value. 
     
     
         16 . The method in accordance with  claim 14 , wherein the refrigerator unit and/or freezer unit has an evaporator for air cooling; and when the actual cold storage compartment temperature as well as the actual refrigerator compartment temperature exceed limit values, the rotary direction of the fan is first set such that the air is conveyed from the evaporator into the cold storage compartment or into the refrigerator compartments; and the rotary direction of the fan wheel is reversed when the desired value or a desired value range of the temperature of this compartment is reached so that the air is conveyed from the evaporator into the other of the compartments. 
     
     
         17 . The refrigerator unit and/or a freezer unit in accordance with  claim 1 , wherein a duration of the first and/or second operating state depends on a measured value. 
     
     
         18 . The method in accordance with  claim 10 , wherein the rotary direction depends on a measured value. 
     
     
         19 . A method of operating a refrigerator unit and/or a freezer unit having a space for the reception of the refrigerated goods and/or the frozen goods, and having a fan which removes air from the space or blows air into the space or circulates the air in the space, and further having an evaporator for air cooling, the unit having at least a refrigerator compartment and a cold storage compartment, comprising:
 operating the fan in a first rotary direction to convey the air from the evaporator into at least one of the cold storage compartment or into the refrigerator compartment when a cold storage compartment temperature and a refrigerator compartment temperature exceed limit values; and   operating the fan in a second, reverse, rotary direction to convey air from the evaporator into the other of the compartments when a desired temperature value of the at least one compartment is reached.