REFRIGERATOR Russian patent published in 2010 - IPC F25D17/08 F25D11/02 

FIELD: heating.

SUBSTANCE: refrigerator includes circulation circuit which is provided with possibility of providing the air circulation through cooling device, channel and freezing chamber; cooling device cools the air to temperature not less than freezing temperature; channel directs cooled air to freezing chamber; air in freezing chamber returns to cooling device, cooled with it and is directed to the channel; the hole which is formed in the part of channel and provided with possibility of ensuring the connection to refrigerating chamber; damper mechanism which is located at the hole and provided with possibility of opening and closing the hole; motor is provided with possibility of opening and closing the hole with damper mechanism; controller which is provided with possibility of motor control in one of the first and second modes. In the first mode, the damper mechanism retains the hole in one of the open and closed conditions; in the second mode, electric current is supplied to motor winding so that winding generates heat, thus not making the damper mechanism to perform the action on opening/closing the hole.

EFFECT: reliability of opening and closing the damper mechanism.

9 cl, 8 dwg