| abstract |
A refrigerator, comprising: a door for opening and closing a storage compartment; a thermoelectric element module for cooling the storage compartment; a defrosting temperature sensor, arranged in the thermoelectric element module, for detecting the temperature of the thermoelectric element module ; and a control part for controlling the output of the thermoelectric element module, the thermoelectric element module comprising: a thermoelectric element having a heat absorption part and a heat dissipation part; a first heat sink in contact with the heat absorption part is configured to perform heat exchange with the inner side of the storage compartment; a first fan is arranged opposite to the first radiator for generating wind to promote heat exchange of the first radiator; a second radiator a second fan, arranged in contact with the heat radiator, to exchange heat with the outside of the storage compartment; and a second fan, arranged opposite to the second radiator, for generating wind to promote the For the heat exchange of the second radiator, the control unit starts a natural defrosting operation for removing the frost adhering to the thermoelectric element module at every preset cycle according to the accumulated time. When the temperature of the thermoelectric element module measured by the sensor reaches the reference defrosting end temperature, the control part ends the natural defrosting operation, and determines that the preset period for starting the natural defrosting operation is based on the door When the natural defrosting operation is started, the thermoelectric element stops running, the first fan continues to rotate, the second fan stops temporarily, and after a preset time elapses Rotate again. |