Refrigerating and freezing device

A refrigerating and freezing device, comprising:

• a cabinet, wherein at least one storage compartment is defined therein, and a heating cavity configured to contain a to-be-processed object is defined in one of the at least one storage compartment;
• and
• an electromagnetic heating device, configured to supply electromagnetic waves into the heating cavity so as to heat the to-be-processed object in the heating cavity, wherein the electromagnetic heating device comprises an electromagnetic generation module configured to produce an electromagnetic wave signal and a power supply module configured to supply a power source to the electromagnetic generation module, wherein
• a power supply box is provided above a top of the cabinet, and heat dissipation holes configured to achieve communication between the interior of the power supply box and an external environment where the power supply box is located are provided in a box body of the power supply box;
• and
• the power supply module is disposed in the power supply box, a heat dissipation fan is further provided in the power supply box and is configured to drive airflow to flow between the interior of the power supply box and the external environment where the power supply box is located through the heat dissipation holes, so as to dissipate heat from the power supply module, wherein
• a storage device with a cylinder and a door is placed in one of the at least one storage compartment, and the heating cavity is formed in the storage device;
• and
• the electromagnetic heating device further comprises a radiation antenna and a signal processing and measurement control circuit which are disposed in the cylinder, the radiation antenna is electrically connected with the signal processing and measurement control circuit, and the electromagnetic generation module is electrically connected with the signal processing and measurement control circuit and then is electrically connected with the radiation antenna.