Heating device and refrigerator with heating device

A heating device configured to heat an object to be processed with electromagnetic waves, comprising:

• a cylinder body, provided with a pick-and-place opening and configured to place the object to be processed;
• a door body, disposed at the pick-and-place opening and configured to open and close the pick-and-place opening;
• and
• a radiating antenna, arranged in the cylinder body and configured to radiate the electromagnetic waves, wherein the heating device further comprises:
• a signal processing and measurement and control circuit, disposed at a rear lower part in the cylinder body, wherein the signal processing and measurement and control circuit is integrated on a circuit board;
• and
• wherein the heating device further comprises:
• a drawer for carrying the object to be processed disposed in the cylinder body;
• and
• a housing, disposed under a bottom wall of the drawer and configured to separate an inner space of the cylinder body into a heating chamber and an electrical appliance chamber under the heating chamber, wherein the object to be processed and the circuit board are respectively disposed in the heating chamber and the electrical appliance chamber;
• wherein a rear part of the bottom wall of the drawer and a rear part of the housing are both recessed upward to form an accommodating space which is located in the cylinder body and at the rear lower part of the cylinder body and is under the rear part of the bottom wall of the drawer and the rear part of the housing, and the circuit board is accommodated in the accommodating space, with a rear part of the inner space of the heating chamber being over the accommodating space and the circuit board.