Integrated stirling refrigerator

An integrated Stirling refrigerator, comprising:

• an eccentric shaft box defining therein a sealed cavity filled with a gas medium;
• an eccentric shaft provided rotatably around a rotation axis within the sealed cavity and comprising an eccentric segment with its center line offset from the rotation axis and a non-eccentric segment with its center line coinciding with the rotation axis;
• a stator assembly provided around the rotation axis and fixed within the sealed cavity;
• a rotor assembly provided on the non-eccentric segment around the rotation axis, with an air gap formed between the rotor assembly and the stator assembly along an axial direction;
• a compression link assembly provided within the sealed cavity and coupled to the eccentric segment;
• and
• an expansion link assembly provided within the sealed cavity and coupled to the eccentric segment;
• wherein the stator assembly and the rotor assembly form an axial flux motor arranged in the axial direction and configured to drive the eccentric shaft to rotate about the rotation axis through the rotor assembly.