The invention relates to a refrigerator having multiple temperature zones. A refrigerating chamber is located at the upper half part of a refrigerator body of the refrigerator; a
freezing chamber and a variable temperature chamber are located at the
lower half part of the refrigerator; a condensation section pipeline of a hot-end gravity
heat pipe is upwards arranged on the inner side of the
left wall surface of a casing of the refrigerator;
evaporation section pipelines of a cold-end gravity
heat pipe are downwards arranged on the back wall surface and left and right wall surfaces inside the variable temperature chamber; a condensation section of the cold-end gravity
heat pipe is connected with a cold end of a free-
piston Stirling cooler by the aid of a cold conduction
copper sleeve; and an
evaporation section of the hot-end gravity heat
pipe is connected with a hot end of the free-
piston Stirling cooler by the aid of a heat conduction
copper sleeve. The free-
piston Stirling cooler has the characteristics of wide
cooling temperature zone, compact structure, high low-temperature
cooling efficiency and the like and enables the variable temperature chamber to realize the lowest temperature of subzero 60 DEG C through combination with the advantages of
high heat transfer efficiency and simple structure of the gravity heat pipes. According to the novel refrigerator having the multiple temperature zones, different cooling temperatures inside the refrigerator can be accurately controlled through adjustment of the working frequency of a variable frequency compressor and the input
voltage of the free-piston Stirling cooler.