| 摘要 |
PROBLEM TO BE SOLVED: To provide a Stirling refrigerator which has a low cost, can be formed into a compact shape, achieves simplification of a configuration, robustness of assembly accuracy and downsizing of a pressure resistant container and which can be downsized.SOLUTION: A Stirring refrigerator 101 is provided in which: a displacer 103a, a first magnet 108 for driving the displacer 103a and a second magnet 109 for driving a piston are disposed in a coaxial direction; and an internal unit 107 with a mechanical spring 110 is provided between the first and second magnets. A first coil 121 corresponding to the first magnet 108 and a second coil 122 corresponding to the second magnet 109 are provided on an outer peripheral surface of a cylinder 105. An exterior unit 106 is provided which is adjusted to a set state where a position of each of the magnets 108 and 109 is matched to a position of the coil 121 while the mechanical spring 110 is in a natural length. The first magnet 108 and the second magnet 109 receive periodical force and reciprocate at the same frequency and different phases by energizing the first and second coils 121 and 122. |
