| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic refrigerating device capable of obtaining high operation efficiency by increasing refrigerating capacity with a simple constitution without depending on magnetic working substances. SOLUTION: Disc-shaped yoke portions 43, 43 having an outer diameter slightly smaller than an inner diameter of a stator 2 are coaxially integrated with a rotor 4 at the outside of permanent magnets 5, 5 at front and back both ends in the axial direction of the rotor 4, and four magnetic working bodies 14 adjacent to outer peripheral faces of the yoke portions 43 are disposed on an inner face of the stator 2 at an outer peripheral side of the yoke portions 43. As magnetic flux is concentrated on the magnetic working bodies 14 and the yoke portions 43, high magnetic flux density can be achieved, and the refrigerating capacity can be increased to two times or more the conventional one. COPYRIGHT: (C)2008,JPO&INPIT
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