| US 7,552,592 B2 | ||
| Magnetic refrigerator | ||
| Hideo Iwasaki, Kawasaki (Japan); Akihiro Kasahara, Sambu-gun (Japan); Katsumi Hisano, Matsudo (Japan); Akihiro Koga, Tokyo (Japan); Akiko Saito, Kawasaki (Japan); Tadahiko Kobayashi, Yokohama (Japan); and Takuya Takahashi, Tokyo (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan) | ||
| Filed on Sep. 19, 2006, as Appl. No. 11/533,063. | ||
| Claims priority of application No. 2005-345465 (JP), filed on Nov. 30, 2005. | ||
| Prior Publication US 2007/0125094 A1, Jun. 07, 2007 | ||
| Int. Cl. F25B 21/00 (2006.01) | ||
| U.S. Cl. 62—3.1 | 23 Claims |
| 1. A magnetic refrigerator comprising:
a generating unit which generates a magnetic field increased and reduced alternately;
a magnetic block including positive and negative magnetic segments which are alternately arranged with gaps and to which the
magnetic field is applied, the positive magnetic segments producing heat depending on the increasing of the magnetic field
and absorbing heat depending on the decreasing of the magnetic field, and the negative magnetic segments producing heat depending
on the decreasing of the magnetic field and absorbing heat depending on the increasing of the magnetic field; and
a heat conducting unit configured to conduct heat between the positive and negative magnetic segments, which includes a conducting
member which is inserted into the gap and removed from the gap, alternately, in accordance with the increasing or decreasing
of the magnetic field, the positive and negative magnetic segments and the conducting member forming a heat conducting path
in the magnetic block.
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