MAGNETIC REFRIGERATION DEVICE

• Main Authors: MIYAZAKI YOSHIKI, IKEDA KAZUYA, WAKI KOICHIRO
• Format: Patent
• Language: English; Japanese
• Published: 01.02.2018
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; WEAPONS

PROBLEM TO BE SOLVED: To provide a magnetic refrigeration device capable of increasing a maximum value in temporal change of strength of a magnetic field applied to a magnetism work substance, and capable of enhancing refrigeration capacity.SOLUTION: A magnetic refrigeration device includes a magnetic field generation part 9 provided rotatably, a heat generation part 11 provided on an outer peripheral side with respect to the magnetic filed generation part 9, and a yoke 12 provided on the outer peripheral side with respect to the heat generation part 11. The magnetic field generation part 9 has a plurality of permanent magnets PM aligned in a Halbach array along a rotational direction. The heat generation part 11 has a plurality of ducts DC arrayed along the rotational direction, and a plurality of magnetism work parts 13 stored in each of the plurality of ducts DC and each containing a magnetism work substance 14.SELECTED DRAWING: Figure 2 【課題】磁気作業物質に印加される磁場の強度の時間変化における極大値を大きくすることができ、冷凍能力を大きくすることができる磁気冷凍装置を提供することを目的とする。【解決手段】磁気冷凍装置は、回転可能に設けられた磁場発生部９と、磁場発生部９よりも外周側に設けられた熱発生部１１と、熱発生部１１よりも外周側に設けられたヨーク１２と、を備えている。磁場発生部９は、回転方向に沿ってハルバッハ配列された複数の永久磁石ＰＭを有する。熱発生部１１は、回転方向に沿って配列された複数のダクトＤＵと、複数のダクトＤＵの各々にそれぞれ格納され、且つ、磁気作業物質１４をそれぞれ含む複数の磁気作業部１３と、を有する。【選択図】図２