Title:
MAGNETIC HEAT PUMP DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/150819
Kind Code:
A1
Abstract:
[Problem] To provide a magnetic heat pump device with which it is possible to improve magnetic flux density obtained per permanent-magnet mass. [Solution] A magnetic heat pump device 1 comprises: a built-in yoke 26 of a ferromagnetic body which is rotatable about a center axis CS of a rotary shaft 32 and which has a plurality of U-shaped storage sections 56 that open to the outer peripheral side of the rotary shaft 32 when seen from the axial direction of the center axis CS; a plurality of permanent magnets 20 which are stored in the respective storage sections 56 and contact the built-in yoke 26, the magnetization direction of the N pole and S pole of the permanent magnets being parallel to a direction orthogonal to the axial direction of the center axis CS; and a material container 22 made of resin which surrounds the outer periphery of the built-in yoke 26 and stores a magnetic material 34. When seen from the axial direction of the center axis CS, different-polarity surfaces of the permanent magnets 20 respectively contact the pairs of inner wall surfaces forming the storage sections 56, and the storage sections 56 have protruding portions 36 which are closer to the material container 22 than the permanent magnets 20.
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Inventors:
YAMAGUCHI YUSUKE (JP)
BAE SANGCHUL (JP)
BAE SANGCHUL (JP)
Application Number:
PCT/JP2018/046914
Publication Date:
August 08, 2019
Filing Date:
December 20, 2018
Export Citation:
Assignee:
SANDEN HOLDINGS CORP (JP)
International Classes:
F25B21/00
Foreign References:
| JP2008051412A | 2008-03-06 | |||
| US20160238287A1 | 2016-08-18 | |||
| US20050120720A1 | 2005-06-09 |
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