The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 30, 2005
Filed:
Dec. 04, 2003
Chih-hsing Fang, Hsinchu Hsien, TW;
Wen-nan Huang, Hsinchu Hsien, TW;
Chih-hsin Chen, Hsinchu Hsien, TW;
Wan-pei Chen, Hsinchu Hsien, TW;
Kuo-ing Hwu, Hsinchu Hsien, TW;
Chih-Hsing Fang, Hsinchu Hsien, TW;
Wen-Nan Huang, Hsinchu Hsien, TW;
Chih-Hsin Chen, Hsinchu Hsien, TW;
Wan-Pei Chen, Hsinchu Hsien, TW;
Kuo-Ing Hwu, Hsinchu Hsien, TW;
Industrial Technology Research Institute, Hsinchu Hsien, TW;
Abstract
A reciprocating and rotating magnetic refrigeration apparatus adopts a dynamo concept and the design of magnetic supply path and heat transfer unit to alternately magnetize and demagnetize a magnetocaloric material to generate thermo-magnetic effect for cooling. The apparatus includes magnetocaloric material located on the head of stator nose poles, magnetic supply coils surrounding the magnetocaloric material, permanent magnets located on a rotating stator, and a heat transfer unit in contact with the magnetocaloric material. Two adjacent magnetocaloric materials magnetize and demagnetize alternately to alter the temperature and entropy of the magnetocaloric material, and through the heat transfer unit, heat exchange occurs between the magnetocaloric materials and the atmosphere to achieve the cooling effect.