Patent ID: 7571616
Filing Date: 2009-08-11
Classification: F25B,F25D

Abstract:
1. A cooling apparatus for articles operated at a low temperature, comprising: a refrigerating machine; a cold head arranged in the refrigerating machine; a first Peltier element fixed to and thermally contacted with the cold head; and a second Peltier element fixed to and thermally contacted with the cold head; a first article arranged in thermal contact with the first Peltier element; a second article arranged in thermal contact with the second Peltier element, wherein the first and second articles are cooled to different temperatures, the first and second Peltier elements are arranged so that respective heat absorbing faces thereof are directed to the cold head, a first metallic block is provided on a surface of the first Peltier element on the opposite side to the cold head, the first article is attached to the first Peltier element via the first metallic block, a second metallic block is provided on a surface of the second Peltier element on the opposite side to the cold head, the second article is attached to the second Peltier element via the second metallic block, and a heater is provided for each of the first and second metallic blocks.