Magnetically coupled fan blade and motor for a food cabinet

F - Mech Eng,Light,Heat,Weapons – 25 – D

Patent

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Details

F25D 17/06 (2006.01) A47F 3/04 (2006.01) F16D 7/00 (2006.01) F16D 27/00 (2006.01)

Patent

CA 2641858

A food cabinet includes a container holding a refrigerated food product, and the cabinet further includes a cooling device to refrigerate the food product. A fan for the cooling device includes an impeller mounted to a stationary shaft and a motor with a rotor. The impeller is exposed to fluids, but the motor and rotor are opposite a sealed surface and not exposed to the fluids. The impeller is coupled to the rotor by means of complementary sets of magnets mounted on each, such that rotation of the rotor similarly rotates the impeller.

Armoire à aliments comprenant un contenant avec un produit alimentaire réfrigéré, ainsi qu'un appareil de refroidissement afin de réfrigérer ledit produit alimentaire. Un ventilateur pour cet appareil comprend une turbine montée sur un axe stationnaire et un moteur avec un rotor. La turbine est exposée à des fluides, mais le moteur et le rotor sont de l'autre côté d'une surface scellée et ne sont pas exposés aux fluides. La turbine est accouplée au rotor par une série complémentaire d'aimants montés sur ces deux éléments, de telle sorte que la rotation du rotor entraîne également celle de la turbine.

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