Patent ID: 7173353

Claim:
An integrated crossflow blower for cooling device comprising located inside of a volute casing a radial drum type impeller and an electric drive, wherein: (i) said volute casing comprises of an upper part, a lower part, and a spiral side part spaced between said upper and lower parts; (ii) said spiral side part has an inlet and an outlet separated by a profiled tongue spaced at the area of said spiral side part closest to said radial drum type impeller, thus gas flows through said inlet in radial direction, said radial drum type impeller and said outlet in a series way; (iii) said electric drive comprises at least one set of a flat stator and a magnetized rotor; (iv) said flat stator being integrated with said lower part thus said flat stator serving as at least a part of said lower part, and said magnetized rotor being integrated with said radial drum type impeller; (v) said flat stator comprising circumferential arrayed coils with magnetic axes being coincide with a plane of said flat stator; (vi) said radial impeller comprising blades being attached to a backplate and a shroud, and circumferential arrayed magnetic means thus serving as said magnetized rotor; (vii) said magnetic means being surrounded by said coils through a radial gap and magnetized along said plane of said flat stator thus magnetic axes of said coils and said magnetic means being located at one plane substantially.