Wind guide device for CPU cooler

A wind guide device for a cooling fan mounted on a CPU of a computer comprising:

• a first shroud including a first opening at one side, a second opening an opposite side, a coupling element at either side of the second opening, and a snapping element at either corner of the first shroud, the snapping element being above the coupling element and perpendicular to the second opening;
• and
• a second shroud including a first opening at one side, the first opening having a diameter smaller than that of the second opening of the first shroud, a second opening at an opposite side, a mating coupling element at either side, a mating snapping element at either side wherein the mating coupling elements and the mating snapping elements are fastened onto the coupling elements and the snapping elements at the second opening of the first shroud respectively, and an L-shaped frame element extended outward from the second opening of the second shroud;
• wherein the first opening of the first shroud having the fan mounted thereon is coupled to a vent opening on a housing of the computer, the first opening of the second shroud is coupled to the second opening of the first shroud by fastening the mating coupling elements and the mating snapping elements of the second shroud onto the coupling elements and the snapping elements at the second opening of the first shroud respectively for forming an upper air passage and a lower air passage, and fins on one side of the CPU are partially enclosed by the L-shaped frame element of the second shroud so as to cause an air current generated by the fan to accelerate through the upper and lower air passages for cooling the CPU and other electronic elements therearound.