Patent ID: 8472184

Claim:
An industrial computer comprising: a printed circuit board, on which at least one heat generating component is mounted, the printed circuit board including a heat sink anchored to the top of the heat generating component to be in close contact with the top of the heat generating component, and a cooling fan anchored to the top of the heat sink; a case, within which the printed circuit board is provided, the case having a side wall, which is formed with at least one through-hole at the upper part thereof, and is formed with a plurality of opened windows at the lower part of the case to be adjacent to each other; a heat diffusion fin assembly having a substantially rectangular heat diffusion wall, the inner side of the heat diffusion wall being provided with a plurality of inner heat diffusion fins, each of which extends crosswise and which are arranged in a zigzag format in the vertical direction, and the outer side of the heat diffusion wall being provided with a plurality of outer heat diffusion fins, each of which extends longitudinally and which are spaced from each other, and side walls enclosing the heat diffusion wall, the side walls having a plurality of anchoring protrusions extending from the edges of the side walls, wherein the anchoring protrusions are fitted in anchoring holes, which are positioned around the area where the through-hole and the opened windows are formed, so that a closed space SA is provided between the case and the heat diffusion fin assembly; and a circulation pipe, one end of which is detachably joined to a peripheral frame of the cooling fan, and the other end of which is mounted on the peripheral edge of the through-hole of the case so as to allow the cooling fan and the closed space SA to be communicated with each other.