| 摘要 |
PURPOSE:To facilitate cleaning of a passage and to delete the number of assembling steps by providing a convection fan disposed vertically to a heat transfer late for forcibly convecting the air in a control board to an inner gas rectangular passage and the air out of the board to an outer gas rectangular passage. CONSTITUTION:This heat exchanger 1 is buried to be mounted in a door 41 of a control board. A space 20 in the board and a space 21 out of the board are isolated by a control board housing containing the door 41. When the exchanger 1 is operated, high temperature air in the space 20 is branched from an inner gas suction port 2b into an inner gas rectangular passage 22 as indicated by an arrow with a broken line, and returned to the space 20 by a convection fan 10 disposed under the housing. On the other hand, the low temperature air in the space 21 is branched from a suction slit 11b to an outer gas rectangular passage 23 as indicated by an arrow with a solid line, and returned to the space 21 by a convection fan 9 disposed on the housing. Thus, since the exchanger 1 can be mounted externally of the board, cleaning of the passage is facilitated, and the number of assembling steps can be deleted. |
