| 摘要 |
The ventilation device (10) for components (11) disposed in rows (R1-R4) separated by corridors (C1-C5) on one face of a substrate (12) includes an inlet conduit (14) for fresh air and an outlet conduit (15) comprising two compartments (15a; 15b) each covering two rows (R1, R2; R3, R4) of components (11) and having an opening (18a; 19b) discharging into the corridor (C2; C4) separating the respective rows. The fresh air at the inlet (16) of the conduit (14) discharges into the other corridors (C1, C3, C4) such that each component (11) receives the fresh air directly. The invention thus has the advantage of effectively cooling a great number of high-power components mounted at high density on a printed circuit board, because of its simple, compact structure, which enables ventilation with less noise and with high output.
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