HEAT DISSIPATION UNIT FOR ELECTRONIC APPARATUS

摘要

PROBLEM TO BE SOLVED: To enhance performance for dissipating heat to the outside of housing. SOLUTION: The heat dissipation unit is built in a notebook-sized personal computer 1 in order to dissipate heat generated from a CPU 5 arranged in a housing 3 to the outside. The heat dissipation unit comprises a horizontal planar heat pipe 7 arranged in the housing 3, and heat dissipation fins 20 fixed to a part of one side of the heat pipe 7. The heat pipe 7 has a container 11 defined by flat upper and lower walls, and a circumferential wall extending along the circumferential edge thereof. Heat dissipation openings 22 are made in the circumferential wall of the housing 3 in the vicinity of the fin 20 while facing the fin 20. A fan 23 passes the air in the housing 3 through the fins 20 and then delivers the air from the opening 22 to the outside of the housing 3.