Patent ID: 7779894

Claim:
A heat dissipation device comprising: a heat sink for thermally connecting with a heat-generating device; and a blower for generating an airflow to the heat sink, the blower comprising: a housing and a motor received in the housing, the motor forming a plurality of blades therearound; the housing comprising a top cover, a bottom cover and a sidewall interconnecting between the top cover and the bottom cover, an air outlet being defined in the sidewall, the heat sink being disposed in the air outlet, at least one of the top cover and the bottom cover forming a contacting surface abutting a first side of the heat sink; and at least one plate extending outwardly from the sidewall of the housing beside the air outlet, the at least one plate having an inner surface abutting a second side of the heat sink neighboring the first side of the heat sink; wherein a groove is defined in a joint of the inner surface of the at least one plate and the contacting surface of the housing to avoid interference of the housing of the blower and the heat sink.