Patent ID: 7438120
Filing Date: 2008-10-21
Classification: H01L

Abstract:
1. A cooling device, comprising: a cooling fan; and a heatsink further comprising a central heat dissipation body having a fully sealed hollow chamber filled with a cooling liquid and having an agitator therein disposed with a first magnetic element so as to attain a fast heat dissipation effect of said cooling device by way of a magnetically-dragging operation of said cooling fan; wherein said central heat dissipation body includes a cover disposed thereon, and a top side of said heat dissipation body corresponding to said cover has a ring slot, which is fitted with an O-ring so as to fully seal said chamber; and wherein said central heat dissipation body includes a recess located around an outer perimeter of said ring slot and corresponding to a protrusion disposed around a perimeter of said cover, said protrusion configured for insertion into said recess.