Patent ID: 8944150
Filing Date: 2015-02-03
Classification: F28D,F28F,H01L

Abstract:
1. A heat dissipating device, comprising: a chamber having an evaporation portion and a condensation portion, wherein: the evaporation portion is operable to have a refrigerant liquid film formed on an inner surface thereof, and the condensation portion is operable to have a refrigerant vapor condense on an inner surface thereof; and a first brush, positioned adjacent to the inner surface of the evaporation portion, configured to sweep the inner surface of the evaporation portion to form the refrigerant liquid film, wherein the first brush is configured to sweep periodically and a period is determined by the following equation: wherein, t′ is the period, δo is the initial thickness of the liquid film, δ′ is the evaporation final thickness of the liquid film, ρ is the density of the refrigerant, h