The invention discloses a working medium filling
system for an independent parallel multichannel flat
heat pipe, and a filling method thereof. The filling
system comprises a working medium tank, a quantitative
system, a constant temperature common chamber, a flat
heat pipe, a variable temperature system, a vacuum system and a sealing system; and
control valves are arranged between the quantitativesystem and the constant temperature common chamber as well as between the constant temperature common chamber and the vacuum system. During filling, non-condensable gas in a pipeline system and the flat
heat pipe is pumped out firstly, and then high temperature and
high pressure working medium vapor is filled into the flat heat
pipe through the quantitative system; when
temperature and pressure vapor-liquid equilibrium is achieved, working media in the parallel multichannel flat heat
pipe are in the vapor-
liquid phase coexisting state; at the moment, one end of the parallel multichannel flatheat
pipe is sealed through the sealing system, so that the independent parallel multichannel flat heat pipe is made. The working medium filling system has the advantages of stable overall performance, the high filling quality and
automation degree, and the simple technology, and is suitable for
mass production, and the
mass consistency of the working media in each flat heat pipe channel can be controlled accurately.