The present invention provides a micro loop thermosyphon cooler, having a
thermal absorption unit and a condenser sequentially arranged therein,
wherein the condenser is arranged at a position higher than that of the
thermal absorption unit by a height. The thermal absorption unit further
comprises a microchannel system formed by superimposing a cover on a
substrate having a plurality of micro-grooves arranged thereon, so that
the microchannel system is capable of allowing a fluid with a plurality
of magnetic particles to flow in and through. In this regard the thermal
absorption unit is used for absorbing thermal energy and thus enabling
the fluid to vaporize and generate bubbles accordingly for elevating and
driving the remaining fluid to flow into the condenser for discharging
heat. Moreover, the condenser is positioned over the thermal absorption
unit by a height while coupled to the outlet of the thermal absorption
unit by an inlet thereof via a conduit, and coupled to an inlet of the
thermal absorption unit by an outlet thereof via another conduit. In this
regard, the condenser is capable of condensing the vaporized fluid and
remixing the same with unvaporized fluid passing so as to enable the
remixed fluid to flow back to the thermal absorption unit by the action
of gravity.