Heat dissipation apparatus

Abstract

A heat dissipation apparatus suited for dissipating heat of a heat source. The heat dissipation apparatus includes a tank, a heat-insulation unit and a pipe. The tank has an outlet end, an inlet end and an accommodating space, wherein the tank receives heat of the heat source from above. The heat-insulation unit is disposed in the accommodating space of the tank, and the heat-insulation unit includes a heat-insulation nozzle. The heat-insulation nozzle has a first opening, a second opening and a neck portion, wherein the first opening communicates with the inlet end, the second opening communicates with the accommodating space and the neck portion is near the second opening. The pipe communicates the outlet end and the inlet end and forms a closed circulating loop with the tank.

What is claimed is: 
     
         1 . A heat dissipation apparatus, suited for dissipating heat of a heat source, the heat dissipation apparatus comprising:
 a tank, having an outlet end, an inlet end and an accommodating space, wherein the tank receives heat of the heat source from above;   a heat-insulation unit, disposed in the accommodating space of the tank, the heat-insulation unit comprising a heat-insulation nozzle, and the heat-insulation nozzle having a first opening, a second opening and a neck portion, wherein the first opening communicates the inlet end, and the second opening communicates the accommodating space, and the neck portion is near the second opening; and   a pipe, communicating the outlet end and the inlet end, and forming a closed circulating loop with the tank, wherein a working fluid enters the heat-insulation unit through the inlet end of the tank, and flows to the neck portion through the first opening of the heat-insulation nozzle, and is accelerated via the neck portion, so that the working fluid ejects to the accommodating space through the second opening, and the working fluid in the accommodating space absorbs heat from the heat source and transforms into a gaseous state from a liquid state, and enters the pipe through the outlet end.   
     
     
         2 . The heat dissipation apparatus according to  claim 1 , wherein orthogonal projections of the heat source and the heat-insulation unit on a horizontal plane do not completely overlap. 
     
     
         3 . The heat dissipation apparatus according to  claim 1  further comprising:
 a condenser, disposed below the pipe, to assist the working fluid in the pipe with condensing into the liquid state and flowing back to the inlet end. 
 
     
     
         4 . The heat dissipation apparatus according to  claim 1  further comprising:
 a plurality of channels, disposed in the accommodating space of the tank, and communicate the second opening of the heat-insulation nozzle. 
 
     
     
         5 . The heat dissipation apparatus according to  claim 1  further comprising:
 a plurality of bosses, disposed dispersively in the accommodating space of the tank, orthogonal projections of the bosses and the heat-insulation unit on a horizontal plane do not overlap. 
 
     
     
         6 . The heat dissipation apparatus according to  claim 1 , wherein a material of the pipe is metal. 
     
     
         7 . The heat dissipation apparatus according to  claim 1 , wherein a material of the heat-insulation unit comprises bakelite, plastics, glass fiber, ceramics or Teflon. 
     
     
         8 . The heat dissipation apparatus according to  claim 1 , wherein the tank comprises a first locking portion, and the heat-insulation unit further comprises a second locking portion, the first locking portion and the second locking portion are locked to each other to fix the heat-insulation unit in the tank. 
     
     
         9 . The heat dissipation apparatus according to  claim 1 , wherein the working fluid is a coolant. 
     
     
         10 . The heat dissipation apparatus according to  claim 1 , wherein the heat source comprises a heat pipe, a chip or a processor.