Liquid cooling device

Abstract

A liquid cooling device includes a heat absorbing part, a first transmitting tube, a second transmitting tube, and a heat dissipation part, wherein the heat absorbing part has a heat block, a first expansion pipe, and a second expansion pipe. The heat block is connected to an external heat-generating component, and includes a plurality of flow channels to facilitate the flow of a coolant for absorbing the heat generated from the external heat-generating component. The first expansion pipe and the second expansion pipe are connected to the heat block respectively. The first transmitting tube and the second transmitting tube are connected to the heat dissipation part respectively to form a cooling cycle among the heat absorbing part, the first transmitting tube, the second transmitting tube, and the heat dissipation part for allowing the cooling fluid to circulate in the cycle.

1 . A liquid cooling device comprising:
 a heat absorbing part comprising:
 a heat block for contacting an external heat-generating component, the heat block having a plurality of flow channels inside and allowing a cooling fluid to flow within it in order to absorb heat generated by the external heat-generating component; 
 a first expansion pipe connected to one side of the heat block for allowing the cooling fluid to flow into the plurality of flow channels; and 
 a second expansion pipe connected to the other side of the heat block for allowing the cooling fluid to flow out of the plurality of flow channels; 
   a first transmitting tube connected to the first expansion pipe;   a second transmitting tube connected to the second expansion pipe; and   a heat dissipation part connected to the first transmitting tube and the second transmitting tube to form a cooling cycle among the heat absorbing part, the heat dissipation part, the first transmitting tube, and the second transmitting tube for allowing the cooling fluid to circulate in the cooling cycle.   
     
     
         2 . The liquid cooling device as claimed in  claim 1 , wherein a diameter of each flow channel of the plurality of flow channels is smaller than 3 mm. 
     
     
         3 . The liquid cooling device as claimed in  claim 2 , wherein each of the plurality of flow channels has a substantial circular cross-section. 
     
     
         4 . The liquid cooling device as claimed in  claim 2 , wherein each of the plurality of flow channels has a substantially rectangular or star-like cross-section. 
     
     
         5 . The liquid cooling device as claimed in  claim 2 , wherein the first expansion pipe or the second expansion pipe is substantially triangular shape. 
     
     
         6 . The liquid cooling device as claimed in  claim 4 , wherein the first expansion pipe or the second expansion pipe has a substantially rectangular cross-section; the first transmitting tube is connected to an end of the first expansion pipe; the second transmitting tube is connected to an end of the second expansion pipe. 
     
     
         7 . The liquid cooling device as claimed in  claim 1 , further comprising a pump that is located at the first transmitting tube. 
     
     
         8 . The liquid cooling device as claimed in  claim 1 , wherein the heat dissipation part further comprises a fan and cooling fins. 
     
     
         9 . The liquid cooling device as claimed in  claim 1 , wherein the heat absorbing part is made of a material with high thermal conductivity. 
     
     
         10 . The liquid cooling device as claimed in  claim 9 , wherein the heat absorbing part is made of copper.