Flow passage structure for water-cooling device

Abstract

A flow passage structure for water-cooling device includes a heat-conductive main body provided with at least one flow passage, an inlet, and an outlet; and at least one vortex-forming section. The flow passage is provided in the heat-conductive main body and has a type of cooling liquid contained therein. The flow passage includes a channel portion and a top portion integrally connected to one another to ensure a leak-free flow passage. The at least one vortex-forming section is provided on one of the channel portion and the top portion for the cooling liquid flowing therethrough to form separated vortexes, so as to enable largely increased flow field turbulence in the flow passage and accordingly upgraded heat transfer performance of the cooling liquid.

1 . A flow passage structure for water-cooling device, comprising:
 a heat-conductive main body being provided with at least one flow passage, an inlet, and an outlet; the flow passage being arranged in the heat-conductive main body and including a channel portion and a top portion; the channel portion and top portion being connected to one another to ensure a leak-free flow passage; and   at least one vortex-forming section being provided on one of the channel portion and the top portion; and   wherein the inlet and the outlet separately communicate with two opposite ends of the flow passage.   
     
     
         2 . The flow passage structure for water-cooling device as claimed in  claim 1 , wherein there are provided two and more vortex-forming sections and the vortex-forming sections are protrusions axially continuously arranged in the flow passage. 
     
     
         3 . The flow passage structure for water-cooling device as claimed in  claim 1 , wherein there are provided two and more vortex-forming sections and the vortex-forming sections are protrusions axially spaced in the flow passage. 
     
     
         4 . The flow passage structure for water-cooling device as claimed in  claim 1 , wherein there are provided two and more vortex-forming sections and the vortex-forming sections are recesses axially continuously arranged in the flow passage. 
     
     
         5 . The flow passage structure for water-cooling device as claimed in  claim 1 , wherein there are provided two and more vortex-forming sections and the vortex-forming sections are recesses axially spaced in the flow passage. 
     
     
         6 . The flow passage structure for water-cooling device as claimed in  claim 1 , wherein the channel portion includes a first wall surface, a second wall surface, and a third wall surface; the second wall surface and the third wall surface being separately connected to two opposite lateral edges of the first wall surface; and the vortex-forming sections being selectively provided on one of the first, the second and the third wall surface. 
     
     
         7 . The flow passage structure for water-cooling device as claimed in  claim 1 , wherein the heat-conductive main body has a first face and an opposite second face; the first face being in contact with at least one heat source, and the second face being provided with a plurality of heat radiating fins. 
     
     
         8 . The flow passage structure for water-cooling device as claimed in  claim 1 , wherein the inlet and the outlet of the heat-conductive main body are 
     
     
         9 . The flow passage structure for water-cooling device as claimed in  claim 2 , wherein the protrusions are selected from the group consisting of square-shaped, triangular-shaped, rectangular-shaped, round-shaped, diamond-shaped, and other geometrically-shaped protrusions. 
     
     
         10 . The flow passage structure for water-cooling device as claimed in  claim 3 , wherein the protrusions are selected from the group consisting of square-shaped, triangular-shaped, rectangular-shaped, round-shaped, diamond-shaped, and other geometrically-shaped protrusions. 
     
     
         11 . The flow passage structure for water-cooling device as claimed in  claim 4 , wherein the recesses are selected from the group consisting of square-shaped, triangular-shaped, rectangular-shaped, round-shaped, diamond-shaped, and other geometrically-shaped recesses. 
     
     
         12 . The flow passage structure for water-cooling device as claimed in  claim 5 , wherein the recesses are selected from the group consisting of square-shaped, triangular-shaped, rectangular-shaped, round-shaped, diamond-shaped, and other geometrically-shaped recesses. 
     
     
         13 . The flow passage structure for water-cooling device as claimed in  claim 1 , wherein the heat-conductive main body is formed from a base and a cover, and the cover being correspondingly closed onto an open top of the base.