Plane-type heat-dissipating structure with high heat-dissipating effect and method for manufacturing the same

Abstract

A plane-type heat-dissipating structure with high heat-dissipating effect includes a first heat-dissipating unit and a second heat-dissipating unit. The first heat-dissipating unit has an evacuated hollow heat-dissipating body, a plurality of supports integratedly formed in the hollow heat-dissipating body in order to divide an inner space of the hollow heat-dissipating body into a plurality of receiving spaces, and a plurality of microstructures integratedly formed on an inner surface of the hollow heat-dissipating body. Work liquid is filled into the receiving spaces. The second heat-dissipating unit is integratedly formed on an outer surface of the first heat-dissipating unit.

1 . A plane-type heat-dissipating structure with high heat-dissipating effect, comprising:
 a first heat-dissipating unit having an evacuated hollow heat-dissipating body, a plurality of supports integratedly formed in the hollow heat-dissipating body in order to divide an inner space of the hollow heat-dissipating body into a plurality of receiving spaces, and a plurality of microstructures integratedly formed on an inner surface of the hollow heat-dissipating body, wherein work liquid is filled into the receiving spaces; and   a second heat-dissipating unit integratedly formed on an outer surface of the first heat-dissipating unit.   
     
     
         2 . The plane-type heat-dissipating structure according to  claim 1 , wherein the first heat-dissipating unit and the second heat-dissipating unit are made of aluminum alloy. 
     
     
         3 . The plane-type heat-dissipating structure according to  claim 1 , wherein the first heat-dissipating unit has a plurality of grooves formed in the receiving spaces, each groove is between every two adjacent microstructures, and each microstructure has a rectangular prism, a cylinder, a taper or a dovetailed shape. 
     
     
         4 . The plane-type heat-dissipating structure according to  claim 1 , wherein the second heat-dissipating unit has a plurality of heat-dissipating fins. 
     
     
         5 . The plane-type heat-dissipating structure according to  claim 4 , wherein the heat-dissipating fins are integratedly disposed on one part of a top surface of the hollow heat-dissipating body, and another part of the top surface of the hollow heat-dissipating body provides a space for receiving at least one heat-generating element. 
     
     
         6 . The plane-type heat-dissipating structure according to  claim 4 , wherein each heat-dissipating fin has a rectangular prism, a cylinder, a taper or a dovetailed shape. 
     
     
         7 . The plane-type heat-dissipating structure according to  claim 6 , further comprising: at least one third heat-dissipating unit having a heat-dissipating body, a plurality of heat-dissipating fins extended upwards from the heat-dissipating body, and a plurality of dovetailed retaining bodies extended downwards from the heat-dissipating body, wherein the third heat-dissipating unit is retained on the second heat-dissipating unit by matching the dovetailed retaining bodies and the dovetailed heat-dissipating fins. 
     
     
         8 . The plane-type heat-dissipating structure according to  claim 7 , wherein the second heat-dissipating unit is integratedly disposed on one part of a top surface of the hollow heat-dissipating body, and another part of the top surface of the hollow heat-dissipating body is one end surface of the hollow heat-dissipating body to provide a space for receiving at least one heat-generating element, and the third heat-dissipating unit is disposed over other end surface of the hollow heat-dissipating body. 
     
     
         9 . The plane-type heat-dissipating structure according to  claim 7 , wherein the second heat-dissipating unit is integratedly disposed on a top surface of the hollow heat-dissipating body, so that at least one heat-generating element with a dovetailed bottom seat is retained on one end surface of the second heat-dissipating unit, and the third heat-dissipating unit is retained on another opposite end surface of the second heat-dissipating unit. 
     
     
         10 . The plane-type heat-dissipating structure according to  claim 1 , further comprising: at least two third heat-dissipating units, wherein each third heat-dissipating unit has a heat-dissipating body, a plurality of heat-dissipating fins extended upwards from the heat-dissipating body, and a plurality of dovetailed retaining bodies extended downwards from the heat-dissipating body, wherein the third heat-dissipating unit is retained on the second heat-dissipating unit by matching the dovetailed retaining bodies and the dovetailed heat-dissipating fins, wherein the second heat-dissipating unit is integratedly disposed on one part of a top surface of the hollow heat-dissipating body, and another part of the top surface of the hollow heat-dissipating body is position on a central area of the first heat-dissipating unit to provide a space for receiving at least one heat-generating element, and the two third heat-dissipating units are respectively disposed over two opposite end surfaces of the hollow heat-dissipating body. 
     
     
         11 . A method for manufacturing a plane-type heat-dissipating structure with high heat-dissipating effect, comprising:
 using an extruding mold to integratedly extrude a first heat-dissipating unit and a second heat-dissipating unit, wherein the first heat-dissipating unit has a hollow heat-dissipating body, a plurality of supports integratedly formed in the hollow heat-dissipating body in order to divide an inner space of the hollow heat-dissipating body into a plurality of receiving spaces, and a plurality of microstructures integratedly formed on an inner surface of the hollow heat-dissipating body, and the second heat-dissipating unit is integratedly formed on an outer surface of the first heat-dissipating unit;   closing one end of the first heat-dissipating unit;   filling work liquid into the receiving spaces; and   extracting air from the receiving spaces and closing other opposite end of the first heat-dissipating unit to make the hollow heat-dissipating body become an evacuated hollow heat-dissipating body.   
     
     
         12 . The method according to  claim 11 , wherein the extruding mold is composed of a mold body and a spindle, the mold body has a plurality of protrusion portions disposed on an inner wall thereof, the spindle has a forming portion extending forwards from one end thereof, and the first heat-dissipating unit and the second heat-dissipating unit are integratedly extruded by matching the protrusion portions and the forming portion. 
     
     
         13 . The method according to  claim 12 , wherein the forming portion has a plurality of extending bodies connected to the spindle and extending forwards, many gaps respectively formed between every two extending bodies, and each extending body has a plurality of micro protrusions disposed on a top surface and a bottom surface thereof. 
     
     
         14 . The method according to  claim 11 , wherein the first heat-dissipating unit has a plurality of grooves formed in the receiving spaces, each groove is between every two adjacent microstructures, and each microstructure has a rectangular prism, a cylinder, a taper or a dovetailed shape. 
     
     
         15 . The method according to  claim 11 , wherein the second heat-dissipating unit has a plurality of heat-dissipating fins, and each heat-dissipating fin has a rectangular prism, a cylinder, a taper or a dovetailed shape. 
     
     
         16 . The method according to  claim 15 , wherein the heat-dissipating fins are integratedly disposed on one part of a top surface of the hollow heat-dissipating body, and another part of the top surface of the hollow heat-dissipating body provides a space for receiving at least one heat-generating element. 
     
     
         17 . The method according to  claim 16 , further comprising: at least one third heat-dissipating unit having a heat-dissipating body, a plurality of heat-dissipating fins extended upwards from the heat-dissipating body, and a plurality of dovetailed retaining bodies extended downwards from the heat-dissipating body, wherein the third heat-dissipating unit is retained on the second heat-dissipating unit by matching the dovetailed retaining bodies and the dovetailed heat-dissipating fins. 
     
     
         18 . The method according to  claim 17 , wherein the second heat-dissipating unit is integratedly disposed on one part of a top surface of the hollow heat-dissipating body, and another part of the top surface of the hollow heat-dissipating body is one end surface of the hollow heat-dissipating body to provide a space for receiving at least one heat-generating element, and the third heat-dissipating unit is disposed over other end surface of the hollow heat-dissipating body. 
     
     
         19 . The method according to  claim 17 , wherein the second heat-dissipating unit is integratedly disposed on a top surface of the hollow heat-dissipating body, so that at least one heat-generating element with a dovetailed bottom seat is retained on one end surface of the second heat-dissipating unit, and the third heat-dissipating unit is retained on another opposite end surface of the second heat-dissipating unit. 
     
     
         20 . The plane-type heat-dissipating structure according to  claim 11 , further comprising: at least two third heat-dissipating units, wherein each third heat-dissipating unit has a heat-dissipating body, a plurality of heat-dissipating fins extended upwards from the heat-dissipating body, and a plurality of dovetailed retaining bodies extended downwards from the heat-dissipating body, wherein the third heat-dissipating unit is retained on the second heat-dissipating unit by matching the dovetailed retaining bodies and the dovetailed heat-dissipating fins, wherein the second heat-dissipating unit is integratedly disposed on one part of a top surface of the hollow heat-dissipating body, and another part of the top surface of the hollow heat-dissipating body is position on a central area of the first heat-dissipating unit to provide a space for receiving at least one heat-generating element, and the two third heat-dissipating units are respectively disposed over two opposite end surfaces of the hollow heat-dissipating body.