Heatsink apparatus and electronic device having same

Abstract

A heatsink apparatus performs cooling by circulating a working fluid and causing a phase change between a liquid phase and a gas phase. The heatsink apparatus includes a box-shaped heat receiver, provided with a heat-generating body on an external wall, to transfer heat to an internal wall. The heatsink apparatus includes an inlet pipe supplying the working fluid to the heat receiver, an outlet pipe discharging vapor, into which the working fluid supplied to the heat receiver is evaporated by heat, and a heat dissipater dissipating heat of the vapor passing through the outlet pipe. An opening portion of the inlet pipe is opposite to and near the internal wall so as cause the working fluid near the internal wall to flow.

1 . A heat-sink apparatus performing cooling by circulating a working fluid, comprising:
 a box-shaped heat receiver provided with a heat-generating body on one surface of the external wall of the heat receiver, and transferring heat to an internal wall of the heat receiver corresponding to the one surface of the external wall;   an inlet pipe supplying the working fluid into the heat receiver;   an outlet pipe discharging vapor into which the working fluid supplied into the heat receiver is evaporated by heat; and   a heat dissipater dissipating heat of the vapor passing through the outlet pipe;   wherein an opening portion of the inlet pipe is opposite to and proximate to the internal wall corresponding to the one surface of the external wall so as to make flow of the working fluid in a proximity of the opening portion of the inlet pipe proximate to the internal wall corresponding to the one surface of the external wall, thereby causing the working fluid in a proximity of a surface of the internal wall corresponding to the one surface of the external wall to flow.   
     
     
         2 . The heat-sink apparatus according to  claim 1 , wherein a regulator is provided to the inlet pipe, the regulator flowing the working fluid in one direction from the heat dissipater to the heat receiver. 
     
     
         3 . The heat-sink apparatus according to  claim 1 , wherein a gap between the opening portion of the inlet pipe and the internal wall corresponding to the one surface of the external wall is between 0.07 mm and 0.2 mm. 
     
     
         4 . The heat-sink apparatus according to  claim 1 , wherein the opening portion of the inlet pipe is provided inside the box-shaped heat receiver. 
     
     
         5 . The heat-sink apparatus according to  claim 1 , wherein the opening portion of the inlet pipe is provided so as to make flow of the working fluid in the proximity of the opening portion of the inlet pipe perpendicular to the internal wall corresponding to the one surface of the external wall. 
     
     
         6 . The heat-sink apparatus according to  claim 1 , wherein the working fluid is discharged from the outlet pipe by the vapor discharged from the outlet pipe. 
     
     
         7 . The heat-sink apparatus according to  claim 1 , wherein a heat source of the heat-generating body is provided inside a virtual extended line extended from the opening portion of the inlet pipe in the one surface of the external wall. 
     
     
         8 . The heat-sink apparatus according to  claim 1 , wherein the heat-generating body is provided below the heat receiver, and an opening portion of the outlet pipe is provided inside the box-shaped heat receiver. 
     
     
         9 . The heat-sink apparatus according to  claim 1 , wherein an end portion of the opening portion of the inlet pipe includes a convex-concave shape, and the end portion is brought into contact with the internal wall corresponding to the one surface of the external wall. 
     
     
         10 . The heat-sink apparatus according to  claim 1 , wherein a flexible member is used as the inlet pipe that is located inside the heat receiver. 
     
     
         11 . The heat-sink apparatus according to  claim 1 , wherein the internal wall corresponding to the one surface of the external wall is provided with heat-dissipating fins surrounding a periphery of the opening portion of the inlet pipe. 
     
     
         12 . The heat-sink apparatus according to  claim 1 , wherein the outlet pipe that is circular shaped is provided in a periphery of the inlet pipe. 
     
     
         13 . The heat-sink apparatus according to  claim 1 , wherein in a state in which the heat receiver of the heat-sink apparatus is vertically provided, the outlet pipe is provided below the inlet pipe. 
     
     
         14 . The heat-sink apparatus according to  claim 1 , wherein in a state in which the heat receiver of the heat-sink apparatus is vertically provided, the outlet pipe is provided so as to be horizontally parallel with the inlet pipe. 
     
     
         15 . An electronic device comprising the heat-sink apparatus according to  claim 1 . 
     
     
         16 . A heat-sink apparatus performing cooling by circulating a working fluid, comprising:
 a box-shaped heat receiver provided with a heat-generating body on one surface of the external wall of the heat receiver, and transferring heat to an internal wall of the heat receiver corresponding to the one surface of the external wall;   an inlet pipe supplying the working fluid into the heat receiver;   an outlet pipe discharging vapor into which the working fluid supplied into the heat receiver is evaporated by heat; and   a heat dissipater dissipating heat of the vapor passing through the outlet pipe;   wherein an opening portion of the inlet pipe is opposite to the internal wall corresponding to the surface of the external wall;   an opening portion of the outlet pipe is provided inside the box-shaped heat receiver.   
     
     
         17 . The heat-sink apparatus according to  claim 1 , wherein a regulator is provided to the inlet pipe, the regulator flowing the working fluid in one direction from the heat dissipater to the heat receiver. 
     
     
         18 . An electronic device comprising the heat-sink apparatus according to  claim 15 .