Heat dissipating device using heat pipe

Abstract

There is provided a heat dissipating device using a heat pipe. The heat dissipating device includes a plurality of unit pipe loops. Each unit pipe loop includes: a heat absorbing part arranged adjacent to a heat source; and a heat dissipating part which is connected with the heat absorbing part and dissipates heat transferred from the heat absorbing part. A working fluid is to be provided inside the heat absorbing part and the heat dissipating part. The plurality of unit pipe loops being arranged radially with respect to the heat source.

1 . A heat dissipating device comprising:
 a plurality of unit pipe segments, and   a working fluid in each unit pipe segment;   each unit pipe segment being a capillary tube heat pipe without a wick and consisting of a heat absorbing pipe part adjacent to a heat source and a heat dissipating pipe part in communication with the heat absorbing pipe part;   the plurality of unit pipe segments being arranged to radially surround the heat source and being connected to each other to form a single loop; and   the working fluid present in the heat absorbing pipe part being capable of generating bubbles when exposed to heat from the heat source.   
     
     
         2 . The heat dissipating device according to  claim 1 , further comprising an auxiliary pipe segment which is disposed between the neighboring unit pipe segments and supports heat dissipation and
 a heat dissipating member which is coupled to each unit pipe segment,   wherein the length of each unit pipe segment is longer than a shortest straight line in a radial direction between the heat source and the heat dissipating pipe part of the unit pipe segment,   wherein the heat dissipating pipe part comprises: a first heat dissipating part which is connected with the heat absorbing pipe part and is arranged radially to have a length longer than shortest straight line in a radial direction between the heat source and the heat dissipating pipe part of the unit pipe segment; a second heat dissipating part which is connected with the first heat dissipating part and forms an outer circumferential perimeter of each unit pipe segment; and at least one projection part between the first heat dissipating part and the second heat dissipating part,   wherein at least one end part of each unit pipe segment is connected with a neighboring unit pipe segment,   wherein the heat dissipating member comprises a guide part which guides flow of the dissipated heat.   
     
     
         3 . The heat dissipating device according to  claim 1 , further comprising a holder,
 the plurality of unit pipe segments being between the holder and the mount and   a fan which is installed adjacent to the heat dissipating pipe part.   
     
     
         4 . The heat dissipating device according to  claim 1 , wherein the heat absorbing pipe part or the heat dissipating pipe part of each unit pipe segment comprises a first pipe member and a second pipe member which have a first end part and a second end part, respectively, and wherein the first end part of the first pipe member is coupled to the first end part of the second pipe member, and the second end part of the first pipe member is coupled to the second end part of the second pipe member of the neighboring unit pipe segment,
 wherein one of the end parts of the first pipe member and the end parts of the second pipe member, which are coupled each other, are expanded in diameter,   wherein the end parts of the first pipe member and the second pipe member are coupled each other by soldering.   
     
     
         5 . The heat dissipating device according to  claim 1 , wherein the plurality of unit pipe segments is connected with each other to form a single closed loop.